Convert Control Loop components to Spring and Supervision refactor

Issue-ID: POLICY-3463
Change-Id: Icc5b2ea576dbbe4cf954b51b8074f91884e93f56
Signed-off-by: FrancescoFioraEst <francesco.fiora@est.tech>

15 files changed, 242 insertions, 345 deletions

diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/Application.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/Application.java
index a2b6f62d4..6b772513c 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/Application.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/Application.java
@@ -22,8 +22,11 @@ package org.onap.policy.clamp.controlloop.runtime;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
 
 @SpringBootApplication
+@ComponentScan({"org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider",
+    "org.onap.policy.clamp.controlloop.runtime"})
 public class Application {
 
     public static void main(String[] args) {
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
index f291c4e89..bf6e39914 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/commissioning/CommissioningProvider.java
@@ -25,8 +25,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.module.jsonSchema.JsonSchema;
 import com.fasterxml.jackson.module.jsonSchema.factories.SchemaFactoryWrapper;
-import java.io.Closeable;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -36,11 +34,8 @@ import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.collections4.MapUtils;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
 import org.onap.policy.clamp.controlloop.models.messages.rest.commissioning.CommissioningResponse;
-import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
 import org.onap.policy.models.base.PfModelException;
-import org.onap.policy.models.base.PfModelRuntimeException;
 import org.onap.policy.models.provider.PolicyModelsProvider;
-import org.onap.policy.models.provider.PolicyModelsProviderFactory;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaCapabilityType;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaDataType;
@@ -59,7 +54,7 @@ import org.springframework.stereotype.Component;
  * the callers.
  */
 @Component
-public class CommissioningProvider implements Closeable {
+public class CommissioningProvider {
     public static final String CONTROL_LOOP_NODE_TYPE = "org.onap.policy.clamp.controlloop.ControlLoop";
 
     private final PolicyModelsProvider modelsProvider;
@@ -70,32 +65,12 @@ public class CommissioningProvider implements Closeable {
     /**
      * Create a commissioning provider.
      *
-     * @param controlLoopParameters the parameters for access to the database
-     * @throws PfModelRuntimeException on errors creating the database provider
+     * @param modelsProvider the PolicyModelsProvider
+     * @param clProvider the ControlLoopProvider
      */
-    public CommissioningProvider(ClRuntimeParameterGroup controlLoopParameters) {
-        try {
-            modelsProvider = new PolicyModelsProviderFactory()
-                    .createPolicyModelsProvider(controlLoopParameters.getDatabaseProviderParameters());
-        } catch (PfModelException e) {
-            throw new PfModelRuntimeException(e);
-        }
-
-        try {
-            clProvider = new ControlLoopProvider(controlLoopParameters.getDatabaseProviderParameters());
-        } catch (PfModelException e) {
-            throw new PfModelRuntimeException(e);
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        try {
-            modelsProvider.close();
-            clProvider.close();
-        } catch (PfModelException e) {
-            throw new IOException("error closing modelsProvider", e);
-        }
+    public CommissioningProvider(PolicyModelsProvider modelsProvider, ControlLoopProvider clProvider) {
+        this.modelsProvider = modelsProvider;
+        this.clProvider = clProvider;
     }
 
     /**
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/ActivatorConfig.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/PolicyModelConfig.java
index 1d6b92e77..8a151d886 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/ActivatorConfig.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/PolicyModelConfig.java
@@ -21,26 +21,25 @@
 package org.onap.policy.clamp.controlloop.runtime.config;
 
 import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
-import org.onap.policy.clamp.controlloop.runtime.main.startstop.ClRuntimeActivator;
-import org.onap.policy.clamp.controlloop.runtime.supervision.SupervisionHandler;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.models.provider.PolicyModelsProviderFactory;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
-public class ActivatorConfig {
+public class PolicyModelConfig {
 
-    /**
-     * Create and start ClRuntimeActivator.
-     *
-     * @param clRuntimeParameterGroup the parameters for the control loop runtime service
-     * @param supervisionHandler the SupervisionHandler
-     * @return ClRuntimeActivator
-     */
     @Bean
-    public ClRuntimeActivator clRuntimeActivator(ClRuntimeParameterGroup clRuntimeParameterGroup,
-            SupervisionHandler supervisionHandler) {
-        var clRuntimeActivator = new ClRuntimeActivator(clRuntimeParameterGroup, supervisionHandler);
-        clRuntimeActivator.start();
-        return clRuntimeActivator;
+    public PolicyModelsProviderParameters policyModelsProviderParameters(
+            ClRuntimeParameterGroup clRuntimeParameterGroup) {
+        return clRuntimeParameterGroup.getDatabaseProviderParameters();
+    }
+
+    @Bean
+    public PolicyModelsProvider policyModelsProvider(PolicyModelsProviderParameters policyModelsProviderParameters)
+            throws PfModelException {
+        return new PolicyModelsProviderFactory().createPolicyModelsProvider(policyModelsProviderParameters);
     }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Listener.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Listener.java
new file mode 100644
index 000000000..b67ddf2a7
--- /dev/null
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Listener.java
@@ -0,0 +1,40 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.runtime.config.messaging;
+
+import org.onap.policy.common.endpoints.listeners.ScoListener;
+
+public interface Listener {
+
+    /**
+     * Get the type of message of interest to the listener.
+     *
+     * @return type of message of interest to the listener
+     */
+    String getType();
+
+    /**
+     * Get listener to register.
+     *
+     * @return listener to register
+     */
+    <T> ScoListener<T> getScoListener();
+}
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/startstop/ClRuntimeActivator.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/MessageDispatcherActivator.java
index 323f76178..891dab9ae 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/main/startstop/ClRuntimeActivator.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/MessageDispatcherActivator.java
@@ -18,53 +18,47 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.policy.clamp.controlloop.runtime.main.startstop;
+package org.onap.policy.clamp.controlloop.runtime.config.messaging;
 
 import java.io.Closeable;
 import java.io.IOException;
 import java.util.List;
+import java.util.stream.Stream;
 import javax.ws.rs.core.Response.Status;
 import lombok.Getter;
 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
 import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
-import org.onap.policy.clamp.controlloop.runtime.supervision.SupervisionHandler;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
 import org.onap.policy.common.endpoints.event.comm.TopicSink;
 import org.onap.policy.common.endpoints.event.comm.TopicSource;
 import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
 import org.onap.policy.common.utils.services.ServiceManagerContainer;
+import org.springframework.context.event.ContextRefreshedEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Component;
 
-/**
- * This class activates the control loop runtime component as a complete service together with all its controllers,
- * listeners & handlers.
- */
-public class ClRuntimeActivator extends ServiceManagerContainer implements Closeable {
-    // Name of the message type for messages on topics
-    private static final String[] MSG_TYPE_NAMES = {"messageType"};
+@Component
+public class MessageDispatcherActivator extends ServiceManagerContainer implements Closeable {
 
-    @Getter
-    private final ClRuntimeParameterGroup parameterGroup;
+    private static final String[] MSG_TYPE_NAMES = {"messageType"};
 
     // Topics from which the application receives and to which the application sends messages
     private List<TopicSink> topicSinks;
     private List<TopicSource> topicSources;
 
-    /**
-     * Listens for messages on the topic, decodes them into a message, and then dispatches them.
-     */
+    @Getter
     private final MessageTypeDispatcher msgDispatcher;
 
     /**
-     * Instantiate the activator for the control loop runtime as a complete service.
+     * Constructor.
      *
      * @param clRuntimeParameterGroup the parameters for the control loop runtime service
-     * @param supervisionHandler SupervisionHandler
+     * @param publishers array of Publishers
+     * @param listeners array of Listeners
      * @throws ControlLoopRuntimeException if the activator does not start
      */
-    public ClRuntimeActivator(final ClRuntimeParameterGroup clRuntimeParameterGroup,
-            SupervisionHandler supervisionHandler) {
-        this.parameterGroup = clRuntimeParameterGroup;
-
+    public MessageDispatcherActivator(final ClRuntimeParameterGroup clRuntimeParameterGroup, Publisher[] publishers,
+            Listener[] listeners) {
         topicSinks = TopicEndpointManager.getManager()
                 .addTopicSinks(clRuntimeParameterGroup.getTopicParameterGroup().getTopicSinks());
 
@@ -80,15 +74,18 @@ public class ClRuntimeActivator extends ServiceManagerContainer implements Close
 
         // @formatter:off
         addAction("Topic endpoint management",
-            () -> TopicEndpointManager.getManager().start(),
-            () -> TopicEndpointManager.getManager().shutdown());
+                () -> TopicEndpointManager.getManager().start(),
+                () -> TopicEndpointManager.getManager().shutdown());
 
-        addAction("Supervision Providers", () -> supervisionHandler.startProviders(),
-                () -> supervisionHandler.stopProviders());
-        addAction("Supervision Listeners", () -> supervisionHandler.startAndRegisterListeners(msgDispatcher),
-                () -> supervisionHandler.stopAndUnregisterListeners(msgDispatcher));
-        addAction("Supervision Publishers", () -> supervisionHandler.startAndRegisterPublishers(topicSinks),
-                () -> supervisionHandler.stopAndUnregisterPublishers());
+        Stream.of(publishers).forEach(publisher ->
+            addAction("Publisher " + publisher.getClass().getSimpleName(),
+                () -> publisher.active(topicSinks),
+                () -> publisher.stop()));
+
+        Stream.of(listeners).forEach(listener ->
+            addAction("Listener " + listener.getClass().getSimpleName(),
+                    () -> msgDispatcher.register(listener.getType(), listener.getScoListener()),
+                    () -> msgDispatcher.unregister(listener.getType())));
 
         addAction("Topic Message Dispatcher", this::registerMsgDispatcher, this::unregisterMsgDispatcher);
         // @formatter:on
@@ -112,6 +109,18 @@ public class ClRuntimeActivator extends ServiceManagerContainer implements Close
         }
     }
 
+    /**
+     * Start Manager after the application is Started.
+     *
+     * @param cre Refreshed Event
+     */
+    @EventListener
+    public void handleContextStart(ContextRefreshedEvent cre) {
+        if (!isAlive()) {
+            start();
+        }
+    }
+
     @Override
     public void close() throws IOException {
         if (isAlive()) {
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Publisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Publisher.java
new file mode 100644
index 000000000..3cd4dff85
--- /dev/null
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/config/messaging/Publisher.java
@@ -0,0 +1,34 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.runtime.config.messaging;
+
+import java.util.List;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+
+/**
+ * Publisher.
+ */
+public interface Publisher {
+
+    void active(List<TopicSink> topicSinks);
+
+    void stop();
+}
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
index c01a0b989..1011f620c 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/instantiation/ControlLoopInstantiationProvider.java
@@ -20,8 +20,6 @@
 
 package org.onap.policy.clamp.controlloop.runtime.instantiation;
 
-import java.io.Closeable;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -30,6 +28,7 @@ import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.Status;
+import lombok.AllArgsConstructor;
 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
@@ -39,14 +38,12 @@ import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationCommand;
 import org.onap.policy.clamp.controlloop.models.messages.rest.instantiation.InstantiationResponse;
 import org.onap.policy.clamp.controlloop.runtime.commissioning.CommissioningProvider;
-import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
 import org.onap.policy.clamp.controlloop.runtime.supervision.SupervisionHandler;
 import org.onap.policy.common.parameters.BeanValidationResult;
 import org.onap.policy.common.parameters.ObjectValidationResult;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.common.parameters.ValidationStatus;
 import org.onap.policy.models.base.PfModelException;
-import org.onap.policy.models.base.PfModelRuntimeException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
 import org.springframework.stereotype.Component;
@@ -55,7 +52,8 @@ import org.springframework.stereotype.Component;
  * This class is dedicated to the Instantiation of Commissioned control loop.
  */
 @Component
-public class ControlLoopInstantiationProvider implements Closeable {
+@AllArgsConstructor
+public class ControlLoopInstantiationProvider {
     private final ControlLoopProvider controlLoopProvider;
     private final CommissioningProvider commissioningProvider;
     private final SupervisionHandler supervisionHandler;
@@ -63,30 +61,6 @@ public class ControlLoopInstantiationProvider implements Closeable {
     private static final Object lockit = new Object();
 
     /**
-     * Create a instantiation provider.
-     *
-     * @param controlLoopParameters the parameters for access to the database
-     * @param commissioningProvider CommissioningProvider
-     * @param supervisionHandler SupervisionHandler
-     * @throws PfModelRuntimeException on errors creating a provider
-     */
-    public ControlLoopInstantiationProvider(ClRuntimeParameterGroup controlLoopParameters,
-            CommissioningProvider commissioningProvider, SupervisionHandler supervisionHandler) {
-        this.commissioningProvider = commissioningProvider;
-        this.supervisionHandler = supervisionHandler;
-        try {
-            controlLoopProvider = new ControlLoopProvider(controlLoopParameters.getDatabaseProviderParameters());
-        } catch (PfModelException e) {
-            throw new PfModelRuntimeException(e);
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        controlLoopProvider.close();
-    }
-
-    /**
      * Create control loops.
      *
      * @param controlLoops the control loop
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringProvider.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringProvider.java
index a68505877..1f6246bd6 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringProvider.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringProvider.java
@@ -20,13 +20,12 @@
 
 package org.onap.policy.clamp.controlloop.runtime.monitoring;
 
-import java.io.Closeable;
-import java.io.IOException;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import lombok.AllArgsConstructor;
 import lombok.NonNull;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatisticsList;
@@ -36,7 +35,6 @@ import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ClElementStatisticsProvider;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ParticipantStatisticsProvider;
-import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.base.PfModelRuntimeException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
@@ -46,7 +44,8 @@ import org.springframework.stereotype.Component;
  * This class provides information about statistics data of CL elements and CL Participants in database to callers.
  */
 @Component
-public class MonitoringProvider implements Closeable {
+@AllArgsConstructor
+public class MonitoringProvider {
 
     private static final String DESC_ORDER = "DESC";
     private final ParticipantStatisticsProvider participantStatisticsProvider;
@@ -54,32 +53,6 @@ public class MonitoringProvider implements Closeable {
     private final ControlLoopProvider controlLoopProvider;
 
     /**
-     * Create a Monitoring provider.
-     *
-     * @param controlLoopParameters the parameters for access to the database
-     * @throws PfModelRuntimeException on errors creating the provider
-     */
-    public MonitoringProvider(ClRuntimeParameterGroup controlLoopParameters) {
-
-        try {
-            participantStatisticsProvider =
-                    new ParticipantStatisticsProvider(controlLoopParameters.getDatabaseProviderParameters());
-            clElementStatisticsProvider =
-                    new ClElementStatisticsProvider(controlLoopParameters.getDatabaseProviderParameters());
-            controlLoopProvider = new ControlLoopProvider(controlLoopParameters.getDatabaseProviderParameters());
-        } catch (PfModelException e) {
-            throw new PfModelRuntimeException(e);
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        controlLoopProvider.close();
-        clElementStatisticsProvider.close();
-        participantStatisticsProvider.close();
-    }
-
-    /**
      * Create participant statistics.
      *
      * @param participantStatistics the participant statistics
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionHandler.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionHandler.java
index e1b4be48b..aba545750 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionHandler.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionHandler.java
@@ -21,34 +21,20 @@
 package org.onap.policy.clamp.controlloop.runtime.supervision;
 
 import java.util.List;
-import java.util.UUID;
 import javax.ws.rs.core.Response;
-import javax.ws.rs.core.Response.Status;
+import lombok.AllArgsConstructor;
 import org.apache.commons.collections4.CollectionUtils;
 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
-import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
-import org.onap.policy.clamp.controlloop.common.handler.ControlLoopHandler;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ParticipantProvider;
-import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopStateChange;
-import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
-import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStatus;
-import org.onap.policy.clamp.controlloop.runtime.commissioning.CommissioningProvider;
-import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
 import org.onap.policy.clamp.controlloop.runtime.monitoring.MonitoringProvider;
 import org.onap.policy.clamp.controlloop.runtime.supervision.comm.ParticipantControlLoopStateChangePublisher;
 import org.onap.policy.clamp.controlloop.runtime.supervision.comm.ParticipantControlLoopUpdatePublisher;
-import org.onap.policy.clamp.controlloop.runtime.supervision.comm.ParticipantStateChangePublisher;
-import org.onap.policy.clamp.controlloop.runtime.supervision.comm.ParticipantStatusListener;
-import org.onap.policy.common.endpoints.event.comm.TopicSink;
-import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
-import org.onap.policy.common.utils.services.ServiceManager;
-import org.onap.policy.common.utils.services.ServiceManagerException;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.slf4j.Logger;
@@ -58,10 +44,12 @@ import org.springframework.stereotype.Component;
 /**
  * This class handles supervision of control loop instances, so only one object of this type should be built at a time.
  *
- * <p/> It is effectively a singleton that is started at system start.
+ * <p/>
+ * It is effectively a singleton that is started at system start.
  */
 @Component
-public class SupervisionHandler extends ControlLoopHandler {
+@AllArgsConstructor
+public class SupervisionHandler {
     private static final Logger LOGGER = LoggerFactory.getLogger(SupervisionHandler.class);
 
     private static final String CONTROL_LOOP_CANNOT_TRANSITION_FROM_STATE = "Control loop can't transition from state ";
@@ -69,59 +57,13 @@ public class SupervisionHandler extends ControlLoopHandler {
     private static final String TO_STATE = " to state ";
     private static final String AND_TRANSITIONING_TO_STATE = " and transitioning to state ";
 
-    private ControlLoopProvider controlLoopProvider;
-    private ParticipantProvider participantProvider;
+    private final ControlLoopProvider controlLoopProvider;
+    private final ParticipantProvider participantProvider;
     private final MonitoringProvider monitoringProvider;
-    private final CommissioningProvider commissioningProvider;
 
     // Publishers for participant communication
-    private ParticipantStateChangePublisher stateChangePublisher;
-    private ParticipantControlLoopUpdatePublisher controlLoopUpdatePublisher;
-    private ParticipantControlLoopStateChangePublisher controlLoopStateChangePublisher;
-
-    private long supervisionScannerIntervalSec;
-    private long participantStateChangeIntervalSec;
-    private long participantClUpdateIntervalSec;
-    private long participantClStateChangeIntervalSec;
-
-    // Database scanner
-    private SupervisionScanner scanner;
-
-    /**
-     * Used to manage the services.
-     */
-    private ServiceManager manager;
-    private ServiceManager publisherManager;
-
-    /**
-     * Create a handler.
-     *
-     * @param clRuntimeParameterGroup the parameters for the control loop runtime
-     * @param monitoringProvider the MonitoringProvider
-     * @param commissioningProvider the CommissioningProvider
-     */
-    public SupervisionHandler(ClRuntimeParameterGroup clRuntimeParameterGroup, MonitoringProvider monitoringProvider,
-            CommissioningProvider commissioningProvider) {
-        super(clRuntimeParameterGroup.getDatabaseProviderParameters());
-        this.monitoringProvider = monitoringProvider;
-        this.commissioningProvider = commissioningProvider;
-
-        // @formatter:off
-        this.manager = new ServiceManager()
-                        .addAction("ControlLoop Provider",
-                            () -> controlLoopProvider = new ControlLoopProvider(getDatabaseProviderParameters()),
-                            () -> controlLoopProvider = null)
-                        .addAction("Participant Provider",
-                            () -> participantProvider = new ParticipantProvider(getDatabaseProviderParameters()),
-                            () -> participantProvider = null);
-        // @formatter:on
-
-        supervisionScannerIntervalSec = clRuntimeParameterGroup.getSupervisionScannerIntervalSec();
-        participantStateChangeIntervalSec = clRuntimeParameterGroup.getParticipantClStateChangeIntervalSec();
-        participantClUpdateIntervalSec = clRuntimeParameterGroup.getParticipantClUpdateIntervalSec();
-        participantClStateChangeIntervalSec = clRuntimeParameterGroup.getParticipantClStateChangeIntervalSec();
-
-    }
+    private final ParticipantControlLoopUpdatePublisher controlLoopUpdatePublisher;
+    private final ParticipantControlLoopStateChangePublisher controlLoopStateChangePublisher;
 
     /**
      * Supervision trigger called when a command is issued on control loops.
@@ -155,55 +97,6 @@ public class SupervisionHandler extends ControlLoopHandler {
         }
     }
 
-    @Override
-    public void startAndRegisterListeners(MessageTypeDispatcher msgDispatcher) {
-        msgDispatcher.register(ParticipantMessageType.PARTICIPANT_STATUS.name(), new ParticipantStatusListener(this));
-    }
-
-    @Override
-    public void startAndRegisterPublishers(List<TopicSink> topicSinks) {
-        // @formatter:off
-        this.publisherManager = new ServiceManager()
-                .addAction("Supervision scanner",
-                        () -> scanner =
-                        new SupervisionScanner(controlLoopProvider, supervisionScannerIntervalSec),
-                        () -> scanner.close())
-                .addAction("ControlLoopUpdate publisher",
-                        () -> controlLoopUpdatePublisher =
-                        new ParticipantControlLoopUpdatePublisher(topicSinks, participantClUpdateIntervalSec),
-                        () -> controlLoopUpdatePublisher.terminate())
-                .addAction("StateChange Publisher",
-                        () -> stateChangePublisher =
-                        new ParticipantStateChangePublisher(topicSinks, participantStateChangeIntervalSec),
-                        () -> stateChangePublisher.terminate())
-                .addAction("ControlLoopStateChange Publisher",
-                        () -> controlLoopStateChangePublisher =
-                        new ParticipantControlLoopStateChangePublisher(topicSinks, participantClStateChangeIntervalSec),
-                        () -> controlLoopStateChangePublisher.terminate());
-        // @formatter:on
-        try {
-            publisherManager.start();
-        } catch (final ServiceManagerException exp) {
-            throw new ControlLoopRuntimeException(Status.INTERNAL_SERVER_ERROR,
-                    "Supervision handler start of publishers or scanner failed", exp);
-        }
-    }
-
-    @Override
-    public void stopAndUnregisterPublishers() {
-        try {
-            publisherManager.stop();
-        } catch (final ServiceManagerException exp) {
-            throw new ControlLoopRuntimeException(Status.INTERNAL_SERVER_ERROR,
-                    "Supervision handler stop of publishers or scanner failed", exp);
-        }
-    }
-
-    @Override
-    public void stopAndUnregisterListeners(MessageTypeDispatcher msgDispatcher) {
-        msgDispatcher.unregister(ParticipantMessageType.PARTICIPANT_STATUS.name());
-    }
-
     /**
      * Handle a ParticipantStatus message from a participant.
      *
@@ -270,7 +163,7 @@ public class SupervisionHandler extends ControlLoopHandler {
             case UNINITIALISED2PASSIVE:
             case PASSIVE:
                 controlLoop.setState(ControlLoopState.PASSIVE2UNINITIALISED);
-                sendControlLoopStateChange(controlLoop);
+                controlLoopStateChangePublisher.send(controlLoop);
                 break;
 
             case PASSIVE2UNINITIALISED:
@@ -294,7 +187,7 @@ public class SupervisionHandler extends ControlLoopHandler {
                 break;
             case UNINITIALISED:
                 controlLoop.setState(ControlLoopState.UNINITIALISED2PASSIVE);
-                sendControlLoopUpdate(controlLoop);
+                controlLoopUpdatePublisher.send(controlLoop);
                 break;
 
             case UNINITIALISED2PASSIVE:
@@ -305,7 +198,7 @@ public class SupervisionHandler extends ControlLoopHandler {
 
             case RUNNING:
                 controlLoop.setState(ControlLoopState.RUNNING2PASSIVE);
-                sendControlLoopStateChange(controlLoop);
+                controlLoopStateChangePublisher.send(controlLoop);
                 break;
 
             default:
@@ -329,7 +222,7 @@ public class SupervisionHandler extends ControlLoopHandler {
 
             case PASSIVE:
                 controlLoop.setState(ControlLoopState.PASSIVE2RUNNING);
-                sendControlLoopStateChange(controlLoop);
+                controlLoopStateChangePublisher.send(controlLoop);
                 break;
 
             default:
@@ -339,25 +232,6 @@ public class SupervisionHandler extends ControlLoopHandler {
         }
     }
 
-    private void sendControlLoopUpdate(ControlLoop controlLoop) throws PfModelException {
-        var pclu = new ParticipantControlLoopUpdate();
-        pclu.setControlLoopId(controlLoop.getKey().asIdentifier());
-        pclu.setControlLoop(controlLoop);
-        // TODO: We should look up the correct TOSCA node template here for the control loop
-        // Tiny hack implemented to return the tosca service template entry from the database and be passed onto dmaap
-        pclu.setControlLoopDefinition(commissioningProvider.getToscaServiceTemplate(null, null));
-        controlLoopUpdatePublisher.send(pclu);
-    }
-
-    private void sendControlLoopStateChange(ControlLoop controlLoop) {
-        var clsc = new ParticipantControlLoopStateChange();
-        clsc.setControlLoopId(controlLoop.getKey().asIdentifier());
-        clsc.setMessageId(UUID.randomUUID());
-        clsc.setOrderedState(controlLoop.getOrderedState());
-
-        controlLoopStateChangePublisher.send(clsc);
-    }
-
     private void superviseParticipant(ParticipantStatus participantStatusMessage)
             throws PfModelException, ControlLoopException {
         if (participantStatusMessage.getParticipantId() == null) {
@@ -427,26 +301,6 @@ public class SupervisionHandler extends ControlLoopHandler {
         }
     }
 
-    @Override
-    public void startProviders() {
-        try {
-            manager.start();
-        } catch (final ServiceManagerException exp) {
-            throw new ControlLoopRuntimeException(Status.INTERNAL_SERVER_ERROR,
-                    "Supervision handler start of providers failed", exp);
-        }
-    }
-
-    @Override
-    public void stopProviders() {
-        try {
-            manager.stop();
-        } catch (final ServiceManagerException exp) {
-            throw new ControlLoopRuntimeException(Status.INTERNAL_SERVER_ERROR,
-                    "Supervision handler stop of providers failed", exp);
-        }
-    }
-
     private void exceptionOccured(Response.Status status, String reason) throws ControlLoopException {
         throw new ControlLoopException(status, reason);
     }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionScanner.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionScanner.java
index 4f3faf8af..68f5830c0 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionScanner.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/SupervisionScanner.java
@@ -27,13 +27,16 @@ import java.util.concurrent.TimeUnit;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
 import org.onap.policy.clamp.controlloop.models.controlloop.persistence.provider.ControlLoopProvider;
+import org.onap.policy.clamp.controlloop.runtime.main.parameters.ClRuntimeParameterGroup;
 import org.onap.policy.models.base.PfModelException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
 
 /**
  * This class is used to scan the control loops in the database and check if they are in the correct state.
  */
+@Component
 public class SupervisionScanner implements Runnable, Closeable {
     private static final Logger LOGGER = LoggerFactory.getLogger(SupervisionScanner.class);
 
@@ -43,15 +46,17 @@ public class SupervisionScanner implements Runnable, Closeable {
     /**
      * Constructor for instantiating SupervisionScanner.
      *
+     * @param clRuntimeParameterGroup the parameters for the control loop runtime
      * @param controlLoopProvider the provider to use to read control loops from the database
-     * @param interval time interval to perform scans
      */
-    public SupervisionScanner(final ControlLoopProvider controlLoopProvider, final long interval) {
+    public SupervisionScanner(final ControlLoopProvider controlLoopProvider,
+            ClRuntimeParameterGroup clRuntimeParameterGroup) {
         this.controlLoopProvider = controlLoopProvider;
 
         // Kick off the timer
         timerPool = makeTimerPool();
-        timerPool.scheduleAtFixedRate(this, 0, interval, TimeUnit.SECONDS);
+        timerPool.scheduleAtFixedRate(this, 0, clRuntimeParameterGroup.getSupervisionScannerIntervalSec(),
+                TimeUnit.SECONDS);
     }
 
     @Override
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/AbstractParticipantPublisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/AbstractParticipantPublisher.java
index c54856101..3c87b05b4 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/AbstractParticipantPublisher.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/AbstractParticipantPublisher.java
@@ -21,35 +21,17 @@
 package org.onap.policy.clamp.controlloop.runtime.supervision.comm;
 
 import java.util.List;
-import lombok.Getter;
+import javax.ws.rs.core.Response.Status;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessage;
+import org.onap.policy.clamp.controlloop.runtime.config.messaging.Publisher;
 import org.onap.policy.common.endpoints.event.comm.TopicSink;
 import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
 
-public abstract class AbstractParticipantPublisher<E extends ParticipantMessage> {
+public abstract class AbstractParticipantPublisher<E extends ParticipantMessage> implements Publisher {
 
-    private final TopicSinkClient topicSinkClient;
-
-    @Getter
-    private final long intervalSec;
-
-    /**
-     * Constructor.
-     *
-     * @param topicSinks the topic sinks
-     * @param intervalSec time interval to send ParticipantStateChange messages
-     */
-    protected AbstractParticipantPublisher(final List<TopicSink> topicSinks, long intervalSec) {
-        this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
-        this.intervalSec = intervalSec;
-    }
-
-    /**
-     * Terminates the current timer.
-     */
-    public void terminate() {
-        // Nothing to terminate, this publisher does not have a timer
-    }
+    private TopicSinkClient topicSinkClient;
+    private boolean active = false;
 
     /**
      * Method to send Participant message to participants on demand.
@@ -57,6 +39,24 @@ public abstract class AbstractParticipantPublisher<E extends ParticipantMessage>
      * @param participantMessage the Participant message
      */
     public void send(final E participantMessage) {
+        if (!active) {
+            throw new ControlLoopRuntimeException(Status.NOT_ACCEPTABLE, "Not Active!");
+        }
         topicSinkClient.send(participantMessage);
     }
+
+
+    @Override
+    public void active(List<TopicSink> topicSinks) {
+        if (topicSinks.size() != 1) {
+            throw new IllegalArgumentException("Topic Sink must be one");
+        }
+        this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
+        active = true;
+    }
+
+    @Override
+    public void stop() {
+        active = false;
+    }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopStateChangePublisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopStateChangePublisher.java
index c9d0a4fe4..734ccb842 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopStateChangePublisher.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopStateChangePublisher.java
@@ -20,23 +20,29 @@
 
 package org.onap.policy.clamp.controlloop.runtime.supervision.comm;
 
-import java.util.List;
+import java.util.UUID;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopStateChange;
-import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.springframework.stereotype.Component;
 
 /**
  * This class is used to send ParticipantControlLoopStateChangePublisher messages to participants on DMaaP.
  */
+@Component
 public class ParticipantControlLoopStateChangePublisher
         extends AbstractParticipantPublisher<ParticipantControlLoopStateChange> {
 
     /**
-     * Constructor for instantiating ParticipantControlLoopStateChangePublisherPublisher.
+     * Send ControlLoopStateChange to Participant.
      *
-     * @param topicSinks the topic sinks
-     * @param interval time interval to send ParticipantControlLoopStateChangePublisher messages
+     * @param controlLoop the ControlLoop
      */
-    public ParticipantControlLoopStateChangePublisher(final List<TopicSink> topicSinks, final long interval) {
-        super(topicSinks, interval);
+    public void send(ControlLoop controlLoop) {
+        var clsc = new ParticipantControlLoopStateChange();
+        clsc.setControlLoopId(controlLoop.getKey().asIdentifier());
+        clsc.setMessageId(UUID.randomUUID());
+        clsc.setOrderedState(controlLoop.getOrderedState());
+
+        super.send(clsc);
     }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopUpdatePublisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopUpdatePublisher.java
index fbbd95fbc..8d40c5e69 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopUpdatePublisher.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantControlLoopUpdatePublisher.java
@@ -20,22 +20,42 @@
 
 package org.onap.policy.clamp.controlloop.runtime.supervision.comm;
 
-import java.util.List;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
-import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.clamp.controlloop.runtime.commissioning.CommissioningProvider;
+import org.onap.policy.models.base.PfModelException;
+import org.springframework.stereotype.Component;
 
 /**
  * This class is used to send ParticipantControlLoopUpdate messages to participants on DMaaP.
  */
+@Component
 public class ParticipantControlLoopUpdatePublisher extends AbstractParticipantPublisher<ParticipantControlLoopUpdate> {
 
+    private final CommissioningProvider commissioningProvider;
+
+    /**
+     * Constructor.
+     *
+     * @param commissioningProvider the CommissioningProvider
+     */
+    public ParticipantControlLoopUpdatePublisher(CommissioningProvider commissioningProvider) {
+        this.commissioningProvider = commissioningProvider;
+    }
+
     /**
-     * Constructor for instantiating ParticipantUpdatePublisher.
+     * Send ControlLoopUpdate to Participant.
      *
-     * @param topicSinks the topic sinks
-     * @param interval time interval to send ParticipantControlLoopUpdate messages
+     * @param controlLoop the ControlLoop
+     * @throws PfModelException on errors getting the Control Loop Definition
      */
-    public ParticipantControlLoopUpdatePublisher(final List<TopicSink> topicSinks, final long interval) {
-        super(topicSinks, interval);
+    public void send(ControlLoop controlLoop) throws PfModelException {
+        var pclu = new ParticipantControlLoopUpdate();
+        pclu.setControlLoopId(controlLoop.getKey().asIdentifier());
+        pclu.setControlLoop(controlLoop);
+        // TODO: We should look up the correct TOSCA node template here for the control loop
+        // Tiny hack implemented to return the tosca service template entry from the database and be passed onto dmaap
+        pclu.setControlLoopDefinition(commissioningProvider.getToscaServiceTemplate(null, null));
+        super.send(pclu);
     }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java
index 20cdea6f4..b63cbdf03 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStateChangePublisher.java
@@ -20,22 +20,13 @@
 
 package org.onap.policy.clamp.controlloop.runtime.supervision.comm;
 
-import java.util.List;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStateChange;
-import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.springframework.stereotype.Component;
 
 /**
  * This class is used to send ParticipantStateChange messages to participants on DMaaP.
  */
+@Component
 public class ParticipantStateChangePublisher extends AbstractParticipantPublisher<ParticipantStateChange> {
 
-    /**
-     * Constructor for instantiating ParticipantStateChangePublisher.
-     *
-     * @param topicSinks the topic sinks
-     * @param interval time interval to send ParticipantStateChange messages
-     */
-    public ParticipantStateChangePublisher(List<TopicSink> topicSinks, long interval) {
-        super(topicSinks, interval);
-    }
 }
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStatusListener.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStatusListener.java
index 88b838613..8fa076240 100644
--- a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStatusListener.java
+++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/supervision/comm/ParticipantStatusListener.java
@@ -20,18 +20,22 @@
 
 package org.onap.policy.clamp.controlloop.runtime.supervision.comm;
 
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStatus;
+import org.onap.policy.clamp.controlloop.runtime.config.messaging.Listener;
 import org.onap.policy.clamp.controlloop.runtime.supervision.SupervisionHandler;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.endpoints.listeners.ScoListener;
 import org.onap.policy.common.utils.coder.StandardCoderObject;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
 
 /**
  * Listener for ParticipantStatus messages sent by participants.
  */
-public class ParticipantStatusListener extends ScoListener<ParticipantStatus> {
+@Component
+public class ParticipantStatusListener extends ScoListener<ParticipantStatus> implements Listener {
     private static final Logger LOGGER = LoggerFactory.getLogger(ParticipantStatusListener.class);
 
     private final SupervisionHandler supervisionHandler;
@@ -50,4 +54,14 @@ public class ParticipantStatusListener extends ScoListener<ParticipantStatus> {
         LOGGER.debug("ParticipantStatus message received from participant - {}", participantStatusMessage);
         supervisionHandler.handleParticipantStatusMessage(participantStatusMessage);
     }
+
+    @Override
+    public String getType() {
+        return ParticipantMessageType.PARTICIPANT_STATUS.name();
+    }
+
+    @Override
+    public ScoListener<ParticipantStatus> getScoListener() {
+        return this;
+    }
 }