Remove ParticipantStateChange message

ParticipantStateChange message is no longer needed, as Runtime is not
allowed to change the state of the participant.
Following Wiki doesnot list ParticipantStateChange message
https://wiki.onap.org/display/DW/The+CLAMP+Control+Loop+Participant+Protocol

Issue-ID: POLICY-3510
Signed-off-by: Sirisha_Manchikanti <sirisha.manchikanti@est.tech>
Change-Id: I06382efa52b1131394518c85d7bc6ce50dd2bbb5

3 files changed, 0 insertions, 132 deletions

diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/comm/ParticipantStateChangeListener.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/comm/ParticipantStateChangeListener.java
deleted file mode 100644
index ec6548a7c..000000000
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/comm/ParticipantStateChangeListener.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*-
- * ============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.participant.intermediary.comm;
-
-import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStateChange;
-import org.onap.policy.clamp.controlloop.participant.intermediary.handler.ParticipantHandler;
-import org.springframework.stereotype.Component;
-
-/**
- * Listener for Participant State Change messages sent by CLAMP.
- *
- */
-@Component
-public class ParticipantStateChangeListener extends ParticipantListener<ParticipantStateChange> {
-
-    /**
-     * Constructs the object.
-     *
-     * @param participantHandler the handler for managing the state of the participant
-     */
-    public ParticipantStateChangeListener(final ParticipantHandler participantHandler) {
-        super(ParticipantStateChange.class, participantHandler, participantHandler::handleParticipantStateChange);
-    }
-}
diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/IntermediaryActivator.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/IntermediaryActivator.java
index 38674896b..68ee93f4f 100644
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/IntermediaryActivator.java
+++ b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/IntermediaryActivator.java
@@ -30,7 +30,6 @@ import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ControlLo
 import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantDeregisterAckListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantHealthCheckListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantRegisterAckListener;
-import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantStateChangeListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantUpdateListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantParameters;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
@@ -120,9 +119,6 @@ public class IntermediaryActivator extends ServiceManagerContainer implements Cl
     private void registerMsgDispatcher() {
         MessageTypeDispatcher msgDispatcher = applicationContext.getBean(MessageTypeDispatcher.class);
 
-        msgDispatcher.register(ParticipantMessageType.PARTICIPANT_STATE_CHANGE.name(),
-                applicationContext.getBean(ParticipantStateChangeListener.class));
-
         msgDispatcher.register(ParticipantMessageType.PARTICIPANT_HEALTH_CHECK.name(),
                 applicationContext.getBean(ParticipantHealthCheckListener.class));
 
diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ParticipantHandler.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ParticipantHandler.java
index 4842c3edd..5b9b74092 100644
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ParticipantHandler.java
+++ b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ParticipantHandler.java
@@ -42,7 +42,6 @@ import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.Parti
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantRegisterAck;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantResponseDetails;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantResponseStatus;
-import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStateChange;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStatus;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantUpdate;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantUpdateAck;
@@ -98,46 +97,6 @@ public class ParticipantHandler implements Closeable {
     }
 
     /**
-     * Method which handles a participant state change event from clamp.
-     *
-     * @param stateChangeMsg participant state change message
-     */
-    public void handleParticipantStateChange(final ParticipantStateChange stateChangeMsg) {
-
-        if (!stateChangeMsg.appliesTo(participantType, participantId)) {
-            return;
-        }
-
-        var response = new ParticipantResponseDetails(stateChangeMsg);
-
-        switch (stateChangeMsg.getState()) {
-            case PASSIVE:
-                handlePassiveState(response);
-                break;
-            case ACTIVE:
-                handleActiveState(response);
-                break;
-            case SAFE:
-                handleSafeState(response);
-                break;
-            case TEST:
-                handleTestState(response);
-                break;
-            case TERMINATED:
-                handleTerminatedState(response);
-                break;
-            default:
-                LOGGER.debug("StateChange message has no state, state is null {}", stateChangeMsg.getParticipantId());
-                response.setResponseStatus(ParticipantResponseStatus.FAIL);
-                response.setResponseMessage(
-                        "StateChange message has invalid state for participantId " + stateChangeMsg.getParticipantId());
-                break;
-        }
-
-        sender.sendResponse(response);
-    }
-
-    /**
      * Method which handles a participant health check event from clamp.
      *
      * @param healthCheckMsg participant health check message
@@ -168,51 +127,6 @@ public class ParticipantHandler implements Closeable {
         controlLoopHandler.handleControlLoopStateChange(stateChangeMsg);
     }
 
-    /**
-     * Method to handle when the new state from participant is active.
-     *
-     * @param response participant response
-     */
-    private void handleActiveState(final ParticipantResponseDetails response) {
-        handleStateChange(ParticipantState.ACTIVE, response);
-    }
-
-    /**
-     * Method to handle when the new state from participant is passive.
-     *
-     * @param response participant response
-     */
-    private void handlePassiveState(final ParticipantResponseDetails response) {
-        handleStateChange(ParticipantState.PASSIVE, response);
-    }
-
-    /**
-     * Method to handle when the new state from participant is safe.
-     *
-     * @param response participant response
-     */
-    private void handleSafeState(final ParticipantResponseDetails response) {
-        handleStateChange(ParticipantState.SAFE, response);
-    }
-
-    /**
-     * Method to handle when the new state from participant is TEST.
-     *
-     * @param response participant response
-     */
-    private void handleTestState(final ParticipantResponseDetails response) {
-        handleStateChange(ParticipantState.TEST, response);
-    }
-
-    /**
-     * Method to handle when the new state from participant is Terminated.
-     *
-     * @param response participant response
-     */
-    private void handleTerminatedState(final ParticipantResponseDetails response) {
-        handleStateChange(ParticipantState.TERMINATED, response);
-    }
-
     private void handleStateChange(ParticipantState newParticipantState, ParticipantResponseDetails response) {
         if (state.equals(newParticipantState)) {
             response.setResponseStatus(ParticipantResponseStatus.SUCCESS);