Merge changes I3845ca4f,I7ae1ad11

* changes:
  ONAP-PAP-REST sonar fixes
  Sonar fixes for ONAP-PAP-REST

16 files changed, 1404 insertions, 1450 deletions

diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ActionPolicyDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ActionPolicyDictionaryController.java
index 85890fc43..eaa0bb409 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ActionPolicyDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ActionPolicyDictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
@@ -56,25 +55,29 @@ public class ActionPolicyDictionaryController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(ActionPolicyDictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
-	
+	private static String utf8 = "UTF-8";
+	private static String attributeName = "attributeName";
 	@Autowired
 	public ActionPolicyDictionaryController(CommonClassDao commonClassDao){
 		ActionPolicyDictionaryController.commonClassDao = commonClassDao;
 	}
-	
-	public ActionPolicyDictionaryController(){}
+	/*
+	 * This is an empty constructor
+	 */	
+	public ActionPolicyDictionaryController(){
+		
+	}
 
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
 	}
 
 	@RequestMapping(value={"/get_ActionPolicyDictDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getActionEntitybyName(HttpServletRequest request, HttpServletResponse response){
+	public void getActionEntitybyName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("actionPolicyDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ActionPolicyDict.class, "attributeName")));
+			model.put("actionPolicyDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ActionPolicyDict.class, attributeName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -85,7 +88,7 @@ public class ActionPolicyDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ActionPolicyDictData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getActionPolicyDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getActionPolicyDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -104,13 +107,13 @@ public class ActionPolicyDictionaryController {
 	}
 
 	@RequestMapping(value={"/action_dictionary/save_ActionDict"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException   {
+	public ModelAndView saveActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException   {
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
 
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter("apiflag")!=null && ("api").equalsIgnoreCase(request.getParameter("apiflag"))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -126,11 +129,10 @@ public class ActionPolicyDictionaryController {
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(actionPolicyDict.getAttributeName(), "attributeName", ActionPolicyDict.class);
-					int id = 0;
+				if (("update").equals(request.getParameter("operation"))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(actionPolicyDict.getAttributeName(), attributeName, ActionPolicyDict.class);
 					ActionPolicyDict data = (ActionPolicyDict) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						actionPolicyDict.setId(1);
@@ -146,7 +148,7 @@ public class ActionPolicyDictionaryController {
 			}
 			String header = "";
 			int counter = 0;
-			if(adapter.getHeaders().size() > 0){
+			if(!adapter.getHeaders().isEmpty()){
 				for(Object attribute : adapter.getHeaders()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
 						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
@@ -162,7 +164,7 @@ public class ActionPolicyDictionaryController {
 			}
 			actionPolicyDict.setHeader(header);
 			if(actionPolicyDict.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(actionPolicyDict.getAttributeName(), "attributeName", ActionPolicyDict.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(actionPolicyDict.getAttributeName(), attributeName, ActionPolicyDict.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -186,7 +188,7 @@ public class ActionPolicyDictionaryController {
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !("Duplicate").equals(responseString)) {
 					if(isFakeUpdate) {
 						responseString = "Exists";
 					} else {
@@ -198,9 +200,9 @@ public class ActionPolicyDictionaryController {
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
 				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8"); 
+				request.setCharacterEncoding(utf8); 
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{actionPolicyDictionaryDatas: " + responseString + "}");
@@ -210,9 +212,9 @@ public class ActionPolicyDictionaryController {
 			}
 		}
 		catch (Exception e){
-			LOGGER.error(e.getMessage(),e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e.getMessage());
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -220,16 +222,16 @@ public class ActionPolicyDictionaryController {
 	}
 
 	@RequestMapping(value={"/action_dictionary/remove_actionPolicyDict"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ActionPolicyDict actionPolicyDict = (ActionPolicyDict)mapper.readValue(root.get("data").toString(), ActionPolicyDict.class);
 			commonClassDao.delete(actionPolicyDict);
-			response.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
 			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -240,9 +242,9 @@ public class ActionPolicyDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			LOGGER.error(e.getMessage(),e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e.getMessage());
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -251,13 +253,13 @@ public class ActionPolicyDictionaryController {
 }
 
 class ActionAdapter{
-	private ArrayList<Object> headers;
+	private List<Object> headers;
 
-	public ArrayList<Object> getHeaders() {
+	public List<Object> getHeaders() {
 		return headers;
 	}
 
-	public void setHeaders(ArrayList<Object> headers) {
+	public void setHeaders(List<Object> headers) {
 		this.headers = headers;
 	}
 }
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/BRMSDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/BRMSDictionaryController.java
index a459adaec..beee437e4 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/BRMSDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/BRMSDictionaryController.java
@@ -23,7 +23,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
-import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 import java.util.Date;
 import java.util.HashMap;
@@ -64,27 +63,44 @@ public class BRMSDictionaryController{
 
 	
 	private static CommonClassDao commonClassDao;
-	
+	private static String rule;
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	private static String successMsg = "Success";
+	private static String successMessage = "success";
+	private static String duplicateResponseString = "Duplicate";
+	private static String ruleName = "ruleName";
+	private static String successMapKey = "successMapKey";
+	private static String errorMsg	= "error";
+	private static String errorMessage	= "Error";
+	private static String dictionaryDBQuery = "dictionaryDBQuery";
+	private static String operation = "operation";
+	private static String getDictionary =  "getDictionary";
+	private static String apiflag = "apiflag";
+	private static String dictionaryFields ="dictionaryFields";
+	private static String update = "update";
+	private static String userid = "userid";
+	private static String dependencyName = "dependencyName";
+	private static String controllerName = "controllerName";
 	@Autowired
 	public BRMSDictionaryController(CommonClassDao commonClassDao){
 		BRMSDictionaryController.commonClassDao = commonClassDao;
 	}
-	
+	/*
+	 * This is an empty constructor
+	 */	
 	public BRMSDictionaryController() {}
-
-	private String rule;
 	
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);	
 	}
 
 	@RequestMapping(value={"/get_BRMSParamDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getBRMSParamDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getBRMSParamDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("brmsParamDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSParamTemplate.class, "ruleName")));
+			model.put("brmsParamDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSParamTemplate.class, ruleName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -95,26 +111,26 @@ public class BRMSDictionaryController{
 	}
 	
 	@RequestMapping(value={"/get_BRMSParamData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getBRMSParamDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getBRMSParamDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("brmsParamDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(BRMSParamTemplate.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-            response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(successMapKey, successMessage); 
+            response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 	
 	@RequestMapping(value={"/brms_dictionary/set_BRMSParamData"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public void SetRuleData(HttpServletRequest request, HttpServletResponse response) throws IOException{
+	public void SetRuleData(HttpServletRequest request) throws IOException{
 		StringWriter writer = new StringWriter();
 		IOUtils.copy(request.getInputStream() , writer, StandardCharsets.UTF_8);
 		String cleanStreamBoundary =  writer.toString().replaceFirst("------(.*)(?s).*octet-stream", "");
@@ -122,11 +138,11 @@ public class BRMSDictionaryController{
 	}
 	
 	@RequestMapping(value={"/brms_dictionary/save_BRMSParam"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView saveBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try {
 			boolean duplicateflag = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -136,26 +152,25 @@ public class BRMSDictionaryController{
             BRMSParamTemplate bRMSParamTemplateData;
             String userId = null;
             if(fromAPI) {
-                bRMSParamTemplateData = (BRMSParamTemplate)mapper.readValue(root.get("dictionaryFields").toString(), BRMSParamTemplate.class);
+                bRMSParamTemplateData = (BRMSParamTemplate)mapper.readValue(root.get(dictionaryFields).toString(), BRMSParamTemplate.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(bRMSParamTemplateData.getRuleName(), "ruleName", BRMSParamTemplate.class);
-                	int id = 0;
+                if ((update).equals(request.getParameter(operation))) {
+                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(bRMSParamTemplateData.getRuleName(), ruleName, BRMSParamTemplate.class);
                 	BRMSParamTemplate data = (BRMSParamTemplate) duplicateData.get(0);
-                	id = data.getId();
+                	int id = data.getId();
                 	bRMSParamTemplateData.setId(id);
                 	bRMSParamTemplateData.setUserCreatedBy(this.getUserInfo(userId));
                 }
             } else {
                 bRMSParamTemplateData = (BRMSParamTemplate)mapper.readValue(root.get("brmsParamDictionaryData").toString(), BRMSParamTemplate.class);
-                userId = root.get("userid").textValue();
+                userId = root.get(userid).textValue();
             }
             
 			bRMSParamTemplateData.setRule(rule);
 			if(bRMSParamTemplateData.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(bRMSParamTemplateData.getRuleName(), "ruleName", BRMSParamTemplate.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(bRMSParamTemplateData.getRuleName(), ruleName, BRMSParamTemplate.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -165,27 +180,27 @@ public class BRMSDictionaryController{
 			}else{
 				commonClassDao.update(bRMSParamTemplateData); 
 			} 
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(BRMSDictionaryController.commonClassDao.getData(BRMSParamTemplate.class));
 			}
             if(fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
-                    responseString = "Success";
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
+                    responseString = successMsg;
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-            	response.setCharacterEncoding("UTF-8");
-            	response.setContentType("application / json");
-            	request.setCharacterEncoding("UTF-8");
+            	response.setCharacterEncoding(utf8);
+            	response.setContentType(applicationJsonContentType);
+            	request.setCharacterEncoding(utf8);
 
             	PrintWriter out = response.getWriter();
             	JSONObject j = new JSONObject("{brmsParamDictionaryDatas: " + responseString + "}");
@@ -194,9 +209,9 @@ public class BRMSDictionaryController{
             }
 		}
 		catch (Exception e){
-			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW , e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -204,16 +219,16 @@ public class BRMSDictionaryController{
 	}
 
 	@RequestMapping(value={"/brms_dictionary/remove_brmsParam"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response)throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response)throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			BRMSParamTemplate bRMSParamTemplateData = (BRMSParamTemplate)mapper.readValue(root.get("data").toString(), BRMSParamTemplate.class);
 			commonClassDao.delete(bRMSParamTemplateData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -225,8 +240,8 @@ public class BRMSDictionaryController{
 		}
 		catch (Exception e){
 			 LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -234,11 +249,11 @@ public class BRMSDictionaryController{
 	}
 	
     @RequestMapping(value={"/get_BRMSDependencyDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getBRMSDependencyDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getBRMSDependencyDictionaryByNameEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
-            model.put("brmsDependencyDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSDependency.class, "dependencyName")));
+            model.put("brmsDependencyDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSDependency.class, dependencyName)));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
             response.getWriter().write(j.toString());
@@ -249,32 +264,32 @@ public class BRMSDictionaryController{
     }
     
     @RequestMapping(value={"/get_BRMSDependencyData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getBRMSDependencyDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getBRMSDependencyDictionaryEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
             model.put("brmsDependencyDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(BRMSDependency.class)));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
-            response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(successMapKey, successMessage); 
+            response.addHeader(operation, getDictionary);
             response.getWriter().write(j.toString());
         }
         catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader("error", "dictionaryDBQuery");
+            response.addHeader(errorMsg, dictionaryDBQuery);
         }
     }
     
     @RequestMapping(value={"/brms_dictionary/save_BRMSDependencyData"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView saveBRMSDependencyDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+    public ModelAndView saveBRMSDependencyDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
         try {
             boolean duplicateflag = false;
             LOGGER.debug("DictionaryController:  saveBRMSDependencyDictionary() is called");
             
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
             
@@ -285,12 +300,12 @@ public class BRMSDictionaryController{
             BRMSDependency brmsDependency;
             String userId = null;
             if (fromAPI) {
-                brmsDependency = (BRMSDependency)mapper.readValue(root.get("dictionaryFields").toString(), BRMSDependency.class);
+                brmsDependency = (BRMSDependency)mapper.readValue(root.get(dictionaryFields).toString(), BRMSDependency.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated
-                if (request.getParameter("operation").equals("update")) {
-                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsDependency.getDependencyName(), "dependencyName", BRMSDependency.class);
+                if ((update).equals(request.getParameter(operation))) {
+                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsDependency.getDependencyName(), dependencyName, BRMSDependency.class);
                 	int id = 0;
                 	BRMSDependency data = (BRMSDependency) duplicateData.get(0);
                 	id = data.getId();
@@ -299,13 +314,13 @@ public class BRMSDictionaryController{
                 }
             } else {
                 brmsDependency = (BRMSDependency)mapper.readValue(root.get("brmsDependencyDictionaryData").toString(), BRMSDependency.class);
-                userId = root.get("userid").textValue();
+                userId = root.get(userid).textValue();
             }
             
             LOGGER.audit("the userId from the onap portal is: " + userId);
             String responseString = null;
             
-            if(brmsDependency.getDependency()!=null && !brmsDependency.getDependency().trim().equals("")){
+            if(brmsDependency.getDependency()!=null && !("").equals(brmsDependency.getDependency().trim())){
                 PEDependency dependency = null;
                 try{
                     dependency = PolicyUtils.jsonStringToObject(brmsDependency.getDependency(), PEDependency.class);
@@ -313,10 +328,10 @@ public class BRMSDictionaryController{
                     LOGGER.error(XACMLErrorConstants.ERROR_SCHEMA_INVALID + "wrong data given for BRMS PEDependency Dictionary : " + brmsDependency.getDependency(),e);
                 }
                 if(dependency==null){
-                    responseString = "Error";
+                    responseString = errorMessage;
                 }else{
                     if(brmsDependency.getId() == 0){
-                        List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsDependency.getDependencyName(), "dependencyName", BRMSDependency.class);
+                        List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsDependency.getDependencyName(), dependencyName, BRMSDependency.class);
                         if(!duplicateData.isEmpty()){
                             duplicateflag = true;
                         }else{
@@ -331,23 +346,23 @@ public class BRMSDictionaryController{
                         commonClassDao.update(brmsDependency); 
                     }
                     if(duplicateflag) {
-                        responseString = "Duplicate";
+                        responseString = duplicateResponseString;
                     } else {
                         responseString = mapper.writeValueAsString(commonClassDao.getData(BRMSDependency.class));
                     }
                 }
             }
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate") && !responseString.equals("Error")) {
-                    responseString = "Success";
+                if (responseString!=null && !(duplicateResponseString).equals(responseString) && !(errorMessage).equals(responseString)) {
+                    responseString = successMsg;
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{brmsDependencyDictionaryDatas: " + responseString + "}");
                 out.write(j.toString());
@@ -356,8 +371,8 @@ public class BRMSDictionaryController{
             }
         } catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
         }
@@ -365,16 +380,16 @@ public class BRMSDictionaryController{
     }
  
     @RequestMapping(value={"/brms_dictionary/remove_brmsDependency"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView removeBRMSDependencyDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+    public ModelAndView removeBRMSDependencyDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
         try{
             ObjectMapper mapper = new ObjectMapper();
             mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
             JsonNode root = mapper.readTree(request.getReader());
             BRMSDependency brmsDependency = (BRMSDependency)mapper.readValue(root.get("data").toString(), BRMSDependency.class);
             commonClassDao.delete(brmsDependency);
-            response.setCharacterEncoding("UTF-8");
-            response.setContentType("application / json");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            response.setContentType(applicationJsonContentType);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             String responseString = mapper.writeValueAsString(commonClassDao.getData(BRMSDependency.class));
             JSONObject j = new JSONObject("{brmsDependencyDictionaryDatas: " + responseString + "}");
@@ -383,8 +398,8 @@ public class BRMSDictionaryController{
         }
         catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
         }
@@ -393,11 +408,11 @@ public class BRMSDictionaryController{
     
     
     @RequestMapping(value={"/get_BRMSControllerDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getBRMSControllerDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getBRMSControllerDictionaryByNameEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
-            model.put("brmsControllerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSController.class, "controllerName")));
+            model.put("brmsControllerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(BRMSController.class, controllerName)));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
             response.getWriter().write(j.toString());
@@ -408,31 +423,31 @@ public class BRMSDictionaryController{
     }
     
     @RequestMapping(value={"/get_BRMSControllerData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getBRMSControllerDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getBRMSControllerDictionaryEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
             model.put("brmsControllerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(BRMSController.class)));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
-            response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(successMapKey, successMessage); 
+            response.addHeader(operation, getDictionary);
             response.getWriter().write(j.toString());
         }
         catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader("error", "dictionaryDBQuery");
+            response.addHeader(errorMsg, dictionaryDBQuery);
         }
     }
     
     @RequestMapping(value={"/brms_dictionary/save_BRMSControllerData"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView saveBRMSControllerDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+    public ModelAndView saveBRMSControllerDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
         try {
             boolean duplicateflag = false;
             LOGGER.debug("DictionaryController:  saveBRMSControllerDictionary() is called");
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
             ObjectMapper mapper = new ObjectMapper();
@@ -441,11 +456,11 @@ public class BRMSDictionaryController{
             BRMSController brmsController;
             String userId = null;
             if (fromAPI) {
-                brmsController = (BRMSController)mapper.readValue(root.get("dictionaryFields").toString(), BRMSController.class);
+                brmsController = (BRMSController)mapper.readValue(root.get(dictionaryFields).toString(), BRMSController.class);
                 userId = "API";
                 //check if update operation or create, get id for data to be updated
-                if (request.getParameter("operation").equals("update")) {
-                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsController.getControllerName(), "controllerName", BRMSController.class);
+                if ((update).equals(request.getParameter(operation))) {
+                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsController.getControllerName(), controllerName, BRMSController.class);
                 	int id = 0;
                 	BRMSController data = (BRMSController) duplicateData.get(0);
                 	id = data.getId();
@@ -454,11 +469,11 @@ public class BRMSDictionaryController{
                 }
             } else {
                 brmsController = (BRMSController)mapper.readValue(root.get("brmsControllerDictionaryData").toString(), BRMSController.class);
-                userId = root.get("userid").textValue();
+                userId = root.get(userid).textValue();
             }
             LOGGER.audit("the userId from the onap portal is: " + userId);
             String responseString = null;
-            if(brmsController.getController()!=null && !brmsController.getController().trim().equals("")){
+            if(brmsController.getController()!=null && !("").equals(brmsController.getController().trim())){
                 PEDependency dependency = null;
                 try{
                     dependency = PolicyUtils.jsonStringToObject(brmsController.getController(), PEDependency.class);
@@ -466,10 +481,10 @@ public class BRMSDictionaryController{
                     LOGGER.error(XACMLErrorConstants.ERROR_SCHEMA_INVALID + "wrong data given for BRMS Controller Dictionary : " + brmsController.getController(),e);
                 }
                 if(dependency==null){
-                    responseString = "Error";
+                    responseString = errorMessage;
                 }else{
                     if(brmsController.getId() == 0){
-                        List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsController.getControllerName(), "controllerName", BRMSController.class);
+                        List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(brmsController.getControllerName(), controllerName, BRMSController.class);
                         if(!duplicateData.isEmpty()){
                             duplicateflag = true;
                         }else{
@@ -484,23 +499,23 @@ public class BRMSDictionaryController{
                         commonClassDao.update(brmsController); 
                     }
                     if(duplicateflag) {
-                        responseString = "Duplicate";
+                        responseString = duplicateResponseString;
                     } else {
                         responseString = mapper.writeValueAsString(commonClassDao.getData(BRMSController.class));
                     }
                 }
             }
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate") && !responseString.equals("Error")) {
-                    responseString = "Success";
+                if (responseString!=null && !(duplicateResponseString).equals(responseString) && !(errorMessage).equals(responseString)) {
+                    responseString = successMsg;
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{brmsControllerDictionaryDatas: " + responseString + "}");
                 out.write(j.toString());
@@ -508,8 +523,8 @@ public class BRMSDictionaryController{
             }
         } catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
         }
@@ -517,16 +532,16 @@ public class BRMSDictionaryController{
     }
  
     @RequestMapping(value={"/brms_dictionary/remove_brmsController"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView removeBRMSControllerDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+    public ModelAndView removeBRMSControllerDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
         try{
             ObjectMapper mapper = new ObjectMapper();
             mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
             JsonNode root = mapper.readTree(request.getReader());
             BRMSController brmsController = (BRMSController)mapper.readValue(root.get("data").toString(), BRMSController.class);
             commonClassDao.delete(brmsController);
-            response.setCharacterEncoding("UTF-8");
-            response.setContentType("application / json");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            response.setContentType(applicationJsonContentType);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             String responseString = mapper.writeValueAsString(commonClassDao.getData(BRMSController.class));
             JSONObject j = new JSONObject("{brmsControllerDictionaryDatas: " + responseString + "}");
@@ -535,8 +550,8 @@ public class BRMSDictionaryController{
         }
         catch (Exception e){
             LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
         }
@@ -544,11 +559,11 @@ public class BRMSDictionaryController{
     }
     
     public BRMSDependency getDependencyDataByID(String dependencyName){
-        return (BRMSDependency) commonClassDao.getEntityItem(BRMSDependency.class, "dependencyName", dependencyName);
+        return (BRMSDependency) commonClassDao.getEntityItem(BRMSDependency.class, dependencyName, dependencyName);
     }
     
     public BRMSController getControllerDataByID(String controllerName){
-        return (BRMSController) commonClassDao.getEntityItem(BRMSController.class, "controllerName", controllerName);
+        return (BRMSController) commonClassDao.getEntityItem(BRMSController.class, controllerName, controllerName);
     }
 	
 }
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ClosedLoopDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ClosedLoopDictionaryController.java
index a2a6d6e70..d142a46f3 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ClosedLoopDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/ClosedLoopDictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
@@ -62,26 +61,47 @@ public class ClosedLoopDictionaryController{
 	private static final Logger LOGGER = FlexLogger.getLogger(ClosedLoopDictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
+	private static String vsclaction = "vsclaction";
+	private static String successMapKey = "successMapKey";
+	private static String successMessage = "success";
+	private static String operation = "operation";
+	private static String getDictionary = "getDictionary";
+	private static String dictionaryDBQuery = "dictionaryDBQuery";
+	private static String errorMsg	= "error";
+	private static String vnftype = "vnftype";
+	private static String pepName = "pepName";
+	private static String varbindName = "varbindName";
+	private static String serviceName = "serviceName";
+	private static String siteName = "siteName";
+	private static String apiflag = "apiflag";
+	private static String dictionaryFields = "dictionaryFields";
+	private static String update = "update";
+	private static String duplicateResponseString = "Duplicate";
+	private static String userid = "userid";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	private static String successMsg = "Success";
 	
 	@Autowired
 	public ClosedLoopDictionaryController(CommonClassDao commonClassDao){
 		ClosedLoopDictionaryController.commonClassDao = commonClassDao;
 	}
-	
+	/*
+	 * This is an empty constructor
+	 */
 	public ClosedLoopDictionaryController(){}
 
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
 	}
 
 
 	@RequestMapping(value={"/get_VSCLActionDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVSCLActionDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVSCLActionDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("vsclActionDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VSCLAction.class, "vsclaction")));
+			model.put("vsclActionDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VSCLAction.class, vsclaction)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -93,34 +113,34 @@ public class ClosedLoopDictionaryController{
 
 
 	@RequestMapping(value={"/get_VSCLActionData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVSCLActionDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVSCLActionDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("vsclActionDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(VSCLAction.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_VNFTypeDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVNFTypeDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVNFTypeDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("vnfTypeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VNFType.class, "vnftype")));
+			model.put("vnfTypeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VNFType.class, vnftype)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
@@ -129,30 +149,30 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/get_VNFTypeData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVNFTypeDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVNFTypeDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("vnfTypeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(VNFType.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_PEPOptionsDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPEPOptionsDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPEPOptionsDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("pepOptionsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(PEPOptions.class, "pepName")));
+			model.put("pepOptionsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(PEPOptions.class, pepName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -163,30 +183,30 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/get_PEPOptionsData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPEPOptionsDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPEPOptionsDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("pepOptionsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PEPOptions.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_VarbindDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVarbindDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVarbindDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("varbindDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VarbindDictionary.class, "varbindName")));
+			model.put("varbindDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(VarbindDictionary.class, varbindName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -197,30 +217,30 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/get_VarbindDictionaryData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getVarbindDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getVarbindDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("varbindDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(VarbindDictionary.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_ClosedLoopServicesDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getClosedLoopServiceDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getClosedLoopServiceDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("closedLoopServiceDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ClosedLoopD2Services.class, "serviceName")));
+			model.put("closedLoopServiceDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ClosedLoopD2Services.class, serviceName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -231,30 +251,30 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/get_ClosedLoopServicesData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getClosedLoopServiceDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getClosedLoopServiceDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("closedLoopServiceDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(ClosedLoopD2Services.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_ClosedLoopSiteDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getClosedLoopSiteDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getClosedLoopSiteDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("closedLoopSiteDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ClosedLoopSite.class, "siteName")));
+			model.put("closedLoopSiteDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ClosedLoopSite.class, siteName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -265,31 +285,31 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/get_ClosedLoopSiteData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getClosedLoopSiteDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getClosedLoopSiteDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("closedLoopSiteDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(ClosedLoopSite.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_vsclAction"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveVSCLAction(HttpServletRequest request, HttpServletResponse response)throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveVSCLAction(HttpServletRequest request, HttpServletResponse response)throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -298,15 +318,14 @@ public class ClosedLoopDictionaryController{
 			VSCLAction vSCLAction;
 			String userId = null;
 			if (fromAPI) {
-				vSCLAction = (VSCLAction)mapper.readValue(root.get("dictionaryFields").toString(), VSCLAction.class);
+				vSCLAction = (VSCLAction)mapper.readValue(root.get(dictionaryFields).toString(), VSCLAction.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vSCLAction.getVsclaction(), "vsclaction", VSCLAction.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vSCLAction.getVsclaction(), vsclaction, VSCLAction.class);
 					VSCLAction data = (VSCLAction) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						vSCLAction.setId(1);
@@ -319,10 +338,10 @@ public class ClosedLoopDictionaryController{
 
 			} else {
 				vSCLAction = (VSCLAction)mapper.readValue(root.get("vsclActionDictionaryData").toString(), VSCLAction.class);
-				userId = root.get("userid").textValue();
+				userId = root.get(userid).textValue();
 			}
 			if(vSCLAction.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vSCLAction.getVsclaction(), "vsclaction", VSCLAction.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vSCLAction.getVsclaction(), vsclaction, VSCLAction.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -340,16 +359,16 @@ public class ClosedLoopDictionaryController{
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(VSCLAction.class));
 			}	
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate) {
 						responseString = "Exists";
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}               
 
 				}
@@ -357,9 +376,9 @@ public class ClosedLoopDictionaryController{
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json"); 
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType); 
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{vsclActionDictionaryDatas: " + responseString + "}");
@@ -369,8 +388,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -378,16 +397,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_VsclAction"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeVSCLAction(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeVSCLAction(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			VSCLAction vSCLAction = (VSCLAction)mapper.readValue(root.get("data").toString(), VSCLAction.class);
 			commonClassDao.delete(vSCLAction);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -399,8 +418,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -408,13 +427,13 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_vnfType"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveVnfType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveVnfType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
 
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -424,15 +443,14 @@ public class ClosedLoopDictionaryController{
 			String userId = null;
 
 			if (fromAPI) {
-				vNFType = (VNFType)mapper.readValue(root.get("dictionaryFields").toString(), VNFType.class);
+				vNFType = (VNFType)mapper.readValue(root.get(dictionaryFields).toString(), VNFType.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vNFType.getVnftype(), "vnftype", VNFType.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vNFType.getVnftype(), vnftype, VNFType.class);
 					VNFType data = (VNFType) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						vNFType.setId(1);
@@ -443,10 +461,10 @@ public class ClosedLoopDictionaryController{
 				}
 			} else {
 				vNFType = (VNFType)mapper.readValue(root.get("vnfTypeDictionaryData").toString(), VNFType.class);
-				userId = root.get("userid").textValue();
+				userId = root.get(userid).textValue();
 			}
 			if(vNFType.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vNFType.getVnftype(), "vnftype", VNFType.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(vNFType.getVnftype(), vnftype, VNFType.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -463,25 +481,25 @@ public class ClosedLoopDictionaryController{
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(VNFType.class));
 			} 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate) {
 						responseString = "Exists";
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}        
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result; 
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{vnfTypeDictionaryDatas: " + responseString + "}");
@@ -491,8 +509,8 @@ public class ClosedLoopDictionaryController{
 		} 
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -500,16 +518,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_vnfType"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeVnfType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeVnfType(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			VNFType vNFType = (VNFType)mapper.readValue(root.get("data").toString(), VNFType.class);
 			commonClassDao.delete(vNFType);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -521,8 +539,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -530,12 +548,12 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_pepOptions"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePEPOptions(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePEPOptions(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -545,16 +563,15 @@ public class ClosedLoopDictionaryController{
             GridData gridData;
             String userId = null;
             if (fromAPI) {
-                pEPOptions = (PEPOptions)mapper.readValue(root.get("dictionaryFields").toString(), PEPOptions.class);
-                gridData = (GridData)mapper.readValue(root.get("dictionaryFields").toString(), GridData.class);
+                pEPOptions = (PEPOptions)mapper.readValue(root.get(dictionaryFields).toString(), PEPOptions.class);
+                gridData = (GridData)mapper.readValue(root.get(dictionaryFields).toString(), GridData.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(pEPOptions.getPepName(), "pepName", PEPOptions.class);
-                    int id = 0;
+                if ((update).equals(request.getParameter(operation))) {
+                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(pEPOptions.getPepName(), pepName, PEPOptions.class);
                     PEPOptions data = (PEPOptions) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     if(id==0){
                         isFakeUpdate=true;
                         pEPOptions.setId(1);
@@ -566,11 +583,11 @@ public class ClosedLoopDictionaryController{
             } else {
             	pEPOptions = (PEPOptions)mapper.readValue(root.get("pepOptionsDictionaryData").toString(), PEPOptions.class);
             	gridData = (GridData)mapper.readValue(root.get("pepOptionsDictionaryData").toString(), GridData.class);
-            	userId = root.get("userid").textValue();
+            	userId = root.get(userid).textValue();
             }
 			String actions = "";
 			int counter = 0;
-			if(gridData.getAttributes().size() > 0){
+			if(!gridData.getAttributes().isEmpty()){
 				for(Object attribute : gridData.getAttributes()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
 						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
@@ -586,7 +603,7 @@ public class ClosedLoopDictionaryController{
 			}
 			pEPOptions.setActions(actions);
 			if(pEPOptions.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(pEPOptions.getPepName(), "pepName", PEPOptions.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(pEPOptions.getPepName(), pepName, PEPOptions.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -603,16 +620,16 @@ public class ClosedLoopDictionaryController{
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(PEPOptions.class));
             } 
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
-                        responseString = "Success";
+                        responseString = successMsg;
                     } 
                 }
                 
@@ -620,9 +637,9 @@ public class ClosedLoopDictionaryController{
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{pepOptionsDictionaryDatas: " + responseString + "}");
@@ -632,8 +649,8 @@ public class ClosedLoopDictionaryController{
  
         }catch (Exception e){
         	LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -641,16 +658,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_pepOptions"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePEPOptions(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removePEPOptions(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PEPOptions pEPOptions = (PEPOptions)mapper.readValue(root.get("data").toString(), PEPOptions.class);
 			commonClassDao.delete(pEPOptions);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -662,8 +679,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -671,12 +688,12 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_service"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveServiceType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveServiceType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -685,15 +702,14 @@ public class ClosedLoopDictionaryController{
             ClosedLoopD2Services serviceData;
             String userId = null;
             if (fromAPI) {
-                serviceData = (ClosedLoopD2Services)mapper.readValue(root.get("dictionaryFields").toString(), ClosedLoopD2Services.class);
+                serviceData = (ClosedLoopD2Services)mapper.readValue(root.get(dictionaryFields).toString(), ClosedLoopD2Services.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceData.getServiceName(), "serviceName", ClosedLoopD2Services.class);
-                    int id = 0;
+                if ((update).equals(request.getParameter(operation))) {
+                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceData.getServiceName(), serviceName, ClosedLoopD2Services.class);
                     ClosedLoopD2Services data = (ClosedLoopD2Services) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     if(id==0){
                         isFakeUpdate=true;
                         serviceData.setId(1);
@@ -704,10 +720,10 @@ public class ClosedLoopDictionaryController{
                 }
             } else {
             	serviceData = (ClosedLoopD2Services)mapper.readValue(root.get("closedLoopServiceDictionaryData").toString(), ClosedLoopD2Services.class);
-            	userId = root.get("userid").textValue();
+            	userId = root.get(userid).textValue();
             }
 			if(serviceData.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceData.getServiceName(), "serviceName", ClosedLoopD2Services.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceData.getServiceName(), serviceName, ClosedLoopD2Services.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -724,25 +740,25 @@ public class ClosedLoopDictionaryController{
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(ClosedLoopD2Services.class));
             } 
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
-                        responseString = "Success";
+                        responseString = successMsg;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{closedLoopServiceDictionaryDatas: " + responseString + "}");
@@ -751,8 +767,8 @@ public class ClosedLoopDictionaryController{
             }
         }catch (Exception e){
         	LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -760,16 +776,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_Service"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeServiceType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeServiceType(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ClosedLoopD2Services closedLoopD2Services = (ClosedLoopD2Services)mapper.readValue(root.get("data").toString(), ClosedLoopD2Services.class);
 			commonClassDao.delete(closedLoopD2Services);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -781,8 +797,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -790,13 +806,13 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_siteName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveSiteType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveSiteType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
             
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -805,14 +821,13 @@ public class ClosedLoopDictionaryController{
             ClosedLoopSite siteData;
             String userId = null;
             if (fromAPI) {
-                siteData = (ClosedLoopSite)mapper.readValue(root.get("dictionaryFields").toString(), ClosedLoopSite.class);
+                siteData = (ClosedLoopSite)mapper.readValue(root.get(dictionaryFields).toString(), ClosedLoopSite.class);
                 userId = "API";
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(siteData.getSiteName(), "siteName", ClosedLoopSite.class);
-                    int id = 0;
+                if ((update).equals(request.getParameter(operation))) {
+                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(siteData.getSiteName(), siteName, ClosedLoopSite.class);
                     ClosedLoopSite data = (ClosedLoopSite) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     if(id==0){
                         isFakeUpdate=true;
                         siteData.setId(1);
@@ -823,10 +838,10 @@ public class ClosedLoopDictionaryController{
                 }
             } else {
             	siteData = (ClosedLoopSite)mapper.readValue(root.get("closedLoopSiteDictionaryData").toString(), ClosedLoopSite.class);
-            	userId = root.get("userid").textValue();
+            	userId = root.get(userid).textValue();
             }
 			if(siteData.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(siteData.getSiteName(), "siteName", ClosedLoopSite.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(siteData.getSiteName(), siteName, ClosedLoopSite.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -843,26 +858,26 @@ public class ClosedLoopDictionaryController{
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(ClosedLoopSite.class));
             }   
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
-                        responseString = "Success";
+                        responseString = successMsg;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{closedLoopSiteDictionaryDatas: " + responseString + "}");
@@ -871,8 +886,8 @@ public class ClosedLoopDictionaryController{
             }
         }catch (Exception e){
         	LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -880,16 +895,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_site"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeSiteType(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeSiteType(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ClosedLoopSite closedLoopSite = (ClosedLoopSite)mapper.readValue(root.get("data").toString(), ClosedLoopSite.class);
 			commonClassDao.delete(closedLoopSite);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -901,8 +916,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -910,12 +925,12 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/save_varbind"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveVarbind(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveVarbind(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -924,15 +939,14 @@ public class ClosedLoopDictionaryController{
             VarbindDictionary varbindDictionary;
             String userId = null;
             if (fromAPI) {
-                varbindDictionary = (VarbindDictionary)mapper.readValue(root.get("dictionaryFields").toString(), VarbindDictionary.class);
+                varbindDictionary = (VarbindDictionary)mapper.readValue(root.get(dictionaryFields).toString(), VarbindDictionary.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(varbindDictionary.getVarbindName(), "varbindName", VarbindDictionary.class);
-                    int id = 0;
+                if ((update).equals(request.getParameter(operation))) {
+                    List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(varbindDictionary.getVarbindName(), varbindName, VarbindDictionary.class);
                     VarbindDictionary data = (VarbindDictionary) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     if(id==0){
                         isFakeUpdate=true;
                         varbindDictionary.setId(1);
@@ -943,10 +957,10 @@ public class ClosedLoopDictionaryController{
                 }
             } else {
             	varbindDictionary = (VarbindDictionary)mapper.readValue(root.get("varbindDictionaryData").toString(), VarbindDictionary.class);
-            	userId = root.get("userid").textValue();
+            	userId = root.get(userid).textValue();
             }
 			if(varbindDictionary.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(varbindDictionary.getVarbindName(), "varbindName", VarbindDictionary.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(varbindDictionary.getVarbindName(), varbindName, VarbindDictionary.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -963,26 +977,26 @@ public class ClosedLoopDictionaryController{
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(VarbindDictionary.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
-                        responseString = "Success";
+                        responseString = successMsg;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{varbindDictionaryDatas: " + responseString + "}");
@@ -991,8 +1005,8 @@ public class ClosedLoopDictionaryController{
             }
         }catch (Exception e){
         	LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1000,16 +1014,16 @@ public class ClosedLoopDictionaryController{
 	}
 
 	@RequestMapping(value={"/cl_dictionary/remove_varbindDict"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeVarbind(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeVarbind(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			VarbindDictionary varbindDictionary = (VarbindDictionary)mapper.readValue(root.get("data").toString(), VarbindDictionary.class);
 			commonClassDao.delete(varbindDictionary);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1021,8 +1035,8 @@ public class ClosedLoopDictionaryController{
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DecisionPolicyDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DecisionPolicyDictionaryController.java
index 3ae9a465d..aac777a67 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DecisionPolicyDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DecisionPolicyDictionaryController.java
@@ -89,7 +89,7 @@ public class DecisionPolicyDictionaryController {
 
 	
 	@RequestMapping(value={"/get_SettingsDictionaryData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getSettingsDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getSettingsDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DescriptiveDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DescriptiveDictionaryController.java
index b5973d732..40b0b5d62 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DescriptiveDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DescriptiveDictionaryController.java
@@ -86,7 +86,7 @@ public class DescriptiveDictionaryController {
 	}
 	
 	@RequestMapping(value={"/get_DescriptiveScope"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getDescriptiveDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getDescriptiveDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DictionaryController.java
index db6acc82c..1fef35459 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/DictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
@@ -61,17 +60,25 @@ public class DictionaryController {
 	private static final Log LOGGER	= LogFactory.getLog(DictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
-	
+	private static String xacmlId = "xacmlId";
+	private static String apiflag = "apiflag";
+	private static String operation = "operation";
+	private static String dictionaryFields ="dictionaryFields";
+	private static String duplicateResponseString = "Duplicate";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	private static String onapName = "onapName";
 	@Autowired
 	public DictionaryController(CommonClassDao commonClassDao){
 		DictionaryController.commonClassDao = commonClassDao;
 	}
-	
+	/*
+	 * This is an empty constructor
+	 */
 	public DictionaryController(){}
 	
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
 	}
 	
 	
@@ -79,7 +86,7 @@ public class DictionaryController {
 		List<Object> list = commonClassDao.getData(Category.class);
 		for (int i = 0; i < list.size() ; i++) {
 			Category value = (Category) list.get(i);
-			if (value.getShortName().equals("resource")) {
+			if (("resource").equals(value.getShortName())) {
 				return value;
 			}
 		}
@@ -87,12 +94,11 @@ public class DictionaryController {
 	}
 
 	@RequestMapping(value={"/get_AttributeDatabyAttributeName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getAttributeDictionaryEntityDatabyAttributeName(HttpServletRequest request, HttpServletResponse response){
+	public void getAttributeDictionaryEntityDatabyAttributeName(HttpServletResponse response){
 		try{
-			System.out.println();
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("attributeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(Attribute.class, "xacmlId")));
+			model.put("attributeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(Attribute.class, xacmlId)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -104,16 +110,15 @@ public class DictionaryController {
 	
 	//Attribute Dictionary
 	@RequestMapping(value="/get_AttributeData", method= RequestMethod.GET , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getAttributeDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getAttributeDictionaryEntityData(HttpServletResponse response){
 		try{
-			System.out.println();
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("attributeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(Attribute.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
             response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(operation, "getDictionary");
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
@@ -124,12 +129,12 @@ public class DictionaryController {
 	}
 	
 	@RequestMapping(value={"/attribute_dictionary/save_attribute"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -139,17 +144,15 @@ public class DictionaryController {
             AttributeValues attributeValueData = null;
             String userId = null;
             if (fromAPI) {
-                //JsonNode json = root.get("dictionaryFields");
-                attributeData = (Attribute)mapper.readValue(root.get("dictionaryFields").toString(), Attribute.class);
-                attributeValueData = (AttributeValues)mapper.readValue(root.get("dictionaryFields").toString(), AttributeValues.class);
+                attributeData = (Attribute)mapper.readValue(root.get(dictionaryFields).toString(), Attribute.class);
+                attributeValueData = (AttributeValues)mapper.readValue(root.get(dictionaryFields).toString(), AttributeValues.class);
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
-                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(attributeData.getXacmlId(), "xacmlId", Attribute.class);
-                	int id = 0;
+                if (("update").equals(request.getParameter(operation))) {
+                	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(attributeData.getXacmlId(), xacmlId, Attribute.class);
                 	Attribute data = (Attribute) duplicateData.get(0);
-                	id = data.getId();
+                	int id = data.getId();
                 	if(id==0){
                 		isFakeUpdate=true;
                 		attributeData.setId(1);
@@ -165,7 +168,7 @@ public class DictionaryController {
             }
 			String userValue = "";
 			int counter = 0;
-			if(attributeValueData.getUserDataTypeValues().size() > 0){
+			if(!attributeValueData.getUserDataTypeValues().isEmpty()){
 				for(Object attribute : attributeValueData.getUserDataTypeValues()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
 						String key = ((LinkedHashMap<?, ?>) attribute).get("attributeValues").toString();
@@ -181,21 +184,21 @@ public class DictionaryController {
 			if(attributeData.getDatatypeBean().getShortName() != null){
 				String datatype = attributeData.getDatatypeBean().getShortName();
 				Datatype a = new Datatype();
-				if(datatype.equalsIgnoreCase("string")){
+				if(("string").equalsIgnoreCase(datatype)){
 					a.setId(26);	
-				}else if(datatype.equalsIgnoreCase("integer")){
+				}else if(("integer").equalsIgnoreCase(datatype)){
 					a.setId(12);	
-				}else if(datatype.equalsIgnoreCase("boolean")){
+				}else if(("boolean").equalsIgnoreCase(datatype)){
 					a.setId(18);	
-				}else if(datatype.equalsIgnoreCase("double")){
+				}else if(("double").equalsIgnoreCase(datatype)){
 					a.setId(25);	
-				}else if(datatype.equalsIgnoreCase("user")){
+				}else if(("user").equalsIgnoreCase(datatype)){
 					a.setId(29);	
 				}
 				attributeData.setDatatypeBean(a);
 			}
 			if(attributeData.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(attributeData.getXacmlId(), "xacmlId", Attribute.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(attributeData.getXacmlId(), xacmlId, Attribute.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -213,13 +216,13 @@ public class DictionaryController {
 			} 
             String responseString = null;
             if(duplicateflag) {
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             } else {
                 responseString = mapper.writeValueAsString(commonClassDao.getData(Attribute.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate) {
                         responseString = "Exists";
                     } else {
@@ -230,9 +233,9 @@ public class DictionaryController {
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{attributeDictionaryDatas: " + responseString + "}");
@@ -241,8 +244,8 @@ public class DictionaryController {
             }
         }catch (Exception e){
         	LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -250,16 +253,16 @@ public class DictionaryController {
 	}
 
 	@RequestMapping(value={"/attribute_dictionary/remove_attribute"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeAttributeDictionary(HttpServletRequest request, HttpServletResponse response)throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeAttributeDictionary(HttpServletRequest request, HttpServletResponse response)throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			Attribute attributeData = (Attribute)mapper.readValue(root.get("data").toString(), Attribute.class);
 			commonClassDao.delete(attributeData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = mapper.writeValueAsString(commonClassDao.getData(Attribute.class));
@@ -269,8 +272,8 @@ public class DictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -279,12 +282,12 @@ public class DictionaryController {
 	
 	//OnapName Dictionary
 	@RequestMapping(value={"/get_OnapNameDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getOnapNameDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getOnapNameDictionaryByNameEntityData(HttpServletResponse response){
 		LOGGER.info("get_OnapNameDataByName is called");
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("onapNameDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(OnapName.class, "onapName")));
+			model.put("onapNameDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(OnapName.class, onapName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -295,7 +298,7 @@ public class DictionaryController {
 	}
 	
 	@RequestMapping(value={"/get_OnapNameData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getOnapNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getOnapNameDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -303,7 +306,7 @@ public class DictionaryController {
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
             response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(operation, "getDictionary");
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
@@ -314,12 +317,12 @@ public class DictionaryController {
 	}
 
 	@RequestMapping(value={"/onap_dictionary/save_onapName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveOnapDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveOnapDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -328,15 +331,14 @@ public class DictionaryController {
 			OnapName onapData;
 			String userId = null;
 			if (fromAPI) {
-				onapData = (OnapName)mapper.readValue(root.get("dictionaryFields").toString(), OnapName.class);
+				onapData = (OnapName)mapper.readValue(root.get(dictionaryFields).toString(), OnapName.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getOnapName(), "onapName", OnapName.class);
-					int id = 0;
+				if (("update").equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getOnapName(), onapName, OnapName.class);
 					OnapName data = (OnapName) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						onapData.setId(1);
@@ -350,7 +352,7 @@ public class DictionaryController {
 				userId = root.get("userid").textValue();
 			}
 			if(onapData.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getOnapName(), "onapName", OnapName.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getOnapName(), onapName, OnapName.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -367,12 +369,12 @@ public class DictionaryController {
 			} 
 			String responseString = null;
 			if(duplicateflag) {
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			} else {
 				responseString = mapper.writeValueAsString(commonClassDao.getData(OnapName.class));
 			}
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
 						responseString = "Exists";
 					} else {
@@ -384,9 +386,9 @@ public class DictionaryController {
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{onapNameDictionaryDatas: " + responseString + "}");
@@ -395,8 +397,8 @@ public class DictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -404,16 +406,16 @@ public class DictionaryController {
 	}
 
 	@RequestMapping(value={"/onap_dictionary/remove_onap"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeOnapDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeOnapDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			OnapName onapData = (OnapName)mapper.readValue(root.get("data").toString(), OnapName.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -425,8 +427,8 @@ public class DictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -436,13 +438,13 @@ public class DictionaryController {
 }
 
 class AttributeValues{
-	private ArrayList<Object> userDataTypeValues;
+	private List<Object> userDataTypeValues;
 
-	public ArrayList<Object> getUserDataTypeValues() {
+	public List<Object> getUserDataTypeValues() {
 		return userDataTypeValues;
 	}
 
-	public void setUserDataTypeValues(ArrayList<Object> userDataTypeValues) {
+	public void setUserDataTypeValues(List<Object> userDataTypeValues) {
 		this.userDataTypeValues = userDataTypeValues;
 	}
 }
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/EnforcerDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/EnforcerDictionaryController.java
index 6c5d3a9e3..cd4c1a435 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/EnforcerDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/EnforcerDictionaryController.java
@@ -56,7 +56,7 @@ public class EnforcerDictionaryController {
 	CommonClassDao commonClassDao;
 
 	@RequestMapping(value={"/get_EnforcerTypeData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getEnforcerDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getEnforcerDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/FirewallDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/FirewallDictionaryController.java
index d4594c020..86706d154 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/FirewallDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/FirewallDictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Date;
@@ -73,26 +72,53 @@ public class FirewallDictionaryController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(FirewallDictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
+	private static String prefixListName = "prefixListName";
+	private static String successMapKey = "successMapKey";
+	private static String successMessage = "success";
+	private static String operation = "operation";
+	private static String getDictionary =  "getDictionary";
+	private static String errorMsg	= "error";
+	private static String dictionaryDBQuery = "dictionaryDBQuery";
+	private static String apiflag = "apiflag";
+	private static String dictionaryFields ="dictionaryFields";
+	private static String update = "update";
+	private static String duplicateResponseString = "Duplicate";
+	private static String successMsg = "Success";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	private static String existsResponseString = "Exists";
+	private static String protocolName = "protocolName";
+	private static String groupNameStart = "Group_";
+	private static String option = "option";
+	private static String zoneName =  "zoneName";
+	private static String serviceName = "serviceName";
+	private static String termName = "termName";
+	private static String userid = "userid";
+	private static String tagPickerName = "tagPickerName";
+	private static String fwTagPickerDictionaryData = "fwTagPickerDictionaryData";
+	private static String fwTagDictionaryDatas = "fwTagDictionaryDatas";
+	
 	
 	@Autowired
 	public FirewallDictionaryController(CommonClassDao commonClassDao){
 		FirewallDictionaryController.commonClassDao = commonClassDao;
 	}
-	
+	/*
+	 * This is an empty constructor
+	 */
 	public FirewallDictionaryController(){}	
 
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);	
 	}
 
 
 	@RequestMapping(value={"/get_PrefixListDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPrefixListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getPrefixListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("prefixListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(PrefixList.class, "prefixListName")));
+			model.put("prefixListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(PrefixList.class, prefixListName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -103,31 +129,31 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PrefixListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPrefixListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPrefixListDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("prefixListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PrefixList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW, e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_prefixList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -135,14 +161,13 @@ public class FirewallDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
 			PrefixList prefixList;
 			if (fromAPI) {
-				prefixList = (PrefixList)mapper.readValue(root.get("dictionaryFields").toString(), PrefixList.class);
+				prefixList = (PrefixList)mapper.readValue(root.get(dictionaryFields).toString(), PrefixList.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(prefixList.getPrefixListName(), "prefixListName", PrefixList.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(prefixList.getPrefixListName(), prefixListName, PrefixList.class);
 					PrefixList data = (PrefixList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						prefixList.setId(1);
@@ -154,7 +179,7 @@ public class FirewallDictionaryController {
 				prefixList = (PrefixList)mapper.readValue(root.get("prefixListDictionaryData").toString(), PrefixList.class);
 			}
 			if(prefixList.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(prefixList.getPrefixListName(), "prefixListName", PrefixList.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(prefixList.getPrefixListName(), prefixListName, PrefixList.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -167,26 +192,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PrefixList.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{prefixListDictionaryDatas: " + responseString + "}");
@@ -195,8 +220,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW, e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -204,16 +229,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_PrefixList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PrefixList prefixList = (PrefixList)mapper.readValue(root.get("data").toString(), PrefixList.class);
 			commonClassDao.delete(prefixList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = mapper.writeValueAsString(commonClassDao.getData(PrefixList.class));
@@ -223,8 +248,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -232,22 +257,22 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/validate_prefixList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView validatePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView validatePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PrefixList prefixList = (PrefixList)mapper.readValue(root.get("prefixListDictionaryData").toString(), PrefixList.class);
-			String responseValidation = "success";
+			String responseValidation = successMessage;
 			try{
 				CIDR.newCIDR(prefixList.getPrefixListValue());
 			}catch(UnknownHostException e){
 				LOGGER.error(e);
-				responseValidation = "error";
+				responseValidation = errorMsg;
 			}		
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			JSONObject j = new JSONObject("{result: " + responseValidation + "}");
@@ -256,8 +281,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -265,26 +290,26 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PortListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPortListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPortListDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("portListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PortList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_portName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePortListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePortListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			ObjectMapper mapper = new ObjectMapper();
@@ -301,14 +326,14 @@ public class FirewallDictionaryController {
 			}else{
 				commonClassDao.update(portList); 
 			} 
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PortList.class));
 			}
@@ -320,8 +345,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -329,16 +354,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_PortList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePortListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removePortListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PortList portList = (PortList)mapper.readValue(root.get("data").toString(), PortList.class);
 			commonClassDao.delete(portList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = mapper.writeValueAsString(commonClassDao.getData(PortList.class));
@@ -348,8 +373,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -357,30 +382,30 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ProtocolListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getProtocolListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getProtocolListDictionaryEntityData(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("protocolListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(ProtocolList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_ProtocolListDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getProtocolListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getProtocolListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("protocolListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ProtocolList.class, "protocolName")));
+			model.put("protocolListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ProtocolList.class, protocolName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -391,12 +416,12 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_protocolList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveProtocolListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveProtocolListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -404,14 +429,13 @@ public class FirewallDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
 			ProtocolList protocolList;
 			if (fromAPI) {
-				protocolList = (ProtocolList)mapper.readValue(root.get("dictionaryFields").toString(), ProtocolList.class);
+				protocolList = (ProtocolList)mapper.readValue(root.get(dictionaryFields).toString(), ProtocolList.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(protocolList.getProtocolName(), "protocolName", ProtocolList.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(protocolList.getProtocolName(), protocolName, ProtocolList.class);
 					ProtocolList data = (ProtocolList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						protocolList.setId(1);
@@ -423,7 +447,7 @@ public class FirewallDictionaryController {
 				protocolList = (ProtocolList)mapper.readValue(root.get("protocolListDictionaryData").toString(), ProtocolList.class);
 			}
 			if(protocolList.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(protocolList.getProtocolName(), "protocolName", ProtocolList.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(protocolList.getProtocolName(), protocolName, ProtocolList.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -436,26 +460,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(ProtocolList.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{protocolListDictionaryDatas: " + responseString + "}");
@@ -464,8 +488,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -473,16 +497,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_protocol"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeProtocolListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeProtocolListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ProtocolList protocolList = (ProtocolList)mapper.readValue(root.get("data").toString(), ProtocolList.class);
 			commonClassDao.delete(protocolList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -493,8 +517,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -502,7 +526,7 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_AddressGroupDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getAddressGroupDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getAddressGroupDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -517,31 +541,31 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_AddressGroupData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getAddressGroupDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getAddressGroupDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("addressGroupDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(AddressGroup.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_addressGroup"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -550,20 +574,19 @@ public class FirewallDictionaryController {
 			AddressGroup addressGroup;
 			GridData gridData;
 			if (fromAPI) {
-				addressGroup = (AddressGroup)mapper.readValue(root.get("dictionaryFields").toString(), AddressGroup.class);
-				gridData = (GridData)mapper.readValue(root.get("dictionaryFields").toString(), GridData.class);
+				addressGroup = (AddressGroup)mapper.readValue(root.get(dictionaryFields).toString(), AddressGroup.class);
+				gridData = (GridData)mapper.readValue(root.get(dictionaryFields).toString(), GridData.class);
 
-				if(!addressGroup.getGroupName().startsWith("Group_")){
-					String groupName = "Group_"+addressGroup.getGroupName();
+				if(!addressGroup.getGroupName().startsWith(groupNameStart)){
+					String groupName = groupNameStart+addressGroup.getGroupName();
 					addressGroup.setGroupName(groupName);
 				}
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(addressGroup.getGroupName(), "name", AddressGroup.class);
-					int id = 0;
 					AddressGroup data = (AddressGroup) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						addressGroup.setId(1);
@@ -574,17 +597,17 @@ public class FirewallDictionaryController {
 			} else {
 				addressGroup = (AddressGroup)mapper.readValue(root.get("addressGroupDictionaryData").toString(), AddressGroup.class);
 				gridData = (GridData)mapper.readValue(root.get("addressGroupDictionaryData").toString(), GridData.class);
-				if(!addressGroup.getGroupName().startsWith("Group_")){
-					String groupName = "Group_"+addressGroup.getGroupName();
+				if(!addressGroup.getGroupName().startsWith(groupNameStart)){
+					String groupName = groupNameStart+addressGroup.getGroupName();
 					addressGroup.setGroupName(groupName);
 				}
 			}
 			String userValue = "";
 			int counter = 0;
-			if(gridData.getAttributes().size() > 0){
+			if(!gridData.getAttributes().isEmpty()){
 				for(Object attribute : gridData.getAttributes()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(counter>0){
 							userValue = userValue + ",";
 						}
@@ -608,25 +631,25 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(AddressGroup.class));
 			}
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{addressGroupDictionaryDatas: " + responseString + "}");
@@ -635,8 +658,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -644,16 +667,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_AddressGroup"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			AddressGroup addressGroup = (AddressGroup)mapper.readValue(root.get("data").toString(), AddressGroup.class);
 			commonClassDao.delete(addressGroup);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -664,8 +687,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -673,7 +696,7 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ActionListDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getActionListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getActionListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -694,31 +717,31 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ActionListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getActionListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getActionListDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("actionListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(ActionList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_ActionList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveActionListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveActionListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -726,14 +749,13 @@ public class FirewallDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
 			ActionList actionList;
 			if (fromAPI) {
-				actionList = (ActionList)mapper.readValue(root.get("dictionaryFields").toString(), ActionList.class);
+				actionList = (ActionList)mapper.readValue(root.get(dictionaryFields).toString(), ActionList.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(actionList.getActionName(), "actionName", ActionList.class);
-					int id = 0;
 					ActionList data = (ActionList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						actionList.setId(1);
@@ -758,26 +780,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(ActionList.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{actionListDictionaryDatas: " + responseString + "}");
@@ -786,8 +808,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -795,16 +817,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_ActionList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeActionListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeActionListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ActionList actionList = (ActionList)mapper.readValue(root.get("data").toString(), ActionList.class);
 			commonClassDao.delete(actionList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = mapper.writeValueAsString(commonClassDao.getData(ActionList.class));
@@ -814,8 +836,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -823,26 +845,26 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ServiceGroupData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getServiceGroupDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getServiceGroupDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("serviceGroupDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(GroupServiceList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_ServiceGroupDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getServiceGroupDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getServiceGroupDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -857,12 +879,12 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_serviceGroup"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -871,19 +893,18 @@ public class FirewallDictionaryController {
 			GroupServiceList groupServiceList;
 			GridData gridData;
 			if (fromAPI) {
-				groupServiceList = (GroupServiceList)mapper.readValue(root.get("dictionaryFields").toString(), GroupServiceList.class);
-				gridData = (GridData)mapper.readValue(root.get("dictionaryFields").toString(), GridData.class);
+				groupServiceList = (GroupServiceList)mapper.readValue(root.get(dictionaryFields).toString(), GroupServiceList.class);
+				gridData = (GridData)mapper.readValue(root.get(dictionaryFields).toString(), GridData.class);
 
-				if(!groupServiceList.getGroupName().startsWith("Group_")){
-					String groupName = "Group_"+groupServiceList.getGroupName();
+				if(!groupServiceList.getGroupName().startsWith(groupNameStart)){
+					String groupName = groupNameStart+groupServiceList.getGroupName();
 					groupServiceList.setGroupName(groupName);
 				}
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(groupServiceList.getGroupName(), "name", GroupServiceList.class);
-					int id = 0;
 					GroupServiceList data = (GroupServiceList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 
 					if(id==0){
 						isFakeUpdate=true;
@@ -896,16 +917,16 @@ public class FirewallDictionaryController {
 				groupServiceList = (GroupServiceList)mapper.readValue(root.get("serviceGroupDictionaryData").toString(), GroupServiceList.class);
 				gridData = (GridData)mapper.readValue(root.get("serviceGroupDictionaryData").toString(), GridData.class);
 			}
-			if(!groupServiceList.getGroupName().startsWith("Group_")){
-				String groupName = "Group_"+groupServiceList.getGroupName();
+			if(!groupServiceList.getGroupName().startsWith(groupNameStart)){
+				String groupName = groupNameStart+groupServiceList.getGroupName();
 				groupServiceList.setGroupName(groupName);
 			}
 			String userValue = "";
 			int counter = 0;
-			if(gridData.getAttributes().size() > 0){
+			if(!gridData.getAttributes().isEmpty()){
 				for(Object attribute : gridData.getAttributes()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(counter>0){
 							userValue = userValue + ",";
 						}
@@ -929,26 +950,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(GroupServiceList.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{serviceGroupDictionaryDatas: " + responseString + "}");
@@ -957,8 +978,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -966,16 +987,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_serviceGroup"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			GroupServiceList groupServiceList = (GroupServiceList)mapper.readValue(root.get("data").toString(), GroupServiceList.class);
 			commonClassDao.delete(groupServiceList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -986,9 +1007,9 @@ public class FirewallDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -996,11 +1017,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_SecurityZoneDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getSecurityZoneDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getSecurityZoneDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("securityZoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(SecurityZone.class, "zoneName")));
+			model.put("securityZoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(SecurityZone.class, zoneName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -1011,31 +1032,31 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_SecurityZoneData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getSecurityZoneDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getSecurityZoneDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("securityZoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(SecurityZone.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_securityZone"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -1043,14 +1064,13 @@ public class FirewallDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
 			SecurityZone securityZone;
 			if (fromAPI) {
-				securityZone = (SecurityZone)mapper.readValue(root.get("dictionaryFields").toString(), SecurityZone.class);
+				securityZone = (SecurityZone)mapper.readValue(root.get(dictionaryFields).toString(), SecurityZone.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(securityZone.getZoneName(), "zoneName", SecurityZone.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(securityZone.getZoneName(), zoneName, SecurityZone.class);
 					SecurityZone data = (SecurityZone) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						securityZone.setId(1);
@@ -1062,7 +1082,7 @@ public class FirewallDictionaryController {
 				securityZone = (SecurityZone)mapper.readValue(root.get("securityZoneDictionaryData").toString(), SecurityZone.class);
 			}
 			if(securityZone.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(securityZone.getZoneName(), "zoneName", SecurityZone.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(securityZone.getZoneName(), zoneName, SecurityZone.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -1075,26 +1095,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(SecurityZone.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}   
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{securityZoneDictionaryDatas: " + responseString + "}");
@@ -1104,8 +1124,8 @@ public class FirewallDictionaryController {
 
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1113,16 +1133,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_securityZone"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			SecurityZone securityZone = (SecurityZone)mapper.readValue(root.get("data").toString(), SecurityZone.class);
 			commonClassDao.delete(securityZone);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1134,8 +1154,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1144,30 +1164,30 @@ public class FirewallDictionaryController {
 
 
 	@RequestMapping(value={"/get_ServiceListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getServiceListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getServiceListDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("serviceListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(ServiceList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/get_ServiceListDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getServiceListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getServiceListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("serviceListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ServiceList.class, "serviceName")));
+			model.put("serviceListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(ServiceList.class, serviceName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -1178,12 +1198,12 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_serviceList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveServiceListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveServiceListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -1192,15 +1212,14 @@ public class FirewallDictionaryController {
 			ServiceList serviceList;
 			GridData serviceListGridData;
 			if (fromAPI) {
-				serviceList = (ServiceList)mapper.readValue(root.get("dictionaryFields").toString(), ServiceList.class);
-				serviceListGridData = (GridData)mapper.readValue(root.get("dictionaryFields").toString(), GridData.class);
+				serviceList = (ServiceList)mapper.readValue(root.get(dictionaryFields).toString(), ServiceList.class);
+				serviceListGridData = (GridData)mapper.readValue(root.get(dictionaryFields).toString(), GridData.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceList.getServiceName(), "serviceName", ServiceList.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceList.getServiceName(), serviceName, ServiceList.class);
 					ServiceList data = (ServiceList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						serviceList.setId(1);
@@ -1214,10 +1233,10 @@ public class FirewallDictionaryController {
 			}
 			String tcpValue = "";
 			int counter = 0;
-			if(serviceListGridData.getTransportProtocols().size() > 0){
+			if(!serviceListGridData.getTransportProtocols().isEmpty()){
 				for(Object attribute : serviceListGridData.getTransportProtocols()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(counter>0){
 							tcpValue = tcpValue + ",";
 						}
@@ -1229,10 +1248,10 @@ public class FirewallDictionaryController {
 			serviceList.setServiceTransProtocol(tcpValue);
 			String appValue = "";
 			int counter1 = 0;
-			if(serviceListGridData.getAppProtocols().size() > 0){
+			if(!serviceListGridData.getAppProtocols().isEmpty()){
 				for(Object attribute : serviceListGridData.getAppProtocols()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(counter1>0){
 							appValue = appValue + ",";
 						}
@@ -1244,7 +1263,7 @@ public class FirewallDictionaryController {
 			serviceList.setServiceAppProtocol(appValue);
 			serviceList.setServiceType("SERVICE");
 			if(serviceList.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceList.getServiceName(), "serviceName", ServiceList.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(serviceList.getServiceName(), serviceName, ServiceList.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -1258,25 +1277,25 @@ public class FirewallDictionaryController {
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(ServiceList.class));
 			} 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{serviceListDictionaryDatas: " + responseString + "}");
@@ -1285,8 +1304,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1295,16 +1314,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_serviceList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeServiceListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeServiceListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			ServiceList serviceList = (ServiceList)mapper.readValue(root.get("data").toString(), ServiceList.class);
 			commonClassDao.delete(serviceList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1315,9 +1334,9 @@ public class FirewallDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1325,15 +1344,15 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ZoneData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getZoneDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getZoneDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("zoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(Zone.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
@@ -1342,11 +1361,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_ZoneDictionaryDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getZoneDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getZoneDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("zoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(Zone.class, "zoneName")));
+			model.put("zoneDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(Zone.class, zoneName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -1357,12 +1376,12 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_zoneName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -1370,14 +1389,13 @@ public class FirewallDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
 			Zone zone;
 			if (fromAPI) {
-				zone = (Zone)mapper.readValue(root.get("dictionaryFields").toString(), Zone.class);
+				zone = (Zone)mapper.readValue(root.get(dictionaryFields).toString(), Zone.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData = commonClassDao.checkDuplicateEntry(zone.getZoneName(), "zoneName", Zone.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData = commonClassDao.checkDuplicateEntry(zone.getZoneName(), zoneName, Zone.class);
 					Zone data = (Zone) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						zone.setId(1);
@@ -1389,7 +1407,7 @@ public class FirewallDictionaryController {
 				zone = (Zone)mapper.readValue(root.get("zoneDictionaryData").toString(), Zone.class);
 			}
 			if(zone.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(zone.getZoneName(), "zoneName", Zone.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(zone.getZoneName(), zoneName, Zone.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -1402,26 +1420,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(Zone.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{zoneDictionaryDatas: " + responseString + "}");
@@ -1430,8 +1448,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1439,16 +1457,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_zone"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			Zone zone = (Zone)mapper.readValue(root.get("data").toString(), Zone.class);
 			commonClassDao.delete(zone);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1460,8 +1478,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1469,11 +1487,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_TermListDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTermListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getTermListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("termListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(TermList.class, "termName")));
+			model.put("termListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(TermList.class, termName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -1484,31 +1502,31 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_TermListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTermListDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getTermListDictionaryEntityData(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("termListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(TermList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_termList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveTermListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveTermListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -1518,16 +1536,15 @@ public class FirewallDictionaryController {
 			TermListData termListDatas;
 			String userId = null;
 			if (fromAPI) {
-				termList = (TermList)mapper.readValue(root.get("dictionaryFields").toString(), TermList.class);
-				termListDatas = (TermListData)mapper.readValue(root.get("dictionaryFields").toString(), TermListData.class);
+				termList = (TermList)mapper.readValue(root.get(dictionaryFields).toString(), TermList.class);
+				termListDatas = (TermListData)mapper.readValue(root.get(dictionaryFields).toString(), TermListData.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(termList.getTermName(), "termName", TermList.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(termList.getTermName(), termName, TermList.class);
 					TermList data = (TermList) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					if(id==0){
 						isFakeUpdate=true;
 						termList.setId(1);
@@ -1539,14 +1556,14 @@ public class FirewallDictionaryController {
 			} else {
 				termList = (TermList)mapper.readValue(root.get("termListDictionaryData").toString(), TermList.class);
 				termListDatas = (TermListData)mapper.readValue(root.get("termListDictionaryData").toString(), TermListData.class);
-				userId = root.get("userid").textValue();
+				userId = root.get(userid).textValue();
 			}
 			String fromZoneValue = "";
 			int counter = 0;
-			if(termListDatas.getFromZoneDatas().size() > 0){
+			if(!termListDatas.getFromZoneDatas().isEmpty()){
 				for(Object fromZone : termListDatas.getFromZoneDatas()){
 					if(fromZone instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) fromZone).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) fromZone).get(option).toString();
 						if(counter>0){
 							fromZoneValue = fromZoneValue + ",";
 						}
@@ -1559,10 +1576,10 @@ public class FirewallDictionaryController {
 
 			String toZoneValue = "";
 			int toZonecounter = 0;
-			if(termListDatas.getToZoneDatas().size() > 0){
+			if(!termListDatas.getToZoneDatas().isEmpty()){
 				for(Object toZone : termListDatas.getToZoneDatas()){
 					if(toZone instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) toZone).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) toZone).get(option).toString();
 						if(toZonecounter>0){
 							toZoneValue = toZoneValue + ",";
 						}
@@ -1575,10 +1592,10 @@ public class FirewallDictionaryController {
 
 			String srcListValues = "";
 			int srcListcounter = 0;
-			if(termListDatas.getSourceListDatas().size() > 0){
+			if(!termListDatas.getSourceListDatas().isEmpty()){
 				for(Object srcList : termListDatas.getSourceListDatas()){
 					if(srcList instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) srcList).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) srcList).get(option).toString();
 						if(srcListcounter>0){
 							srcListValues = srcListValues + ",";
 						}
@@ -1591,10 +1608,10 @@ public class FirewallDictionaryController {
 
 			String desListValues = "";
 			int destListcounter = 0;
-			if(termListDatas.getDestinationListDatas().size() > 0){
+			if(!termListDatas.getDestinationListDatas().isEmpty()){
 				for(Object desList : termListDatas.getDestinationListDatas()){
 					if(desList instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) desList).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) desList).get(option).toString();
 						if(destListcounter>0){
 							desListValues = desListValues + ",";
 						}
@@ -1607,10 +1624,10 @@ public class FirewallDictionaryController {
 
 			String srcSerValue = "";
 			int srcSercounter = 0;
-			if(termListDatas.getSourceServiceDatas().size() > 0){
+			if(!termListDatas.getSourceServiceDatas().isEmpty()){
 				for(Object srcSrc : termListDatas.getSourceServiceDatas()){
 					if(srcSrc instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) srcSrc).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) srcSrc).get(option).toString();
 						if(srcSercounter>0){
 							srcSerValue = srcSerValue + ",";
 						}
@@ -1623,10 +1640,10 @@ public class FirewallDictionaryController {
 
 			String desSrcValue = "";
 			int desSrccounter = 0;
-			if(termListDatas.getDestinationServiceDatas().size() > 0){
+			if(!termListDatas.getDestinationServiceDatas().isEmpty()){
 				for(Object desSrc : termListDatas.getDestinationServiceDatas()){
 					if(desSrc instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) desSrc).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) desSrc).get(option).toString();
 						if(desSrccounter>0){
 							desSrcValue = desSrcValue + ",";
 						}
@@ -1639,10 +1656,10 @@ public class FirewallDictionaryController {
 
 			String actionValue = "";
 			int actioncounter = 0;
-			if(termListDatas.getActionListDatas().size() > 0){
+			if(!termListDatas.getActionListDatas().isEmpty()){
 				for(Object actionList : termListDatas.getActionListDatas()){
 					if(actionList instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) actionList).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) actionList).get(option).toString();
 						if(actioncounter>0){
 							actionValue = actionValue + ",";
 						}
@@ -1654,7 +1671,7 @@ public class FirewallDictionaryController {
 			termList.setAction(actionValue);
 
 			if(termList.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(termList.getTermName(), "termName", TermList.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(termList.getTermName(), termName, TermList.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -1670,26 +1687,26 @@ public class FirewallDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(TermList.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{termListDictionaryDatas: " + responseString + "}");
@@ -1698,8 +1715,8 @@ public class FirewallDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1707,16 +1724,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_termList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeTermListDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeTermListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			TermList termList = (TermList)mapper.readValue(root.get("data").toString(), TermList.class);
 			commonClassDao.delete(termList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1728,8 +1745,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1737,7 +1754,7 @@ public class FirewallDictionaryController {
 	}
 	//ParentList Dictionary Data
 	@RequestMapping(value={"/get_FWDictionaryListDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getFWDictListDictionaryEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getFWDictListDictionaryEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -1752,26 +1769,26 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_FWDictionaryListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getFWDictionaryListEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getFWDictionaryListEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("fwDictListDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(FirewallDictionaryList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 		}
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_FWDictionaryList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveFWDictionaryList(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveFWDictionaryList(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			ObjectMapper mapper = new ObjectMapper();
@@ -1781,10 +1798,10 @@ public class FirewallDictionaryController {
 			GridData gridData = (GridData)mapper.readValue(root.get("fwDictListDictionaryData").toString(), GridData.class);
 			String userSLValue = "";
 			int slcounter = 0;
-			if(gridData.getAttributes().size() > 0){
+			if(!gridData.getAttributes().isEmpty()){
 				for(Object attribute : gridData.getAttributes()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(slcounter>0){
 							userSLValue = userSLValue + ",";
 						}
@@ -1796,10 +1813,10 @@ public class FirewallDictionaryController {
 			fwDictList.setServiceList(userSLValue);
 			String userALValue = "";
 			int alcounter = 0;
-			if(gridData.getAlAttributes().size() > 0){
+			if(!gridData.getAlAttributes().isEmpty()){
 				for(Object attribute : gridData.getAlAttributes()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						if(alcounter>0){
 							userALValue = userALValue + ",";
 						}
@@ -1819,14 +1836,14 @@ public class FirewallDictionaryController {
 			}else{
 				commonClassDao.update(fwDictList); 
 			} 
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(FirewallDictionaryList.class));
 			}
@@ -1838,8 +1855,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1847,16 +1864,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_FWDictionaryList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeFWDictionaryListy(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeFWDictionaryListy(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			FirewallDictionaryList fwDictList = (FirewallDictionaryList)mapper.readValue(root.get("data").toString(), FirewallDictionaryList.class);
 			commonClassDao.delete(fwDictList);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -1868,8 +1885,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -1878,11 +1895,11 @@ public class FirewallDictionaryController {
 
 
 	@RequestMapping(value={"/get_TagPickerNameByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTagPickerNameEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getTagPickerNameEntityDataByName(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("fwTagPickerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(FWTagPicker.class, "tagPickerName")));
+			model.put("fwTagPickerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(FWTagPicker.class, tagPickerName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -1893,9 +1910,9 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_TagPickerListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTagPickerDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getTagPickerDictionaryEntityData(HttpServletResponse response){
 		try{
-			Map<String, Object> model = new HashMap<String, Object>();
+			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("fwTagPickerDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(FWTagPicker.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
@@ -1908,11 +1925,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_fwTagPicker"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveFirewallTagPickerDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveFirewallTagPickerDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 
@@ -1925,32 +1942,31 @@ public class FirewallDictionaryController {
 			TagGridValues data;
 			String userId = null;
 			if (fromAPI) {
-				fwTagPicker = (FWTagPicker)mapper.readValue(root.get("fwTagPickerDictionaryData").toString(), FWTagPicker.class);
-				data = (TagGridValues)mapper.readValue(root.get("fwTagPickerDictionaryData").toString(), TagGridValues.class);
+				fwTagPicker = (FWTagPicker)mapper.readValue(root.get(fwTagPickerDictionaryData).toString(), FWTagPicker.class);
+				data = (TagGridValues)mapper.readValue(root.get(fwTagPickerDictionaryData).toString(), TagGridValues.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
-					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(fwTagPicker.getTagPickerName(), "tagPickerName", FWTagPicker.class);
-					int id = 0;
+				if ((update).equals(request.getParameter(operation))) {
+					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(fwTagPicker.getTagPickerName(), tagPickerName, FWTagPicker.class);
 					FWTagPicker dbdata = (FWTagPicker) duplicateData.get(0);
-					id = dbdata.getId();
+					int id = dbdata.getId();
 					fwTagPicker.setId(id);
 					fwTagPicker.setUserCreatedBy(this.getUserInfo(userId));
 				}
 			} else {
 
-				fwTagPicker = (FWTagPicker)mapper.readValue(root.get("fwTagPickerDictionaryData").toString(), FWTagPicker.class);
-				data = (TagGridValues)mapper.readValue(root.get("fwTagPickerDictionaryData").toString(), TagGridValues.class);
-				userId = root.get("userid").textValue();
+				fwTagPicker = (FWTagPicker)mapper.readValue(root.get(fwTagPickerDictionaryData).toString(), FWTagPicker.class);
+				data = (TagGridValues)mapper.readValue(root.get(fwTagPickerDictionaryData).toString(), TagGridValues.class);
+				userId = root.get(userid).textValue();
 			}
 
 			String header = "";
 			int counter = 0;
-			if(data.getTags().size() > 0){
+			if(!data.getTags().isEmpty()){
 				for(Object attribute : data.getTags()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
-						String key = ((LinkedHashMap<?, ?>) attribute).get("option").toString();
+						String key = ((LinkedHashMap<?, ?>) attribute).get(option).toString();
 						String value = ((LinkedHashMap<?, ?>) attribute).get("number").toString();
 						if(counter>0){
 							header = header + "#";
@@ -1963,7 +1979,7 @@ public class FirewallDictionaryController {
 			}
 			fwTagPicker.setTagValues(header);
 			if(fwTagPicker.getId() == 0){
-				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(fwTagPicker.getTagPickerName(), "tagPickerName", FWTagPicker.class);
+				List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(fwTagPicker.getTagPickerName(), tagPickerName, FWTagPicker.class);
 				if(!duplicateData.isEmpty()){
 					duplicateflag = true;
 				}else{
@@ -1979,22 +1995,22 @@ public class FirewallDictionaryController {
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString =  mapper.writeValueAsString(commonClassDao.getData(FWTagPicker.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
-					responseString = "Success";
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
+					responseString = successMsg;
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{fwTagPickerDictionaryDatas: " + responseString + "}");
@@ -2004,8 +2020,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -2013,16 +2029,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_tagPicker"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeFirewallTagPickerDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeFirewallTagPickerDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			FWTagPicker fwTagPicker = (FWTagPicker)mapper.readValue(root.get("data").toString(), FWTagPicker.class);
 			commonClassDao.delete(fwTagPicker);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 			String responseString = mapper.writeValueAsString(commonClassDao.getData(FWTagPicker.class));
@@ -2032,8 +2048,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -2042,11 +2058,11 @@ public class FirewallDictionaryController {
 
 
 	@RequestMapping(value={"/get_TagNameByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTagNameEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getTagNameEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("fwTagDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(FWTag.class, "fwTagName")));
+			model.put(fwTagDictionaryDatas, mapper.writeValueAsString(commonClassDao.getDataByColumn(FWTag.class, "fwTagName")));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -2057,11 +2073,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_TagListData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getTagDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getTagDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("fwTagDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(FWTag.class)));
+			model.put(fwTagDictionaryDatas, mapper.writeValueAsString(commonClassDao.getData(FWTag.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -2072,11 +2088,11 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/save_fwTag"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveFirewallTagDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveFirewallTagDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 
@@ -2089,16 +2105,15 @@ public class FirewallDictionaryController {
 			TagGridValues tagGridValues;
 			String userId = null;
 			if (fromAPI) {
-				fwTag = (FWTag)mapper.readValue(root.get("fwTagDictionaryDatas").toString(), FWTag.class);
-				tagGridValues = (TagGridValues)mapper.readValue(root.get("fwTagDictionaryDatas").toString(), TagGridValues.class);
+				fwTag = (FWTag)mapper.readValue(root.get(fwTagDictionaryDatas).toString(), FWTag.class);
+				tagGridValues = (TagGridValues)mapper.readValue(root.get(fwTagDictionaryDatas).toString(), TagGridValues.class);
 				userId = "API";
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(fwTag.getFwTagName(), "tagName", FWTag.class);
-					int id = 0;
 					FWTag data = (FWTag) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 					fwTag.setId(id);
 					fwTag.setUserCreatedBy(this.getUserInfo(userId));
 
@@ -2106,12 +2121,12 @@ public class FirewallDictionaryController {
 			} else {
 				fwTag = (FWTag)mapper.readValue(root.get("fwTagDictionaryData").toString(), FWTag.class);
 				tagGridValues = (TagGridValues)mapper.readValue(root.get("fwTagDictionaryData").toString(), TagGridValues.class);
-				userId = root.get("userid").textValue();
+				userId = root.get(userid).textValue();
 			}
 
 			String userValue = "";
 			int counter = 0;
-			if(tagGridValues.getTags().size() > 0){
+			if(!tagGridValues.getTags().isEmpty()){
 				for(Object attribute : tagGridValues.getTags()){
 					if(attribute instanceof LinkedHashMap<?, ?>){
 						String key = ((LinkedHashMap<?, ?>) attribute).get("tags").toString();
@@ -2141,22 +2156,22 @@ public class FirewallDictionaryController {
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString =  mapper.writeValueAsString(commonClassDao.getData(FWTag.class));
 			}
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
-					responseString = "Success";
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
+					responseString = successMsg;
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
 
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{fwTagDictionaryDatas: " + responseString + "}");
@@ -2166,8 +2181,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -2175,16 +2190,16 @@ public class FirewallDictionaryController {
 	}
 
 	@RequestMapping(value={"/fw_dictionary/remove_tagList"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeFirewallTagDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removeFirewallTagDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			FWTag fwTag = (FWTag)mapper.readValue(root.get("data").toString(), FWTag.class);
 			commonClassDao.delete(fwTag);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -2196,8 +2211,8 @@ public class FirewallDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -2206,77 +2221,77 @@ public class FirewallDictionaryController {
 }
 
 class TagGridValues{
-	private ArrayList<Object> tags;
+	private List<Object> tags;
 
-	public ArrayList<Object> getTags() {
+	public List<Object> getTags() {
 		return tags;
 	}
 
-	public void setTags(ArrayList<Object> tags) {
+	public void setTags(List<Object> tags) {
 		this.tags = tags;
 	}
 }
 
 class AGGridData{
-	private ArrayList<Object> attributes;
+	private List<Object> attributes;
 
-	public ArrayList<Object> getAttributes() {
+	public List<Object> getAttributes() {
 		return attributes;
 	}
 
-	public void setAttributes(ArrayList<Object> attributes) {
+	public void setAttributes(List<Object> attributes) {
 		this.attributes = attributes;
 	}
 }
 
 class TermListData{
-	private ArrayList<Object> fromZoneDatas;
-	private ArrayList<Object> toZoneDatas;
-	private ArrayList<Object> sourceListDatas;
-	private ArrayList<Object> destinationListDatas;
-	private ArrayList<Object> sourceServiceDatas;
-	private ArrayList<Object> destinationServiceDatas;
-	private ArrayList<Object> actionListDatas;
-	public ArrayList<Object> getFromZoneDatas() {
+	private List<Object> fromZoneDatas;
+	private List<Object> toZoneDatas;
+	private List<Object> sourceListDatas;
+	private List<Object> destinationListDatas;
+	private List<Object> sourceServiceDatas;
+	private List<Object> destinationServiceDatas;
+	private List<Object> actionListDatas;
+	public List<Object> getFromZoneDatas() {
 		return fromZoneDatas;
 	}
-	public void setFromZoneDatas(ArrayList<Object> fromZoneDatas) {
+	public void setFromZoneDatas(List<Object> fromZoneDatas) {
 		this.fromZoneDatas = fromZoneDatas;
 	}
-	public ArrayList<Object> getToZoneDatas() {
+	public List<Object> getToZoneDatas() {
 		return toZoneDatas;
 	}
-	public void setToZoneDatas(ArrayList<Object> toZoneDatas) {
+	public void setToZoneDatas(List<Object> toZoneDatas) {
 		this.toZoneDatas = toZoneDatas;
 	}
-	public ArrayList<Object> getSourceListDatas() {
+	public List<Object> getSourceListDatas() {
 		return sourceListDatas;
 	}
-	public void setSourceListDatas(ArrayList<Object> sourceListDatas) {
+	public void setSourceListDatas(List<Object> sourceListDatas) {
 		this.sourceListDatas = sourceListDatas;
 	}
-	public ArrayList<Object> getDestinationListDatas() {
+	public List<Object> getDestinationListDatas() {
 		return destinationListDatas;
 	}
-	public void setDestinationListDatas(ArrayList<Object> destinationListDatas) {
+	public void setDestinationListDatas(List<Object> destinationListDatas) {
 		this.destinationListDatas = destinationListDatas;
 	}
-	public ArrayList<Object> getSourceServiceDatas() {
+	public List<Object> getSourceServiceDatas() {
 		return sourceServiceDatas;
 	}
-	public void setSourceServiceDatas(ArrayList<Object> sourceServiceDatas) {
+	public void setSourceServiceDatas(List<Object> sourceServiceDatas) {
 		this.sourceServiceDatas = sourceServiceDatas;
 	}
-	public ArrayList<Object> getDestinationServiceDatas() {
+	public List<Object> getDestinationServiceDatas() {
 		return destinationServiceDatas;
 	}
-	public void setDestinationServiceDatas(ArrayList<Object> destinationServiceDatas) {
+	public void setDestinationServiceDatas(List<Object> destinationServiceDatas) {
 		this.destinationServiceDatas = destinationServiceDatas;
 	}
-	public ArrayList<Object> getActionListDatas() {
+	public List<Object> getActionListDatas() {
 		return actionListDatas;
 	}
-	public void setActionListDatas(ArrayList<Object> actionListDatas) {
+	public void setActionListDatas(List<Object> actionListDatas) {
 		this.actionListDatas = actionListDatas;
 	}
 }
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/MicroServiceDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/MicroServiceDictionaryController.java
index 526e28649..0170a71e0 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/MicroServiceDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/MicroServiceDictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -64,40 +63,52 @@ public class MicroServiceDictionaryController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(MicroServiceDictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
-
-	public static void setCommonClassDao(CommonClassDao commonClassDao) {
-		MicroServiceDictionaryController.commonClassDao = commonClassDao;
-	}
-
+	
+    private static String successMapKey= "successMapKey";
+    private static String successMsg = "success";
+    private static String operation = "operation";
+    private static String getDictionary = "getDictionary";
+    private static String errorMsg = "error";
+    private static String dictionaryDBQuery = "dictionaryDBQuery";
+    private HashMap<String,MSAttributeObject > classMap;
+    private List<String> modelList = new ArrayList<>();
+    private static String apiflag = "apiflag";
+	private static String dictionaryFields ="dictionaryFields";
+	private static String update = "update";
+	private static String duplicateResponseString = "Duplicate";
+	private static String successMessage = "Success";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	private static String existsResponseString = "Exists";
+	private static String microServiceModelsDictionaryDatas = "microServiceModelsDictionaryDatas";
+	private static String modelName = "modelName";
+	private static String microServiceModelsDictionaryData = "microServiceModelsDictionaryData";
+	private static String description = "description";
+	private static String version = "version";
+	private static String classMapData = "classMap";
+	/*
+	 * This is an empty constructor
+	 */
+    public MicroServiceDictionaryController(){}	
+	
 	@Autowired
 	public MicroServiceDictionaryController(CommonClassDao commonClassDao){
 		MicroServiceDictionaryController.commonClassDao = commonClassDao;
 	}
-	
-	public MicroServiceDictionaryController(){}	
+	public static void setCommonClassDao(CommonClassDao commonClassDao) {
+		MicroServiceDictionaryController.commonClassDao = commonClassDao;
+	}
 	
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
 	}
-	
-    private static String SUCCESSKEY= "successMapKey";
-    private static String SUCCESS = "success";
-    private static String OPERATION = "operation";
-    private static String GETDICTIONARY = "getDictionary";
-    private static String ERROR = "error";
-    private static String DICTIONARYDBQUERY = "dictionaryDBQuery";
-    private HashMap<String,MSAttributeObject > classMap;
-    private List<String> modelList = new ArrayList<>();
-    
-	
 
 	MSModelUtils utils = new MSModelUtils(XACMLPapServlet.getMsOnapName(), XACMLPapServlet.getMsPolicyName());
 	private MicroServiceModels newModel;
 	
 	
 	@RequestMapping(value={"/get_DCAEUUIDDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getDCAEUUIDDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getDCAEUUIDDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -112,31 +123,31 @@ public class MicroServiceDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_DCAEUUIDData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getDCAEUUIDDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getDCAEUUIDDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("dcaeUUIDDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(DCAEuuid.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
 		}
 	}
 	
 	@RequestMapping(value={"/ms_dictionary/save_dcaeUUID"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -144,14 +155,13 @@ public class MicroServiceDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
             DCAEuuid dCAEuuid;
             if (fromAPI) {
-                dCAEuuid = (DCAEuuid)mapper.readValue(root.get("dictionaryFields").toString(), DCAEuuid.class);
+                dCAEuuid = (DCAEuuid)mapper.readValue(root.get(dictionaryFields).toString(), DCAEuuid.class);
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter(OPERATION).equals("update")) {
+                if ((update).equals(request.getParameter(operation))) {
                 	List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(dCAEuuid.getName(), "name", DCAEuuid.class);
-                	int id = 0;
                 	DCAEuuid data = (DCAEuuid) duplicateData.get(0);
-                	id = data.getId();
+                	int id = data.getId();
                 	if(id==0){
                 		isFakeUpdate=true;
                 		dCAEuuid.setId(1);
@@ -176,26 +186,26 @@ public class MicroServiceDictionaryController {
 			} 
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(DCAEuuid.class));
             } 
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
-                        responseString = "Exists";
+                        responseString = existsResponseString;
                     } else {
-                        responseString = "Success";
+                        responseString = successMessage;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{dcaeUUIDDictionaryDatas: " + responseString + "}");
@@ -203,8 +213,8 @@ public class MicroServiceDictionaryController {
                 return null;
             }
         }catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -213,16 +223,16 @@ public class MicroServiceDictionaryController {
 	}
 
 	@RequestMapping(value={"/ms_dictionary/remove_dcaeuuid"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			DCAEuuid dCAEuuid = (DCAEuuid)mapper.readValue(root.get("data").toString(), DCAEuuid.class);
 			commonClassDao.delete(dCAEuuid);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -234,8 +244,8 @@ public class MicroServiceDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -244,7 +254,7 @@ public class MicroServiceDictionaryController {
 	
 	
 	@RequestMapping(value={"/get_MicroServiceConfigNameDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceConfigNameByNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceConfigNameByNameDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -261,31 +271,31 @@ public class MicroServiceDictionaryController {
 	
 	
 	@RequestMapping(value={"/get_MicroServiceConfigNameData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceConfigNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceConfigNameDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("microServiceCongigNameDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(MicroServiceConfigName.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
 		}
 	}
 	
 	@RequestMapping(value={"/ms_dictionary/save_configName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -293,14 +303,13 @@ public class MicroServiceDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
             MicroServiceConfigName microServiceConfigName;
             if (fromAPI) {
-                microServiceConfigName = (MicroServiceConfigName)mapper.readValue(root.get("dictionaryFields").toString(), MicroServiceConfigName.class);
+                microServiceConfigName = (MicroServiceConfigName)mapper.readValue(root.get(dictionaryFields).toString(), MicroServiceConfigName.class);
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter(OPERATION).equals("update")) {
+                if ((update).equals(request.getParameter(operation))) {
                     List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(microServiceConfigName.getName(), "name", MicroServiceConfigName.class);
-                    int id = 0;
                     MicroServiceConfigName data = (MicroServiceConfigName) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                 
                     if(id==0){
                         isFakeUpdate=true;
@@ -326,26 +335,26 @@ public class MicroServiceDictionaryController {
 			} 
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(MicroServiceConfigName.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
-                        responseString = "Exists";
+                        responseString = existsResponseString;
                     } else {
-                        responseString = "Success";
+                        responseString = successMessage;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{microServiceCongigNameDictionaryDatas: " + responseString + "}");
@@ -353,8 +362,8 @@ public class MicroServiceDictionaryController {
                 return null;
             }
         }catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -363,16 +372,16 @@ public class MicroServiceDictionaryController {
 	}
 
 	@RequestMapping(value={"/ms_dictionary/remove_msConfigName"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			MicroServiceConfigName microServiceConfigName = (MicroServiceConfigName)mapper.readValue(root.get("data").toString(), MicroServiceConfigName.class);
 			commonClassDao.delete(microServiceConfigName);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -384,8 +393,8 @@ public class MicroServiceDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -393,7 +402,7 @@ public class MicroServiceDictionaryController {
 	}
 	
 	@RequestMapping(value={"/get_MicroServiceLocationDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceLocationByNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceLocationByNameDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -408,31 +417,31 @@ public class MicroServiceDictionaryController {
 	}
 	
 	@RequestMapping(value={"/get_MicroServiceLocationData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceLocationDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceLocationDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("microServiceLocationDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(MicroServiceLocation.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
 		}
 	}
 	
 	@RequestMapping(value={"/ms_dictionary/save_location"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response)throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response)throws IOException{
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -440,14 +449,13 @@ public class MicroServiceDictionaryController {
 			JsonNode root = mapper.readTree(request.getReader());
             MicroServiceLocation microServiceLocation;
             if (fromAPI) {
-                microServiceLocation = (MicroServiceLocation)mapper.readValue(root.get("dictionaryFields").toString(), MicroServiceLocation.class);
+                microServiceLocation = (MicroServiceLocation)mapper.readValue(root.get(dictionaryFields).toString(), MicroServiceLocation.class);
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter(OPERATION).equals("update")) {
+                if ((update).equals(request.getParameter(operation))) {
                     List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(microServiceLocation.getName(), "name", MicroServiceLocation.class);
-                    int id = 0;
                     MicroServiceLocation data = (MicroServiceLocation) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                   
                     if(id==0){
                         isFakeUpdate=true;
@@ -473,26 +481,26 @@ public class MicroServiceDictionaryController {
 			} 
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(MicroServiceLocation.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
                     if(isFakeUpdate){
-                        responseString = "Exists";
+                        responseString = existsResponseString;
                     } else {
-                        responseString = "Success";
+                        responseString = successMessage;
                     }
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{microServiceLocationDictionaryDatas: " + responseString + "}");
@@ -500,8 +508,8 @@ public class MicroServiceDictionaryController {
                 return null;
             }
 		}catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -510,16 +518,16 @@ public class MicroServiceDictionaryController {
 	}
 
 	@RequestMapping(value={"/ms_dictionary/remove_msLocation"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			MicroServiceLocation microServiceLocation = (MicroServiceLocation)mapper.readValue(root.get("data").toString(), MicroServiceLocation.class);
 			commonClassDao.delete(microServiceLocation);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -531,8 +539,8 @@ public class MicroServiceDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -540,7 +548,7 @@ public class MicroServiceDictionaryController {
 	}
 	
     @RequestMapping(value={"/get_MicroServiceAttributeDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getMicroServiceAttributeByNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getMicroServiceAttributeByNameDictionaryEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
@@ -555,31 +563,31 @@ public class MicroServiceDictionaryController {
     }
     
     @RequestMapping(value={"/get_MicroServiceAttributeData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getMicroServiceAttributeDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getMicroServiceAttributeDictionaryEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
             model.put("microServiceAttributeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(MicroServiceAttribute.class)));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
             response.getWriter().write(j.toString());
  
         }
         catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
         }
     }
     
     @RequestMapping(value={"/ms_dictionary/save_modelAttribute"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView saveMicroServiceAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+    public ModelAndView saveMicroServiceAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
         try {
             boolean duplicateflag = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
             
@@ -589,10 +597,10 @@ public class MicroServiceDictionaryController {
             
             MicroServiceAttribute microServiceAttribute;
             if (fromAPI) {
-                microServiceAttribute = (MicroServiceAttribute)mapper.readValue(root.get("dictionaryFields").toString(), MicroServiceAttribute.class);
+                microServiceAttribute = (MicroServiceAttribute)mapper.readValue(root.get(dictionaryFields).toString(), MicroServiceAttribute.class);
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter(OPERATION).equals("update")) {
+                if ((update).equals(request.getParameter(operation))) {
                     MicroServiceAttribute initialAttribute = (MicroServiceAttribute)mapper.readValue(root.get("initialFields").toString(), MicroServiceAttribute.class);
  
                     String checkValue = initialAttribute.getName() + ":" + initialAttribute.getValue() + ":" + initialAttribute.getModelName();
@@ -622,22 +630,22 @@ public class MicroServiceDictionaryController {
  
             String responseString = "";
             if(duplicateflag){
-                responseString = "Duplicate";
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(MicroServiceAttribute.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals("Duplicate")) {
-                    responseString = "Success";
+                if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
+                    responseString = successMessage;
                 }
                 ModelAndView result = new ModelAndView();
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{microServiceAttributeDictionaryDatas: " + responseString + "}");
@@ -646,8 +654,8 @@ public class MicroServiceDictionaryController {
             }
         }
         catch (Exception e){
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
             LOGGER.error(e);
@@ -656,16 +664,16 @@ public class MicroServiceDictionaryController {
     }
  
     @RequestMapping(value={"/ms_dictionary/remove_modelAttribute"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-    public ModelAndView removeMicroServiceAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+    public ModelAndView removeMicroServiceAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
         try{
             ObjectMapper mapper = new ObjectMapper();
             mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
             JsonNode root = mapper.readTree(request.getReader());
             MicroServiceAttribute microServiceAttribute = (MicroServiceAttribute)mapper.readValue(root.get("data").toString(), MicroServiceAttribute.class);
             commonClassDao.delete(microServiceAttribute);
-            response.setCharacterEncoding("UTF-8");
-            response.setContentType("application / json");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            response.setContentType(applicationJsonContentType);
+            request.setCharacterEncoding(utf8);
  
             PrintWriter out = response.getWriter();
  
@@ -677,8 +685,8 @@ public class MicroServiceDictionaryController {
         }
         catch (Exception e){
             LOGGER.error(e);
-            response.setCharacterEncoding("UTF-8");
-            request.setCharacterEncoding("UTF-8");
+            response.setCharacterEncoding(utf8);
+            request.setCharacterEncoding(utf8);
             PrintWriter out = response.getWriter();
             out.write(e.getMessage());
         }
@@ -687,11 +695,11 @@ public class MicroServiceDictionaryController {
  
 	
 	@RequestMapping(value={"/get_MicroServiceModelsDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceModelsDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceModelsDictionaryByNameEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("microServiceModelsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataByColumn(MicroServiceModels.class, "modelName")));
+			model.put(microServiceModelsDictionaryDatas, mapper.writeValueAsString(commonClassDao.getDataByColumn(MicroServiceModels.class, modelName)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
 			response.getWriter().write(j.toString());
@@ -708,13 +716,13 @@ public class MicroServiceDictionaryController {
             ObjectMapper mapper = new ObjectMapper();
             JsonNode root = mapper.readTree(request.getReader());
             String modelName = null;
-            if (root.get("microServiceModelsDictionaryData").has("modelName")){
-                modelName = root.get("microServiceModelsDictionaryData").get("modelName").asText().replace("\"", "");
+            if (root.get(microServiceModelsDictionaryData).has(modelName)){
+                modelName = root.get(microServiceModelsDictionaryData).get(modelName).asText().replace("\"", "");
             }
              if (modelName!=null){
-                    model.put("microServiceModelsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getDataById(MicroServiceModels.class, "modelName", modelName)));
+                    model.put(microServiceModelsDictionaryDatas, mapper.writeValueAsString(commonClassDao.getDataById(MicroServiceModels.class, modelName, modelName)));
              } else{
-                 model.put(ERROR, "No model name given");
+                 model.put(errorMsg, "No model name given");
              }
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
@@ -726,26 +734,26 @@ public class MicroServiceDictionaryController {
     }
     
 	@RequestMapping(value={"/get_MicroServiceModelsData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getMicroServiceModelsDictionaryEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getMicroServiceModelsDictionaryEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
-			model.put("microServiceModelsDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(MicroServiceModels.class)));
+			model.put(microServiceModelsDictionaryDatas, mapper.writeValueAsString(commonClassDao.getData(MicroServiceModels.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
 		}
 	}
 	
     @RequestMapping(value={"/get_MicroServiceModelsDataServiceVersion"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getMicroServiceModelsDictionaryEntityDataServiceVersion(HttpServletRequest request, HttpServletResponse response){
+    public void getMicroServiceModelsDictionaryEntityDataServiceVersion(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
@@ -757,7 +765,7 @@ public class MicroServiceDictionaryController {
                 	data.add(msmodel.getModelName() + "-v" + msmodel.getVersion());
                 }
             }
-            model.put("microServiceModelsDictionaryDatas", mapper.writeValueAsString(data));
+            model.put(microServiceModelsDictionaryDatas, mapper.writeValueAsString(data));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
             response.addHeader("successMapKey", "success"); 
@@ -773,32 +781,32 @@ public class MicroServiceDictionaryController {
     }
     
     @RequestMapping(value={"/get_MicroServiceModelsDataByClass"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-    public void getMicroServiceModelsDictionaryClassEntityData(HttpServletRequest request, HttpServletResponse response){
+    public void getMicroServiceModelsDictionaryClassEntityData(HttpServletResponse response){
         try{
             Map<String, Object> model = new HashMap<>();
             ObjectMapper mapper = new ObjectMapper();
             model.put("microServiceModelsDictionaryClassDatas", mapper.writeValueAsString(modelList));
             JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
             JSONObject j = new JSONObject(msg);
-            response.addHeader(SUCCESSKEY, SUCCESS);    
-            response.addHeader(OPERATION, GETDICTIONARY);
+            response.addHeader(successMapKey, successMsg);    
+            response.addHeader(operation, getDictionary);
             response.getWriter().write(j.toString());
  
         }
         catch (Exception e){
             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-            response.addHeader(ERROR, DICTIONARYDBQUERY);
+            response.addHeader(errorMsg, dictionaryDBQuery);
             LOGGER.error(e);
         }
     }
     
 	@RequestMapping(value={"/ms_dictionary/save_model"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView saveMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView saveMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean fromAPI = false;
 			this.newModel = new MicroServiceModels();
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -811,23 +819,22 @@ public class MicroServiceDictionaryController {
 				JsonNode dataType = root.get("modelType");
 				String modelType= dataType.toString();
 				if(modelType.contains("yml")){
-					if (root.has("microServiceModelsDictionaryData")){
-						if (root.get("microServiceModelsDictionaryData").has("description")){
-							microServiceModels.setDescription(root.get("microServiceModelsDictionaryData").get("description").asText().replace("\"", ""));
+					if (root.has(microServiceModelsDictionaryData)){
+						if (root.get(microServiceModelsDictionaryData).has(description)){
+							microServiceModels.setDescription(root.get(microServiceModelsDictionaryData).get(description).asText().replace("\"", ""));
 						}
-						if (root.get("microServiceModelsDictionaryData").has("modelName")){
-							microServiceModels.setModelName(root.get("microServiceModelsDictionaryData").get("modelName").asText().replace("\"", ""));
+						if (root.get(microServiceModelsDictionaryData).has(modelName)){
+							microServiceModels.setModelName(root.get(microServiceModelsDictionaryData).get(modelName).asText().replace("\"", ""));
 							this.newModel.setModelName(microServiceModels.getModelName());
 						}
-						if (root.get("microServiceModelsDictionaryData").has("version")){
-							microServiceModels.setVersion(root.get("microServiceModelsDictionaryData").get("version").asText().replace("\"", ""));
+						if (root.get(microServiceModelsDictionaryData).has(version)){
+							microServiceModels.setVersion(root.get(microServiceModelsDictionaryData).get(version).asText().replace("\"", ""));
 							this.newModel.setVersion(microServiceModels.getVersion());
 						}
 					}
 
-					MSAttributeObject mainClass  = null;
 					classMap = new HashMap<>();
-					JsonNode data = root.get("classMap");
+					JsonNode data = root.get(classMapData);
 					ObjectMapper mapper1 = new ObjectMapper();
 					String data1 = data.toString().substring(1, data.toString().length()-1);
 					data1 = data1.replace("\\", "");
@@ -842,7 +849,7 @@ public class MicroServiceDictionaryController {
 					}
 
 					userId = root.get("userid").textValue();
-					mainClass = classMap.get(this.newModel.getModelName());
+					MSAttributeObject mainClass = classMap.get(this.newModel.getModelName());
 					this.newModel.setDependency("[]");
 					String value = new Gson().toJson(mainClass.getSubClass());
 					this.newModel.setSub_attributes(value);
@@ -859,11 +866,11 @@ public class MicroServiceDictionaryController {
 
 				}else{
 					if (fromAPI) {
-						microServiceModels = (MicroServiceModels)mapper.readValue(root.get("dictionaryFields").toString(), MicroServiceModels.class);
+						microServiceModels = (MicroServiceModels)mapper.readValue(root.get(dictionaryFields).toString(), MicroServiceModels.class);
 						userId = "API";
 
 						//check if update operation or create, get id for data to be updated and update attributeData
-						if (request.getParameter(OPERATION).equals("update")) {
+						if ((update).equals(request.getParameter(operation))) {
 							String checkName = microServiceModels.getModelName() + ":" + microServiceModels.getVersion();
 							List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(checkName, "modelName:version", MicroServiceModels.class);
 							int id = 0;
@@ -876,22 +883,22 @@ public class MicroServiceDictionaryController {
 
 						}
 					} else {
-						if (root.has("microServiceModelsDictionaryData")){
-							if (root.get("microServiceModelsDictionaryData").has("description")){
-								microServiceModels.setDescription(root.get("microServiceModelsDictionaryData").get("description").asText().replace("\"", ""));
+						if (root.has(microServiceModelsDictionaryData)){
+							if (root.get(microServiceModelsDictionaryData).has(description)){
+								microServiceModels.setDescription(root.get(microServiceModelsDictionaryData).get(description).asText().replace("\"", ""));
 							}
-							if (root.get("microServiceModelsDictionaryData").has("modelName")){
-								microServiceModels.setModelName(root.get("microServiceModelsDictionaryData").get("modelName").asText().replace("\"", ""));
+							if (root.get(microServiceModelsDictionaryData).has(modelName)){
+								microServiceModels.setModelName(root.get(microServiceModelsDictionaryData).get(modelName).asText().replace("\"", ""));
 								this.newModel.setModelName(microServiceModels.getModelName());
 							}
-							if (root.get("microServiceModelsDictionaryData").has("version")){
-								microServiceModels.setVersion(root.get("microServiceModelsDictionaryData").get("version").asText().replace("\"", ""));
+							if (root.get(microServiceModelsDictionaryData).has(version)){
+								microServiceModels.setVersion(root.get(microServiceModelsDictionaryData).get(version).asText().replace("\"", ""));
 								this.newModel.setVersion(microServiceModels.getVersion());
 							}
 						}
-						if(root.has("classMap")){
+						if(root.has(classMapData)){
 							classMap = new HashMap<>();
-							JsonNode data = root.get("classMap");
+							JsonNode data = root.get(classMapData);
 							ObjectMapper mapper1 = new ObjectMapper();
 							String data1 = data.toString().substring(1, data.toString().length()-1);
 							data1 = data1.replace("\\", "");
@@ -932,22 +939,22 @@ public class MicroServiceDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(MicroServiceModels.class));
 			} 
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
-					responseString = "Success";
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
+					responseString = successMessage;
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{microServiceModelsDictionaryDatas: " + responseString + "}");
@@ -955,8 +962,8 @@ public class MicroServiceDictionaryController {
 				return null;
 			}
 		}catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -965,16 +972,16 @@ public class MicroServiceDictionaryController {
 	}
 
 	@RequestMapping(value={"/ms_dictionary/remove_msModel"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removeMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removeMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			MicroServiceModels microServiceModels = (MicroServiceModels)mapper.readValue(root.get("data").toString(), MicroServiceModels.class);
 			commonClassDao.delete(microServiceModels);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -986,8 +993,8 @@ public class MicroServiceDictionaryController {
 		}
 		catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -995,17 +1002,14 @@ public class MicroServiceDictionaryController {
 	}
 		
 	private void addValuesToNewModel(HashMap<String,MSAttributeObject > classMap) {
-		new MicroServiceModels();
 		//Loop  through the classmap and pull out the required info for the new file.
-		MSAttributeObject mainClass  = null;
-		ArrayList<String> dependency = null;
 		String subAttribute = null;
 		
-		mainClass = classMap.get(this.newModel.getModelName());
+		MSAttributeObject mainClass = classMap.get(this.newModel.getModelName());
 		
 		if (mainClass !=null){
 			String dependTemp = StringUtils.replaceEach(mainClass.getDependency(), new String[]{"[", "]", " "}, new String[]{"", "", ""});
-			dependency = new ArrayList<String>(Arrays.asList(dependTemp.split(",")));	
+			ArrayList<String> dependency = new ArrayList<>(Arrays.asList(dependTemp.split(",")));	
 			dependency = getFullDependencyList(dependency);
 			for (String element : dependency){
 				MSAttributeObject temp = new MSAttributeObject();
@@ -1042,7 +1046,7 @@ public class MicroServiceDictionaryController {
 			if (classMap.containsKey(element)){
 				MSAttributeObject value = classMap.get(element);			
 				String rawValue = StringUtils.replaceEach(value.getDependency(), new String[]{"[", "]"}, new String[]{"", ""});
-				workingList = new ArrayList<String>(Arrays.asList(rawValue.split(",")));	
+				workingList = new ArrayList<>(Arrays.asList(rawValue.split(",")));	
 				for(String depend : workingList){
 					if (!returnList.contains(depend) && !depend.isEmpty()){
 						returnList.add(depend.trim());
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PolicyScopeDictionaryController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PolicyScopeDictionaryController.java
index 44ab4a3f6..2715d581b 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PolicyScopeDictionaryController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PolicyScopeDictionaryController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -59,23 +58,39 @@ public class PolicyScopeDictionaryController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(PolicyScopeDictionaryController.class);
 
 	private static CommonClassDao commonClassDao;
-	
+	private static String successMapKey = "successMapKey";
+	private static String exceptionOccured = "Exception Occured";
+	private static String successMessage = "success";
+	private static String operation = "operation";
+	private static String getDictionary =  "getDictionary";
+	private static String errorMsg	= "error";
+	private static String dictionaryDBQuery = "dictionaryDBQuery";
+	private static String apiflag = "apiflag";
+	private static String groupPolicyScopeListData1 = "groupPolicyScopeListData1";
+	private static String policyScope= "PolicyScope";
+	private static String update = "update";
+	private static String duplicateResponseString = "Duplicate";
+	private static String successMsg = "Success";
+	private static String existsResponseString = "Exists";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+	/*
+	 * This is an empty constructor
+	 */
+	public PolicyScopeDictionaryController(){}	
+
 	@Autowired
 	public PolicyScopeDictionaryController(CommonClassDao commonClassDao){
 		PolicyScopeDictionaryController.commonClassDao = commonClassDao;
 	}
 	
-	public PolicyScopeDictionaryController(){}	
-
-	private static String SUCCESSMAPKEY = "successMapKey";
-
+	
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);	
 	}
 
 	@RequestMapping(value={"/get_GroupPolicyScopeDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getGroupPolicyScopeEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getGroupPolicyScopeEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -85,50 +100,49 @@ public class PolicyScopeDictionaryController {
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
-			LOGGER.error("Exception Occured"+e);
+			LOGGER.error(exceptionOccured+e);
 		}
 	}
 
 	@RequestMapping(value={"/get_GroupPolicyScopeData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getGroupPolicyScopeEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getGroupPolicyScopeEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("groupPolicyScopeListDatas", mapper.writeValueAsString(commonClassDao.getData(GroupPolicyScopeList.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader(SUCCESSMAPKEY, "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 			LOGGER.error(e);
 		}
 	}
 
 	@RequestMapping(value={"/ps_dictionary/save_psGroupPolicyScope"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean duplicateGroupFlag = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
-			//GroupPolicyScopeList gpdata = (GroupPolicyScopeList)mapper.readValue(root.get("groupPolicyScopeListData").toString(), GroupPolicyScopeList.class);
 			GroupPolicyScopeList gpdata = null;
 			GroupPolicyScope groupData = null;
 			if (fromAPI) {
 				gpdata = (GroupPolicyScopeList)mapper.readValue(root.get("dictionaryFields").toString(), GroupPolicyScopeList.class);
 				try{
-					groupData = (GroupPolicyScope)mapper.readValue(root.get("groupPolicyScopeListData1").toString(), GroupPolicyScope.class);
+					groupData = (GroupPolicyScope)mapper.readValue(root.get(groupPolicyScopeListData1).toString(), GroupPolicyScope.class);
 				}catch(Exception e){
 					groupData = new GroupPolicyScope();
 					groupData.setResource(root.get("dictionaryFields").get("resource").toString().replace("\"", ""));
@@ -138,13 +152,13 @@ public class PolicyScopeDictionaryController {
 					LOGGER.error(e);
 				}
 
-				if(!gpdata.getGroupName().startsWith("PolicyScope")){
+				if(!gpdata.getGroupName().startsWith(policyScope)){
 					String name = "PolicyScope_" + gpdata.getGroupName();
 					gpdata.setGroupName(name);
 				}
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(gpdata.getGroupName(), "name", GroupPolicyScopeList.class);
 					int id = 0;
@@ -165,23 +179,22 @@ public class PolicyScopeDictionaryController {
 				gpdata = (GroupPolicyScopeList)mapper.readValue(root.get("groupPolicyScopeListData").toString(), GroupPolicyScopeList.class);
 
 				try{
-					groupData = (GroupPolicyScope)mapper.readValue(root.get("groupPolicyScopeListData1").toString(), GroupPolicyScope.class);
+					groupData = (GroupPolicyScope)mapper.readValue(root.get(groupPolicyScopeListData1).toString(), GroupPolicyScope.class);
 				}catch(Exception e){
 					LOGGER.error(e);
 					groupData = new GroupPolicyScope();
-					groupData.setResource(root.get("groupPolicyScopeListData1").get("resource").toString().replace("\"", ""));
-					groupData.setClosedloop(root.get("groupPolicyScopeListData1").get("closedloop").toString().replace("\"", ""));
-					groupData.setService(root.get("groupPolicyScopeListData1").get("service").toString().replace("\"", ""));
-					groupData.setType(root.get("groupPolicyScopeListData1").get("type").toString().replace("\"", ""));
+					groupData.setResource(root.get(groupPolicyScopeListData1).get("resource").toString().replace("\"", ""));
+					groupData.setClosedloop(root.get(groupPolicyScopeListData1).get("closedloop").toString().replace("\"", ""));
+					groupData.setService(root.get(groupPolicyScopeListData1).get("service").toString().replace("\"", ""));
+					groupData.setType(root.get(groupPolicyScopeListData1).get("type").toString().replace("\"", ""));
 				}
-				if(!gpdata.getGroupName().startsWith("PolicyScope")){
+				if(!gpdata.getGroupName().startsWith(policyScope)){
 					String name = "PolicyScope_" + gpdata.getGroupName();
 					gpdata.setGroupName(name);
 				}
 
 			}
 			ArrayList<String> valueList = new ArrayList<>();
-			String list = null;
 			String resourceValue = groupData.getResource();
 			String typeValue = groupData.getType();
 			String serviceValue = groupData.getService();
@@ -190,9 +203,9 @@ public class PolicyScopeDictionaryController {
 			valueList.add("service=" + serviceValue);
 			valueList.add("type=" + typeValue);
 			valueList.add("closedLoopControlName="  + closedLoopValue);
-			list = StringUtils.replaceEach(valueList.toString(), new String[]{"[", "]", " "}, new String[]{"", "", ""});
+			String list = StringUtils.replaceEach(valueList.toString(), new String[]{"[", "]", " "}, new String[]{"", "", ""});
 			gpdata.setGroupList(list);
-			if(!gpdata.getGroupName().startsWith("PolicyScope")){
+			if(!gpdata.getGroupName().startsWith(policyScope)){
 				String name = "PolicyScope_" + gpdata.getGroupName();
 				gpdata.setGroupName(name);
 			}
@@ -220,7 +233,7 @@ public class PolicyScopeDictionaryController {
 			}
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else if(duplicateGroupFlag){
 				responseString = "DuplicateGroup";
 			}else{
@@ -228,11 +241,11 @@ public class PolicyScopeDictionaryController {
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate") && !responseString.equals("DuplicateGroup")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString) && !("DuplicateGroup").equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 
@@ -241,9 +254,9 @@ public class PolicyScopeDictionaryController {
 				return result;
 			} else {
 
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{groupPolicyScopeListDatas: " + responseString + "}");
@@ -252,26 +265,25 @@ public class PolicyScopeDictionaryController {
 			}
 		}catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
-			
 		}
 		return null;
 	}
 
 	@RequestMapping(value={"/ps_dictionary/remove_GroupPolicyScope"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removePSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			GroupPolicyScopeList onapData = (GroupPolicyScopeList)mapper.readValue(root.get("data").toString(), GroupPolicyScopeList.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -282,9 +294,9 @@ public class PolicyScopeDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -292,7 +304,7 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PSClosedLoopDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSClosedLoopEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getPSClosedLoopEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -302,36 +314,36 @@ public class PolicyScopeDictionaryController {
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
-			LOGGER.error("Exception Occured"+e);
+			LOGGER.error(exceptionOccured+e);
 		}
 	}
 
 	@RequestMapping(value={"/get_PSClosedLoopData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSClosedLoopEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPSClosedLoopEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("psClosedLoopDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PolicyScopeClosedLoop.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader(SUCCESSMAPKEY, "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 			LOGGER.error(e);
 		}
 	}
 
 	@RequestMapping(value={"/ps_dictionary/save_psClosedLoop"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -342,7 +354,7 @@ public class PolicyScopeDictionaryController {
 				onapData = (PolicyScopeClosedLoop)mapper.readValue(root.get("dictionaryFields").toString(), PolicyScopeClosedLoop.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getName(), "name", PolicyScopeClosedLoop.class);
 					int id = 0;
 					for (int i =0; i< duplicateData.size(); i++){
@@ -375,26 +387,26 @@ public class PolicyScopeDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PolicyScopeClosedLoop.class));
 			}
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
 				result.setViewName(responseString);
 				return result;
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{psClosedLoopDictionaryDatas: " + responseString + "}");
@@ -405,8 +417,8 @@ public class PolicyScopeDictionaryController {
 			}
 
 		}catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -415,16 +427,16 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/ps_dictionary/remove_PSClosedLoop"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removePSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PolicyScopeClosedLoop onapData = (PolicyScopeClosedLoop)mapper.readValue(root.get("data").toString(), PolicyScopeClosedLoop.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -435,9 +447,9 @@ public class PolicyScopeDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -445,7 +457,7 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PSServiceDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSServiceEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getPSServiceEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -455,36 +467,36 @@ public class PolicyScopeDictionaryController {
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
-			LOGGER.error("Exception Occured"+e);
+			LOGGER.error(exceptionOccured+e);
 		}
 	}
 
 	@RequestMapping(value={"/get_PSServiceData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSServiceEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPSServiceEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("psServiceDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PolicyScopeService.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader(SUCCESSMAPKEY, "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 			LOGGER.error(e);
 		}
 	}
 
 	@RequestMapping(value={"/ps_dictionary/save_psService"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePSServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePSServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -495,7 +507,7 @@ public class PolicyScopeDictionaryController {
 				onapData = (PolicyScopeService)mapper.readValue(root.get("dictionaryFields").toString(), PolicyScopeService.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getName(), "name", PolicyScopeService.class);
 					int id = 0;
 					for (int i =0; i< duplicateData.size(); i++){
@@ -527,17 +539,17 @@ public class PolicyScopeDictionaryController {
 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PolicyScopeService.class));
 			}   
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 				}
 				ModelAndView result = new ModelAndView();
@@ -545,9 +557,9 @@ public class PolicyScopeDictionaryController {
 				return result;
 
 			} else {
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{psServiceDictionaryDatas: " + responseString + "}");
@@ -555,8 +567,8 @@ public class PolicyScopeDictionaryController {
 				return null;
 			}
 		}catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -565,16 +577,16 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/ps_dictionary/remove_PSService"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePSServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView removePSServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PolicyScopeService onapData = (PolicyScopeService)mapper.readValue(root.get("data").toString(), PolicyScopeService.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -585,9 +597,9 @@ public class PolicyScopeDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -595,7 +607,7 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PSTypeDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSTypeEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getPSTypeEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -605,36 +617,36 @@ public class PolicyScopeDictionaryController {
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
-			LOGGER.error("Exception Occured"+e);
+			LOGGER.error(exceptionOccured+e);
 		}
 	}
 
 	@RequestMapping(value={"/get_PSTypeData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSTypeEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPSTypeEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("psTypeDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PolicyScopeType.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader(SUCCESSMAPKEY, "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader(successMapKey, successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
+			response.addHeader(errorMsg, dictionaryDBQuery);
 			LOGGER.error(e);
 		}
 	}
 
 	@RequestMapping(value={"/ps_dictionary/save_psType"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePSTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePSTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -645,7 +657,7 @@ public class PolicyScopeDictionaryController {
 				onapData = (PolicyScopeType)mapper.readValue(root.get("dictionaryFields").toString(), PolicyScopeType.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getName(), "name", PolicyScopeType.class);
 					int id = 0;
 					for (int i =0; i< duplicateData.size(); i++){
@@ -678,17 +690,17 @@ public class PolicyScopeDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PolicyScopeType.class));
 			} 
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 
 				}
@@ -698,9 +710,9 @@ public class PolicyScopeDictionaryController {
 
 			} else {
 
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{psTypeDictionaryDatas: " + responseString + "}");
@@ -711,8 +723,8 @@ public class PolicyScopeDictionaryController {
 			}
 
 		}catch (Exception e){
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 			LOGGER.error(e);
@@ -721,16 +733,16 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/ps_dictionary/remove_PSType"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePSTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removePSTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PolicyScopeType onapData = (PolicyScopeType)mapper.readValue(root.get("data").toString(), PolicyScopeType.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -741,9 +753,9 @@ public class PolicyScopeDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -751,7 +763,7 @@ public class PolicyScopeDictionaryController {
 	}
 
 	@RequestMapping(value={"/get_PSResourceDataByName"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSResourceEntityDataByName(HttpServletRequest request, HttpServletResponse response){
+	public void getPSResourceEntityDataByName(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -761,37 +773,37 @@ public class PolicyScopeDictionaryController {
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
-			LOGGER.error("Exception Occured"+e);
+			LOGGER.error(exceptionOccured+e);
 		}
 	}
 
 	@RequestMapping(value={"/get_PSResourceData"}, method={org.springframework.web.bind.annotation.RequestMethod.GET} , produces=MediaType.APPLICATION_JSON_VALUE)
-	public void getPSResourceEntityData(HttpServletRequest request, HttpServletResponse response){
+	public void getPSResourceEntityData(HttpServletResponse response){
 		try{
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
 			model.put("psResourceDictionaryDatas", mapper.writeValueAsString(commonClassDao.getData(PolicyScopeResource.class)));
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
-			response.addHeader("successMapKey", "success"); 
-			response.addHeader("operation", "getDictionary");
+			response.addHeader("successMapKey", successMessage); 
+			response.addHeader(operation, getDictionary);
 			response.getWriter().write(j.toString());
 		}
 		catch (Exception e){
 			LOGGER.error(e);
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);                             
-			response.addHeader("error", "dictionaryDBQuery");
-			
+			response.addHeader(errorMsg, dictionaryDBQuery);
+			LOGGER.error(e);
 		}
 	}
 
 	@RequestMapping(value={"/ps_dictionary/save_psResource"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView savePSResourceDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException{
+	public ModelAndView savePSResourceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		try {
 			boolean duplicateflag = false;
 			boolean isFakeUpdate = false;
 			boolean fromAPI = false;
-			if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+			if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
 				fromAPI = true;
 			}
 			ObjectMapper mapper = new ObjectMapper();
@@ -802,11 +814,10 @@ public class PolicyScopeDictionaryController {
 				onapData = (PolicyScopeResource)mapper.readValue(root.get("dictionaryFields").toString(), PolicyScopeResource.class);
 
 				//check if update operation or create, get id for data to be updated and update attributeData
-				if (request.getParameter("operation").equals("update")) {
+				if ((update).equals(request.getParameter(operation))) {
 					List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(onapData.getName(), "name", PolicyScopeResource.class);
-					int id = 0;
 					PolicyScopeResource data = (PolicyScopeResource) duplicateData.get(0);
-					id = data.getId();
+					int id = data.getId();
 
 					if(id==0){
 						isFakeUpdate=true;
@@ -832,17 +843,17 @@ public class PolicyScopeDictionaryController {
 			} 
 			String responseString = "";
 			if(duplicateflag){
-				responseString = "Duplicate";
+				responseString = duplicateResponseString;
 			}else{
 				responseString = mapper.writeValueAsString(commonClassDao.getData(PolicyScopeResource.class));
 			}   
 
 			if (fromAPI) {
-				if (responseString!=null && !responseString.equals("Duplicate")) {
+				if (responseString!=null && !(duplicateResponseString).equals(responseString)) {
 					if(isFakeUpdate){
-						responseString = "Exists";
+						responseString = existsResponseString;
 					} else {
-						responseString = "Success";
+						responseString = successMsg;
 					}
 
 				}
@@ -852,9 +863,9 @@ public class PolicyScopeDictionaryController {
 
 			} else {
 
-				response.setCharacterEncoding("UTF-8");
-				response.setContentType("application / json");
-				request.setCharacterEncoding("UTF-8");
+				response.setCharacterEncoding(utf8);
+				response.setContentType(applicationJsonContentType);
+				request.setCharacterEncoding(utf8);
 
 				PrintWriter out = response.getWriter();
 				JSONObject j = new JSONObject("{psResourceDictionaryDatas: " + responseString + "}");
@@ -866,26 +877,25 @@ public class PolicyScopeDictionaryController {
 
 		}catch (Exception e){
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
-			
 		}
 		return null;
 	}
 
 	@RequestMapping(value={"/ps_dictionary/remove_PSResource"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-	public ModelAndView removePSResourceDictionary(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException, IOException {
+	public ModelAndView removePSResourceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		try{
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			PolicyScopeResource onapData = (PolicyScopeResource)mapper.readValue(root.get("data").toString(), PolicyScopeResource.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -896,9 +906,9 @@ public class PolicyScopeDictionaryController {
 			return null;
 		}
 		catch (Exception e){
-			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			LOGGER.error(e);
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PushPolicyController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PushPolicyController.java
index ace67a1e9..885a6117f 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PushPolicyController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/PushPolicyController.java
@@ -58,12 +58,17 @@ public class PushPolicyController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(PushPolicyController.class);
 	
 	private static CommonClassDao commonClassDao;
-	
+	private static String policyNames = "policyName";
+	private static String errorMsg	= "error";
+	private static String operation = "operation";
+	private static String messageContent = "message";
 	@Autowired
 	public PushPolicyController(CommonClassDao commonClassDao){
 		PushPolicyController.commonClassDao = commonClassDao;
 	}
-	
+	/*
+	 * This is an empty constructor
+	 */
 	public PushPolicyController(){}
 	
 	@RequestMapping(value="/pushPolicy", method=RequestMethod.POST)
@@ -74,17 +79,17 @@ public class PushPolicyController {
 			JsonNode root = mapper.readTree(request.getInputStream());
 			String policyScope = root.get("policyScope").asText();
 			String filePrefix = root.get("filePrefix").asText();
-			String policyName = root.get("policyName").asText();
+			String policyName = root.get(policyNames).asText();
 			String pdpGroup = root.get("pdpGroup").asText();
 			String requestID = request.getHeader("X-ECOMP-RequestID");
 			if(requestID==null){
 				requestID = UUID.randomUUID().toString();
-                LOGGER.info("No request ID provided, sending generated ID: " + requestID.toString());
+                LOGGER.info("No request ID provided, sending generated ID: " + requestID);
 			}
 			LOGGER.info("Push policy Request : " + root.asText());
 			String policyVersionName = policyScope.replace(".", File.separator) + File.separator
 					+ filePrefix + policyName;
-			List<?> policyVersionObject = commonClassDao.getDataById(PolicyVersion.class, "policyName", policyVersionName);
+			List<?> policyVersionObject = commonClassDao.getDataById(PolicyVersion.class, policyNames, policyVersionName);
 			if(policyVersionObject!=null){
 				PolicyVersion policyVersion = (PolicyVersion) policyVersionObject.get(0);
 				String policyID = policyVersionName.replace(File.separator, "."); // This is before adding version.
@@ -93,18 +98,17 @@ public class PushPolicyController {
 			}else{
 				String message = "Unknown Policy '" + policyName + "'";
 				PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " " + message);
-				response.addHeader("error", "unknownPolicy");
-				response.addHeader("operation", "push");
-				response.addHeader("message", message);
+				response.addHeader(errorMsg, "unknownPolicy");
+				response.addHeader(operation, "push");
+				response.addHeader(messageContent, message);
 				response.setStatus(HttpServletResponse.SC_NOT_FOUND);
 				return;
 			}
-			//safetyChecker(policyName);
 		} catch (NullPointerException | IOException e) {
 			LOGGER.error(e);
 			response.setStatus(HttpServletResponse.SC_NOT_FOUND);
-			response.addHeader("error", "unknown");
-			response.addHeader("operation", "push");
+			response.addHeader(errorMsg, "unknown");
+			response.addHeader(operation, "push");
 			return;
 		}
 	}
@@ -113,7 +117,6 @@ public class PushPolicyController {
 		StdPDPGroup selectedPDPGroup = null;
 		StdPDPPolicy selectedPolicy = null;
 		//Get the current policies from the Group and Add the new one
-		//Set<PDPPolicy> currentPoliciesInGroup = null;
 		try {
 			selectedPDPGroup = (StdPDPGroup) XACMLPapServlet.getPAPEngine().getGroup(pdpGroup);
 		} catch (PAPException e1) {
@@ -122,9 +125,9 @@ public class PushPolicyController {
 		if(selectedPDPGroup==null){
 			String message = "Unknown groupId '" + selectedPDPGroup + "'";
 			PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " " + message);
-			response.addHeader("error", "unknownGroupId");
-			response.addHeader("operation", "push");
-			response.addHeader("message", message);
+			response.addHeader(errorMsg, "unknownGroupId");
+			response.addHeader(operation, "push");
+			response.addHeader(messageContent, message);
 			response.setStatus(HttpServletResponse.SC_NOT_FOUND);
 			return;
 		}
@@ -132,18 +135,18 @@ public class PushPolicyController {
 		EntityManager em = XACMLPapServlet.getEmf().createEntityManager();
 		Query createPolicyQuery = em.createQuery("SELECT p FROM PolicyEntity p WHERE p.scope=:scope AND p.policyName=:policyName");			
 		createPolicyQuery.setParameter("scope", policyScope);
-		createPolicyQuery.setParameter("policyName", policyName.substring(policyScope.length()+1));
+		createPolicyQuery.setParameter(policyNames, policyName.substring(policyScope.length()+1));
 		List<?> createPolicyQueryList = createPolicyQuery.getResultList();
 		PolicyEntity policyEntity = null;
-		if(createPolicyQueryList.size()>0){
+		if(!createPolicyQueryList.isEmpty()){
 			policyEntity = (PolicyEntity)createPolicyQueryList.get(0);
 		}else{
 			PolicyLogger.error("Somehow, more than one policy with the same scope, name, and deleted status were found in the database");
 			String message = "Unknown Policy '" + policyName + "'";
 			PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " " + message);
-			response.addHeader("error", "unknownPolicy");
-			response.addHeader("operation", "push");
-			response.addHeader("message", message);
+			response.addHeader(errorMsg, "unknownPolicy");
+			response.addHeader(operation, "push");
+			response.addHeader(messageContent, message);
 			response.setStatus(HttpServletResponse.SC_NOT_FOUND);
 			return;
 		}
@@ -162,68 +165,16 @@ public class PushPolicyController {
 			new ObjectOutputStream(response.getOutputStream()).writeObject(selectedPolicy);
 		} catch (IOException e) {
 			LOGGER.error(e);
-			response.addHeader("error", "policyCopyError");
-			response.addHeader("message", e.getMessage());
+			response.addHeader(errorMsg, "policyCopyError");
+			response.addHeader(messageContent, e.getMessage());
 			response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 			return;
 		}
 		response.addHeader("Content-Type","application/json");
 		response.setStatus(HttpServletResponse.SC_ACCEPTED);
-		response.addHeader("operation", "push");
+		response.addHeader(operation, "push");
 		response.addHeader("policyId", policyName);
 		return;
 		// TODO : Check point to push policies within PAP. 
-		/*PolicyDBDaoTransaction addPolicyToGroupTransaction = XACMLPapServlet.getDbDaoTransaction();
-		try{
-			if (selectedPolicy != null) {
-				// Add Current policies from container
-				currentPoliciesInGroup = selectedPDPGroup.getPolicies();
-				// copy policy to PAP
-				addPolicyToGroupTransaction.addPolicyToGroup(selectedPDPGroup.getId(), policyName,"XACMLPapServlet.pushPolicyController");
-				((StdPDPGroup) selectedPDPGroup).copyPolicyToFile(policyName, policyID, new FileInputStream(temp));
-				addPolicyToGroupTransaction.commitTransaction();
-			}
-		}catch (Exception e) {
-			addPolicyToGroupTransaction.rollbackTransaction();
-			String message = "Policy '" + policyName + "' not copied to group '" + pdpGroup +"': " + e;
-			PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW + " " + message);
-			PolicyLogger.audit("Transaction Failed - See Error.log");
-			response.addHeader("error", "policyCopyError");
-			response.addHeader("message", message);
-			response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-			return;
-		}
-		//If the selected policy is in the group we must remove it because the name is default
-		for (PDPPolicy existingPolicy : currentPoliciesInGroup) {
-			if (existingPolicy.getId().equals(selectedPolicy.getId())) {
-				selectedPDPGroup.removePolicyFromGroup(existingPolicy);
-				LOGGER.debug("Removing existing policy: " + existingPolicy);
-				break;
-			}
-		}
-		//Update the PDP Group after removing old version of policy
-		//Set<PDPPolicy> updatedPoliciesInGroup = selectedPDPGroup.getPolicies();
-		//need to remove the policy with default name from group
-		for (PDPPolicy updatedPolicy : currentPoliciesInGroup) {
-			if (updatedPolicy.getName().equalsIgnoreCase("default")) {
-				selectedPDPGroup.removePolicyFromGroup(updatedPolicy);
-			}
-		}
-		Set<PDPPolicy> policies = selectedPDPGroup.getPolicies();
-		policies.add(selectedPolicy);
-		selectedPDPGroup.setPolicies(policies);
-		// Update now. 
-		try {
-			XACMLPapServlet.getPAPEngine().updateGroup(selectedPDPGroup);
-		} catch (PAPException e) {
-			// TODO Auto-generated catch block
-			logger.error("Exception Occured"+e);
-		}
-		// policy file copied ok and the Group was updated on the PDP
-		response.setStatus(HttpServletResponse.SC_NO_CONTENT);
-		response.addHeader("operation", "push");
-		response.addHeader("policyId", policyName);
-		response.addHeader("groupId", pdpGroup);
-		return;*/
 	}
 }
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/SafePolicyController.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/SafePolicyController.java
index f994cbacb..621d49869 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/SafePolicyController.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/controller/SafePolicyController.java
@@ -22,7 +22,6 @@ package org.onap.policy.pap.xacml.rest.controller;
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
@@ -55,7 +54,12 @@ public class SafePolicyController {
 	private static final Logger LOGGER  = FlexLogger.getLogger(SafePolicyController.class);
 	
 	private static CommonClassDao commonClassDao;
-	
+	private static String duplicateResponseString = "Duplicate";
+	private static String operation = "operation";
+	private static String apiflag = "apiflag";
+	private static String utf8 = "UTF-8";
+	private static String applicationJsonContentType = "application / json";
+
 	@Autowired
 	public SafePolicyController(CommonClassDao commonClassDao){
 		SafePolicyController.commonClassDao = commonClassDao;
@@ -64,15 +68,12 @@ public class SafePolicyController {
 	public SafePolicyController(){}	
 	
 	public UserInfo getUserInfo(String loginId){
-		UserInfo name = (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
-		return name;	
+		return (UserInfo) commonClassDao.getEntityItem(UserInfo.class, "userLoginId", loginId);
 	}
 	
-	private static String DUPLICATE = "Duplicate";
-
 	@RequestMapping(value = { "/get_RiskTypeDataByName" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.GET }, produces = MediaType.APPLICATION_JSON_VALUE)
-	public void getRiskTypeDictionaryByNameEntityData(HttpServletRequest request, HttpServletResponse response) {
+	public void getRiskTypeDictionaryByNameEntityData(HttpServletResponse response) {
 		try {
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -87,7 +88,7 @@ public class SafePolicyController {
 
 	@RequestMapping(value = { "/get_RiskTypeData" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.GET }, produces = MediaType.APPLICATION_JSON_VALUE)
-	public void getOnapNameDictionaryEntityData(HttpServletRequest request, HttpServletResponse response) {
+	public void getOnapNameDictionaryEntityData(HttpServletResponse response) {
 		try {
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -95,7 +96,7 @@ public class SafePolicyController {
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
             response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(operation, "getDictionary");
 			response.getWriter().write(j.toString());
 		} catch (Exception e) {
             LOGGER.error(e);
@@ -107,12 +108,12 @@ public class SafePolicyController {
 	@RequestMapping(value = { "/sp_dictionary/save_riskType" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.POST })
 	public ModelAndView saveRiskTypeDictionary(HttpServletRequest request, HttpServletResponse response)
-			throws UnsupportedEncodingException, IOException {
+			throws IOException {
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -126,11 +127,10 @@ public class SafePolicyController {
                 userId = "API";
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if ("update".equalsIgnoreCase(request.getParameter("operation"))){
+                if ("update".equalsIgnoreCase(request.getParameter(operation))){
                     List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(riskTypeData.getRiskName(), "name", RiskType.class);
-                    int id = 0;
                     RiskType data = (RiskType) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     
                     if(id==0){
                         isFakeUpdate=true;
@@ -164,13 +164,13 @@ public class SafePolicyController {
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = DUPLICATE;
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(RiskType.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals(DUPLICATE)) {
+                if (responseString!=null && !responseString.equals(duplicateResponseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
@@ -181,9 +181,9 @@ public class SafePolicyController {
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{riskTypeDictionaryDatas: " + responseString + "}");
@@ -192,8 +192,8 @@ public class SafePolicyController {
             }
         }catch (Exception e) {
         	LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -203,16 +203,16 @@ public class SafePolicyController {
 	@RequestMapping(value = { "/sp_dictionary/remove_riskType" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.POST })
 	public ModelAndView removeOnapDictionary(HttpServletRequest request, HttpServletResponse response)
-			throws UnsupportedEncodingException, IOException{
+			throws IOException{
 		try {
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 			JsonNode root = mapper.readTree(request.getReader());
 			RiskType onapData = (RiskType) mapper.readValue(root.get("data").toString(), RiskType.class);
 			commonClassDao.delete(onapData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -223,8 +223,8 @@ public class SafePolicyController {
 			return null;
 		} catch (Exception e) {
 			LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -233,7 +233,7 @@ public class SafePolicyController {
 
 	@RequestMapping(value = { "/get_SafePolicyWarningDataByName" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.GET }, produces = MediaType.APPLICATION_JSON_VALUE)
-	public void getSafePolicyWarningEntityDataByName(HttpServletRequest request, HttpServletResponse response) {
+	public void getSafePolicyWarningEntityDataByName(HttpServletResponse response) {
 		try {
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -249,7 +249,7 @@ public class SafePolicyController {
 
 	@RequestMapping(value = { "/get_SafePolicyWarningData" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.GET }, produces = MediaType.APPLICATION_JSON_VALUE)
-	public void getSafePolicyWarningeEntityData(HttpServletRequest request, HttpServletResponse response) {
+	public void getSafePolicyWarningeEntityData(HttpServletResponse response) {
 		try {
 			Map<String, Object> model = new HashMap<>();
 			ObjectMapper mapper = new ObjectMapper();
@@ -258,7 +258,7 @@ public class SafePolicyController {
 			JsonMessage msg = new JsonMessage(mapper.writeValueAsString(model));
 			JSONObject j = new JSONObject(msg);
             response.addHeader("successMapKey", "success"); 
-            response.addHeader("operation", "getDictionary");
+            response.addHeader(operation, "getDictionary");
 			response.getWriter().write(j.toString());
 		} catch (Exception e) {
 			LOGGER.error(e);
@@ -270,12 +270,12 @@ public class SafePolicyController {
 	@RequestMapping(value = { "/sp_dictionary/save_safePolicyWarning" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.POST })
 	public ModelAndView saveSafePolicyWarningDictionary(HttpServletRequest request, HttpServletResponse response)
-			throws UnsupportedEncodingException, IOException {
+			throws IOException {
 		try {
 			boolean duplicateflag = false;
             boolean isFakeUpdate = false;
             boolean fromAPI = false;
-            if (request.getParameter("apiflag")!=null && request.getParameter("apiflag").equalsIgnoreCase("api")) {
+            if (request.getParameter(apiflag)!=null && ("api").equalsIgnoreCase(request.getParameter(apiflag))) {
                 fromAPI = true;
             }
 			ObjectMapper mapper = new ObjectMapper();
@@ -287,11 +287,10 @@ public class SafePolicyController {
                         .readValue(root.get("dictionaryFields").toString(), SafePolicyWarning.class);
                 
                 //check if update operation or create, get id for data to be updated and update attributeData
-                if (request.getParameter("operation").equals("update")) {
+                if (("update").equals(request.getParameter(operation))) {
                     List<Object> duplicateData =  commonClassDao.checkDuplicateEntry(safePolicyWarning.getName(), "name", SafePolicyWarning.class);
-                    int id = 0;
                     SafePolicyWarning data = (SafePolicyWarning) duplicateData.get(0);
-                    id = data.getId();
+                    int id = data.getId();
                     
                     if(id==0){
                         isFakeUpdate=true;
@@ -318,13 +317,13 @@ public class SafePolicyController {
 			}
             String responseString = "";
             if(duplicateflag){
-                responseString = DUPLICATE;
+                responseString = duplicateResponseString;
             }else{
                 responseString = mapper.writeValueAsString(commonClassDao.getData(SafePolicyWarning.class));
             }
             
             if (fromAPI) {
-                if (responseString!=null && !responseString.equals(DUPLICATE)) {
+                if (responseString!=null && !responseString.equals(duplicateResponseString)) {
                     if(isFakeUpdate){
                         responseString = "Exists";
                     } else {
@@ -335,9 +334,9 @@ public class SafePolicyController {
                 result.setViewName(responseString);
                 return result;
             } else {
-                response.setCharacterEncoding("UTF-8");
-                response.setContentType("application / json");
-                request.setCharacterEncoding("UTF-8");
+                response.setCharacterEncoding(utf8);
+                response.setContentType(applicationJsonContentType);
+                request.setCharacterEncoding(utf8);
  
                 PrintWriter out = response.getWriter();
                 JSONObject j = new JSONObject("{safePolicyWarningDatas: " + responseString + "}");
@@ -347,8 +346,8 @@ public class SafePolicyController {
  
         }catch (Exception e) {
         	LOGGER.error(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
@@ -358,7 +357,7 @@ public class SafePolicyController {
 	@RequestMapping(value = { "/sp_dictionary/remove_SafePolicyWarning" }, method = {
 			org.springframework.web.bind.annotation.RequestMethod.POST })
 	public ModelAndView removeSafePolicyWarningDictionary(HttpServletRequest request, HttpServletResponse response)
-			throws UnsupportedEncodingException, IOException {
+			throws IOException {
 		try {
 			ObjectMapper mapper = new ObjectMapper();
 			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
@@ -366,9 +365,9 @@ public class SafePolicyController {
 			SafePolicyWarning safePolicyWarningData = (SafePolicyWarning) mapper.readValue(root.get("data").toString(),
 					SafePolicyWarning.class);
 			commonClassDao.delete(safePolicyWarningData);
-			response.setCharacterEncoding("UTF-8");
-			response.setContentType("application / json");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			response.setContentType(applicationJsonContentType);
+			request.setCharacterEncoding(utf8);
 
 			PrintWriter out = response.getWriter();
 
@@ -379,8 +378,8 @@ public class SafePolicyController {
 			return null;
 		} catch (Exception e) {
 			System.out.println(e);
-			response.setCharacterEncoding("UTF-8");
-			request.setCharacterEncoding("UTF-8");
+			response.setCharacterEncoding(utf8);
+			request.setCharacterEncoding(utf8);
 			PrintWriter out = response.getWriter();
 			out.write(e.getMessage());
 		}
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/handler/APIRequestHandler.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/handler/APIRequestHandler.java
index 117fc04e3..3b254b005 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/handler/APIRequestHandler.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/handler/APIRequestHandler.java
@@ -54,7 +54,7 @@ public class APIRequestHandler {
 			return;
 		}
 		if ("getMetrics".equalsIgnoreCase(apiflag)){
-			MetricService.doGetPolicyMetrics(request, response);
+			MetricService.doGetPolicyMetrics(response);
 			return;
 		}
 	}
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/DictionaryService.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/DictionaryService.java
index c96f85dcf..25edb2668 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/DictionaryService.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/DictionaryService.java
@@ -23,7 +23,6 @@ import java.io.IOException;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
-
 import org.onap.policy.pap.xacml.rest.controller.ActionPolicyDictionaryController;
 import org.onap.policy.pap.xacml.rest.controller.BRMSDictionaryController;
 import org.onap.policy.pap.xacml.rest.controller.ClosedLoopDictionaryController;
@@ -48,200 +47,155 @@ public class DictionaryService {
 	public String saveOnapDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		
 		DictionaryController dictionary = new DictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveOnapDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
-		
+		return result.getViewName();
 	}
 	
 	public String saveAttributeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		DictionaryController dictionary = new DictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveAttributeDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
-	}
+		return result.getViewName();
+		}
 	
 	public String saveActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		
 		ActionPolicyDictionaryController action = new ActionPolicyDictionaryController();
-		String responseString = null;
 			ModelAndView result = action.saveActionPolicyDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException {
 		
 		BRMSDictionaryController dictionary = new BRMSDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveBRMSParamDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveVSCLAction(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveVSCLAction(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveVnfType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveVnfType(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePEPOptions(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePEPOptions(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveVarbind(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveVarbind(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveServiceType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveServiceType(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveSiteType(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveSiteType(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveSettingsDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		DecisionPolicyDictionaryController dictionary = new DecisionPolicyDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveSettingsDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveDescriptiveDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		DescriptiveDictionaryController dictionary = new DescriptiveDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveDescriptiveDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveEnforcerDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		EnforcerDictionaryController dictionary = new EnforcerDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveEnforcerDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveActionListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveActionListDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveProtocolListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveProtocolListDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveZoneDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveSecurityZoneDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePrefixListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePrefixListDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveAddressGroupDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveServiceGroupDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveServiceListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveServiceListDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveTermListDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveTermListDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	
@@ -250,108 +204,84 @@ public class DictionaryService {
 	public String saveMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveMicroServiceLocationDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveMicroServiceConfigNameDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveDCAEUUIDDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveMicroServiceModelsDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveMicroServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveMicroServiceAttributeDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePSServiceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePSServiceDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePSResourceDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePSResourceDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePSTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePSTypeDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePSClosedLoopDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String savePSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-		String responseString = null;
 			ModelAndView result = dictionary.savePSGroupScopeDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveRiskTypeDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		
 		SafePolicyController dictionary = new SafePolicyController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveRiskTypeDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	public String saveSafePolicyWarningDictionary(HttpServletRequest request, HttpServletResponse response) throws IOException{
 		SafePolicyController dictionary = new SafePolicyController();
-		String responseString = null;
 			ModelAndView result = dictionary.saveSafePolicyWarningDictionary(request, response);
-			responseString = result.getViewName();
-		return responseString;
+		return result.getViewName();
 	}
 	
 	
@@ -360,172 +290,172 @@ public class DictionaryService {
 	 */
 	public void getOnapDictionary(HttpServletRequest request, HttpServletResponse response){
 		DictionaryController dictionary = new DictionaryController();
-			dictionary.getOnapNameDictionaryEntityData(request, response);					
+			dictionary.getOnapNameDictionaryEntityData(response);					
 	}
 	
 	public void getAttributeDictionary(HttpServletRequest request, HttpServletResponse response){
 		DictionaryController dictionary = new DictionaryController();
-			dictionary.getAttributeDictionaryEntityData(request, response);
+			dictionary.getAttributeDictionaryEntityData(response);
 	}
 	
 	public void getActionPolicyDictionary(HttpServletRequest request, HttpServletResponse response){
 		ActionPolicyDictionaryController action = new ActionPolicyDictionaryController();
-			action.getActionPolicyDictionaryEntityData(request, response);	
+			action.getActionPolicyDictionaryEntityData(response);	
 	}
 	
 	public void getBRMSParamDictionary(HttpServletRequest request, HttpServletResponse response){
 		BRMSDictionaryController dictionary = new BRMSDictionaryController();
-			dictionary.getBRMSParamDictionaryEntityData(request, response);
+			dictionary.getBRMSParamDictionaryEntityData(response);
 	}
 	
 	public void getVSCLAction(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getVSCLActionDictionaryEntityData(request, response);
+			dictionary.getVSCLActionDictionaryEntityData(response);
 	}
 	
 	public void getVnfType(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getVNFTypeDictionaryEntityData(request, response);
+			dictionary.getVNFTypeDictionaryEntityData(response);
 	}
 	
 	public void getPEPOptions(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getPEPOptionsDictionaryEntityData(request, response);
+			dictionary.getPEPOptionsDictionaryEntityData(response);
 	}
 	
 	public void getVarbind(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getVarbindDictionaryEntityData(request, response);
+			dictionary.getVarbindDictionaryEntityData(response);
 	}
 	
 	public void getServiceType(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getClosedLoopServiceDictionaryEntityData(request, response);
+			dictionary.getClosedLoopServiceDictionaryEntityData(response);
 	}
 	
 	public void getSiteType(HttpServletRequest request, HttpServletResponse response){
 		ClosedLoopDictionaryController dictionary = new ClosedLoopDictionaryController();
-			dictionary.getClosedLoopSiteDictionaryEntityData(request, response);	
+			dictionary.getClosedLoopSiteDictionaryEntityData(response);	
 	}
 	
 	public void getSettingsDictionary(HttpServletRequest request, HttpServletResponse response){
 		DecisionPolicyDictionaryController dictionary = new DecisionPolicyDictionaryController();
-			dictionary.getSettingsDictionaryEntityData(request, response);
+			dictionary.getSettingsDictionaryEntityData(response);
 	}
 	
 	public void getDescriptiveDictionary(HttpServletRequest request, HttpServletResponse response){
 		DescriptiveDictionaryController dictionary = new DescriptiveDictionaryController();
-			dictionary.getDescriptiveDictionaryEntityData(request, response);
+			dictionary.getDescriptiveDictionaryEntityData(response);
 	}
 	
 	public void getEnforcerDictionary(HttpServletRequest request, HttpServletResponse response){
 		EnforcerDictionaryController dictionary = new EnforcerDictionaryController();
-			dictionary.getEnforcerDictionaryEntityData(request, response);
+			dictionary.getEnforcerDictionaryEntityData(response);
 	}
 	
 	public void getActionListDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getActionListDictionaryEntityData(request, response);
+			dictionary.getActionListDictionaryEntityData(response);
 	}
 	
 	public void getProtocolListDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getProtocolListDictionaryEntityData(request, response);
+			dictionary.getProtocolListDictionaryEntityData(response);
 	}
 	
 	public void getZoneDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getZoneDictionaryEntityData(request, response);
+			dictionary.getZoneDictionaryEntityData(response);
 	}
 	
 	public void getSecurityZoneDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getSecurityZoneDictionaryEntityData(request, response);
+			dictionary.getSecurityZoneDictionaryEntityData(response);
 	}
 	
 	public void getPrefixListDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getPrefixListDictionaryEntityData(request, response);
+			dictionary.getPrefixListDictionaryEntityData(response);
 	}
 	
 	public void getAddressGroupDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getAddressGroupDictionaryEntityData(request, response);
+			dictionary.getAddressGroupDictionaryEntityData(response);
 	}
 	
 	public void getServiceGroupDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getServiceGroupDictionaryEntityData(request, response);
+			dictionary.getServiceGroupDictionaryEntityData(response);
 	}
 	
 	public void getServiceListDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getServiceListDictionaryEntityData(request, response);
+			dictionary.getServiceListDictionaryEntityData(response);
 	}
 	
 	public void getTermListDictionary(HttpServletRequest request, HttpServletResponse response){
 		FirewallDictionaryController dictionary = new FirewallDictionaryController();
-			dictionary.getTermListDictionaryEntityData(request, response);
+			dictionary.getTermListDictionaryEntityData(response);
 	}
 	
 	
 	public void getMicroServiceLocationDictionary(HttpServletRequest request, HttpServletResponse response){
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-			dictionary.getMicroServiceLocationDictionaryEntityData(request, response);
+			dictionary.getMicroServiceLocationDictionaryEntityData(response);
 	}
 	
 	public void getMicroServiceConfigNameDictionary(HttpServletRequest request, HttpServletResponse response){
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-			dictionary.getMicroServiceConfigNameDictionaryEntityData(request, response);
+			dictionary.getMicroServiceConfigNameDictionaryEntityData(response);
 	}
 	
 	public void getDCAEUUIDDictionary(HttpServletRequest request, HttpServletResponse response){
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-			dictionary.getDCAEUUIDDictionaryEntityData(request, response);
+			dictionary.getDCAEUUIDDictionaryEntityData(response);
 	}
 	
 	public void getMicroServiceModelsDictionary(HttpServletRequest request, HttpServletResponse response){
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-			dictionary.getMicroServiceModelsDictionaryEntityData(request, response);
+			dictionary.getMicroServiceModelsDictionaryEntityData(response);
 	}
 	
 	public void getMicroServiceDictionary(HttpServletRequest request, HttpServletResponse response){
 		MicroServiceDictionaryController dictionary = new MicroServiceDictionaryController();
-			dictionary.getMicroServiceModelsDictionaryEntityData(request, response);
+			dictionary.getMicroServiceModelsDictionaryEntityData(response);
 	}
 	
 	public void getPSServiceDictionary(HttpServletRequest request, HttpServletResponse response){
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-			dictionary.getPSServiceEntityData(request, response);
+			dictionary.getPSServiceEntityData(response);
 	}
 	
 	public void getPSResourceDictionary(HttpServletRequest request, HttpServletResponse response){
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-			dictionary.getPSResourceEntityData(request, response);
+			dictionary.getPSResourceEntityData(response);
 	}
 	
 	public void getPSTypeDictionary(HttpServletRequest request, HttpServletResponse response){
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-			dictionary.getPSTypeEntityData(request, response);
+			dictionary.getPSTypeEntityData(response);
 	}
 	
 	public void getPSClosedLoopDictionary(HttpServletRequest request, HttpServletResponse response){
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-			dictionary.getPSClosedLoopEntityData(request, response);
+			dictionary.getPSClosedLoopEntityData(response);
 	}
 	
 	public void getPSGroupScopeDictionary(HttpServletRequest request, HttpServletResponse response){
 		PolicyScopeDictionaryController dictionary = new PolicyScopeDictionaryController();
-			dictionary.getGroupPolicyScopeEntityData(request, response);
+			dictionary.getGroupPolicyScopeEntityData(response);
 	}
 	
 	public void getRiskTypeDictionary(HttpServletRequest request, HttpServletResponse response){
 		SafePolicyController dictionary = new SafePolicyController();
-			dictionary.getOnapNameDictionaryEntityData(request, response);
+			dictionary.getOnapNameDictionaryEntityData(response);
 	}
 	
 	public void getSafePolicyWarningDictionary(HttpServletRequest request, HttpServletResponse response) {
 		SafePolicyController dictionary = new SafePolicyController();
-			dictionary.getSafePolicyWarningeEntityData(request, response);
+			dictionary.getSafePolicyWarningeEntityData(response);
 	}
 }
\ No newline at end of file
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/ImportService.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/ImportService.java
index 8a9e8ffac..e942e6b3b 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/ImportService.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/ImportService.java
@@ -41,6 +41,13 @@ import org.onap.policy.pap.xacml.rest.components.CreateNewMicroServiceModel;
 
 public class ImportService {
 	private static final Logger logger = FlexLogger.getLogger(ImportService.class);
+	private static String errorMessage = "Error in reading in file from API call";
+	private static String errorMsg	= "error";
+	private static String operation = "operation";
+	private static String importHeader = "import";
+	private static String service = "service";
+	private static String extractDir = "ExtractDir";
+	private static String successMessage = "success";
 	public void doImportMicroServicePut(HttpServletRequest request, HttpServletResponse response) {
 		String importServiceCreation = request.getParameter("importService");;
 		String fileName = request.getParameter("fileName");
@@ -48,8 +55,7 @@ public class ImportService {
 		String serviceName = request.getParameter("serviceName");
 		String description = request.getParameter("description");
 		Map<String, String> successMap = new HashMap<>();
-		switch(importServiceCreation){
-		case "BRMSPARAM":
+		if(("BRMSPARAM").equals(importServiceCreation)){
 			StringBuilder builder = new StringBuilder();
 			int ch;
 			try {
@@ -58,20 +64,20 @@ public class ImportService {
 				}
 			} catch (IOException e) {
 				logger.error(e);
-				PolicyLogger.error("Error in reading in file from API call");
+				PolicyLogger.error(errorMessage);
 				response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-				response.addHeader("error", "missing");	
-				response.addHeader("operation", "import");
-				response.addHeader("service", serviceName);
+				response.addHeader(errorMsg, "missing");	
+				response.addHeader(operation, importHeader);
+				response.addHeader(service, serviceName);
 			}
 			CreateBRMSRuleTemplate brmsRuleTemplate = new CreateBRMSRuleTemplate();
 			successMap = brmsRuleTemplate.addRule(builder.toString(), serviceName, description, "API");
-			break;
-		case "MICROSERVICE":
+		}
+		else if(("MICROSERVICE").equals(importServiceCreation)){
 			CreateNewMicroServiceModel newMS = null;
 			String randomID = UUID.randomUUID().toString();
 			if ( fileName != null) {
-				File extracDir = new File("ExtractDir");
+				File extracDir = new File(extractDir);
 				if (!extracDir.exists()){
 					extracDir.mkdirs();
 				}
@@ -86,21 +92,21 @@ public class ImportService {
 						scanner.close();
 					} catch (IOException e1) {
 						logger.error(e1);
-						PolicyLogger.error("Error in reading in file from API call");
+						PolicyLogger.error(errorMessage);
 						return;
 					}
 					PolicyLogger.info("XML request from API for import new Service"); 
 					try (Writer writer = new BufferedWriter(new OutputStreamWriter(
-							new FileOutputStream("ExtractDir" + File.separator + randomID+".xmi"), "utf-8"))) {
+							new FileOutputStream(extractDir + File.separator + randomID+".xmi"), "utf-8"))) {
 						writer.write(xmi);
 					} catch (IOException e) {
 						logger.error(e);
-						PolicyLogger.error("Error in reading in file from API call");
+						PolicyLogger.error(errorMessage);
 						return;
 					}
 				}else{ 
 					InputStream inputStream = null;
-					try(FileOutputStream outputStream = new FileOutputStream("ExtractDir" + File.separator + randomID+".zip")) {	
+					try(FileOutputStream outputStream = new FileOutputStream(extractDir + File.separator + randomID+".zip")) {	
 						inputStream = request.getInputStream();
 						byte[] buffer = new byte[4096];
 						int bytesRead = -1 ; 
@@ -122,40 +128,40 @@ public class ImportService {
 				}
 				newMS =  new CreateNewMicroServiceModel(fileName, serviceName, "API", version, randomID);
 				successMap = newMS.addValuesToNewModel();
-				if (successMap.containsKey("success")) {
+				if (successMap.containsKey(successMessage)) {
 					successMap.clear();
 					successMap = newMS.saveImportService();
 				}
 			}
-			break;
 		}
+		
 		// return a response to the PAP		    
-		if (successMap.containsKey("success")) {							
+		if (successMap.containsKey(successMessage)) {							
 			response.setStatus(HttpServletResponse.SC_OK);								
-			response.addHeader("successMapKey", "success");								
-			response.addHeader("operation", "import");
-			response.addHeader("service", serviceName);
+			response.addHeader("successMapKey", successMessage);								
+			response.addHeader(operation, importHeader);
+			response.addHeader(service, serviceName);
 		} else if (successMap.containsKey("DBError")) {
 			if (successMap.get("DBError").contains("EXISTS")){
 				response.setStatus(HttpServletResponse.SC_CONFLICT);
-				response.addHeader("service", serviceName);
-				response.addHeader("error", "modelExistsDB");
+				response.addHeader(service, serviceName);
+				response.addHeader(errorMsg, "modelExistsDB");
 			}else{
 				response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-				response.addHeader("error", "importDB");
+				response.addHeader(errorMsg, "importDB");
 			}
-			response.addHeader("operation", "import");
-			response.addHeader("service", serviceName);
-		}else if (successMap.get("error").contains("MISSING")){
+			response.addHeader(operation, importHeader);
+			response.addHeader(service, serviceName);
+		}else if (successMap.get(errorMsg).contains("MISSING")){
 			response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-			response.addHeader("error", "missing");	
-			response.addHeader("operation", "import");
-			response.addHeader("service", serviceName);
-		}else if (successMap.get("error").contains("VALIDATION")){
+			response.addHeader(errorMsg, "missing");	
+			response.addHeader(operation, importHeader);
+			response.addHeader(service, serviceName);
+		}else if (successMap.get(errorMsg).contains("VALIDATION")){
 			response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
-			response.addHeader("error", "validation");	
-			response.addHeader("operation", "import");
-			response.addHeader("service", serviceName);
+			response.addHeader(errorMsg, "validation");	
+			response.addHeader(operation, importHeader);
+			response.addHeader(service, serviceName);
 		}
 	}
 
diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/MetricService.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/MetricService.java
index 416af4413..d239dfa1b 100644
--- a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/MetricService.java
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/MetricService.java
@@ -36,8 +36,14 @@ import org.onap.policy.xacml.api.pap.OnapPDPGroup;
 import com.att.research.xacml.api.pap.PDPPolicy;
 
 public class MetricService {
-
-	public static void doGetPolicyMetrics(HttpServletRequest request, HttpServletResponse response) {
+	private static String errorMsg	= "error";
+	/*
+	 * This is a private constructor
+	 * */
+	public MetricService(){
+		
+	}
+	public static void doGetPolicyMetrics(HttpServletResponse response) {
 		Set<OnapPDPGroup> groups = new HashSet<>();
 		try {
 			//get the count of policies on the PDP
@@ -52,12 +58,12 @@ public class MetricService {
 			//get the count of policies on the PAP
 			EntityManager em = null;
 			if(XACMLPapServlet.getEmf()!=null){
-				em = (EntityManager) XACMLPapServlet.getEmf().createEntityManager();
+				em = XACMLPapServlet.getEmf().createEntityManager();
 			}
 			if (em==null){
 				PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " Error creating entity manager with persistence unit: " + XACMLPapServlet.getPersistenceUnit());
 				response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
-				response.addHeader("error", "Error creating entity manager with persistence unit");
+				response.addHeader(errorMsg, "Error creating entity manager with persistence unit");
 				return;
 			}
 			int papCount = ((Number) em.createNamedQuery("PolicyVersion.findAllCount").getSingleResult()).intValue();
@@ -78,14 +84,14 @@ public class MetricService {
 			}else{
 				String message = "The policy count on the PAP and PDP is 0.  Please check the database and file system to correct this error.";
 				response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
-				response.addHeader("error", message);
+				response.addHeader(errorMsg, message);
 				return;
 			}
 		} catch (Exception e) {
 			String message = XACMLErrorConstants.ERROR_DATA_ISSUE + " Error Querying the Database: " + e.getMessage();
 			PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE, e, "XACMLPapServlet", " Error Querying the Database.");
 			response.setStatus(HttpServletResponse.SC_BAD_REQUEST);								
-			response.addHeader("error", message);
+			response.addHeader(errorMsg, message);
 			return;			
 		}
 	}