Initial OpenECOMP policy/engine commit

Change-Id: I7dbff37733b661643dd4d1caefa3d7dccc361b6e
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

5 files changed, 953 insertions, 0 deletions

diff --git a/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSGateway.java b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSGateway.java
new file mode 100644
index 000000000..70c537c69
--- /dev/null
+++ b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSGateway.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.openecomp.policy.brmsInterface;
+
+import org.openecomp.policy.api.NotificationScheme;
+import org.openecomp.policy.api.PolicyEngine;
+
+//import org.apache.log4j.Logger;
+
+//import org.apache.commons.logging.Log;
+//import org.apache.commons.logging.LogFactory;
+
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+
+
+/**
+ * BRMSGateway: This application acts as the Gateway interface between the PDP XACML and PDP Drools. 
+ * The listens for BRMS based policies and pushes them to the specified Policy Repository, from where the PDP Drools reads the Rule Jar.  
+ * 
+ * @version 0.1
+ */
+public class BRMSGateway {
+//	private static final Logger logger = Logger.getLogger(BRMSGateway.class.getName());
+	private static final Logger logger = FlexLogger.getLogger(BRMSGateway.class);
+	private static final String configFile = "config.properties";
+	
+	private static PolicyEngine policyEngine = null;
+	
+	public static void main(String[] args) throws Exception{
+		// Initialize Handler. 
+		logger.info("Initializing BRMS Handler");
+		BRMSHandler bRMSHandler = null;
+		try{
+			bRMSHandler = new BRMSHandler(configFile);
+		}catch(NullPointerException e){
+			logger.error("Check your property file: " + e.getMessage());
+			System.exit(1);
+		}
+		
+		// Set Handler with Auto Notification and initialize policyEngine
+		try{
+			logger.info("Initializing policyEngine with Auto Notifications");
+			policyEngine= new PolicyEngine(configFile,NotificationScheme.AUTO_ALL_NOTIFICATIONS, bRMSHandler);
+		}catch(Exception e){
+			logger.error(XACMLErrorConstants.ERROR_UNKNOWN+"Error while Initializing Policy Engine "  + e.getMessage()); 
+		}
+		
+		//Keep Running.... 
+		Runnable runnable = new Runnable(){
+			public void run(){
+				while (true){
+					try {
+						Thread.sleep(30000);
+					} catch (InterruptedException e) {
+						logger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR+"Thread Exception " + e.getMessage()); 
+					}
+				}
+			}
+		};
+		Thread thread = new Thread(runnable);
+		thread.start();
+	}
+	
+	public static PolicyEngine getPolicyEngine(){
+		return policyEngine;
+	}
+}
diff --git a/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSHandler.java b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSHandler.java
new file mode 100644
index 000000000..2cc178736
--- /dev/null
+++ b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSHandler.java
@@ -0,0 +1,134 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.openecomp.policy.brmsInterface;
+
+import java.util.Collection;
+
+import org.openecomp.policy.api.ConfigRequestParameters;
+import org.openecomp.policy.api.LoadedPolicy;
+import org.openecomp.policy.api.NotificationType;
+import org.openecomp.policy.api.PDPNotification;
+import org.openecomp.policy.api.PolicyConfig;
+import org.openecomp.policy.api.PolicyConfigStatus;
+import org.openecomp.policy.api.PolicyEngine;
+import org.openecomp.policy.api.RemovedPolicy;
+import org.openecomp.policy.utils.BackUpHandler;
+
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+
+//import org.apache.log4j.Logger;
+
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+
+/**
+ * BRMSHandler: Notification Handler which listens for PDP Notifications. 
+ * Take action only for BRMS policies. 
+ * 
+ * @version 0.3
+ */
+public class BRMSHandler implements BackUpHandler{
+	
+//	private static final Logger logger = Logger.getLogger(BRMSHandler.class.getName());
+	private static final Logger logger = FlexLogger.getLogger(BRMSHandler.class.getName());
+	// This Values are fixed for BRMS based rules. Don't change until they are changed during creation in PAP-ADMIN. 
+	//private static final String ecompName = "DROOLS";
+	//private static final String configName = "BRMS_RAW_RULE";
+	
+	private BRMSPush bRMSPush = null;
+	
+	public BRMSHandler(String propertiesFile) throws Exception{
+		bRMSPush = new BRMSPush(propertiesFile, this);
+	}
+
+	@Override
+	public void notificationReceived(PDPNotification notification) {
+		logger.info("Notification Recieved");
+		logger.info(notification.getNotificationType().toString());
+		bRMSPush.initiate();
+		if(BRMSPush.getBackUpMonitor().getFlag()){
+			logger.info("Master Application performing on Notification ");
+			runOnNotification(notification);
+		}else{
+			logger.info("Slave application Skipping Notification.. ");
+		}
+	}
+	
+	private void removedPolicies(Collection<RemovedPolicy> removedPolicies){
+		Boolean removed = false;
+		logger.info("Removed Policies");
+		for(RemovedPolicy removedPolicy: removedPolicies){
+			logger.info(removedPolicy.getPolicyName());
+			logger.info(removedPolicy.getVersionNo());
+			if(removedPolicy.getPolicyName().contains("_BRMS_")){
+				try{
+					String name = removedPolicy.getPolicyName().substring(removedPolicy.getPolicyName().indexOf("_BRMS_")+6, removedPolicy.getPolicyName().length());
+					name= name.substring(name.indexOf("_")+1,name.length());
+					logger.info("Policy Removed with this policy Name : " + name);
+					bRMSPush.removeRule(name);
+					removed = true;
+				}catch(Exception e){
+					logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW+"Rertriving policy failed " + e.getMessage());
+				}
+			}
+		}
+		if(removed){
+			bRMSPush.pushRules();
+		}
+	}
+	
+	public void runOnNotification(PDPNotification notification){
+		if(notification.getNotificationType().equals(NotificationType.REMOVE)){
+			removedPolicies(notification.getRemovedPolicies());
+		}else if(notification.getNotificationType().equals(NotificationType.UPDATE)|| notification.getNotificationType().equals(NotificationType.BOTH)){
+			logger.info("Updated Policies: \n");
+			for(LoadedPolicy updatedPolicy: notification.getLoadedPolicies()){
+				logger.info("policyName : " + updatedPolicy.getPolicyName());
+				logger.info("policyVersion :" + updatedPolicy.getVersionNo());
+				logger.info("Matches: " + updatedPolicy.getMatches());
+				// Checking the Name is correct or not. 
+				if(updatedPolicy.getPolicyName().contains("_BRMS_")){
+					try{
+						PolicyEngine policyEngine = BRMSGateway.getPolicyEngine();
+						if(policyEngine!=null){
+							ConfigRequestParameters configRequestParameters = new ConfigRequestParameters();
+							configRequestParameters.setPolicyName(updatedPolicy.getPolicyName());
+							Collection<PolicyConfig> policyConfigs = policyEngine.getConfig(configRequestParameters);
+							for(PolicyConfig policyConfig: policyConfigs){
+								if(policyConfig.getPolicyConfigStatus().equals(PolicyConfigStatus.CONFIG_RETRIEVED)){
+									String name = policyConfig.getPolicyName().substring(policyConfig.getPolicyName().indexOf("_BRMS_")+6, policyConfig.getPolicyName().length());
+									name= name.substring(name.indexOf("_")+1,name.length());
+									logger.info("Policy Retrieved with this Name notified: " + name);
+								    bRMSPush.addRule(name,policyConfig.toOther(),policyConfig.getResponseAttributes());
+								}else{
+									logger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR +"Fail to retrieve policy so rule will not be pushed to PolicyRepo !!!!\n\n");
+								}
+							}
+						}
+					}catch(Exception e){
+						logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW+"Rertriving policy failed " + e.getMessage());
+					}
+				}
+			}
+			bRMSPush.pushRules();
+		}
+	}
+}
diff --git a/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSPush.java b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSPush.java
new file mode 100644
index 000000000..3ea8d624d
--- /dev/null
+++ b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/BRMSPush.java
@@ -0,0 +1,627 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.openecomp.policy.brmsInterface;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.GeneralSecurityException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.UUID;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang.StringEscapeUtils;
+import org.apache.maven.model.Dependency;
+import org.apache.maven.model.DeploymentRepository;
+import org.apache.maven.model.DistributionManagement;
+import org.apache.maven.model.Exclusion;
+import org.apache.maven.model.Model;
+import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
+import org.apache.maven.shared.invoker.DefaultInvocationRequest;
+import org.apache.maven.shared.invoker.DefaultInvoker;
+import org.apache.maven.shared.invoker.InvocationRequest;
+import org.apache.maven.shared.invoker.InvocationResult;
+import org.apache.maven.shared.invoker.Invoker;
+import org.codehaus.plexus.util.IOUtil;
+import org.codehaus.plexus.util.WriterFactory;
+import org.openecomp.policy.utils.BackUpHandler;
+import org.openecomp.policy.utils.BackUpMonitor;
+import org.openecomp.policy.utils.PolicyUtils;
+import org.sonatype.nexus.client.NexusClient;
+import org.sonatype.nexus.client.NexusClientException;
+import org.sonatype.nexus.client.NexusConnectionException;
+import org.sonatype.nexus.client.rest.NexusRestClient;
+import org.sonatype.nexus.rest.model.NexusArtifact;
+
+//import org.apache.log4j.Logger;
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+import org.openecomp.policy.common.im.AdministrativeStateException;
+import org.openecomp.policy.common.im.IntegrityMonitor;
+import com.att.nsa.cambria.client.CambriaBatchingPublisher;
+import com.att.nsa.cambria.client.CambriaClientBuilders;
+import com.att.nsa.cambria.client.CambriaClientBuilders.PublisherBuilder;
+import com.fasterxml.jackson.core.JsonProcessingException;
+
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+
+
+/**
+ * BRMSPush: Application responsible to push policies to the BRMS PDP Policy Repository (PR). 
+ * Mavenize and push policy to PR
+ * 
+ * @version 0.4 
+ */
+@SuppressWarnings("deprecation")
+public class BRMSPush {
+
+	
+	private static final Logger logger = FlexLogger.getLogger(BRMSPush.class.getName());
+	private static final String projectsLocation = "RuleProjects";
+	private static final String goals[] = {"clean", "deploy"};
+
+	private static Map<String, String> modifiedGroups = new HashMap<String, String>();
+	private static IntegrityMonitor im;
+	private static BackUpMonitor bm;
+	private static  String resourceName = null;
+	private List<String> groupIDs = null; 
+	private List<String> artifactIDs= null; //"test"
+	private Map<String,Integer> names= null; // "Rules"
+	private String defaultName = null;
+	private String repID = null; // "ecomp_policy-3rd-party"
+	private String repName = null; // "d2policy-snapshots"
+	private String repURL= null; 
+	private String repUserName = null;
+	private ArrayList<ControllerPOJO> controllers; 
+	private HashMap<String,String> versions = new HashMap<String, String>();
+	private String repPassword = null;
+	private String policyKeyID = null;
+	private List<File> matchingList = null;
+	private boolean createFlag = false;
+	private String uebList = null;
+	private String pubTopic = null;
+	private PublisherBuilder pubBuilder = null;
+	private Long uebDelay = Long.parseLong("5000");
+	private static String brmsdependencyversion = null;
+
+	public BRMSPush(String propertiesFile, BackUpHandler handler) throws Exception{
+		Properties config = new Properties();
+		Path file = Paths.get(propertiesFile);
+		if(Files.notExists(file)){
+			logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE+"Config File doesn't Exist in the specified Path " + file.toString());
+			throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE+"Config File doesn't Exist in the specified Path " + file.toString());
+		}else{
+			if(file.toString().endsWith(".properties")){
+				InputStream in;
+				in = new FileInputStream(file.toFile());
+				config.load(in);
+				// Grab the Properties. 
+				defaultName = config.getProperty("defaultName").replaceAll(" ", "");
+				if(defaultName==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "defaultName property is missing from the property file");
+				}
+				repID = config.getProperty("repositoryID").replaceAll(" ", "");
+				if(repID==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryID property is missing from the property file ");
+				}
+				repName = config.getProperty("repositoryName").replaceAll(" ", "");
+				if(repName==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryName property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryName property is missing from the property file ");
+				}
+				repURL = config.getProperty("repositoryURL").replaceAll(" ", "");
+				if(repURL==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "repositoryURL property is missing from the property file ");
+				}
+				repUserName = config.getProperty("repositoryUsername").trim();
+				repPassword = config.getProperty("repositoryPassword").trim();
+				if(repUserName==null || repPassword==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "repostoryUserName and respositoryPassword properties are required.");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "repostoryUserName and respositoryPassword properties are required.");
+				}
+				policyKeyID = config.getProperty("policyKeyID").replaceAll(" ", "");
+				if(policyKeyID==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "policyKeyID property is missing from the property file ");
+				}
+				brmsdependencyversion = config.getProperty("brms.dependency.version").replaceAll(" ", "");
+				if(brmsdependencyversion==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "brmsdependencyversion property is missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "brmsdependencyversion property is missing from the property file ");
+				}
+				readGroups(config);
+				logger.info("Trying to set up IntegrityMonitor");
+				try {
+					logger.info("Trying to set up IntegrityMonitor");
+					resourceName = config.getProperty("RESOURCE_NAME").replaceAll(" ", "");;
+					if(resourceName==null){
+						logger.warn("RESOURCE_NAME is missing setting default value. ");
+						resourceName = "brmsgw_pdp01";
+					}
+					im = IntegrityMonitor.getInstance(resourceName, config);
+				} catch (Exception e) {
+					logger.error("Error starting Integerity Monitor: " + e);
+				}
+				logger.info("Trying to set up BackUpMonitor");
+				try {
+					bm = BackUpMonitor.getInstance(BackUpMonitor.ResourceNode.BRMS.toString(), resourceName, config, handler);
+				} catch (Exception e) {
+					logger.error("Error starting BackUpMonitor: " + e);
+				}
+				// Setting up the Publisher for UEB
+				uebList = config.getProperty("UEB_URL").trim();
+				pubTopic = config.getProperty("UEB_TOPIC").trim();
+				String apiKey = config.getProperty("UEB_API_KEY");
+				String apiSecret = config.getProperty("UEB_API_SECRET");
+				if(uebList==null || pubTopic==null){
+					logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
+					throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "UEB properties are missing from the property file ");
+				} 
+				pubBuilder = new CambriaClientBuilders.PublisherBuilder();
+				pubBuilder.usingHosts(uebList)
+				.onTopic(pubTopic);
+				if(apiKey!=null && !apiKey.isEmpty() && 
+						apiSecret!=null && !apiSecret.isEmpty()) {
+					apiKey= apiKey.trim();
+					apiSecret = apiSecret.trim();
+					pubBuilder.authenticatedBy(apiKey, apiSecret);
+				}
+				String uDelay = config.getProperty("UEB_DELAY");
+				if(uDelay!=null && !uDelay.isEmpty()){
+					uDelay = uDelay.trim();
+					try{
+						uebDelay = Long.parseLong(uDelay);
+					}catch (NumberFormatException e){
+						logger.error("UEB_DELAY not a long format number" + e);
+					}
+				}
+			}
+		}
+	}
+
+	/**
+	 * Will Initialize the variables required for BRMSPush. 
+	 */
+	public void initiate() {
+		modifiedGroups =  new HashMap<String, String>();
+		controllers = new ArrayList<ControllerPOJO>();
+		try {
+			bm.updateNotification();
+		} catch (Exception e) {
+			logger.error("Error while updating Notification: "  + e.getMessage());
+		}
+	}
+
+	/**
+	 * Will Add rules to projects. Creates necessary folders if required. 
+	 */
+	public void addRule(String name, String rule, Map<String, String> responseAttributes) {
+		// 1 check the response Attributes and determine if this belongs to any projects. 
+		// 2 if not create folder // new File("Projects\\test").mkdirs();
+		// 3 create pom. 
+		// 4 copy the rule. 
+		// 5 store the groups that have been updated. 
+		String kSessionName=null;
+		String selectedName = null;
+
+		if(!responseAttributes.isEmpty()){
+			// Pick selected Value
+			for(String key: responseAttributes.keySet()){
+				if(key.equals(policyKeyID)){
+					selectedName = responseAttributes.get(key);
+				}
+				//kmodule configurations
+				else if (key.equals("kSessionName")){
+					kSessionName=responseAttributes.get(key);
+				}
+			}
+
+		}
+		// If no Match then pick Default. 
+		if(selectedName==null){
+			selectedName = defaultName;
+		}
+		if(names.containsKey(selectedName)){
+			//If the key is not got as parameters set by the user, setting the default value for kSessionName as closedLoop
+			if(kSessionName==null){
+				if(selectedName==defaultName){
+					kSessionName="closedloop";
+				}else{
+					kSessionName= selectedName;
+				}
+			}
+			// create directories if missing.
+			createProject(projectsLocation+File.separator+getArtifactID(selectedName)+File.separator+"src"+File.separator+"main"+File.separator+"resources",kSessionName);
+			copyDataToFile(projectsLocation+File.separator+getArtifactID(selectedName)+File.separator+"src"+File.separator+"main"+File.separator+"resources"+File.separator+"rules"+File.separator+name+".drl", rule);
+			addModifiedGroup(selectedName, "update"); // Will check for Create Later after generating the Pom. 
+		}
+	}
+
+	/**
+	 * Will Push policies to the PolicyRepo. 
+	 * 
+	 * @param notificationType <String> type of notification Type. 
+	 */
+	public void pushRules(){
+		// Check how many groups have been updated. 
+		// Invoke their Maven process.
+		try {
+			im.startTransaction();
+		} catch (AdministrativeStateException e) {
+			logger.error("Error while starting Transaction " + e);
+		} catch (Exception e) {
+			logger.error("Error while starting Transaction " + e);
+		}
+		if(!modifiedGroups.isEmpty()){
+			Boolean flag = false;
+			for(String group: modifiedGroups.keySet()){
+				try{
+					InvocationRequest request = new DefaultInvocationRequest();
+					createPom(group);
+					request.setPomFile(new File(projectsLocation+File.separator+getArtifactID(group)+File.separator+"pom.xml"));
+					request.setGoals(Arrays.asList(goals));
+					Invoker invoker = new DefaultInvoker();
+					InvocationResult result = invoker.execute(request);
+					if(result.getExecutionException()!=null){
+						logger.error(result.getExecutionException());
+					}else if(result.getExitCode()!=0){
+						logger.error("Maven Invocation failure..!");
+					}
+					if(result.getExitCode()==0){
+						logger.info("Build Completed..!");
+						if (createFlag) {
+                            addNotification(group, "create");
+                        }else{
+                            addNotification(group, modifiedGroups.get(group));
+                        }
+                        flag = true;
+					}
+				}catch(Exception e){
+					logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW+"Maven Invocation issue for "+getArtifactID(group) + e.getMessage());
+				}
+			}
+			if(flag){
+				sendNotification(controllers);
+	        }
+		}
+		im.endTransaction();
+	}
+
+	/**
+	 * Removes a Rule from Rule Projects. 
+	 */
+	public void removeRule(String name){
+		File file = new File(projectsLocation);
+		matchingList = new ArrayList<File>();
+		searchFile(file,name);
+		for(File matchingFile: matchingList){
+			if(matchingFile.delete()){
+				logger.info("Deleted File.. " + matchingFile.getAbsolutePath());
+				String groupName = getName(matchingFile.toString());
+				String ruleFolder= projectsLocation+File.separator+getArtifactID(groupName)+File.separator+"src"+File.separator+"main"+File.separator+"resources"+File.separator+"rules";
+				if(new File(ruleFolder).listFiles().length==0){
+					removedRuleModifiedGroup(groupName);
+				}else{
+					addModifiedGroup(groupName, "update"); // This is an update in terms of PDPD. 
+				}
+			}
+		}
+	}
+
+	private void addModifiedGroup(String controllerName, String operation) {
+		 modifiedGroups.put(controllerName, operation);
+	}
+
+	private void addNotification(String controllerName, String operation) {
+		ControllerPOJO controllerPOJO = new ControllerPOJO();
+		controllerPOJO.setName(controllerName);
+		controllerPOJO.setOperation(operation);
+		HashMap<String, String> drools = new HashMap<String, String>();
+		drools.put("groupId", getGroupID(controllerName));
+		drools.put("artifactId", getArtifactID(controllerName));
+		drools.put("version", versions.get(controllerName));
+		controllerPOJO.setDrools(drools);
+		controllers.add(controllerPOJO);
+		try {
+			logger.debug("Notification added: "
+					+ PolicyUtils.objectToJsonString(controllerPOJO));
+		} catch (JsonProcessingException e) {
+			logger.error(XACMLErrorConstants.ERROR_SCHEMA_INVALID
+					+ "Json Processing Error " + e);
+		}
+	}
+
+	private void removedRuleModifiedGroup(String controllerName){
+		// This will be sending Notification to PDPD directly to Lock
+		ControllerPOJO controllerPOJO = new ControllerPOJO();
+		controllerPOJO.setName(controllerName);
+		controllerPOJO.setOperation("lock");
+		List<ControllerPOJO> controllers = new ArrayList<ControllerPOJO>();
+		controllers.add(controllerPOJO);
+		sendNotification(controllers);
+	}
+
+	private void sendNotification(List<ControllerPOJO> controllers){
+		NotificationPOJO notification = new NotificationPOJO();
+		String requestId = UUID.randomUUID().toString();
+		logger.info("Generating notification RequestID : " + requestId);
+		notification.setRequestID(requestId);
+		notification.setEntity("controller");
+		notification.setControllers(controllers);
+		try {
+			String notificationJson = PolicyUtils.objectToJsonString(notification);
+			logger.info("Sending Notification :\n" + notificationJson);
+			sendMessage(notificationJson);
+		} catch (IOException | GeneralSecurityException | InterruptedException e) {
+			logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while sending notification to PDP-D " + e.getMessage());
+		}
+	}
+
+	private void sendMessage(String message) throws IOException, GeneralSecurityException, InterruptedException {
+		// Sending Message through UEB interface.
+		CambriaBatchingPublisher pub = pubBuilder.build();
+		pub.send( "MyPartitionKey", message);
+		logger.debug("Message Published on UEB :" + uebList + "for Topic: " + pubTopic);
+		Thread.sleep(uebDelay);
+		pub.close();
+	}
+
+	private void searchFile(File file, String name) {
+		if(file.isDirectory()){
+			logger.info("Searching Directory..." + file.getAbsolutePath());
+			if(file.canRead()){
+				for(File temp: file.listFiles()){
+					if(temp.isDirectory()){
+						// Recursive search. 
+						searchFile(temp, name);
+					}else{
+						if(temp.getName().equals(name+".drl")){
+							matchingList.add(temp);
+						}
+					}
+				}
+			}
+		}
+	}
+
+	private void createPom(String name){
+		Model model = new Model();
+		model.setModelVersion("4.0.0");
+		model.setGroupId(getGroupID(name));
+		model.setArtifactId(getArtifactID(name));
+		model.setVersion(incrementVersion(name));
+		model.setName(name);
+		DistributionManagement distributionManagement = new DistributionManagement();
+		DeploymentRepository repository = new DeploymentRepository();
+		repository.setId(repID);
+		repository.setName(repName);
+		repository.setUrl(repURL);
+		distributionManagement.setRepository(repository);
+		model.setDistributionManagement(distributionManagement);
+		// Depenendency Mangement goes here. 
+		List<Dependency> dependencyList= new ArrayList<Dependency>();
+
+		String version= StringEscapeUtils.escapeJava(brmsdependencyversion);
+
+		Dependency demoDependency = new Dependency();
+		demoDependency.setGroupId("org.openecomp.policy.drools-applications");
+		demoDependency.setArtifactId("demo");
+		demoDependency.setVersion(version);
+		dependencyList.add(demoDependency);
+
+		Dependency controlloopDependency = new Dependency();
+		controlloopDependency.setGroupId("org.openecomp.policy.drools-applications");
+		controlloopDependency.setArtifactId("controlloop");
+		controlloopDependency.setVersion(version);
+		dependencyList.add(controlloopDependency);
+
+		Dependency restDependency = new Dependency();
+		restDependency.setGroupId("org.openecomp.policy.drools-applications");
+		restDependency.setArtifactId("rest");
+		restDependency.setVersion(version);
+		dependencyList.add(restDependency);
+
+		Dependency appcDependency = new Dependency();
+		appcDependency.setGroupId("org.openecomp.policy.drools-applications");
+		appcDependency.setArtifactId("appc");
+		appcDependency.setVersion(version);
+		dependencyList.add(appcDependency);
+
+		Dependency aaiDependency = new Dependency();
+		aaiDependency.setGroupId("org.openecomp.policy.drools-applications");
+		aaiDependency.setArtifactId("aai");
+		aaiDependency.setVersion(version);
+		dependencyList.add(aaiDependency);
+
+		Dependency msoDependency = new Dependency();
+		msoDependency.setGroupId("org.openecomp.policy.drools-applications");
+		msoDependency.setArtifactId("mso");
+		msoDependency.setVersion(version);
+		dependencyList.add(msoDependency);
+
+		Dependency trafficgeneratorDependency = new Dependency();
+		trafficgeneratorDependency.setGroupId("org.openecomp.policy.drools-applications");
+		trafficgeneratorDependency.setArtifactId("trafficgenerator");
+		trafficgeneratorDependency.setVersion(version);	
+		dependencyList.add(trafficgeneratorDependency);
+
+
+		model.setDependencies(dependencyList);
+
+		Writer writer = null;
+		try{
+			writer = WriterFactory.newXmlWriter(new File(projectsLocation+File.separator+getArtifactID(name)+File.separator+"pom.xml"));
+			MavenXpp3Writer pomWriter = new MavenXpp3Writer();
+			pomWriter.write(writer, model);
+		}catch(Exception e){
+			logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW+"Error while creating POM for " + getArtifactID(name) + e.getMessage());
+		}finally{
+			IOUtil.close(writer);
+		}
+	}
+
+	private void createProject(String path,String ksessionName){
+		new File(path+File.separator+"rules").mkdirs();
+		new File(path+File.separator+"META-INF").mkdirs();
+		if(!Files.exists(Paths.get(path+File.separator+"META-INF"+File.separator+"kmodule.xml"))){
+			// Hard coding XML for PDP Drools to accept our Rules. 
+			String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "\n"+  
+					"<kmodule xmlns=\"http://jboss.org/kie/6.0.0/kmodule\">" +"\n"+
+					"<kbase name=\"rules\" packages=\"rules\">" + "\n" +
+					"<ksession name=\""+ ksessionName +"\"/>"+ "\n" + 
+					"</kbase></kmodule>";
+			copyDataToFile(path+File.separator+"META-INF"+File.separator+"kmodule.xml", xml);
+		}
+	}
+
+	private void copyDataToFile(String file, String rule) {
+		try{
+			FileUtils.writeStringToFile(new File(file), rule);
+		} catch (Exception e) {
+			logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW+"Error while creating Rule for " + file + e.getMessage());
+		}
+	}
+
+	private void readGroups(Properties config) throws Exception{
+		String[] groupNames = null;
+		if(config.getProperty("groupNames").contains(",")){
+			groupNames = config.getProperty("groupNames").replaceAll(" ", "").split(",");
+		}else{
+			groupNames = new String[]{config.getProperty("groupNames").replaceAll(" ", "")};
+		}
+		if(groupNames==null || groupNames.length==0){
+			logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "groupNames property is missing or empty from the property file ");
+			throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + "groupNames property is missing or empty from the property file ");
+		}
+		names = new HashMap<String, Integer>();
+		groupIDs = new ArrayList<String>();
+		artifactIDs = new ArrayList<String>();
+		for(int counter=0; counter < groupNames.length ;counter++){
+			String name = groupNames[counter];
+			String groupID = config.getProperty(name+".groupID");
+			if(groupID==null){
+				logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name+".groupID property is missing from the property file ");
+				throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + name+".groupID property is missing from the property file ");
+			}
+			String artifactID = config.getProperty(name+".artifactID");
+			if(artifactID==null){
+				logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + name+".artifactID property is missing from the property file ");
+				throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE + name+".artifactID property is missing from the property file ");
+			}
+			// Add to list if we got all 
+			names.put(name, counter);
+			groupIDs.add(groupID);
+			artifactIDs.add(artifactID);
+		}
+	}
+
+	private String getGroupID(String name){
+		return groupIDs.get(names.get(name));
+	}
+
+	private String getArtifactID(String name){
+		return artifactIDs.get(names.get(name));
+	}
+
+	private String getName(String filePath){
+		filePath = filePath.replaceFirst(projectsLocation, "").substring(1);
+		String artifactName = filePath.substring(0, filePath.indexOf(File.separator));
+		for(String name : names.keySet()){
+			if(artifactName.equals(getArtifactID(name))){
+				return name;
+			}
+		}
+		// If not found return default
+		return defaultName;
+	}
+
+	private String incrementVersion(String name) {
+		final NexusClient client = new NexusRestClient();
+		String newVersion = "0.1.0";
+		createFlag = false;
+		try {
+			client.connect(repURL.substring(0, repURL.indexOf(repURL.split(":[0-9]+\\/nexus")[1])), repUserName, repPassword);
+			final NexusArtifact template = new NexusArtifact();
+			template.setGroupId(getGroupID(name));
+			template.setArtifactId(getArtifactID(name));
+			final List<NexusArtifact> artifacts = client.searchByGAV(template);
+			int bigMajor = 0;
+			int bigMinor = 0;
+			for(NexusArtifact artifact : artifacts){
+				String version = artifact.getVersion();
+				int majorVal = Integer.parseInt(version.substring(0, version.indexOf(".")));
+				int minorVal = Integer.parseInt(version.substring(version.indexOf(".")+1,version.lastIndexOf(".")));
+				if(majorVal > bigMajor){
+					bigMajor = majorVal;
+					bigMinor = minorVal;
+				}else if((bigMajor==majorVal) && (minorVal > bigMinor)){
+					bigMinor = minorVal;
+				}
+			}
+			if(bigMinor>=9){
+				bigMajor = bigMajor+1;
+				bigMinor = 0;
+			}else{
+				bigMinor = bigMinor+1;
+			}
+			if(artifacts.isEmpty()){
+				// This is new artifact.
+				newVersion = "0.1.0";
+			}else{
+				newVersion =  bigMajor + "." + bigMinor + artifacts.get(0).getVersion().substring(artifacts.get(0).getVersion().lastIndexOf("."));
+			}
+		} catch (NexusClientException | NexusConnectionException | NullPointerException e) {
+			logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "version number increment failed will be using default version " +e.getMessage());
+		} finally {
+			try {
+				client.disconnect();
+			} catch (NexusClientException | NexusConnectionException e) {
+				logger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "failed to disconnect Connection from Nexus." +e.getMessage());
+			}
+		}
+		if(newVersion.equals("0.1.0")){
+			createFlag = true;
+		}
+		versions.put(name, newVersion);
+		logger.info("Controller: " + name + "is on version: "+ newVersion);
+		return newVersion;
+	}
+
+	// Return BackUpMonitor 
+	public static BackUpMonitor getBackUpMonitor(){
+		return bm;
+	}
+}
diff --git a/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/ControllerPOJO.java b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/ControllerPOJO.java
new file mode 100644
index 000000000..546925bdf
--- /dev/null
+++ b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/ControllerPOJO.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.openecomp.policy.brmsInterface;
+
+import java.util.Map;
+
+/**
+ * POJO for controller information. 
+ * 
+ */
+public class ControllerPOJO {
+	private String name;
+	private Map<String,String> drools;
+	private String operation;
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public Map<String,String> getDrools() {
+		return drools;
+	}
+	public void setDrools(Map<String,String> drools) {
+		this.drools = drools;
+	}
+	public String getOperation() {
+		return operation;
+	}
+	public void setOperation(String operation) {
+		this.operation = operation;
+	}
+}
+
diff --git a/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/NotificationPOJO.java b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/NotificationPOJO.java
new file mode 100644
index 000000000..116a7b41f
--- /dev/null
+++ b/BRMSGateway/src/main/java/org/openecomp/policy/brmsInterface/NotificationPOJO.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP Policy Engine
+ * ================================================================================
+ * 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.openecomp.policy.brmsInterface;
+
+import java.util.List;
+
+/**
+ * This POJO will be transformed to JSON for Notification Purposes.  
+ * 
+ */
+public class NotificationPOJO {
+	private String requestID;
+	private String entity;
+	private List<ControllerPOJO> controllers;
+	public String getRequestID() {
+		return requestID;
+	}
+	public void setRequestID(String requestID) {
+		this.requestID = requestID;
+	}
+	public String getEntity() {
+		return entity;
+	}
+	public void setEntity(String entity) {
+		this.entity = entity;
+	}
+	public List<ControllerPOJO> getControllers() {
+		return controllers;
+	}
+	public void setControllers(List<ControllerPOJO> controllers) {
+		this.controllers = controllers;
+	}
+	
+}