Use parameter service in apex

Switch parameter handling in apex to use
the ONAP PF common parameter service

Change-Id: Id318d19c726b18b1a69c630fa81ca7d695355e9c
Issue-ID: POLICY-954
Signed-off-by: liamfallon <liam.fallon@ericsson.com>

16 files changed, 292 insertions, 151 deletions

diff --git a/context/context-management/pom.xml b/context/context-management/pom.xml
index 3826ba6dc..d9d9147e5 100644
--- a/context/context-management/pom.xml
+++ b/context/context-management/pom.xml
@@ -32,6 +32,10 @@
 
     <dependencies>
         <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>common-parameters</artifactId>
+        </dependency>
+        <dependency>
             <groupId>org.onap.policy.apex-pdp.model</groupId>
             <artifactId>context-model</artifactId>
             <version>${project.version}</version>
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java
index 1af13cbea..dba81d321 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java
@@ -22,10 +22,11 @@ package org.onap.policy.apex.context.impl.distribution;
 
 import org.onap.policy.apex.context.ContextException;
 import org.onap.policy.apex.context.Distributor;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.DistributorParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
 import org.onap.policy.apex.model.utilities.Assertions;
+import org.onap.policy.common.parameters.ParameterService;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
 
@@ -51,24 +52,23 @@ public class DistributorFactory {
         Assertions.argumentNotNull(key, ContextException.class, "Parameter \"key\" may not be null");
 
         // Get the class for the distributor using reflection
-        final DistributorParameters distributorParameters = ParameterService.getParameters(DistributorParameters.class);
+        final DistributorParameters distributorParameters = ParameterService
+                        .get(ContextParameterConstants.DISTRIBUTOR_GROUP_NAME);
         final String pluginClass = distributorParameters.getPluginClass();
         Object contextDistributorObject = null;
         try {
             contextDistributorObject = Class.forName(pluginClass).newInstance();
         } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
-            LOGGER.error(
-                    "Apex context distributor class not found for context distributor plugin \"" + pluginClass + "\"",
-                    e);
-            throw new ContextException(
-                    "Apex context distributor class not found for context distributor plugin \"" + pluginClass + "\"",
-                    e);
+            LOGGER.error("Apex context distributor class not found for context distributor plugin \"" + pluginClass
+                            + "\"", e);
+            throw new ContextException("Apex context distributor class not found for context distributor plugin \""
+                            + pluginClass + "\"", e);
         }
 
         // Check the class is a distributor
         if (!(contextDistributorObject instanceof Distributor)) {
             final String returnString = "Specified Apex context distributor plugin class \"" + pluginClass
-                    + "\" does not implement the ContextDistributor interface";
+                            + "\" does not implement the ContextDistributor interface";
             LOGGER.error(returnString);
             throw new ContextException(returnString);
         }
@@ -79,8 +79,8 @@ public class DistributorFactory {
         // Lock and load the context distributor
         contextDistributor.init(key);
 
-        LOGGER.exit(
-                "Distributor factory, key=" + key + ", selected distributor of class " + contextDistributor.getClass());
+        LOGGER.exit("Distributor factory, key=" + key + ", selected distributor of class "
+                        + contextDistributor.getClass());
         return contextDistributor;
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java
index 467d43f9d..19bb3602e 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java
@@ -25,8 +25,9 @@ import java.util.TimerTask;
 
 import org.onap.policy.apex.context.ContextException;
 import org.onap.policy.apex.context.Distributor;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.PersistorParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.ParameterService;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
 
@@ -59,7 +60,8 @@ public class DistributorFlushTimerTask extends TimerTask {
         this.contextDistributor = contextDistributor;
 
         // Set the period for persistence flushing
-        final PersistorParameters persistorParameters = ParameterService.getParameters(PersistorParameters.class);
+        final PersistorParameters persistorParameters = ParameterService
+                        .get(ContextParameterConstants.PERSISTENCE_GROUP_NAME);
         period = persistorParameters.getFlushPeriod();
 
         // Set up the timer
@@ -67,7 +69,7 @@ public class DistributorFlushTimerTask extends TimerTask {
         timer.schedule(this, period, period);
 
         LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushing set up with interval: "
-                + period + "ms");
+                        + period + "ms");
     }
 
     /**
@@ -79,14 +81,14 @@ public class DistributorFlushTimerTask extends TimerTask {
         flushCount++;
 
         LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushing: period=" + period
-                + ": count=" + flushCount);
+                        + ": count=" + flushCount);
         try {
             contextDistributor.flush();
             LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushed: period=" + period
-                    + ": count=" + flushCount);
+                            + ": count=" + flushCount);
         } catch (final ContextException e) {
             LOGGER.error("flush error on context distributor " + contextDistributor.getKey().getID() + ": period="
-                    + period + ": count=" + flushCount, e);
+                            + period + ": count=" + flushCount, e);
         }
     }
 
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java
index f3f4a6240..c45e3bd27 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java
@@ -22,9 +22,10 @@ package org.onap.policy.apex.context.impl.locking;
 
 import org.onap.policy.apex.context.ContextException;
 import org.onap.policy.apex.context.LockManager;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.LockManagerParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.ParameterService;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
 
@@ -48,7 +49,8 @@ public class LockManagerFactory {
     public LockManager createLockManager(final AxArtifactKey key) throws ContextException {
         LOGGER.entry("Lock Manager factory, key=" + key);
 
-        final LockManagerParameters lockManagerParameters = ParameterService.getParameters(LockManagerParameters.class);
+        final LockManagerParameters lockManagerParameters = ParameterService
+                        .get(ContextParameterConstants.LOCKING_GROUP_NAME);
 
         // Get the class for the lock manager using reflection
         Object lockManagerObject = null;
@@ -56,20 +58,18 @@ public class LockManagerFactory {
         try {
             lockManagerObject = Class.forName(pluginClass).newInstance();
         } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
-            LOGGER.error(
-                    "Apex context lock manager class not found for context lock manager plugin \"" + pluginClass + "\"",
-                    e);
-            throw new ContextException(
-                    "Apex context lock manager class not found for context lock manager plugin \"" + pluginClass + "\"",
-                    e);
+            LOGGER.error("Apex context lock manager class not found for context lock manager plugin \"" + pluginClass
+                            + "\"", e);
+            throw new ContextException("Apex context lock manager class not found for context lock manager plugin \""
+                            + pluginClass + "\"", e);
         }
 
         // Check the class is a lock manager
         if (!(lockManagerObject instanceof LockManager)) {
-            LOGGER.error("Specified Apex context lock manager plugin class \"" + pluginClass
-                    + "\" does not implement the LockManager interface");
+            LOGGER.error("Specified Apex context lock manager plugin class \"{}\" does not implement the LockManager interface",
+                            pluginClass);
             throw new ContextException("Specified Apex context lock manager plugin class \"" + pluginClass
-                    + "\" does not implement the LockManager interface");
+                            + "\" does not implement the LockManager interface");
         }
 
         // The context lock manager to return
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java
index af6f922d3..34fa15dcb 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java
@@ -22,10 +22,11 @@ package org.onap.policy.apex.context.impl.persistence;
 
 import org.onap.policy.apex.context.ContextException;
 import org.onap.policy.apex.context.Persistor;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.PersistorParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
 import org.onap.policy.apex.model.utilities.Assertions;
+import org.onap.policy.common.parameters.ParameterService;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
 
@@ -49,7 +50,8 @@ public class PersistorFactory {
         LOGGER.entry("persistor factory, key=" + key);
         Assertions.argumentNotNull(key, ContextException.class, "Parameter \"key\" may not be null");
 
-        final PersistorParameters persistorParameters = ParameterService.getParameters(PersistorParameters.class);
+        final PersistorParameters persistorParameters = ParameterService
+                        .get(ContextParameterConstants.PERSISTENCE_GROUP_NAME);
 
         // Get the class for the persistor using reflection
         Object persistorObject = null;
@@ -58,17 +60,17 @@ public class PersistorFactory {
             persistorObject = Class.forName(pluginClass).newInstance();
         } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
             LOGGER.error("Apex context persistor class not found for context persistor plugin \"" + pluginClass + "\"",
-                    e);
-            throw new ContextException(
-                    "Apex context persistor class not found for context persistor plugin \"" + pluginClass + "\"", e);
+                            e);
+            throw new ContextException("Apex context persistor class not found for context persistor plugin \""
+                            + pluginClass + "\"", e);
         }
 
         // Check the class is a persistor
         if (!(persistorObject instanceof Persistor)) {
-            LOGGER.error("Specified Apex context persistor plugin class \"" + pluginClass
-                    + "\" does not implement the ContextDistributor interface");
+            LOGGER.error("Specified Apex context persistor plugin class \"{}\" does not implement the ContextDistributor interface",
+                            pluginClass);
             throw new ContextException("Specified Apex context persistor plugin class \"" + pluginClass
-                    + "\" does not implement the ContextDistributor interface");
+                            + "\" does not implement the ContextDistributor interface");
         }
 
         // The persistor to return
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java
index 54689e3fb..84025fc25 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java
@@ -22,15 +22,16 @@ package org.onap.policy.apex.context.impl.schema;
 
 import org.onap.policy.apex.context.ContextRuntimeException;
 import org.onap.policy.apex.context.SchemaHelper;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.SchemaHelperParameters;
 import org.onap.policy.apex.context.parameters.SchemaParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
 import org.onap.policy.apex.model.basicmodel.concepts.AxKey;
 import org.onap.policy.apex.model.basicmodel.service.ModelService;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas;
 import org.onap.policy.apex.model.utilities.Assertions;
+import org.onap.policy.common.parameters.ParameterService;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
 
@@ -67,7 +68,7 @@ public class SchemaHelperFactory {
         }
 
         // Get the schema class using the parameter service
-        final SchemaParameters schemaParameters = ParameterService.getParameters(SchemaParameters.class);
+        final SchemaParameters schemaParameters = ParameterService.get(ContextParameterConstants.SCHEMA_GROUP_NAME);
 
         // Get the class for the schema helper from the schema parameters
         final SchemaHelperParameters schemaHelperParameters =
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameterConstants.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameterConstants.java
new file mode 100644
index 000000000..af712706d
--- /dev/null
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameterConstants.java
@@ -0,0 +1,41 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.context.parameters;
+
+/**
+ * This class holds constants used when managing context parameter groups in apex.
+ */
+public abstract class ContextParameterConstants {
+    public static final String MAIN_GROUP_NAME = "CONTEXT_PARAMETERS";
+    public static final String SCHEMA_GROUP_NAME = "CONTEXT_SCHEMA_PARAMETERS";
+    public static final String SCHEMA_HELPER_GROUP_NAME = "CONTEXT_SCHEMA_HELPER_PARAMETERS";
+    public static final String DISTRIBUTOR_GROUP_NAME = "CONTEXT_DISTRIBUTOR_PARAMETERS";
+    public static final String LOCKING_GROUP_NAME = "CONTEXT_LOCKING_PARAMETERS";
+    public static final String PERSISTENCE_GROUP_NAME = "CONTEXT_PERSISTENCE_PARAMETERS";
+
+    /**
+     * Private default constructor to prevent subclassing
+     */
+    private ContextParameterConstants() {
+        // Prevents subclassing
+    }
+
+}
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java
index 8bda76d21..2a109d48f 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java
@@ -20,8 +20,8 @@
 
 package org.onap.policy.apex.context.parameters;
 
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * Bean class to hold parameters for context handling in Apex. This class contains all the context
@@ -43,9 +43,10 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class ContextParameters extends AbstractParameters {
+public class ContextParameters implements ParameterGroup {
     // @formatter:off
     // Plugin Parameters
+    private String                name;
     private DistributorParameters distributorParameters = new DistributorParameters();
     private SchemaParameters      schemaParameters      = new SchemaParameters();
     private LockManagerParameters lockManagerParameters = new LockManagerParameters();
@@ -57,8 +58,10 @@ public class ContextParameters extends AbstractParameters {
      * parameter service.
      */
     public ContextParameters() {
-        super(ContextParameters.class.getCanonicalName());
-        ParameterService.registerParameters(ContextParameters.class, this);
+        super();
+
+        // Set the name for the parameters
+        this.name = ContextParameterConstants.MAIN_GROUP_NAME;
     }
 
     /**
@@ -132,16 +135,26 @@ public class ContextParameters extends AbstractParameters {
     public void setPersistorParameters(final PersistorParameters persistorParameters) {
         this.persistorParameters = persistorParameters;
     }
-
-    /*
-     * (non-Javadoc)
-     *
-     * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString()
-     */
+    
     @Override
     public String toString() {
-        return "ContextParameters [distributorParameters=" + distributorParameters + ", schemaParameters="
-                + schemaParameters + ", lockManagerParameters=" + lockManagerParameters + ", persistorParameters="
-                + persistorParameters + "]";
+        return "ContextParameters [name=" + name + ", distributorParameters=" + distributorParameters
+                        + ", schemaParameters=" + schemaParameters + ", lockManagerParameters=" + lockManagerParameters
+                        + ", persistorParameters=" + persistorParameters + "]";
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java
index cb4c6128e..e3f58cae4 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java
@@ -21,8 +21,8 @@
 package org.onap.policy.apex.context.parameters;
 
 import org.onap.policy.apex.context.impl.distribution.jvmlocal.JVMLocalDistributor;
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * An empty distributor parameter class that may be specialized by context distributor plugins that
@@ -31,11 +31,11 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class DistributorParameters extends AbstractParameters {
+public class DistributorParameters implements ParameterGroup {
     /** The default distributor makes context albums available to all threads in a single JVM. */
     public static final String DEFAULT_DISTRIBUTOR_PLUGIN_CLASS = JVMLocalDistributor.class.getCanonicalName();
 
-    // Plugin class names
+    private String name;
     private String pluginClass = DEFAULT_DISTRIBUTOR_PLUGIN_CLASS;
 
     /**
@@ -43,18 +43,10 @@ public class DistributorParameters extends AbstractParameters {
      * parameter service.
      */
     public DistributorParameters() {
-        super(DistributorParameters.class.getCanonicalName());
-        ParameterService.registerParameters(DistributorParameters.class, this);
-    }
-
-    /**
-     * Constructor to create a distributor parameters instance with the name of a sub class of this
-     * class and register the instance with the parameter service.
-     *
-     * @param parameterClassName the class name of a sub class of this class
-     */
-    public DistributorParameters(final String parameterClassName) {
-        super(parameterClassName);
+        super();
+        
+        // Set the name for the parameters
+        this.name = ContextParameterConstants.DISTRIBUTOR_GROUP_NAME;
     }
 
     /**
@@ -75,13 +67,23 @@ public class DistributorParameters extends AbstractParameters {
         this.pluginClass = pluginClass;
     }
 
-    /*
-     * (non-Javadoc)
-     *
-     * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString()
-     */
     @Override
     public String toString() {
-        return "DistributorParameters [pluginClass=" + pluginClass + "]";
+        return "DistributorParameters [name=" + name + ", pluginClass=" + pluginClass + "]";
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java
index 1aaee2cc7..27fc05a0b 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java
@@ -21,8 +21,8 @@
 package org.onap.policy.apex.context.parameters;
 
 import org.onap.policy.apex.context.impl.locking.jvmlocal.JVMLocalLockManager;
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * An empty lock manager parameter class that may be specialized by context lock manager plugins
@@ -31,13 +31,13 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class LockManagerParameters extends AbstractParameters {
+public class LockManagerParameters implements ParameterGroup {
     /**
      * The default lock manager can lock context album instance across all threads in a single JVM.
      */
     public static final String DEFAULT_LOCK_MANAGER_PLUGIN_CLASS = JVMLocalLockManager.class.getCanonicalName();
 
-    // Plugin class names
+    private String name;
     private String pluginClass = DEFAULT_LOCK_MANAGER_PLUGIN_CLASS;
 
     /**
@@ -45,18 +45,10 @@ public class LockManagerParameters extends AbstractParameters {
      * parameter service.
      */
     public LockManagerParameters() {
-        super(LockManagerParameters.class.getCanonicalName());
-        ParameterService.registerParameters(LockManagerParameters.class, this);
-    }
+        super();
 
-    /**
-     * Constructor to create a lock manager parameters instance with the name of a sub class of this
-     * class and register the instance with the parameter service.
-     *
-     * @param parameterClassName the class name of a sub class of this class
-     */
-    public LockManagerParameters(final String parameterClassName) {
-        super(parameterClassName);
+        // Set the name for the parameters
+        this.name = ContextParameterConstants.LOCKING_GROUP_NAME;
     }
 
     /**
@@ -76,14 +68,24 @@ public class LockManagerParameters extends AbstractParameters {
     public void setPluginClass(final String pluginClass) {
         this.pluginClass = pluginClass;
     }
-
-    /*
-     * (non-Javadoc)
-     *
-     * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString()
-     */
+    
     @Override
     public String toString() {
-        return "LockManagerParameters [pluginClass=" + pluginClass + "]";
+        return "LockManagerParameters [name=" + name + ", pluginClass=" + pluginClass + "]";
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java
index 6fd320001..3616b526e 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java
@@ -20,8 +20,8 @@
 
 package org.onap.policy.apex.context.parameters;
 
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * A persistor parameter class that may be specialized by context persistor plugins that require
@@ -36,7 +36,7 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class PersistorParameters extends AbstractParameters {
+public class PersistorParameters implements ParameterGroup {
     /** The default persistor is a dummy persistor that stubs the Persistor interface. */
     public static final String DEFAULT_PERSISTOR_PLUGIN_CLASS =
             "org.onap.policy.apex.context.impl.persistence.ephemeral.EphemeralPersistor";
@@ -44,7 +44,7 @@ public class PersistorParameters extends AbstractParameters {
     /** Default periodic flushing interval, 5 minutes in milliseconds. */
     public static final long DEFAULT_FLUSH_PERIOD = 300000;
 
-    // Plugin class names
+    private String name;
     private String pluginClass = DEFAULT_PERSISTOR_PLUGIN_CLASS;
 
     // Parameters for flushing
@@ -55,18 +55,10 @@ public class PersistorParameters extends AbstractParameters {
      * parameter service.
      */
     public PersistorParameters() {
-        super(PersistorParameters.class.getCanonicalName());
-        ParameterService.registerParameters(PersistorParameters.class, this);
-    }
+        super();
 
-    /**
-     * Constructor to create a persistor parameters instance with the name of a sub class of this
-     * class and register the instance with the parameter service.
-     *
-     * @param parameterClassName the class name of a sub class of this class
-     */
-    public PersistorParameters(final String parameterClassName) {
-        super(parameterClassName);
+        // Set the name for the parameters
+        this.name = ContextParameterConstants.PERSISTENCE_GROUP_NAME;
     }
 
     /**
@@ -109,13 +101,24 @@ public class PersistorParameters extends AbstractParameters {
         }
     }
 
-    /*
-     * (non-Javadoc)
-     *
-     * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString()
-     */
     @Override
     public String toString() {
-        return "PersistorParameters [pluginClass=" + pluginClass + ", flushPeriod=" + flushPeriod + "]";
+        return "PersistorParameters [name=" + name + ", pluginClass=" + pluginClass + ", flushPeriod=" + flushPeriod
+                        + "]";
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java
index 9ccd431a5..e2bb4d6b9 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java
@@ -20,8 +20,8 @@
 
 package org.onap.policy.apex.context.parameters;
 
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * An empty schema helper parameter class that may be specialized by context schema helper plugins that require plugin
@@ -29,26 +29,15 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class SchemaHelperParameters extends AbstractParameters {
-    // Schema helper plugin class for the schema
+public class SchemaHelperParameters implements ParameterGroup {
+    private String name;
     private String schemaHelperPluginClass;
 
     /**
      * Constructor to create a schema helper parameters instance and register the instance with the parameter service.
      */
     public SchemaHelperParameters() {
-        super(SchemaHelperParameters.class.getCanonicalName());
-        ParameterService.registerParameters(SchemaHelperParameters.class, this);
-    }
-
-    /**
-     * Constructor to create a schema helper parameters instance with the name of a sub class of this class and register
-     * the instance with the parameter service.
-     *
-     * @param parameterClassName the class name of a sub class of this class
-     */
-    public SchemaHelperParameters(final String parameterClassName) {
-        super(parameterClassName);
+        super();
     }
 
     /**
@@ -68,14 +57,24 @@ public class SchemaHelperParameters extends AbstractParameters {
     public void setSchemaHelperPluginClass(final String pluginClass) {
         schemaHelperPluginClass = pluginClass;
     }
-
-    /*
-     * (non-Javadoc)
-     *
-     * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString()
-     */
+    
     @Override
     public String toString() {
-        return "SchemaHelperParameters [schemaHelperPluginClass=" + schemaHelperPluginClass + "]";
+        return "SchemaHelperParameters [name=" + name + ", schemaHelperPluginClass=" + schemaHelperPluginClass + "]";
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
     }
 }
diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java
index 12e203c30..9992b9f3c 100644
--- a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java
+++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java
@@ -24,8 +24,8 @@ import java.util.Map;
 import java.util.TreeMap;
 
 import org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters;
-import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
 
 /**
  * Bean class holding schema parameters for schemas and their helpers. As more than one schema can
@@ -38,10 +38,12 @@ import org.onap.policy.apex.model.basicmodel.service.ParameterService;
  *
  * @author Liam Fallon (liam.fallon@ericsson.com)
  */
-public class SchemaParameters extends AbstractParameters {
+public class SchemaParameters implements ParameterGroup {
     /** The Java schema flavour is always available for use. */
     public static final String DEFAULT_SCHEMA_FLAVOUR = "Java";
 
+    private String name;
+
     // A map of parameters for executors of various logic types
     private Map<String, SchemaHelperParameters> schemaHelperParameterMap;
 
@@ -50,8 +52,10 @@ public class SchemaParameters extends AbstractParameters {
      * parameter service.
      */
     public SchemaParameters() {
-        super(SchemaParameters.class.getCanonicalName());
-        ParameterService.registerParameters(SchemaParameters.class, this);
+        super();
+
+        // Set the name for the parameters
+        this.name = ContextParameterConstants.SCHEMA_GROUP_NAME;
 
         schemaHelperParameterMap = new TreeMap<>();
 
@@ -86,4 +90,19 @@ public class SchemaParameters extends AbstractParameters {
     public SchemaHelperParameters getSchemaHelperParameters(final String schemaFlavour) {
         return schemaHelperParameterMap.get(schemaFlavour);
     }
+    
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    @Override
+    public GroupValidationResult validate() {
+        return new GroupValidationResult(this);
+    }
 }
diff --git a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/ContextAlbumImplTest.java b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/ContextAlbumImplTest.java
index bf363058b..5f2b426bd 100644
--- a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/ContextAlbumImplTest.java
+++ b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/ContextAlbumImplTest.java
@@ -27,6 +27,7 @@ import static org.junit.Assert.fail;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
+import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.onap.policy.apex.context.ContextAlbum;
@@ -35,6 +36,7 @@ import org.onap.policy.apex.context.ContextRuntimeException;
 import org.onap.policy.apex.context.Distributor;
 import org.onap.policy.apex.context.impl.distribution.jvmlocal.JVMLocalDistributor;
 import org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.ContextParameters;
 import org.onap.policy.apex.context.parameters.SchemaParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.ApexRuntimeException;
@@ -42,10 +44,10 @@ import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
 import org.onap.policy.apex.model.basicmodel.concepts.AxConcept;
 import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey;
 import org.onap.policy.apex.model.basicmodel.service.ModelService;
-import org.onap.policy.apex.model.basicmodel.service.ParameterService;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbum;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas;
+import org.onap.policy.common.parameters.ParameterService;
 
 public class ContextAlbumImplTest {
     /**
@@ -56,11 +58,32 @@ public class ContextAlbumImplTest {
         final ContextParameters contextParameters = new ContextParameters();
         contextParameters.getLockManagerParameters()
                         .setPluginClass("org.onap.policy.apex.context.impl.locking.jvmlocal.JVMLocalLockManager");
-        ParameterService.registerParameters(ContextParameters.class, contextParameters);
+
+        contextParameters.setName(ContextParameterConstants.MAIN_GROUP_NAME);
+        contextParameters.getDistributorParameters().setName(ContextParameterConstants.DISTRIBUTOR_GROUP_NAME);
+        contextParameters.getLockManagerParameters().setName(ContextParameterConstants.LOCKING_GROUP_NAME);
+        contextParameters.getPersistorParameters().setName(ContextParameterConstants.PERSISTENCE_GROUP_NAME);
+
+        ParameterService.register(contextParameters);
+        ParameterService.register(contextParameters.getDistributorParameters());
+        ParameterService.register(contextParameters.getLockManagerParameters());
+        ParameterService.register(contextParameters.getPersistorParameters());
 
         final SchemaParameters schemaParameters = new SchemaParameters();
+        schemaParameters.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
         schemaParameters.getSchemaHelperParameterMap().put("JAVA", new JavaSchemaHelperParameters());
-        ParameterService.registerParameters(SchemaParameters.class, schemaParameters);
+
+        ParameterService.register(schemaParameters);
+    }
+
+    @AfterClass
+    public static void cleanUpAfterTest() {
+        ParameterService.deregister(ContextParameterConstants.DISTRIBUTOR_GROUP_NAME);
+        ParameterService.deregister(ContextParameterConstants.LOCKING_GROUP_NAME);
+        ParameterService.deregister(ContextParameterConstants.PERSISTENCE_GROUP_NAME);
+        ParameterService.deregister(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ParameterService.deregister(ContextParameterConstants.MAIN_GROUP_NAME);
+        ParameterService.clear();
     }
 
     @Test
diff --git a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactoryTest.java b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactoryTest.java
index fed79e713..7bf836c3c 100644
--- a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactoryTest.java
+++ b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactoryTest.java
@@ -24,15 +24,18 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.fail;
 
+import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.onap.policy.apex.context.ContextRuntimeException;
 import org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
 import org.onap.policy.apex.context.parameters.SchemaParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
 import org.onap.policy.apex.model.basicmodel.service.ModelService;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas;
+import org.onap.policy.common.parameters.ParameterService;
 
 public class SchemaHelperFactoryTest {
     private static AxContextSchema intSchema;
@@ -51,6 +54,11 @@ public class SchemaHelperFactoryTest {
         badSchema = new AxContextSchema(new AxArtifactKey("IntSchema", "0.0.1"), "JAVA", "java.lang.Bad");
     }
 
+    @AfterClass
+    public static void clearParameters() {
+        ParameterService.clear();
+    }
+
     @Test
     public void testSchemaHelperFactory() {
         try {
@@ -76,15 +84,21 @@ public class SchemaHelperFactoryTest {
         }
 
         schemas.getSchemasMap().put(intSchema.getKey(), intSchema);
-        new SchemaParameters();
+        SchemaParameters schemaParameters0 = new SchemaParameters();
+        schemaParameters0.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ParameterService.register(schemaParameters0);
         try {
             new SchemaHelperFactory().createSchemaHelper(ownerKey, intSchema.getKey());
             fail("this test should throw an exception");
         } catch (ContextRuntimeException e) {
             assertEquals("context schema helper parameters not found for context schema  \"JAVA\"", e.getMessage());
         }
+        ParameterService.deregister(schemaParameters0);
 
-        new SchemaParameters().getSchemaHelperParameterMap().put("JAVA", new JavaSchemaHelperParameters());
+        SchemaParameters schemaParameters1 = new SchemaParameters();
+        schemaParameters1.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        ParameterService.register(schemaParameters1);
+        schemaParameters1.getSchemaHelperParameterMap().put("JAVA", new JavaSchemaHelperParameters());
         assertNotNull(new SchemaHelperFactory().createSchemaHelper(ownerKey, intSchema.getKey()));
 
         schemas.getSchemasMap().put(intSchema.getKey(), badSchema);
diff --git a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperInstanceCreationTest.java b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperInstanceCreationTest.java
index 1ca3702e8..a71ba3675 100644
--- a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperInstanceCreationTest.java
+++ b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperInstanceCreationTest.java
@@ -23,16 +23,21 @@ package org.onap.policy.apex.context.impl.schema.java;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 
+import org.junit.AfterClass;
 import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.onap.policy.apex.context.SchemaHelper;
 import org.onap.policy.apex.context.impl.schema.SchemaHelperFactory;
+import org.onap.policy.apex.context.parameters.ContextParameterConstants;
+import org.onap.policy.apex.context.parameters.ContextParameters;
 import org.onap.policy.apex.context.parameters.SchemaParameters;
 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
 import org.onap.policy.apex.model.basicmodel.concepts.AxKey;
 import org.onap.policy.apex.model.basicmodel.service.ModelService;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
 import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas;
+import org.onap.policy.common.parameters.ParameterService;
 
 /**
  * JavaSchemaHelperInstanceCreationTest.
@@ -50,9 +55,20 @@ public class JavaSchemaHelperInstanceCreationTest {
     public void initTest() {
         schemas = new AxContextSchemas(new AxArtifactKey("AvroSchemas", "0.0.1"));
         ModelService.registerModel(AxContextSchemas.class, schemas);
-        new SchemaParameters();
+
+        final SchemaParameters schemaParameters = new SchemaParameters();
+        schemaParameters.setName(ContextParameterConstants.SCHEMA_GROUP_NAME);
+        schemaParameters.getSchemaHelperParameterMap().put("JAVA", new JavaSchemaHelperParameters());
+
+        ParameterService.register(schemaParameters);
     }
 
+    @AfterClass
+    public static void cleanUpAfterTest() {
+        ParameterService.clear();
+    }
+
+
     @Test
     public void testNullEncoding() {
         final AxContextSchema javaBooleanSchema =