Fix few sonar issues

Fix few sonar issues in CCSDK SLI Core module

Change-Id: I0e2454f7e23e73087ac42880c5e0b1e4c089dde8
Issue-Id: CCSDK-67
Signed-off-by: Ramu N <ramu.n@huawei.com>

2 files changed, 93 insertions, 66 deletions

diff --git a/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CommonConstants.java b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CommonConstants.java
new file mode 100644
index 00000000..d30b2b62
--- /dev/null
+++ b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CommonConstants.java
@@ -0,0 +1,27 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ * 						reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.sli.core.sli;
+
+public interface CommonConstants {
+
+    public static final String SERVICE_LOGIC_STATUS = "SvcLogic.status";
+}
diff --git a/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/SvcLogicContext.java b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/SvcLogicContext.java
index eaf57428..23277439 100644
--- a/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/SvcLogicContext.java
+++ b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/SvcLogicContext.java
@@ -8,9 +8,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -38,39 +38,38 @@ import org.w3c.dom.Text;
 
 public class SvcLogicContext {
 
-	private static final Logger LOG = LoggerFactory
-			.getLogger(SvcLogicContext.class);
-	
+	private static final Logger LOG = LoggerFactory.getLogger(SvcLogicContext.class);
+
 	private HashMap<String, String> attributes;
-	
+
 	private DOMDataBroker domDataBroker;
-	
+
 	private String status = "success";
-	
+
 	public SvcLogicContext()
 	{
-		this.attributes = new HashMap<String,String> ();
-		
+		this.attributes = new HashMap<> ();
+
 	}
-	
+
 	public SvcLogicContext(Properties props)
 	{
-		this.attributes = new HashMap<String, String> ();
-		
-		if (props.containsKey("SvcLogic.status"))
+		this.attributes = new HashMap<> ();
+
+		if (props.containsKey(CommonConstants.SERVICE_LOGIC_STATUS))
 		{
-			this.status = props.getProperty("SvcLogic.status");
+			this.status = props.getProperty(CommonConstants.SERVICE_LOGIC_STATUS);
 		}
-		
+
 		for (Object nameObj : props.keySet())
 		{
 			String propName = (String) nameObj;
 			attributes.put(propName, props.getProperty(propName));
 		}
 	}
-	
-	
-	
+
+
+
 	public DOMDataBroker getDomDataBroker() {
 		return domDataBroker;
 	}
@@ -83,14 +82,14 @@ public class SvcLogicContext {
 	{
 		if (attributes.containsKey(name))
 		{
-			return(attributes.get(name));
+			return attributes.get(name);
 		}
 		else
 		{
-			return(null);
+			return null;
 		}
 	}
-	
+
 	public void setAttribute(String name, String value)
 	{
 		if (value == null) {
@@ -101,10 +100,10 @@ public class SvcLogicContext {
 			attributes.put(name, value);
 		}
 	}
-	
+
 	public Set<String> getAttributeKeySet()
 	{
-		return(attributes.keySet());
+		return attributes.keySet();
 	}
 
 	public String getStatus() {
@@ -114,86 +113,88 @@ public class SvcLogicContext {
 	public void setStatus(String status) {
 		this.status = status;
 	}
-	
+
 	public Properties toProperties()
 	{
 		Properties props = new Properties();
-		
+
 		if (status != null)
 		{
-			props.setProperty("SvcLogic.status", status);
+			props.setProperty(CommonConstants.SERVICE_LOGIC_STATUS, status);
 		}
-		
-		for (String attrName : attributes.keySet())
+
+		String attrName;
+		String attrVal;
+		for (Map.Entry<String, String> entry : attributes.entrySet())
 		{
-			String attrVal = attributes.get(attrName);
+			attrName = entry.getKey();
+			attrVal = entry.getValue();
 			if (attrVal == null) {
-				LOG.warn("attribute " + attrName
-						+ "null - setting to empty string");
+				LOG.warn("attribute {} value is null - setting to empty string", attrName);
 				props.setProperty(attrName, "");
 			} else {
-				props.setProperty(attrName, attributes.get(attrName));
+				props.setProperty(attrName, attrVal);
 			}
 		}
-		
-		return(props);
+
+		return props;
 	}
-	
+
 	public void mergeDocument(String pfx, Document doc) {
 		String prefix = "";
-		
+
 		if (pfx != null) {
 			prefix = pfx;
 		}
-		
+
 		Element root = doc.getDocumentElement();
-		
+
 		mergeElement(prefix, root, null);
 	}
-	
+
 	public void mergeElement(String pfx, Element element, Map<String, Integer> nodeMap) {
-		
+
 		// In XML, cannot tell the difference between containers and lists.
 		// So, have to treat each element as both (ugly but necessary).
-		// We do this by passing a nodeMap to be used to count instance of each tag, 
-		// which will be used to set _length and to set index 
-		
-		LOG.trace("mergeElement("+pfx+","+element.getTagName()+","+nodeMap+")");
+		// We do this by passing a nodeMap to be used to count instance of each tag,
+		// which will be used to set _length and to set index
+
+		LOG.trace("mergeElement({},{},{})", pfx, element.getTagName(), nodeMap);
 
 		String curTagName = element.getTagName();
 		String prefix = curTagName;
-		
+
 		if (pfx != null) {
 			prefix = pfx + "." + prefix;
 		}
-		
+
 		int myIdx = 0;
-		
+
 		if (nodeMap != null) {
 			if (nodeMap.containsKey(curTagName)) {
-				myIdx = nodeMap.get(curTagName).intValue();
+				myIdx = nodeMap.get(curTagName);
 			}
 
-			nodeMap.put(curTagName, new Integer(myIdx+1));
-			this.setAttribute(prefix+"_length", ""+(myIdx+1));
+			nodeMap.put(curTagName, myIdx+1);
+			this.setAttribute(prefix+"_length", Integer.toString(myIdx+1));
 		}
-		
+
 		NodeList children = element.getChildNodes();
-		
+
 		int numChildren  = children.getLength();
-		
-		Map<String, Integer> childMap = new HashMap<String, Integer>();
-		Map<String, Integer> idxChildMap = new HashMap<String, Integer>();
-		
+
+		Map<String, Integer> childMap = new HashMap<>();
+		Map<String, Integer> idxChildMap = new HashMap<>();
+
 		for (int i = 0 ; i < numChildren ; i++) {
 			Node curNode = children.item(i);
-			
+
 			if (curNode instanceof Text) {
 				Text curText = (Text) curNode;
 				String curTextValue = curText.getTextContent();
-				LOG.trace("Setting ctx variable "+prefix+" = "+curTextValue);
+				LOG.trace("Setting ctx variable {} = {}", prefix, curTextValue);
 				this.setAttribute(prefix, curText.getTextContent());
-				
+
 
 			} else if (curNode instanceof Element) {
 				mergeElement(prefix, (Element) curNode, childMap);
@@ -204,9 +205,9 @@ public class SvcLogicContext {
 				}
 			}
 		}
-		
+
 	}
-	
+
 	public String resolve(String ctxVarName) {
 
 		if (ctxVarName.indexOf('[') == -1) {
@@ -215,16 +216,15 @@ public class SvcLogicContext {
 		}
 
 		// Resolve any array references
-		StringBuffer sbuff = new StringBuffer();
+		StringBuilder sbuff = new StringBuilder();
 		String[] ctxVarParts = ctxVarName.split("\\[");
 		sbuff.append(ctxVarParts[0]);
 		for (int i = 1; i < ctxVarParts.length; i++) {
 			if (ctxVarParts[i].startsWith("$")) {
-				int endBracketLoc = ctxVarParts[i].indexOf("]");
+				int endBracketLoc = ctxVarParts[i].indexOf(']');
 				if (endBracketLoc == -1) {
 					// Missing end bracket ... give up parsing
-					LOG.warn("Variable reference " + ctxVarName
-							+ " seems to be missing a ']'");
+					LOG.warn("Variable reference {} seems to be missing a ']'", ctxVarName);
 					return (this.getAttribute(ctxVarName));
 				}