Changes to send pdp status messages

1) Adding handlers to create and send pdp status messages from apex-pdp.
2) Changes to read initial pdp status parameters from configuration
file.
3) Adding test cases.

Change-Id: Id2d1caa8abc124865a9ef8fbfe4d9f751e4491b5
Issue-ID: POLICY-1452
Signed-off-by: a.sreekumar <ajith.sreekumar@est.tech>

17 files changed, 632 insertions, 49 deletions

diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterActivator.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterActivator.java
index e1fb88a0a..5058e7cd4 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterActivator.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterActivator.java
@@ -20,15 +20,22 @@
 
 package org.onap.policy.apex.starter;
 
+import java.util.List;
 import java.util.Properties;
 
 import lombok.Getter;
 import lombok.Setter;
 
 import org.onap.policy.apex.starter.exception.ApexStarterException;
+import org.onap.policy.apex.starter.handler.CommunicationHandler;
+import org.onap.policy.apex.starter.handler.PdpMessageHandler;
 import org.onap.policy.apex.starter.parameters.ApexStarterParameterGroup;
+import org.onap.policy.apex.starter.parameters.PdpStatusParameters;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.TopicSource;
 import org.onap.policy.common.parameters.ParameterService;
+import org.onap.policy.common.utils.services.Registry;
 import org.onap.policy.common.utils.services.ServiceManager;
 import org.onap.policy.common.utils.services.ServiceManagerException;
 import org.slf4j.Logger;
@@ -43,12 +50,7 @@ public class ApexStarterActivator {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(ApexStarterActivator.class);
     private final ApexStarterParameterGroup apexStarterParameterGroup;
-
-    /**
-     * The current activator.
-     */
-    @Getter
-    private static volatile ApexStarterActivator current = null;
+    private CommunicationHandler communicationHandler;
 
     /**
      * Used to manage the services.
@@ -62,21 +64,35 @@ public class ApexStarterActivator {
     public ApexStarterActivator(final ApexStarterParameterGroup apexStarterParameterGroup,
             final Properties topicProperties) {
 
-        TopicEndpoint.manager.addTopicSinks(topicProperties);
-        TopicEndpoint.manager.addTopicSources(topicProperties);
-
+        final List<TopicSink> topicSinks = TopicEndpoint.manager.addTopicSinks(topicProperties);
+        final List<TopicSource> topicSources = TopicEndpoint.manager.addTopicSources(topicProperties);
         this.apexStarterParameterGroup = apexStarterParameterGroup;
+
+        // TODO: instanceId currently set as a random string, could be fetched from actual deployment
+        final int random = (int) (Math.random() * 100);
+        final String instanceId = "apex_" + random;
+
         // @formatter:off
         this.manager = new ServiceManager()
                 .addAction("topics",
-                        () -> TopicEndpoint.manager.start(), () -> TopicEndpoint.manager.shutdown())
+                        () -> TopicEndpoint.manager.start(),
+                        () -> TopicEndpoint.manager.shutdown())
                 .addAction("set alive",
-                        () -> setAlive(true), () -> setAlive(false))
+                        () -> setAlive(true),
+                        () -> setAlive(false))
+                .addAction("register context map",
+                        () -> Registry.register(ApexStarterConstants.REG_PDP_STATUS_OBJECT,
+                                new PdpMessageHandler().createPdpStatusFromParameters(instanceId,
+                                        apexStarterParameterGroup.getPdpStatusParameters())),
+                        () -> Registry.unregister(ApexStarterConstants.REG_PDP_STATUS_OBJECT))
                 .addAction("register parameters",
                         () -> registerToParameterService(apexStarterParameterGroup),
-                        () -> deregisterToParameterService(apexStarterParameterGroup));
+                        () -> deregisterToParameterService(apexStarterParameterGroup))
+                .addAction("Communication handler",
+                        () -> startCommunicationHandler(topicSinks, topicSources,
+                                apexStarterParameterGroup.getPdpStatusParameters()),
+                        () -> communicationHandler.stop());
         // @formatter:on
-        current = this;
     }
 
     /**
@@ -144,4 +160,21 @@ public class ApexStarterActivator {
     public void deregisterToParameterService(final ApexStarterParameterGroup apexStarterParameterGroup) {
         ParameterService.deregister(apexStarterParameterGroup.getName());
     }
+
+    /**
+     * Starts the communication handler which handles the communication between apex pdp and pap.
+     *
+     * @param pdpStatusParameters
+     * @param topicSources
+     * @param topicSinks
+     *
+     * @throws ApexStarterException if the handler start fails
+     */
+    public void startCommunicationHandler(final List<TopicSink> topicSinks, final List<TopicSource> topicSources,
+            final PdpStatusParameters pdpStatusParameters) throws ApexStarterException {
+        communicationHandler = new CommunicationHandler(topicSinks, topicSources, pdpStatusParameters);
+        if (!communicationHandler.start()) {
+            throw new ApexStarterException("Failed to start the communication handler for ApexStarter");
+        }
+    }
 }
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterConstants.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterConstants.java
new file mode 100644
index 000000000..c2d3dce05
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterConstants.java
@@ -0,0 +1,30 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter;
+
+/**
+ * Names of various items contained in the Registry.
+ */
+public class ApexStarterConstants {
+    // Registry keys
+    public static final String REG_APEX_STARTER_ACTIVATOR = "object:activator/apex_starter";
+    public static final String REG_PDP_STATUS_OBJECT = "object:pdp/status";
+}
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterMain.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterMain.java
index f576bdfd4..7f11de713 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterMain.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/ApexStarterMain.java
@@ -27,6 +27,7 @@ import java.util.Properties;
 import org.onap.policy.apex.starter.exception.ApexStarterException;
 import org.onap.policy.apex.starter.parameters.ApexStarterParameterGroup;
 import org.onap.policy.apex.starter.parameters.ApexStarterParameterHandler;
+import org.onap.policy.common.utils.services.Registry;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -88,12 +89,13 @@ public class ApexStarterMain {
 
         // create the activator
         activator = new ApexStarterActivator(parameterGroup, topicProperties);
-
+        Registry.register(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR, activator);
         // Start the activator
         try {
             activator.initialize();
         } catch (final ApexStarterException e) {
             LOGGER.error("start of ApexStarter failed, used parameters are {}", Arrays.toString(args), e);
+            Registry.unregister(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR);
             return;
         }
 
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/CommunicationHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/CommunicationHandler.java
new file mode 100644
index 000000000..197b34ef5
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/CommunicationHandler.java
@@ -0,0 +1,94 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.handler;
+
+import java.util.List;
+
+import org.onap.policy.apex.starter.parameters.PdpStatusParameters;
+import org.onap.policy.common.capabilities.Startable;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.TopicSource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class manages the communication between apex pdp and pap.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class CommunicationHandler implements Startable {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CommunicationHandler.class);
+
+    private List<TopicSink> topicSinks; // topics to which apex-pdp sends pdp status
+    private List<TopicSource> topicSources; // topics to which apex-pdp listens to for messages from pap.
+
+    private PdpStatusPublisher pdpStatusPublisher;
+    private PdpStatusParameters pdpStatusParameters;
+
+    /**
+     * Constructor for instantiating CommunicationHandler
+     *
+     * @param topicSinks topics to which apex-pdp sends pdp status
+     * @param topicSources topics to which apex-pdp listens to for messages from pap.
+     * @param pdpStatusParameters pdp status parameters read from the configuration file
+     */
+    public CommunicationHandler(final List<TopicSink> topicSinks, final List<TopicSource> topicSources,
+            final PdpStatusParameters pdpStatusParameters) {
+        this.topicSinks = topicSinks;
+        this.topicSources = topicSources;
+        this.pdpStatusParameters = pdpStatusParameters;
+    }
+
+    @Override
+    public boolean start() {
+        try {
+            pdpStatusPublisher = new PdpStatusPublisher(topicSinks, pdpStatusParameters.getTimeInterval());
+        } catch (final Exception e) {
+            LOGGER.error("Failed to start communication handler for apex-pdp", e);
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public boolean stop() {
+        try {
+            pdpStatusPublisher.terminate();
+        } catch (final Exception e) {
+            LOGGER.error("Failed to stop communication handler for apex-pdp", e);
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public void shutdown() {
+        stop();
+    }
+
+    @Override
+    public boolean isAlive() {
+        return pdpStatusPublisher.isAlive();
+    }
+
+}
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpMessageHandler.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpMessageHandler.java
new file mode 100644
index 000000000..a0f4f5863
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpMessageHandler.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.handler;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.onap.policy.apex.starter.ApexStarterConstants;
+import org.onap.policy.apex.starter.parameters.PdpStatusParameters;
+import org.onap.policy.apex.starter.parameters.PolicyTypeIdentParameters;
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.pdp.concepts.PdpStatus;
+import org.onap.policy.models.pdp.concepts.PolicyTypeIdent;
+import org.onap.policy.models.pdp.enums.PdpHealthStatus;
+import org.onap.policy.models.pdp.enums.PdpState;
+
+/**
+ * This class supports the handling of pdp messages.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class PdpMessageHandler {
+
+    /**
+     * Method to create PdpStatus message from the parameters which will be saved to the context
+     *
+     * @param instanceId instance id of apex pdp
+     * @param pdpStatusParameters pdp status parameters read from the configuration file
+     *
+     * @return PdpStatus the pdp status message
+     */
+    public PdpStatus createPdpStatusFromParameters(final String instanceId,
+            final PdpStatusParameters pdpStatusParameters) {
+        final PdpStatus pdpStatus = new PdpStatus();
+        pdpStatus.setName(pdpStatusParameters.getPdpName());
+        pdpStatus.setVersion(pdpStatusParameters.getVersion());
+        pdpStatus.setPdpType(pdpStatusParameters.getPdpType());
+        pdpStatus.setState(PdpState.PASSIVE);
+        pdpStatus.setHealthy(PdpHealthStatus.HEALTHY);
+        pdpStatus.setDescription(pdpStatusParameters.getDescription());
+        pdpStatus.setInstance(instanceId);
+        final List<PolicyTypeIdent> supportedPolicyTypes = new ArrayList<PolicyTypeIdent>();
+        for (final PolicyTypeIdentParameters policyTypeIdentParameters : pdpStatusParameters
+                .getSupportedPolicyTypes()) {
+            supportedPolicyTypes.add(
+                    new PolicyTypeIdent(policyTypeIdentParameters.getName(), policyTypeIdentParameters.getVersion()));
+        }
+        pdpStatus.setSupportedPolicyTypes(supportedPolicyTypes);
+        return pdpStatus;
+    }
+
+    /**
+     * Method to create PdpStatus message from the context, which is to be sent by apex-pdp to pap
+     *
+     * @return PdpStatus the pdp status message
+     */
+    public PdpStatus createPdpStatusFromContext() {
+        final PdpStatus pdpStatusContext = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT, PdpStatus.class);
+        final PdpStatus pdpStatus = new PdpStatus();
+        pdpStatus.setName(pdpStatusContext.getName());
+        pdpStatus.setVersion(pdpStatusContext.getVersion());
+        pdpStatus.setPdpType(pdpStatusContext.getPdpType());
+        pdpStatus.setState(pdpStatusContext.getState());
+        pdpStatus.setHealthy(pdpStatusContext.getHealthy());
+        pdpStatus.setDescription(pdpStatusContext.getDescription());
+        pdpStatus.setInstance(pdpStatusContext.getInstance());
+        pdpStatus.setSupportedPolicyTypes(pdpStatusContext.getSupportedPolicyTypes());
+        return pdpStatus;
+    }
+}
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpStatusPublisher.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpStatusPublisher.java
new file mode 100644
index 000000000..2853ae798
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/handler/PdpStatusPublisher.java
@@ -0,0 +1,91 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.handler;
+
+import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class is used to send pdp status messages to pap using TopicSinkClient.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class PdpStatusPublisher extends TimerTask {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CommunicationHandler.class);
+
+    private List<TopicSink> topicSinks;
+    private TopicSinkClient topicSinkClient;
+    private Timer timer;
+    private PdpMessageHandler pdpMessageHandler;
+
+    @Getter
+    @Setter(lombok.AccessLevel.PRIVATE)
+    private volatile boolean alive = false;
+
+    /**
+     * Constructor for instantiating PdpStatusPublisher
+     *
+     * @param pdpStatus
+     * @param topicSinks
+     * @param apexStarterParameterGroup
+     */
+    public PdpStatusPublisher(final List<TopicSink> topicSinks, final int interval) {
+        this.topicSinks = topicSinks;
+        this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
+        this.pdpMessageHandler = new PdpMessageHandler();
+        timer = new Timer(false);
+        timer.scheduleAtFixedRate(this, 0, interval * 1000L);
+        setAlive(true);
+    }
+
+    @Override
+    public void run() {
+        topicSinkClient.send(pdpMessageHandler.createPdpStatusFromContext());
+        LOGGER.info("Sent heartbeat to PAP");
+    }
+
+    public void terminate() {
+        timer.cancel();
+        timer.purge();
+        setAlive(false);
+    }
+
+    public PdpStatusPublisher updateInterval(final int interval) {
+        terminate();
+        return new PdpStatusPublisher(topicSinks, interval);
+    }
+
+    public void send() {
+        topicSinkClient.send(pdpMessageHandler.createPdpStatusFromContext());
+        LOGGER.info("Sent pdp status response message to PAP");
+    }
+
+}
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/ApexStarterParameterGroup.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/ApexStarterParameterGroup.java
index 25001330c..68299480e 100644
--- a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/ApexStarterParameterGroup.java
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/ApexStarterParameterGroup.java
@@ -23,7 +23,6 @@ package org.onap.policy.apex.starter.parameters;
 import lombok.Getter;
 
 import org.onap.policy.common.parameters.ParameterGroupImpl;
-import org.onap.policy.common.parameters.annotations.Min;
 import org.onap.policy.common.parameters.annotations.NotBlank;
 import org.onap.policy.common.parameters.annotations.NotNull;
 
@@ -36,8 +35,8 @@ import org.onap.policy.common.parameters.annotations.NotNull;
 @NotBlank
 @Getter
 public class ApexStarterParameterGroup extends ParameterGroupImpl {
-    @Min(value = 1)
-    private int timeInterval;
+
+    private PdpStatusParameters pdpStatusParameters;
 
     /**
      * Create the apex starter parameter group.
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PdpStatusParameters.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PdpStatusParameters.java
new file mode 100644
index 000000000..64545492d
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PdpStatusParameters.java
@@ -0,0 +1,54 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.parameters;
+
+import java.util.List;
+
+import lombok.Getter;
+
+import org.onap.policy.common.parameters.ParameterGroupImpl;
+import org.onap.policy.common.parameters.annotations.Min;
+import org.onap.policy.common.parameters.annotations.NotBlank;
+import org.onap.policy.common.parameters.annotations.NotNull;
+
+/**
+ * Class to hold all parameters needed for pdpstatus.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+@NotNull
+@NotBlank
+@Getter
+public class PdpStatusParameters extends ParameterGroupImpl {
+
+    @Min(value = 1)
+    private int timeInterval;
+
+    private String pdpName;
+    private String version;
+    private String pdpType;
+    private String description;
+    private List<PolicyTypeIdentParameters> supportedPolicyTypes;
+
+    public PdpStatusParameters() {
+        super(PdpStatusParameters.class.getSimpleName());
+    }
+}
diff --git a/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PolicyTypeIdentParameters.java b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PolicyTypeIdentParameters.java
new file mode 100644
index 000000000..b6760a023
--- /dev/null
+++ b/services/services-onappf/src/main/java/org/onap/policy/apex/starter/parameters/PolicyTypeIdentParameters.java
@@ -0,0 +1,43 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.parameters;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+import org.onap.policy.common.parameters.annotations.NotBlank;
+import org.onap.policy.common.parameters.annotations.NotNull;
+
+/**
+ * Class to hold all parameters needed for PolicyTypeIdent.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+@NotNull
+@NotBlank
+@Getter
+@Setter
+@EqualsAndHashCode
+public class PolicyTypeIdentParameters {
+    private String name;
+    private String version;
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java
index 3b7df8321..6da3a5eb6 100644
--- a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java
@@ -23,7 +23,8 @@ package org.onap.policy.apex.starter;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import java.io.FileInputStream;
@@ -36,8 +37,8 @@ import org.onap.policy.apex.starter.exception.ApexStarterException;
 import org.onap.policy.apex.starter.parameters.ApexStarterParameterGroup;
 import org.onap.policy.apex.starter.parameters.ApexStarterParameterHandler;
 import org.onap.policy.apex.starter.parameters.CommonTestData;
-
-
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.pdp.concepts.PdpStatus;
 
 /**
  * Class to perform unit test of {@link ApexStarterActivator}}.
@@ -55,6 +56,7 @@ public class TestApexStarterActivator {
      */
     @Before
     public void setUp() throws Exception {
+        Registry.newRegistry();
         final String[] apexStarterConfigParameters = { "-c", "src/test/resources/ApexStarterConfigParameters.json",
             "-p", "src/test/resources/topic.properties" };
         final ApexStarterCommandLineArguments arguments =
@@ -90,6 +92,9 @@ public class TestApexStarterActivator {
         assertTrue(activator.getParameterGroup().isValid());
         assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, activator.getParameterGroup().getName());
 
+        // ensure items were added to the registry
+        assertNotNull(Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT, PdpStatus.class));
+
         // repeat - should throw an exception
         assertThatIllegalStateException().isThrownBy(() -> activator.initialize());
         assertTrue(activator.isAlive());
@@ -97,16 +102,14 @@ public class TestApexStarterActivator {
     }
 
     @Test
-    public void testGetCurrent_testSetCurrent() {
-        assertSame(activator, ApexStarterActivator.getCurrent());
-    }
-
-    @Test
     public void testTerminate() throws Exception {
         activator.initialize();
         activator.terminate();
         assertFalse(activator.isAlive());
 
+        // ensure items have been removed from the registry
+        assertNull(Registry.getOrDefault(ApexStarterConstants.REG_PDP_STATUS_OBJECT, PdpStatus.class, null));
+
         // repeat - should throw an exception
         assertThatIllegalStateException().isThrownBy(() -> activator.terminate());
         assertFalse(activator.isAlive());
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterConstants.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterConstants.java
new file mode 100644
index 000000000..08e56cdf8
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterConstants.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter;
+
+import org.junit.Test;
+import org.powermock.reflect.Whitebox;
+
+/**
+ * Class to perform unit test of {@link ApexStarterConstants}}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestApexStarterConstants {
+    @Test
+    public void test() throws Exception {
+        // verify that constructor does not throw an exception
+        Whitebox.invokeConstructor(ApexStarterConstants.class);
+    }
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java
index 5d52d85c5..3005e320a 100644
--- a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java
@@ -21,12 +21,15 @@
 package org.onap.policy.apex.starter;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 import org.onap.policy.apex.starter.exception.ApexStarterException;
 import org.onap.policy.apex.starter.parameters.CommonTestData;
+import org.onap.policy.common.utils.services.Registry;
 
 /**
  * Class to perform unit test of {@link ApexStarterMain}}.
@@ -37,6 +40,14 @@ public class TestApexStarterMain {
     private ApexStarterMain apexStarter;
 
     /**
+     * Set up.
+     */
+    @Before
+    public void setUp() {
+        Registry.newRegistry();
+    }
+
+    /**
      * Shuts "main" down.
      *
      * @throws Exception if an error occurs
@@ -44,7 +55,8 @@ public class TestApexStarterMain {
     @After
     public void tearDown() throws Exception {
         // shut down activator
-        final ApexStarterActivator activator = ApexStarterActivator.getCurrent();
+        final ApexStarterActivator activator = Registry.getOrDefault(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR,
+                ApexStarterActivator.class, null);
         if (activator != null && activator.isAlive()) {
             activator.terminate();
         }
@@ -58,6 +70,9 @@ public class TestApexStarterMain {
         assertTrue(apexStarter.getParameters().isValid());
         assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, apexStarter.getParameters().getName());
 
+        // ensure items were added to the registry
+        assertNotNull(Registry.get(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR, ApexStarterActivator.class));
+
         apexStarter.shutdown();
     }
 
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java
index 08a33b94c..03f6ec2c5 100644
--- a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java
@@ -20,6 +20,8 @@
 
 package org.onap.policy.apex.starter.parameters;
 
+import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 
@@ -36,9 +38,29 @@ import org.onap.policy.common.utils.coder.StandardCoder;
 public class CommonTestData {
 
     public static final String APEX_STARTER_GROUP_NAME = "ApexStarterParameterGroup";
-    public static final int APEX_STARTER_TIME_INTERVAL = 5;
+    public static final int TIME_INTERVAL = 2;
+    public static final String PDP_NAME = "apex-pdp";
+    public static final String VERSION = "0.0.1";
+    public static final String PDP_TYPE = "apex";
+    public static final String DESCRIPTION = "Pdp status for HealthCheck";
+    public static final String POLICY_NAME = "onap.controllloop.operational.apex.BBS";
+    public static final String POLICY_VERSION = "0.0.1";
+    public static final List<PolicyTypeIdentParameters> SUPPORTED_POLICY_TYPES =
+            Arrays.asList(getSupportedPolicyTypes(POLICY_NAME, POLICY_VERSION));
+
+    public static final Coder coder = new StandardCoder();
 
-    private static final Coder coder = new StandardCoder();
+    /**
+     * Returns supported policy types for test cases.
+     *
+     * @return supported policy types
+     */
+    public static PolicyTypeIdentParameters getSupportedPolicyTypes(final String name, final String version) {
+        final PolicyTypeIdentParameters policyTypeIdentParameters = new PolicyTypeIdentParameters();
+        policyTypeIdentParameters.setName(name);
+        policyTypeIdentParameters.setVersion(version);
+        return policyTypeIdentParameters;
+    }
 
     /**
      * Converts the contents of a map to a parameter class.
@@ -67,26 +89,28 @@ public class CommonTestData {
         final Map<String, Object> map = new TreeMap<>();
 
         map.put("name", name);
-        map.put("timeInterval", getTimeInterval(false));
+        map.put("pdpStatusParameters", getPdpStatusParametersMap(false));
 
         return map;
     }
 
-
-
     /**
-     * Determines whether to return null or a valid time interval
+     * Returns a property map for a PdpStatusParameters map for test cases.
      *
-     * @param isNullField flag to determine what to return
-     * @return time interval based on the flag
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
      */
-    public Object getTimeInterval(final boolean isNullField) {
-        if (isNullField) {
-            return null;
-        } else {
-            return APEX_STARTER_TIME_INTERVAL;
+    public Map<String, Object> getPdpStatusParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("timeInterval", TIME_INTERVAL);
+            map.put("pdpName", PDP_NAME);
+            map.put("version", VERSION);
+            map.put("pdpType", PDP_TYPE);
+            map.put("description", DESCRIPTION);
+            map.put("supportedPolicyTypes", SUPPORTED_POLICY_TYPES);
         }
 
+        return map;
     }
-
 }
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java
index d22455214..2ba575ea6 100644
--- a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java
@@ -48,10 +48,16 @@ public class TestApexStarterParameterGroup {
         final ApexStarterParameterGroup apexStarterParameters = commonTestData.toObject(
                 commonTestData.getApexStarterParameterGroupMap(CommonTestData.APEX_STARTER_GROUP_NAME),
                 ApexStarterParameterGroup.class);
+        final PdpStatusParameters pdpStatusParameters = apexStarterParameters.getPdpStatusParameters();
         final GroupValidationResult validationResult = apexStarterParameters.validate();
         assertTrue(validationResult.isValid());
         assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, apexStarterParameters.getName());
-        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
+        assertEquals(CommonTestData.TIME_INTERVAL, pdpStatusParameters.getTimeInterval());
+        assertEquals(CommonTestData.PDP_NAME, pdpStatusParameters.getPdpName());
+        assertEquals(CommonTestData.PDP_TYPE, pdpStatusParameters.getPdpType());
+        assertEquals(CommonTestData.VERSION, pdpStatusParameters.getVersion());
+        assertEquals(CommonTestData.DESCRIPTION, pdpStatusParameters.getDescription());
+        assertEquals(CommonTestData.SUPPORTED_POLICY_TYPES, pdpStatusParameters.getSupportedPolicyTypes());
     }
 
     @Test
@@ -61,7 +67,6 @@ public class TestApexStarterParameterGroup {
         final GroupValidationResult validationResult = apexStarterParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals(null, apexStarterParameters.getName());
-        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
         assertTrue(validationResult.getResult().contains("is null"));
     }
 
@@ -72,7 +77,6 @@ public class TestApexStarterParameterGroup {
         final GroupValidationResult validationResult = apexStarterParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals("", apexStarterParameters.getName());
-        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
         assertTrue(validationResult.getResult().contains(
                 "field \"name\" type \"java.lang.String\" value \"\" INVALID, " + "must be a non-blank string"));
     }
@@ -89,16 +93,16 @@ public class TestApexStarterParameterGroup {
     }
 
     @Test
-    public void testApexStarterParameterGroup_EmptyTimeInterval() {
+    public void testApexStarterParameterGroup_EmptyPdpStatusParameters() {
         final Map<String, Object> map =
                 commonTestData.getApexStarterParameterGroupMap(CommonTestData.APEX_STARTER_GROUP_NAME);
-        map.put("timeInterval", commonTestData.getTimeInterval(true));
+        map.put("pdpStatusParameters", commonTestData.getPdpStatusParametersMap(true));
         final ApexStarterParameterGroup apexStarterParameters =
                 commonTestData.toObject(map, ApexStarterParameterGroup.class);
         final GroupValidationResult validationResult = apexStarterParameters.validate();
         assertFalse(validationResult.isValid());
         assertTrue(validationResult.getResult()
-                .contains("field \"timeInterval\" type \"int\" value \"0\" INVALID, must be >= 1")
-                && validationResult.getResult().contains("parameter group has status INVALID"));
+                .contains("\"org.onap.policy.apex.starter.parameters.ApexStarterParameterGroup\" INVALID, "
+                        + "parameter group has status INVALID"));
     }
 }
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java
index 3889b2aa5..baa91d23a 100644
--- a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java
@@ -109,7 +109,6 @@ public class TestApexStarterParameterHandler {
         final ApexStarterParameterGroup parGroup = new ApexStarterParameterHandler().getParameters(arguments);
         assertTrue(arguments.checkSetConfigurationFilePath());
         assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, parGroup.getName());
-        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, parGroup.getTimeInterval());
     }
 
     @Test
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestPdpStatusParameters.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestPdpStatusParameters.java
new file mode 100644
index 000000000..c5e061e1b
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestPdpStatusParameters.java
@@ -0,0 +1,60 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.starter.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.common.parameters.GroupValidationResult;
+
+/**
+ * Class to perform unit test of {@link PdpStatusParameters}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestPdpStatusParameters {
+    private static CommonTestData testData = new CommonTestData();
+
+    @Test
+    public void test() throws Exception {
+        final PdpStatusParameters pdpStatusParameters =
+                testData.toObject(testData.getPdpStatusParametersMap(false), PdpStatusParameters.class);
+        final GroupValidationResult validationResult = pdpStatusParameters.validate();
+        assertTrue(validationResult.isValid());
+        assertEquals(CommonTestData.TIME_INTERVAL, pdpStatusParameters.getTimeInterval());
+        assertEquals(CommonTestData.PDP_NAME, pdpStatusParameters.getPdpName());
+        assertEquals(CommonTestData.PDP_TYPE, pdpStatusParameters.getPdpType());
+        assertEquals(CommonTestData.VERSION, pdpStatusParameters.getVersion());
+        assertEquals(CommonTestData.DESCRIPTION, pdpStatusParameters.getDescription());
+        assertEquals(CommonTestData.SUPPORTED_POLICY_TYPES, pdpStatusParameters.getSupportedPolicyTypes());
+    }
+
+    @Test
+    public void testValidate() throws Exception {
+        final PdpStatusParameters pdpStatusParameters =
+                testData.toObject(testData.getPdpStatusParametersMap(false), PdpStatusParameters.class);
+        final GroupValidationResult result = pdpStatusParameters.validate();
+        assertNull(result.getResult());
+        assertTrue(result.isValid());
+    }
+}
diff --git a/services/services-onappf/src/test/resources/ApexStarterConfigParameters.json b/services/services-onappf/src/test/resources/ApexStarterConfigParameters.json
index 2720cdefd..dad7408dc 100644
--- a/services/services-onappf/src/test/resources/ApexStarterConfigParameters.json
+++ b/services/services-onappf/src/test/resources/ApexStarterConfigParameters.json
@@ -1,4 +1,11 @@
 {
     "name":"ApexStarterParameterGroup",
-    "timeInterval": 5
+    "pdpStatusParameters":{
+        "timeInterval": 2,
+        "pdpName":"apex-pdp",
+        "version":"0.0.1",
+        "pdpType":"apex",
+        "description":"Pdp status for HealthCheck",
+        "supportedPolicyTypes":[{"name":"policy1","version":"1.0"},{"name":"policy2","version":"1.0"}]
+    }
 }