Fix CL state change failures on participants

Issue-ID: POLICY-3685
Signed-off-by: zrrmmua <ramesh.murugan.iyer@est.tech>
Change-Id: Ibec537d1ab55fd921481294fc3e193d7f1dc7912

2 files changed, 29 insertions, 1 deletions

diff --git a/participant/participant-impl/participant-impl-http/src/main/java/org/onap/policy/clamp/controlloop/participant/http/main/handler/ControlLoopElementHandler.java b/participant/participant-impl/participant-impl-http/src/main/java/org/onap/policy/clamp/controlloop/participant/http/main/handler/ControlLoopElementHandler.java
index cfe786865..86a864efc 100644
--- a/participant/participant-impl/participant-impl-http/src/main/java/org/onap/policy/clamp/controlloop/participant/http/main/handler/ControlLoopElementHandler.java
+++ b/participant/participant-impl/participant-impl-http/src/main/java/org/onap/policy/clamp/controlloop/participant/http/main/handler/ControlLoopElementHandler.java
@@ -37,6 +37,7 @@ import org.apache.commons.lang3.tuple.Pair;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
 import org.onap.policy.clamp.controlloop.participant.http.main.models.ConfigRequest;
 import org.onap.policy.clamp.controlloop.participant.http.main.webclient.ClHttpClient;
 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ControlLoopElementListener;
@@ -90,7 +91,26 @@ public class ControlLoopElementHandler implements ControlLoopElementListener, Cl
     @Override
     public void controlLoopElementStateChange(ToscaConceptIdentifier controlLoopId, UUID controlLoopElementId,
             ControlLoopState currentState, ControlLoopOrderedState newState) throws PfModelException {
-        // Implementation not needed for http participant
+        switch (newState) {
+            case UNINITIALISED:
+                intermediaryApi.updateControlLoopElementState(controlLoopId,
+                        controlLoopElementId, newState, ControlLoopState.UNINITIALISED,
+                        ParticipantMessageType.CONTROL_LOOP_STATE_CHANGE);
+                break;
+            case PASSIVE:
+                intermediaryApi.updateControlLoopElementState(controlLoopId,
+                        controlLoopElementId, newState, ControlLoopState.PASSIVE,
+                        ParticipantMessageType.CONTROL_LOOP_STATE_CHANGE);
+                break;
+            case RUNNING:
+                intermediaryApi.updateControlLoopElementState(controlLoopId,
+                        controlLoopElementId, newState, ControlLoopState.RUNNING,
+                        ParticipantMessageType.CONTROL_LOOP_STATE_CHANGE);
+                break;
+            default:
+                LOGGER.warn("Cannot transition from state {} to state {}", currentState, newState);
+                break;
+        }
     }
 
     /**
@@ -108,6 +128,9 @@ public class ControlLoopElementHandler implements ControlLoopElementListener, Cl
                 .getValidator().validate(configRequest);
             if (violations.isEmpty()) {
                 invokeHttpClient(configRequest);
+                intermediaryApi.updateControlLoopElementState(controlLoopId, element.getId(),
+                        ControlLoopOrderedState.PASSIVE, ControlLoopState.PASSIVE,
+                        ParticipantMessageType.CONTROL_LOOP_STATE_CHANGE);
             } else {
                 LOGGER.error("Violations found in the config request parameters: {}", violations);
                 throw new ValidationException("Constraint violations in the config request");
diff --git a/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java b/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java
index 0de25072d..d1556ea08 100644
--- a/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java
+++ b/participant/participant-impl/participant-impl-http/src/test/java/handler/ClElementHandlerTest.java
@@ -29,9 +29,11 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.InjectMocks;
+import org.mockito.Mock;
 import org.mockito.Spy;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
 import org.onap.policy.clamp.controlloop.participant.http.main.handler.ControlLoopElementHandler;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
@@ -46,6 +48,9 @@ class ClElementHandlerTest {
     @Spy
     private ControlLoopElementHandler controlLoopElementHandler = new ControlLoopElementHandler();
 
+    @Mock
+    private ParticipantIntermediaryApi participantIntermediaryApi;
+
     private CommonTestData commonTestData = new CommonTestData();
 
     private static ToscaServiceTemplate serviceTemplate;