Reduce tech debt in policy-management

Changes to reduce tech debt in the policy-management module.

Issue-ID: POLICY-463
Change-Id: I41f6b66d25a805706e5c9ed2cef2eda256153a37
Signed-off-by: Magnusen, Drew (dm741q) <dm741q@att.com>

11 files changed, 189 insertions, 118 deletions

diff --git a/policy-management/src/main/java/org/onap/policy/drools/controller/internal/MavenDroolsController.java b/policy-management/src/main/java/org/onap/policy/drools/controller/internal/MavenDroolsController.java
index 9689776c..8a0073c0 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/controller/internal/MavenDroolsController.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/controller/internal/MavenDroolsController.java
@@ -100,12 +100,12 @@ public class MavenDroolsController implements DroolsController {
 	/**
 	 * recent source events processed
 	 */
-	protected final CircularFifoQueue<Object> recentSourceEvents = new CircularFifoQueue<Object>(10);
+	protected final CircularFifoQueue<Object> recentSourceEvents = new CircularFifoQueue<>(10);
 	
 	/**
 	 * recent sink events processed
 	 */
-	protected final CircularFifoQueue<String> recentSinkEvents = new CircularFifoQueue<String>(10);
+	protected final CircularFifoQueue<String> recentSinkEvents = new CircularFifoQueue<>(10);
 	
 	/**
 	 * original Drools Model/Rules classloader hash
diff --git a/policy-management/src/main/java/org/onap/policy/drools/controller/internal/NullDroolsController.java b/policy-management/src/main/java/org/onap/policy/drools/controller/internal/NullDroolsController.java
index 2c4e40be..6dd542c3 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/controller/internal/NullDroolsController.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/controller/internal/NullDroolsController.java
@@ -158,7 +158,7 @@ public class NullDroolsController implements DroolsController {
 	@Override
 	public Map<String, Integer> factClassNames(String sessionName) 
 		   throws IllegalArgumentException {
-		return new HashMap<String,Integer>();
+		return new HashMap<>();
 	}
 
 	@Override
diff --git a/policy-management/src/main/java/org/onap/policy/drools/persistence/FileSystemPersistence.java b/policy-management/src/main/java/org/onap/policy/drools/persistence/FileSystemPersistence.java
index 905e50c2..b436ef97 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/persistence/FileSystemPersistence.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/persistence/FileSystemPersistence.java
@@ -80,13 +80,15 @@ public class FileSystemPersistence implements SystemPersistence {
 
   @Override
   public void setConfigurationDir(String configDir) {
-    if (configDir == null) {
-      configDir = DEFAULT_CONFIGURATION_DIR;
+    String tempConfigDir = configDir;
+    
+    if (tempConfigDir == null) {
+        tempConfigDir = DEFAULT_CONFIGURATION_DIR;
       this.configurationDirectory = Paths.get(DEFAULT_CONFIGURATION_DIR);
     }
 
-    if (!configDir.equals(DEFAULT_CONFIGURATION_DIR))
-      this.configurationDirectory = Paths.get(configDir);
+    if (!tempConfigDir.equals(DEFAULT_CONFIGURATION_DIR))
+      this.configurationDirectory = Paths.get(tempConfigDir);
 
     if (Files.notExists(this.configurationDirectory)) {
       try {
diff --git a/policy-management/src/main/java/org/onap/policy/drools/protocol/coders/JsonProtocolFilter.java b/policy-management/src/main/java/org/onap/policy/drools/protocol/coders/JsonProtocolFilter.java
index 0a52d254..12d0ffe5 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/protocol/coders/JsonProtocolFilter.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/protocol/coders/JsonProtocolFilter.java
@@ -197,7 +197,7 @@ public class JsonProtocolFilter {
 			for (FilterRule filter: rules) {
 				if (filter.regex == null || 
 					filter.regex.isEmpty() ||  
-					filter.regex.equals(".*")) {
+					".*".equals(filter.regex)) {
 					
 					// Only check for presence
 					if (!event.has(filter.name)) {
diff --git a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/ControllerConfiguration.java b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/ControllerConfiguration.java
index b0b8b504..845c4944 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/ControllerConfiguration.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/ControllerConfiguration.java
@@ -198,25 +198,13 @@ public class ControllerConfiguration {
     protected boolean declaredProperty(String name, Object value) {
         switch (name) {
             case "name":
-                if (value instanceof String) {
-                    setName(((String) value));
-                } else {
-                    throw new IllegalArgumentException(("property \"name\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetName(value);
                 return true;
             case "operation":
-                if (value instanceof String) {
-                    setOperation(((String) value));
-                } else {
-                    throw new IllegalArgumentException(("property \"operation\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetOperation(value);
                 return true;
             case "drools":
-                if (value instanceof DroolsConfiguration) {
-                    setDrools(((DroolsConfiguration) value));
-                } else {
-                    throw new IllegalArgumentException(("property \"drools\" is of type \"org.onap.policy.drools.protocol.configuration.Drools\", but got "+ value.getClass().toString()));
-                }
+                callSetDrools(value);
                 return true;
             default:
                 return false;
@@ -250,13 +238,13 @@ public class ControllerConfiguration {
 
     public void set(String name, Object value) {
         if (!declaredProperty(name, value)) {
-            getAdditionalProperties().put(name, ((Object) value));
+            getAdditionalProperties().put(name, (Object) value);
         }
     }
 
     public ControllerConfiguration with(String name, Object value) {
         if (!declaredProperty(name, value)) {
-            getAdditionalProperties().put(name, ((Object) value));
+            getAdditionalProperties().put(name, (Object) value);
         }
         return this;
     }
@@ -277,5 +265,29 @@ public class ControllerConfiguration {
         ControllerConfiguration rhs = ((ControllerConfiguration) other);
         return new EqualsBuilder().append(name, rhs.name).append(operation, rhs.operation).append(drools, rhs.drools).append(additionalProperties, rhs.additionalProperties).isEquals();
     }
+    
+    public void callSetName(Object value) {
+        if (value instanceof String) {
+            setName((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"name\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }
+    }
+    
+    public void callSetOperation(Object value) {
+        if (value instanceof String) {
+            setOperation((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"operation\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }
+    }
+    
+    public void callSetDrools(Object value) {
+        if (value instanceof DroolsConfiguration) {
+            setDrools((DroolsConfiguration) value);
+        } else {
+            throw new IllegalArgumentException("property \"drools\" is of type \"org.onap.policy.drools.protocol.configuration.Drools\", but got "+ value.getClass().toString());
+        }
+    }
 
 }
diff --git a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/DroolsConfiguration.java b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/DroolsConfiguration.java
index 4c672e7b..e822d88e 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/DroolsConfiguration.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/DroolsConfiguration.java
@@ -196,25 +196,13 @@ public class DroolsConfiguration {
     protected boolean declaredProperty(String name, Object value) {
         switch (name) {
             case "artifactId":
-                if (value instanceof String) {
-                    setArtifactId((String) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"artifactId\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetArtifactId(value);
                 return true;
             case "groupId":
-                if (value instanceof String) {
-                    setGroupId((String) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"groupId\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetGroupId(value);
                 return true;
             case "version":
-                if (value instanceof String) {
-                    setVersion((String) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"version\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetVersion(value);
                 return true;
             default:
                 return false;
@@ -275,5 +263,28 @@ public class DroolsConfiguration {
         DroolsConfiguration rhs = ((DroolsConfiguration) other);
         return new EqualsBuilder().append(artifactId, rhs.artifactId).append(groupId, rhs.groupId).append(version, rhs.version).append(additionalProperties, rhs.additionalProperties).isEquals();
     }
+    
+    public void callSetArtifactId(Object value) {
+        if (value instanceof String) {
+            setArtifactId((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"artifactId\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }
+    }
+
+    public void callSetGroupId(Object value) {
+        if (value instanceof String) {
+            setGroupId((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"groupId\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }
+    }
 
+    public void callSetVersion(Object value) {
+        if (value instanceof String) {
+            setVersion((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"version\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }
+    }
 }
diff --git a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/PdpdConfiguration.java b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/PdpdConfiguration.java
index 8d6f9bfd..c7a227b1 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/PdpdConfiguration.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/protocol/configuration/PdpdConfiguration.java
@@ -201,25 +201,13 @@ public class PdpdConfiguration {
 	protected boolean declaredProperty(String name, Object value) {
         switch (name) {
             case "requestID":
-                if (value instanceof String) {
-                    setRequestID((String) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"requestID\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetRequestId(value);
                 return true;
             case "entity":
-                if (value instanceof String) {
-                    setEntity((String) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"entity\" is of type \"java.lang.String\", but got "+ value.getClass().toString()));
-                }
+                callSetEntity(value);
                 return true;
             case "controllers":
-                if (value instanceof List) {
-                    setControllers((List<ControllerConfiguration> ) value);
-                } else {
-                    throw new IllegalArgumentException(("property \"controllers\" is of type \"java.util.List<org.onap.policy.drools.protocol.configuration.Controller>\", but got "+ value.getClass().toString()));
-                }
+                callSetControllers(value);
                 return true;
             default:
                 return false;
@@ -280,5 +268,28 @@ public class PdpdConfiguration {
         PdpdConfiguration rhs = (PdpdConfiguration) other;
         return new EqualsBuilder().append(requestID, rhs.requestID).append(entity, rhs.entity).append(controllers, rhs.controllers).append(additionalProperties, rhs.additionalProperties).isEquals();
     }
+    
+    public void callSetRequestId(Object value) {
+        if (value instanceof String) {
+            setRequestID((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"requestID\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }       
+    }
+    
+    public void callSetEntity(Object value) {
+        if (value instanceof String) {
+            setEntity((String) value);
+        } else {
+            throw new IllegalArgumentException("property \"entity\" is of type \"java.lang.String\", but got "+ value.getClass().toString());
+        }       
+    }
 
+    public void callSetControllers(Object value) {
+        if (value instanceof List) {
+            setControllers((List<ControllerConfiguration> ) value);
+        } else {
+            throw new IllegalArgumentException("property \"controllers\" is of type \"java.util.List<org.onap.policy.drools.protocol.configuration.Controller>\", but got "+ value.getClass().toString());
+        }        
+    }
 }
diff --git a/policy-management/src/main/java/org/onap/policy/drools/server/restful/RestManager.java b/policy-management/src/main/java/org/onap/policy/drools/server/restful/RestManager.java
index 93bdc0b2..25f378a7 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/server/restful/RestManager.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/server/restful/RestManager.java
@@ -1507,15 +1507,15 @@ public class RestManager {
     }
 
     final CodingResult result = new CodingResult();
-    result.decoding = false;
-    result.encoding = false;
-    result.jsonEncoding = null;
+    result.setDecoding(false);
+    result.setEncoding(false);
+    result.setJsonEncoding(null);
 
     Object event;
     try {
       event = EventProtocolCoder.manager.decode(policyController.getDrools().getGroupId(),
           policyController.getDrools().getArtifactId(), topic, json);
-      result.decoding = true;
+      result.setDecoding(true);
     } catch (final Exception e) {
       logger.debug("{}: cannot get policy-controller {} topic {} because of {}", this,
           controllerName, topic, e.getMessage(), e);
@@ -1523,8 +1523,8 @@ public class RestManager {
     }
 
     try {
-      result.jsonEncoding = EventProtocolCoder.manager.encode(topic, event);
-      result.encoding = true;
+      result.setJsonEncoding(EventProtocolCoder.manager.encode(topic, event));
+      result.setEncoding(true);
     } catch (final Exception e) {
       // continue so to propagate decoding results ..
       logger.debug("{}: cannot encode for policy-controller {} topic {} because of {}", this,
@@ -1978,15 +1978,15 @@ public class RestManager {
   @ApiOperation(value = "all active loggers", responseContainer = "List")
   @ApiResponses(value = {@ApiResponse(code = 500, message = "logging misconfiguration")})
   public Response loggers() {
-    final List<String> names = new ArrayList<String>();
+    final List<String> names = new ArrayList<>();
     if (!(LoggerFactory.getILoggerFactory() instanceof LoggerContext)) {
       logger.warn("The SLF4J logger factory is not configured for logback");
       return Response.status(Status.INTERNAL_SERVER_ERROR).entity(names).build();
     }
 
     final LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
-    for (final Logger logger : context.getLoggerList()) {
-      names.add(logger.getName());
+    for (final Logger lgr : context.getLoggerList()) {
+      names.add(lgr.getName());
     }
 
     return Response.status(Status.OK).entity(names).build();
@@ -2006,12 +2006,12 @@ public class RestManager {
     }
 
     final LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
-    final ch.qos.logback.classic.Logger logger = context.getLogger(loggerName);
-    if (logger == null) {
+    final ch.qos.logback.classic.Logger lgr = context.getLogger(loggerName);
+    if (lgr == null) {
       return Response.status(Status.NOT_FOUND).build();
     }
 
-    final String loggerLevel = (logger.getLevel() != null) ? logger.getLevel().toString() : "";
+    final String loggerLevel = (lgr.getLevel() != null) ? lgr.getLevel().toString() : "";
     return Response.status(Status.OK).entity(loggerLevel).build();
   }
 
@@ -2081,27 +2081,59 @@ public class RestManager {
      * serialized output
      */
 
-    public String jsonEncoding;
+    private String jsonEncoding;
     /**
      * encoding result
      */
 
-    public Boolean encoding;
+    private Boolean encoding;
 
     /**
      * decoding result
      */
-    public Boolean decoding;
+    private Boolean decoding;
+
+    public String getJsonEncoding() {
+        return jsonEncoding;
+    }
+
+    public void setJsonEncoding(String jsonEncoding) {
+        this.jsonEncoding = jsonEncoding;
+    }
+
+    public Boolean getEncoding() {
+        return encoding;
+    }
+
+    public void setEncoding(Boolean encoding) {
+        this.encoding = encoding;
+    }
+
+    public Boolean getDecoding() {
+        return decoding;
+    }
+
+    public void setDecoding(Boolean decoding) {
+        this.decoding = decoding;
+    }
   }
 
   /**
    * Generic Error Reporting class
    */
   public static class Error {
-    public String error;
+    private String error;
 
     public Error(String error) {
-      this.error = error;
+      this.setError(error);
+    }
+
+    public String getError() {
+        return error;
+    }
+
+    public void setError(String error) {
+        this.error = error;
     }
   }
 
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyControllerFactory.java b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyControllerFactory.java
index d0b625d7..8c188c0b 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyControllerFactory.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyControllerFactory.java
@@ -349,18 +349,19 @@ class IndexedPolicyControllerFactory implements PolicyControllerFactory {
 	 * @throws IllegalArgumentException
 	 */
 	protected void unmanage(PolicyController controller) throws IllegalArgumentException {
-		if (controller == null) {
+	    PolicyController tempController = controller;
+		if (tempController == null) {
 			throw new IllegalArgumentException("Invalid Controller");
 		}
 		
 		synchronized(this) {
-			if (!this.policyControllers.containsKey(controller.getName())) {
+			if (!this.policyControllers.containsKey(tempController.getName())) {
 				return;
 			}
-			controller = this.policyControllers.remove(controller.getName());
+			tempController = this.policyControllers.remove(tempController.getName());
 			
-			String coordinates = toKey(controller.getDrools().getGroupId(),
-                                       controller.getDrools().getArtifactId());
+			String coordinates = toKey(tempController.getDrools().getGroupId(),
+			        tempController.getDrools().getArtifactId());
 			this.coordinates2Controller.remove(coordinates);
 		}
 	}
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
index 583deacc..c90d8bea 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
@@ -387,7 +387,7 @@ class PolicyEngineManager implements PolicyEngine {
   /**
    * Policy Engine HTTP Servers
    */
-  protected List<HttpServletServer> httpServers = new ArrayList<HttpServletServer>();
+  protected List<HttpServletServer> httpServers = new ArrayList<>();
 
   /**
    * gson parser to decode configuration requests
@@ -459,7 +459,7 @@ class PolicyEngineManager implements PolicyEngine {
         TELEMETRY_SERVER_DEFAULT_HOST);
     defaultConfig.put(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "."
         + TELEMETRY_SERVER_DEFAULT_NAME + PolicyProperties.PROPERTY_HTTP_PORT_SUFFIX,
-        "" + TELEMETRY_SERVER_DEFAULT_PORT);
+        "" +  Integer.toString(TELEMETRY_SERVER_DEFAULT_PORT));
     defaultConfig.put(
         PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + TELEMETRY_SERVER_DEFAULT_NAME
             + PolicyProperties.PROPERTY_HTTP_REST_PACKAGES_SUFFIX,
@@ -534,24 +534,25 @@ class PolicyEngineManager implements PolicyEngine {
   public synchronized PolicyController createPolicyController(String name, Properties properties)
       throws IllegalArgumentException, IllegalStateException {
 
+    String tempName = name;
     // check if a PROPERTY_CONTROLLER_NAME property is present
     // if so, override the given name
 
     final String propertyControllerName =
         properties.getProperty(PolicyProperties.PROPERTY_CONTROLLER_NAME);
     if (propertyControllerName != null && !propertyControllerName.isEmpty()) {
-      if (!propertyControllerName.equals(name)) {
-        throw new IllegalStateException("Proposed name (" + name + ") and properties name ("
+      if (!propertyControllerName.equals(tempName)) {
+        throw new IllegalStateException("Proposed name (" + tempName + ") and properties name ("
             + propertyControllerName + ") don't match");
       }
-      name = propertyControllerName;
+      tempName = propertyControllerName;
     }
 
     PolicyController controller;
     for (final PolicyControllerFeatureAPI controllerFeature : PolicyControllerFeatureAPI.providers
         .getList()) {
       try {
-        controller = controllerFeature.beforeCreate(name, properties);
+        controller = controllerFeature.beforeCreate(tempName, properties);
         if (controller != null)
           return controller;
       } catch (final Exception e) {
@@ -560,7 +561,7 @@ class PolicyEngineManager implements PolicyEngine {
       }
     }
 
-    controller = PolicyController.factory.build(name, properties);
+    controller = PolicyController.factory.build(tempName, properties);
     if (this.isLocked())
       controller.lock();
 
@@ -589,22 +590,8 @@ class PolicyEngineManager implements PolicyEngine {
     final String entity = config.getEntity();
 
     switch (entity) {
-      case PdpdConfiguration.CONFIG_ENTITY_CONTROLLER:
-        /* only this one supported for now */
-        final List<ControllerConfiguration> configControllers = config.getControllers();
-        if (configControllers == null || configControllers.isEmpty()) {
-          if (logger.isInfoEnabled())
-            logger.info("No controller configuration provided: " + config);
-          return false;
-        }
-        final List<PolicyController> policyControllers =
-            this.updatePolicyControllers(config.getControllers());
-        if (policyControllers == null || policyControllers.isEmpty())
-          return false;
-        else if (policyControllers.size() == configControllers.size())
-          return true;
-
-        return false;
+      case PdpdConfiguration.CONFIG_ENTITY_CONTROLLER:          
+        return controllerConfig(config);
       default:
         final String msg = "Configuration Entity is not supported: " + entity;
         logger.warn(msg);
@@ -617,7 +604,7 @@ class PolicyEngineManager implements PolicyEngine {
       List<ControllerConfiguration> configControllers)
       throws IllegalArgumentException, IllegalStateException {
 
-    final List<PolicyController> policyControllers = new ArrayList<PolicyController>();
+    final List<PolicyController> policyControllers = new ArrayList<>();
     if (configControllers == null || configControllers.isEmpty()) {
       if (logger.isInfoEnabled())
         logger.info("No controller configuration provided: " + configControllers);
@@ -677,14 +664,14 @@ class PolicyEngineManager implements PolicyEngine {
         logger.warn("controller " + controllerName + " does not exist.  "
             + "Attempting recovery from disk");
 
-        final Properties properties =
+        final Properties controllerProperties =
             SystemPersistence.manager.getControllerProperties(controllerName);
 
         /*
          * returned properties cannot be null (per implementation) assert (properties != null)
          */
 
-        if (properties == null) {
+        if (controllerProperties == null) {
           throw new IllegalArgumentException(controllerName + " is invalid");
         }
 
@@ -695,11 +682,11 @@ class PolicyEngineManager implements PolicyEngine {
          * try to bring up bad controller in brainless mode, after having it working, apply the new
          * create/update operation.
          */
-        properties.setProperty(PolicyProperties.RULES_GROUPID, DroolsController.NO_GROUP_ID);
-        properties.setProperty(PolicyProperties.RULES_ARTIFACTID, DroolsController.NO_ARTIFACT_ID);
-        properties.setProperty(PolicyProperties.RULES_VERSION, DroolsController.NO_VERSION);
+        controllerProperties.setProperty(PolicyProperties.RULES_GROUPID, DroolsController.NO_GROUP_ID);
+        controllerProperties.setProperty(PolicyProperties.RULES_ARTIFACTID, DroolsController.NO_ARTIFACT_ID);
+        controllerProperties.setProperty(PolicyProperties.RULES_VERSION, DroolsController.NO_VERSION);
 
-        policyController = PolicyEngine.manager.createPolicyController(controllerName, properties);
+        policyController = PolicyEngine.manager.createPolicyController(controllerName, controllerProperties);
 
         /* fall through to do brain update operation */
       }
@@ -1140,7 +1127,7 @@ class PolicyEngineManager implements PolicyEngine {
   @JsonProperty("controllers")
   @Override
   public List<String> getPolicyControllerIds() {
-    final List<String> controllerNames = new ArrayList<String>();
+    final List<String> controllerNames = new ArrayList<>();
     for (final PolicyController controller : PolicyController.factory.inventory()) {
       controllerNames.add(controller.getName());
     }
@@ -1173,7 +1160,7 @@ class PolicyEngineManager implements PolicyEngine {
 
   @Override
   public List<String> getFeatures() {
-    final List<String> features = new ArrayList<String>();
+    final List<String> features = new ArrayList<>();
     for (final PolicyEngineFeatureAPI feature : PolicyEngineFeatureAPI.providers.getList()) {
       features.add(feature.getName());
     }
@@ -1231,12 +1218,12 @@ class PolicyEngineManager implements PolicyEngine {
     if (this.isLocked())
       throw new IllegalStateException("Policy Engine is locked");
 
-    final List<? extends TopicSink> sinks = TopicEndpoint.manager.getTopicSinks(topic);
-    if (sinks == null || sinks.isEmpty() || sinks.size() > 1)
+    final List<? extends TopicSink> topicSinks = TopicEndpoint.manager.getTopicSinks(topic);
+    if (topicSinks == null || topicSinks.isEmpty() || topicSinks.size() > 1)
       throw new IllegalStateException(
-          "Cannot ensure correct delivery on topic " + topic + ": " + sinks);
+          "Cannot ensure correct delivery on topic " + topic + ": " + topicSinks);
 
-    return this.deliver(sinks.get(0).getTopicCommInfrastructure(), topic, event);
+    return this.deliver(topicSinks.get(0).getTopicCommInfrastructure(), topic, event);
   }
 
   @Override
@@ -1417,10 +1404,7 @@ class PolicyEngineManager implements PolicyEngine {
     for (final PolicyController policyController : this.getPolicyControllers()) {
       try {
         policyController.stop();
-      } catch (final Exception e) {
-        logger.error("{}: cannot deactivate (stop) policy-controller {} because of {}", this,
-            policyController, e.getMessage(), e);
-      } catch (final LinkageError e) {
+      } catch (final Exception | LinkageError e) {
         logger.error("{}: cannot deactivate (stop) policy-controller {} because of {}", this,
             policyController, e.getMessage(), e);
       }
@@ -1437,6 +1421,24 @@ class PolicyEngineManager implements PolicyEngine {
       }
     }
   }
+  
+  public boolean controllerConfig(PdpdConfiguration config) {
+      /* only this one supported for now */
+      final List<ControllerConfiguration> configControllers = config.getControllers();
+      if (configControllers == null || configControllers.isEmpty()) {
+        if (logger.isInfoEnabled())
+          logger.info("No controller configuration provided: " + config);
+        return false;
+      }
+      final List<PolicyController> policyControllers =
+          this.updatePolicyControllers(config.getControllers());
+      if (policyControllers == null || policyControllers.isEmpty())
+        return false;
+      else if (policyControllers.size() == configControllers.size())
+        return true;
+
+      return false;      
+  }
 
   @Override
   public String toString() {
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/internal/AggregatedPolicyController.java b/policy-management/src/main/java/org/onap/policy/drools/system/internal/AggregatedPolicyController.java
index e67e542f..0645bdc5 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/internal/AggregatedPolicyController.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/internal/AggregatedPolicyController.java
@@ -74,7 +74,7 @@ public class AggregatedPolicyController implements PolicyController,
 	 */
 	@JsonIgnore
 	protected final HashMap<String, TopicSink> topic2Sinks =
-		new HashMap<String, TopicSink>();
+		new HashMap<>();
 	
 	/**
 	 * Is this Policy Controller running (alive) ?