Verify participant Simulator and messages

Add missing ControlLoopElementHandler in participant Simulator
and fix some message issues.

Issue-ID: POLICY-3628
Change-Id: I9f058c19aa18e070bac6ccaf98fdf7600d66d71e
Signed-off-by: FrancescoFioraEst <francesco.fiora@est.tech>

12 files changed, 294 insertions, 236 deletions

diff --git a/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java b/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java
index cf71248c3..0bad5ed96 100644
--- a/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java
+++ b/participant/participant-impl/participant-impl-http/src/test/java/utils/ToscaUtils.java
@@ -20,6 +20,8 @@
 
 package utils;
 
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 import org.onap.policy.common.utils.coder.YamlJsonTranslator;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
@@ -27,7 +29,8 @@ import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 /**
  * Util class for Test scope.
  */
-public class ToscaUtils {
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class ToscaUtils {
 
     private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
     private static final String TOSCA_TEMPLATE_YAML = "src/test/resources/HttpParticipantConfig.yaml";
diff --git a/participant/participant-impl/participant-impl-kubernetes/src/test/java/org/onap/policy/clamp/controlloop/participant/kubernetes/utils/TestUtils.java b/participant/participant-impl/participant-impl-kubernetes/src/test/java/org/onap/policy/clamp/controlloop/participant/kubernetes/utils/TestUtils.java
index b01dfa28e..af514f8aa 100644
--- a/participant/participant-impl/participant-impl-kubernetes/src/test/java/org/onap/policy/clamp/controlloop/participant/kubernetes/utils/TestUtils.java
+++ b/participant/participant-impl/participant-impl-kubernetes/src/test/java/org/onap/policy/clamp/controlloop/participant/kubernetes/utils/TestUtils.java
@@ -21,11 +21,14 @@
 
 package org.onap.policy.clamp.controlloop.participant.kubernetes.utils;
 
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 import org.onap.policy.common.utils.coder.YamlJsonTranslator;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 
-public class TestUtils {
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class TestUtils {
 
     private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
     private static final String TOSCA_TEMPLATE_YAML = "src/test/resources/servicetemplates/KubernetesHelm.yaml";
diff --git a/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java b/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java
index fe7cb3c96..25da5a3e9 100644
--- a/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java
+++ b/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java
@@ -31,6 +31,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 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.ControlLoopElementDefinition;
@@ -38,6 +40,7 @@ import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantDefinition;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUpdates;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUtils;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ControlLoopStateChange;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ControlLoopUpdate;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantUpdate;
@@ -54,18 +57,16 @@ import org.onap.policy.models.tosca.authorative.concepts.ToscaTopologyTemplate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class TestListenerUtils {
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class TestListenerUtils {
 
     private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
     private static final Coder CODER = new StandardCoder();
     static CommonTestData commonTestData = new CommonTestData();
     private static final Logger LOGGER = LoggerFactory.getLogger(TestListenerUtils.class);
-    private static final String CONTROL_LOOP_ELEMENT = "org.onap.policy.clamp.controlloop.ControlLoopElement";
     private static final String POLICY_TYPE_ID = "policy_type_id";
     private static final String POLICY_ID = "policy_id";
 
-    private TestListenerUtils() {}
-
     /**
      * Method to create a controlLoop from a yaml file.
      *
@@ -138,10 +139,8 @@ public class TestListenerUtils {
      */
     public static ControlLoopUpdate createControlLoopUpdateMsg() {
         final ControlLoopUpdate clUpdateMsg = new ControlLoopUpdate();
-        ToscaConceptIdentifier controlLoopId =
-            new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
-        ToscaConceptIdentifier participantId =
-            new ToscaConceptIdentifier("org.onap.PM_Policy", "0.0.0");
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_Policy", "0.0.0");
 
         clUpdateMsg.setControlLoopId(controlLoopId);
         clUpdateMsg.setParticipantId(participantId);
@@ -154,23 +153,18 @@ public class TestListenerUtils {
         Map<String, ToscaNodeTemplate> nodeTemplatesMap =
                 toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
         for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
-            if (checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(), toscaServiceTemplate)) {
+            if (ParticipantUtils.checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(),
+                    toscaServiceTemplate)) {
                 ControlLoopElement clElement = new ControlLoopElement();
                 clElement.setId(UUID.randomUUID());
-                ToscaConceptIdentifier clParticipantType;
-                try {
-                    clParticipantType = CODER.decode(
-                            toscaInputEntry.getValue().getProperties().get("participantType").toString(),
-                            ToscaConceptIdentifier.class);
-                } catch (CoderException e) {
-                    throw new RuntimeException("cannot get ParticipantType from toscaNodeTemplate", e);
-                }
+                var clParticipantType =
+                        ParticipantUtils.findParticipantType(toscaInputEntry.getValue().getProperties());
 
                 clElement.setParticipantId(clParticipantType);
                 clElement.setParticipantType(clParticipantType);
 
-                clElement.setDefinition(new ToscaConceptIdentifier(toscaInputEntry.getKey(),
-                    toscaInputEntry.getValue().getVersion()));
+                clElement.setDefinition(
+                        new ToscaConceptIdentifier(toscaInputEntry.getKey(), toscaInputEntry.getValue().getVersion()));
                 clElement.setState(ControlLoopState.UNINITIALISED);
                 clElement.setDescription(toscaInputEntry.getValue().getDescription());
                 clElement.setOrderedState(ControlLoopOrderedState.PASSIVE);
@@ -187,26 +181,10 @@ public class TestListenerUtils {
         return clUpdateMsg;
     }
 
-    private static boolean checkIfNodeTemplateIsControlLoopElement(ToscaNodeTemplate nodeTemplate,
-            ToscaServiceTemplate toscaServiceTemplate) {
-        if (nodeTemplate.getType().contains(CONTROL_LOOP_ELEMENT)) {
-            return true;
-        } else {
-            var nodeType = toscaServiceTemplate.getNodeTypes().get(nodeTemplate.getType());
-            if (nodeType != null) {
-                var derivedFrom = nodeType.getDerivedFrom();
-                if (derivedFrom != null) {
-                    return derivedFrom.contains(CONTROL_LOOP_ELEMENT) ? true : false;
-                }
-            }
-        }
-        return false;
-    }
-
     private static void populateToscaNodeTemplateFragment(ControlLoopElement clElement,
             ToscaServiceTemplate toscaServiceTemplate) {
-        ToscaNodeTemplate toscaNodeTemplate = toscaServiceTemplate
-            .getToscaTopologyTemplate().getNodeTemplates().get(clElement.getDefinition().getName());
+        ToscaNodeTemplate toscaNodeTemplate = toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates()
+                .get(clElement.getDefinition().getName());
         // If the ControlLoopElement has policy_type_id or policy_id, identify it as a PolicyControlLoopElement
         // and pass respective PolicyTypes or Policies as part of toscaServiceTemplateFragment
         if ((toscaNodeTemplate.getProperties().get(POLICY_TYPE_ID) != null)
@@ -229,7 +207,7 @@ public class TestListenerUtils {
     }
 
     private static void prepareParticipantUpdateForControlLoop(ControlLoopElement clElement,
-        List<ParticipantUpdates> participantUpdates) {
+            List<ParticipantUpdates> participantUpdates) {
         if (participantUpdates.isEmpty()) {
             participantUpdates.add(getControlLoopElementList(clElement));
         } else {
@@ -263,8 +241,8 @@ public class TestListenerUtils {
     public static ParticipantUpdate createParticipantUpdateMsg() {
         final ParticipantUpdate participantUpdateMsg = new ParticipantUpdate();
         ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_Policy", "1.0.0");
-        ToscaConceptIdentifier participantType = new ToscaConceptIdentifier(
-                "org.onap.policy.controlloop.PolicyControlLoopParticipant", "2.3.1");
+        ToscaConceptIdentifier participantType =
+                new ToscaConceptIdentifier("org.onap.policy.controlloop.PolicyControlLoopParticipant", "2.3.1");
 
         participantUpdateMsg.setParticipantId(participantId);
         participantUpdateMsg.setTimestamp(Instant.now());
@@ -277,19 +255,14 @@ public class TestListenerUtils {
         TestListenerUtils.addPoliciesToToscaServiceTemplate(toscaServiceTemplate);
 
         List<ParticipantDefinition> participantDefinitionUpdates = new ArrayList<>();
-        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry :
-            toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates().entrySet()) {
-            if (checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(), toscaServiceTemplate)) {
-                ToscaConceptIdentifier clParticipantType;
-                try {
-                    clParticipantType = CODER.decode(
-                            toscaInputEntry.getValue().getProperties().get("participantType").toString(),
-                            ToscaConceptIdentifier.class);
-                } catch (CoderException e) {
-                    throw new RuntimeException("cannot get ParticipantType from toscaNodeTemplate", e);
-                }
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : toscaServiceTemplate.getToscaTopologyTemplate()
+                .getNodeTemplates().entrySet()) {
+            if (ParticipantUtils.checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(),
+                    toscaServiceTemplate)) {
+                var clParticipantType =
+                        ParticipantUtils.findParticipantType(toscaInputEntry.getValue().getProperties());
                 prepareParticipantDefinitionUpdate(clParticipantType, toscaInputEntry.getKey(),
-                    toscaInputEntry.getValue(), participantDefinitionUpdates);
+                        toscaInputEntry.getValue(), participantDefinitionUpdates);
             }
         }
 
@@ -298,17 +271,16 @@ public class TestListenerUtils {
     }
 
     private static void prepareParticipantDefinitionUpdate(ToscaConceptIdentifier clParticipantType, String entryKey,
-        ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates) {
+            ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates) {
 
         var clDefinition = new ControlLoopElementDefinition();
-        clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(
-            entryKey, entryValue.getVersion()));
+        clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(entryKey, entryValue.getVersion()));
         clDefinition.setControlLoopElementToscaNodeTemplate(entryValue);
         List<ControlLoopElementDefinition> controlLoopElementDefinitionList = new ArrayList<>();
 
         if (participantDefinitionUpdates.isEmpty()) {
-            participantDefinitionUpdates.add(getParticipantDefinition(clDefinition, clParticipantType,
-                controlLoopElementDefinitionList));
+            participantDefinitionUpdates
+                    .add(getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
         } else {
             boolean participantExists = false;
             for (ParticipantDefinition participantDefinitionUpdate : participantDefinitionUpdates) {
@@ -318,15 +290,15 @@ public class TestListenerUtils {
                 }
             }
             if (!participantExists) {
-                participantDefinitionUpdates.add(getParticipantDefinition(clDefinition, clParticipantType,
-                    controlLoopElementDefinitionList));
+                participantDefinitionUpdates.add(
+                        getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
             }
         }
     }
 
     private static ParticipantDefinition getParticipantDefinition(ControlLoopElementDefinition clDefinition,
-        ToscaConceptIdentifier clParticipantType,
-        List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
+            ToscaConceptIdentifier clParticipantType,
+            List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
         ParticipantDefinition participantDefinition = new ParticipantDefinition();
         participantDefinition.setParticipantType(clParticipantType);
         controlLoopElementDefinitionList.add(clDefinition);
@@ -369,8 +341,7 @@ public class TestListenerUtils {
         return toscaServiceTemplate;
     }
 
-    private static void addPolicyTypesToToscaServiceTemplate(
-            ToscaServiceTemplate toscaServiceTemplate) {
+    private static void addPolicyTypesToToscaServiceTemplate(ToscaServiceTemplate toscaServiceTemplate) {
         Set<String> policyTypeDirectoryContents = ResourceUtils.getDirectoryContents("policytypes");
 
         for (String policyTypeFilePath : policyTypeDirectoryContents) {
@@ -413,10 +384,9 @@ public class TestListenerUtils {
         for (String policiesFilePath : policiesDirectoryContents) {
             String policiesString = ResourceUtils.getResourceAsString(policiesFilePath);
 
-            ToscaServiceTemplate foundPoliciesSt =
-                    yamlTranslator.fromYaml(policiesString, ToscaServiceTemplate.class);
-            toscaServiceTemplate.getToscaTopologyTemplate().setPolicies(
-                    foundPoliciesSt.getToscaTopologyTemplate().getPolicies());
+            ToscaServiceTemplate foundPoliciesSt = yamlTranslator.fromYaml(policiesString, ToscaServiceTemplate.class);
+            toscaServiceTemplate.getToscaTopologyTemplate()
+                    .setPolicies(foundPoliciesSt.getToscaTopologyTemplate().getPolicies());
         }
     }
 
@@ -427,8 +397,8 @@ public class TestListenerUtils {
                 throw new FileNotFoundException(controlLoopFilePath);
             }
 
-            ToscaServiceTemplate serviceTemplate = yamlTranslator.fromYaml(
-                    controlLoopString, ToscaServiceTemplate.class);
+            ToscaServiceTemplate serviceTemplate =
+                    yamlTranslator.fromYaml(controlLoopString, ToscaServiceTemplate.class);
             return serviceTemplate;
         } catch (FileNotFoundException e) {
             LOGGER.error("cannot find YAML file", controlLoopFilePath);
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/config/ParticipantConfig.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/config/ParticipantConfig.java
index c890ec247..d28ddf9dc 100644
--- a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/config/ParticipantConfig.java
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/config/ParticipantConfig.java
@@ -20,7 +20,10 @@
 
 package org.onap.policy.clamp.controlloop.participant.simulator.config;
 
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.handler.ControlLoopElementHandler;
 import org.onap.policy.clamp.controlloop.participant.simulator.main.rest.RequestResponseLoggingFilter;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -42,4 +45,17 @@ public class ParticipantConfig {
 
         return registrationBean;
     }
+
+    /**
+     * Register ControlLoopElementListener.
+     *
+     * @param intermediaryApi the ParticipantIntermediaryApi
+     * @param clElementHandler the ControlLoop Element Handler
+     */
+    @Autowired
+    public void registerControlLoopElementListener(ParticipantIntermediaryApi intermediaryApi,
+            ControlLoopElementHandler clElementHandler) {
+        intermediaryApi.registerControlLoopElementListener(clElementHandler);
+        clElementHandler.setIntermediaryApi(intermediaryApi);
+    }
 }
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/handler/ControlLoopElementHandler.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/handler/ControlLoopElementHandler.java
new file mode 100644
index 000000000..fd46faf97
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/handler/ControlLoopElementHandler.java
@@ -0,0 +1,111 @@
+/*-
+ * ============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.simulator.main.handler;
+
+import java.time.Instant;
+import java.util.UUID;
+import lombok.Setter;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
+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.intermediary.api.ControlLoopElementListener;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+/**
+ * This class handles implementation of controlLoopElement updates.
+ */
+@Component
+public class ControlLoopElementHandler implements ControlLoopElementListener {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(ControlLoopElementHandler.class);
+
+    @Setter
+    private ParticipantIntermediaryApi intermediaryApi;
+
+    /**
+     * Callback method to handle a control loop element state change.
+     *
+     * @param controlLoopElementId the ID of the control loop element
+     * @param currentState the current state of the control loop element
+     * @param newState the state to which the control loop element is changing to
+     * @throws PfModelException in case of an exception
+     */
+    @Override
+    public void controlLoopElementStateChange(ToscaConceptIdentifier controlLoopId,
+                UUID controlLoopElementId, ControlLoopState currentState,
+            ControlLoopOrderedState newState) throws PfModelException {
+        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.debug("Unknown orderedstate {}", newState);
+                break;
+        }
+    }
+
+    /**
+     * Callback method to handle an update on a control loop element.
+     *
+     * @param element the information on the control loop element
+     * @param clElementDefinition toscaNodeTemplate
+     * @throws PfModelException in case of an exception
+     */
+    @Override
+    public void controlLoopElementUpdate(ToscaConceptIdentifier controlLoopId, ControlLoopElement element,
+                ToscaNodeTemplate clElementDefinition)
+            throws PfModelException {
+        intermediaryApi.updateControlLoopElementState(controlLoopId, element.getId(), element.getOrderedState(),
+                ControlLoopState.PASSIVE, ParticipantMessageType.CONTROL_LOOP_UPDATE);
+    }
+
+    @Override
+    public void handleStatistics(UUID controlLoopElementId) throws PfModelException {
+        var clElement = intermediaryApi.getControlLoopElement(controlLoopElementId);
+        if (clElement != null) {
+            var clElementStatistics = new ClElementStatistics();
+            clElementStatistics.setControlLoopState(clElement.getState());
+            clElementStatistics.setTimeStamp(Instant.now());
+            intermediaryApi.updateControlLoopElementStatistics(controlLoopElementId, clElementStatistics);
+        }
+    }
+
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/resources/config/application.yaml b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/application.yaml
index c26749b4d..320b53805 100644
--- a/participant/participant-impl/participant-impl-simulator/src/main/resources/config/application.yaml
+++ b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/application.yaml
@@ -13,7 +13,7 @@ server:
 
 participant:
   intermediaryParameters:
-    reportingTimeIntervalMs: 120000
+    reportingTimeIntervalMs: 60000
     description: Participant Description
     participantId:
       name: org.onap.PM_CDS_Blueprint
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestListenerUtils.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestListenerUtils.java
index 7439ccd5b..bd3316abb 100644
--- a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestListenerUtils.java
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestListenerUtils.java
@@ -31,6 +31,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 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.ControlLoopElementDefinition;
@@ -38,6 +40,7 @@ import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantDefinition;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUpdates;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUtils;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ControlLoopStateChange;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ControlLoopUpdate;
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantUpdate;
@@ -53,15 +56,13 @@ import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class TestListenerUtils {
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class TestListenerUtils {
 
     private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
     private static final Coder CODER = new StandardCoder();
     static CommonTestData commonTestData = new CommonTestData();
     private static final Logger LOGGER = LoggerFactory.getLogger(TestListenerUtils.class);
-    private static final String CONTROL_LOOP_ELEMENT = "org.onap.policy.clamp.controlloop.ControlLoopElement";
-
-    private TestListenerUtils() {}
 
     /**
      * Method to create a controlLoop from a yaml file.
@@ -131,10 +132,8 @@ public class TestListenerUtils {
      */
     public static ControlLoopUpdate createControlLoopUpdateMsg() {
         final ControlLoopUpdate clUpdateMsg = new ControlLoopUpdate();
-        ToscaConceptIdentifier controlLoopId =
-            new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
-        ToscaConceptIdentifier participantId =
-            new ToscaConceptIdentifier("org.onap.PM_Policy", "0.0.0");
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_Policy", "0.0.0");
 
         clUpdateMsg.setControlLoopId(controlLoopId);
         clUpdateMsg.setParticipantId(participantId);
@@ -146,23 +145,18 @@ public class TestListenerUtils {
         Map<String, ToscaNodeTemplate> nodeTemplatesMap =
                 toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
         for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
-            if (checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(), toscaServiceTemplate)) {
+            if (ParticipantUtils.checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(),
+                    toscaServiceTemplate)) {
                 ControlLoopElement clElement = new ControlLoopElement();
                 clElement.setId(UUID.randomUUID());
-                ToscaConceptIdentifier clParticipantType;
-                try {
-                    clParticipantType = CODER.decode(
-                            toscaInputEntry.getValue().getProperties().get("participantType").toString(),
-                            ToscaConceptIdentifier.class);
-                } catch (CoderException e) {
-                    throw new RuntimeException("cannot get ParticipantType from toscaNodeTemplate", e);
-                }
+                var clParticipantType =
+                        ParticipantUtils.findParticipantType(toscaInputEntry.getValue().getProperties());
 
                 clElement.setParticipantId(clParticipantType);
                 clElement.setParticipantType(clParticipantType);
 
-                clElement.setDefinition(new ToscaConceptIdentifier(toscaInputEntry.getKey(),
-                    toscaInputEntry.getValue().getVersion()));
+                clElement.setDefinition(
+                        new ToscaConceptIdentifier(toscaInputEntry.getKey(), toscaInputEntry.getValue().getVersion()));
                 clElement.setState(ControlLoopState.UNINITIALISED);
                 clElement.setDescription(toscaInputEntry.getValue().getDescription());
                 clElement.setOrderedState(ControlLoopOrderedState.PASSIVE);
@@ -178,24 +172,8 @@ public class TestListenerUtils {
         return clUpdateMsg;
     }
 
-    private static boolean checkIfNodeTemplateIsControlLoopElement(ToscaNodeTemplate nodeTemplate,
-            ToscaServiceTemplate toscaServiceTemplate) {
-        if (nodeTemplate.getType().contains(CONTROL_LOOP_ELEMENT)) {
-            return true;
-        } else {
-            var nodeType = toscaServiceTemplate.getNodeTypes().get(nodeTemplate.getType());
-            if (nodeType != null) {
-                var derivedFrom = nodeType.getDerivedFrom();
-                if (derivedFrom != null) {
-                    return derivedFrom.contains(CONTROL_LOOP_ELEMENT) ? true : false;
-                }
-            }
-        }
-        return false;
-    }
-
     private static void prepareParticipantUpdateForControlLoop(ControlLoopElement clElement,
-        List<ParticipantUpdates> participantUpdates) {
+            List<ParticipantUpdates> participantUpdates) {
         if (participantUpdates.isEmpty()) {
             participantUpdates.add(getControlLoopElementList(clElement));
         } else {
@@ -229,8 +207,8 @@ public class TestListenerUtils {
     public static ParticipantUpdate createParticipantUpdateMsg() {
         final ParticipantUpdate participantUpdateMsg = new ParticipantUpdate();
         ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_Policy", "1.0.0");
-        ToscaConceptIdentifier participantType = new ToscaConceptIdentifier(
-                "org.onap.policy.controlloop.PolicyControlLoopParticipant", "2.3.1");
+        ToscaConceptIdentifier participantType =
+                new ToscaConceptIdentifier("org.onap.policy.controlloop.PolicyControlLoopParticipant", "2.3.1");
 
         participantUpdateMsg.setParticipantId(participantId);
         participantUpdateMsg.setTimestamp(Instant.now());
@@ -242,19 +220,14 @@ public class TestListenerUtils {
         // Add policies to the toscaServiceTemplate
 
         List<ParticipantDefinition> participantDefinitionUpdates = new ArrayList<>();
-        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry :
-            toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates().entrySet()) {
-            if (checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(), toscaServiceTemplate)) {
-                ToscaConceptIdentifier clParticipantType;
-                try {
-                    clParticipantType = CODER.decode(
-                            toscaInputEntry.getValue().getProperties().get("participantType").toString(),
-                            ToscaConceptIdentifier.class);
-                } catch (CoderException e) {
-                    throw new RuntimeException("cannot get ParticipantType from toscaNodeTemplate", e);
-                }
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : toscaServiceTemplate.getToscaTopologyTemplate()
+                .getNodeTemplates().entrySet()) {
+            if (ParticipantUtils.checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(),
+                    toscaServiceTemplate)) {
+                var clParticipantType =
+                        ParticipantUtils.findParticipantType(toscaInputEntry.getValue().getProperties());
                 prepareParticipantDefinitionUpdate(clParticipantType, toscaInputEntry.getKey(),
-                    toscaInputEntry.getValue(), participantDefinitionUpdates);
+                        toscaInputEntry.getValue(), participantDefinitionUpdates);
             }
         }
 
@@ -263,17 +236,16 @@ public class TestListenerUtils {
     }
 
     private static void prepareParticipantDefinitionUpdate(ToscaConceptIdentifier clParticipantType, String entryKey,
-        ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates) {
+            ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates) {
 
         var clDefinition = new ControlLoopElementDefinition();
-        clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(
-            entryKey, entryValue.getVersion()));
+        clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(entryKey, entryValue.getVersion()));
         clDefinition.setControlLoopElementToscaNodeTemplate(entryValue);
         List<ControlLoopElementDefinition> controlLoopElementDefinitionList = new ArrayList<>();
 
         if (participantDefinitionUpdates.isEmpty()) {
-            participantDefinitionUpdates.add(getParticipantDefinition(clDefinition, clParticipantType,
-                controlLoopElementDefinitionList));
+            participantDefinitionUpdates
+                    .add(getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
         } else {
             boolean participantExists = false;
             for (ParticipantDefinition participantDefinitionUpdate : participantDefinitionUpdates) {
@@ -283,15 +255,15 @@ public class TestListenerUtils {
                 }
             }
             if (!participantExists) {
-                participantDefinitionUpdates.add(getParticipantDefinition(clDefinition, clParticipantType,
-                    controlLoopElementDefinitionList));
+                participantDefinitionUpdates.add(
+                        getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
             }
         }
     }
 
     private static ParticipantDefinition getParticipantDefinition(ControlLoopElementDefinition clDefinition,
-        ToscaConceptIdentifier clParticipantType,
-        List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
+            ToscaConceptIdentifier clParticipantType,
+            List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
         ParticipantDefinition participantDefinition = new ParticipantDefinition();
         participantDefinition.setParticipantType(clParticipantType);
         controlLoopElementDefinitionList.add(clDefinition);
@@ -307,10 +279,8 @@ public class TestListenerUtils {
      * @return ControlLoopUpdate message
      * @throws CoderException exception while reading the file to object
      */
-    public static ControlLoopUpdate createParticipantClUpdateMsgFromJson(String jsonFilePath)
-            throws CoderException {
-        ControlLoopUpdate controlLoopUpdateMsg =
-                CODER.decode(new File(jsonFilePath), ControlLoopUpdate.class);
+    public static ControlLoopUpdate createParticipantClUpdateMsgFromJson(String jsonFilePath) throws CoderException {
+        ControlLoopUpdate controlLoopUpdateMsg = CODER.decode(new File(jsonFilePath), ControlLoopUpdate.class);
         return controlLoopUpdateMsg;
     }
 
@@ -340,8 +310,8 @@ public class TestListenerUtils {
                 throw new FileNotFoundException(controlLoopFilePath);
             }
 
-            ToscaServiceTemplate serviceTemplate = yamlTranslator.fromYaml(
-                            controlLoopString, ToscaServiceTemplate.class);
+            ToscaServiceTemplate serviceTemplate =
+                    yamlTranslator.fromYaml(controlLoopString, ToscaServiceTemplate.class);
             return serviceTemplate;
         } catch (FileNotFoundException e) {
             LOGGER.error("cannot find YAML file", controlLoopFilePath);
diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/ParticipantIntermediaryApi.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/ParticipantIntermediaryApi.java
index 3859e0c39..891d67e2d 100644
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/ParticipantIntermediaryApi.java
+++ b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/ParticipantIntermediaryApi.java
@@ -48,16 +48,6 @@ public interface ParticipantIntermediaryApi {
     void registerControlLoopElementListener(ControlLoopElementListener controlLoopElementListener);
 
     /**
-     * Send participant register message to controlloop runtime.
-     */
-    void sendParticipantRegister();
-
-    /**
-     * Send participant deregister message to controlloop runtime.
-     */
-    void sendParticipantDeregister();
-
-    /**
      * Get participants loops from the intermediary API.
      *
      * @param name the participant name, null for all
diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/impl/ParticipantIntermediaryApiImpl.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/impl/ParticipantIntermediaryApiImpl.java
index 1f79d7179..aa1febadd 100644
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/impl/ParticipantIntermediaryApiImpl.java
+++ b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/api/impl/ParticipantIntermediaryApiImpl.java
@@ -37,6 +37,7 @@ import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant
 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ControlLoopElementListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
+import org.onap.policy.clamp.controlloop.participant.intermediary.handler.ControlLoopHandler;
 import org.onap.policy.clamp.controlloop.participant.intermediary.handler.ParticipantHandler;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.springframework.stereotype.Component;
@@ -48,30 +49,26 @@ import org.springframework.stereotype.Component;
 public class ParticipantIntermediaryApiImpl implements ParticipantIntermediaryApi {
 
     // The handler for the participant intermediary
-    private ParticipantHandler participantHandler;
+    private final ParticipantHandler participantHandler;
+
+    // The handler for the controlLoop intermediary
+    private final ControlLoopHandler controlLoopHandler;
 
     /**
      * Constructor.
      *
      * @param participantHandler ParticipantHandler
+     * @param controlLoopHandler ControlLoopHandler
      */
-    public ParticipantIntermediaryApiImpl(ParticipantHandler participantHandler) {
+    public ParticipantIntermediaryApiImpl(ParticipantHandler participantHandler,
+            ControlLoopHandler controlLoopHandler) {
         this.participantHandler = participantHandler;
+        this.controlLoopHandler = controlLoopHandler;
     }
 
     @Override
     public void registerControlLoopElementListener(ControlLoopElementListener controlLoopElementListener) {
-        participantHandler.getControlLoopHandler().registerControlLoopElementListener(controlLoopElementListener);
-    }
-
-    @Override
-    public void sendParticipantRegister() {
-        participantHandler.sendParticipantRegister();
-    }
-
-    @Override
-    public void sendParticipantDeregister() {
-        participantHandler.sendParticipantDeregister();
+        controlLoopHandler.registerControlLoopElementListener(controlLoopElementListener);
     }
 
     @Override
@@ -91,13 +88,12 @@ public class ParticipantIntermediaryApiImpl implements ParticipantIntermediaryAp
 
     @Override
     public ControlLoops getControlLoops(String name, String version) {
-        return participantHandler.getControlLoopHandler().getControlLoops();
+        return controlLoopHandler.getControlLoops();
     }
 
     @Override
     public Map<UUID, ControlLoopElement> getControlLoopElements(String name, String version) {
-        List<ControlLoop> controlLoops =
-                participantHandler.getControlLoopHandler().getControlLoops().getControlLoopList();
+        List<ControlLoop> controlLoops = controlLoopHandler.getControlLoops().getControlLoopList();
 
         for (ControlLoop controlLoop : controlLoops) {
             if (name.equals(controlLoop.getDefinition().getName())) {
@@ -109,8 +105,7 @@ public class ParticipantIntermediaryApiImpl implements ParticipantIntermediaryAp
 
     @Override
     public ControlLoopElement getControlLoopElement(UUID id) {
-        List<ControlLoop> controlLoops =
-                participantHandler.getControlLoopHandler().getControlLoops().getControlLoopList();
+        List<ControlLoop> controlLoops = controlLoopHandler.getControlLoops().getControlLoopList();
 
         for (ControlLoop controlLoop : controlLoops) {
             ControlLoopElement clElement = controlLoop.getElements().get(id);
@@ -125,12 +120,12 @@ public class ParticipantIntermediaryApiImpl implements ParticipantIntermediaryAp
     public ControlLoopElement updateControlLoopElementState(ToscaConceptIdentifier controlLoopId,
             UUID id, ControlLoopOrderedState currentState,
             ControlLoopState newState, ParticipantMessageType messageType) {
-        return participantHandler.getControlLoopHandler().updateControlLoopElementState(controlLoopId,
+        return controlLoopHandler.updateControlLoopElementState(controlLoopId,
             id, currentState, newState);
     }
 
     @Override
     public void updateControlLoopElementStatistics(UUID id, ClElementStatistics elementStatistics) {
-        participantHandler.getControlLoopHandler().updateControlLoopElementStatistics(id, elementStatistics);
+        controlLoopHandler.updateControlLoopElementStatistics(id, elementStatistics);
     }
 }
diff --git a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ControlLoopHandler.java b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ControlLoopHandler.java
index 6e1b31cfe..8bdf91824 100644
--- a/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ControlLoopHandler.java
+++ b/participant/participant-intermediary/src/main/java/org/onap/policy/clamp/controlloop/participant/intermediary/handler/ControlLoopHandler.java
@@ -28,7 +28,6 @@ import java.util.Map;
 import java.util.UUID;
 import java.util.stream.Collectors;
 import lombok.Getter;
-import org.apache.commons.collections4.CollectionUtils;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
@@ -45,7 +44,6 @@ import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.Parti
 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ControlLoopElementListener;
 import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ParticipantMessagePublisher;
 import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantParameters;
-import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
@@ -97,33 +95,37 @@ public class ControlLoopHandler {
      * @param newState the ordered state
      * @return controlLoopElement the updated controlloop element
      */
-    public ControlLoopElement updateControlLoopElementState(ToscaConceptIdentifier controlLoopId,
-            UUID id, ControlLoopOrderedState orderedState,
-            ControlLoopState newState) {
+    public ControlLoopElement updateControlLoopElementState(ToscaConceptIdentifier controlLoopId, UUID id,
+            ControlLoopOrderedState orderedState, ControlLoopState newState) {
 
         if (id == null) {
             LOGGER.warn("Cannot update Control loop element state, id is null");
+            return null;
         }
 
-        ControlLoopElement clElement = elementsOnThisParticipant.get(id);
         for (var controlLoop : controlLoopMap.values()) {
             var element = controlLoop.getElements().get(id);
             if (element != null) {
                 element.setState(newState);
             }
+            var checkOpt = controlLoop.getElements().values().stream()
+                    .filter(clElement -> !newState.equals(clElement.getState())).findAny();
+            if (checkOpt.isEmpty()) {
+                controlLoop.setState(newState);
+                controlLoop.setOrderedState(orderedState);
+            }
         }
 
+        var clElement = elementsOnThisParticipant.get(id);
         if (clElement != null) {
-            var controlLoopStateChangeAck =
-                    new ControlLoopAck(ParticipantMessageType.CONTROLLOOP_STATECHANGE_ACK);
+            var controlLoopStateChangeAck = new ControlLoopAck(ParticipantMessageType.CONTROLLOOP_STATECHANGE_ACK);
             controlLoopStateChangeAck.setParticipantId(participantId);
             controlLoopStateChangeAck.setParticipantType(participantType);
             controlLoopStateChangeAck.setControlLoopId(controlLoopId);
             clElement.setOrderedState(orderedState);
             clElement.setState(newState);
-            controlLoopStateChangeAck.getControlLoopResultMap().put(clElement.getId(),
-                new  ControlLoopElementAck(newState, true,
-                    "Control loop element {} state changed to {}\", id, newState)"));
+            controlLoopStateChangeAck.getControlLoopResultMap().put(clElement.getId(), new ControlLoopElementAck(
+                    newState, true, "Control loop element {} state changed to {}\", id, newState)"));
             LOGGER.debug("Control loop element {} state changed to {}", id, newState);
             controlLoopStateChangeAck.setMessage("ControlLoopElement state changed to {} " + newState);
             controlLoopStateChangeAck.setResult(true);
@@ -140,7 +142,7 @@ public class ControlLoopHandler {
      * @param elementStatistics control loop element Statistics
      */
     public void updateControlLoopElementStatistics(UUID id, ClElementStatistics elementStatistics) {
-        ControlLoopElement clElement = elementsOnThisParticipant.get(id);
+        var clElement = elementsOnThisParticipant.get(id);
         if (clElement != null) {
             elementStatistics.setParticipantId(participantId);
             elementStatistics.setId(id);
@@ -165,7 +167,7 @@ public class ControlLoopHandler {
             controlLoopAck.setParticipantId(participantId);
             controlLoopAck.setParticipantType(participantType);
             controlLoopAck.setMessage("Control loop " + stateChangeMsg.getControlLoopId()
-                + " does not use this participant " + participantId);
+                    + " does not use this participant " + participantId);
             controlLoopAck.setResult(false);
             controlLoopAck.setResponseTo(stateChangeMsg.getMessageId());
             controlLoopAck.setControlLoopId(stateChangeMsg.getControlLoopId());
@@ -206,7 +208,7 @@ public class ControlLoopHandler {
      * @param updateMsg the update message
      */
     public void handleControlLoopUpdate(ControlLoopUpdate updateMsg,
-                List<ControlLoopElementDefinition> clElementDefinitions) {
+            List<ControlLoopElementDefinition> clElementDefinitions) {
 
         if (!updateMsg.appliesTo(participantType, participantId)) {
             return;
@@ -222,7 +224,7 @@ public class ControlLoopHandler {
             controlLoopUpdateAck.setParticipantType(participantType);
 
             controlLoopUpdateAck.setMessage("Control loop " + updateMsg.getControlLoopId()
-                + " already defined on participant " + participantId);
+                    + " already defined on participant " + participantId);
             controlLoopUpdateAck.setResult(false);
             controlLoopUpdateAck.setResponseTo(updateMsg.getMessageId());
             controlLoopUpdateAck.setControlLoopId(updateMsg.getControlLoopId());
@@ -235,22 +237,22 @@ public class ControlLoopHandler {
             return;
         }
 
-        List<ControlLoopElement> clElements = storeElementsOnThisParticipant(updateMsg.getParticipantUpdatesList());
+        var clElements = storeElementsOnThisParticipant(updateMsg.getParticipantUpdatesList());
 
         try {
-            for (ControlLoopElement element : clElements) {
-                ToscaNodeTemplate clElementNodeTemplate = getClElementNodeTemplate(
-                        clElementDefinitions, element.getDefinition());
-                for (ControlLoopElementListener clElementListener : listeners) {
-                    clElementListener.controlLoopElementUpdate(updateMsg.getControlLoopId(),
-                        element, clElementNodeTemplate);
+            for (var element : clElements) {
+                var clElementNodeTemplate =
+                        getClElementNodeTemplate(clElementDefinitions, element.getDefinition());
+                for (var clElementListener : listeners) {
+                    clElementListener.controlLoopElementUpdate(updateMsg.getControlLoopId(), element,
+                            clElementNodeTemplate);
                 }
             }
         } catch (PfModelException e) {
             LOGGER.debug("Control loop element update failed {}", updateMsg.getControlLoopId());
         }
 
-        Map<UUID, ControlLoopElement> clElementMap = prepareClElementMap(clElements);
+        var clElementMap = prepareClElementMap(clElements);
         controlLoop = new ControlLoop();
         controlLoop.setDefinition(updateMsg.getControlLoopId());
         controlLoop.setElements(clElementMap);
@@ -258,8 +260,8 @@ public class ControlLoopHandler {
     }
 
     private ToscaNodeTemplate getClElementNodeTemplate(List<ControlLoopElementDefinition> clElementDefinitions,
-                ToscaConceptIdentifier clElementDefId) {
-        for (ControlLoopElementDefinition clElementDefinition : clElementDefinitions) {
+            ToscaConceptIdentifier clElementDefId) {
+        for (var clElementDefinition : clElementDefinitions) {
             if (clElementDefinition.getClElementDefinitionId().equals(clElementDefId)) {
                 return clElementDefinition.getControlLoopElementToscaNodeTemplate();
             }
@@ -268,11 +270,9 @@ public class ControlLoopHandler {
     }
 
     private List<ControlLoopElement> storeElementsOnThisParticipant(List<ParticipantUpdates> participantUpdates) {
-        var clElementMap =
-                participantUpdates.stream()
+        var clElementMap = participantUpdates.stream()
                 .flatMap(participantUpdate -> participantUpdate.getControlLoopElementList().stream())
-                .filter(element -> participantType.equals(element.getParticipantType()))
-                .collect(Collectors.toList());
+                .filter(element -> participantType.equals(element.getParticipantType())).collect(Collectors.toList());
 
         for (var element : clElementMap) {
             elementsOnThisParticipant.put(element.getId(), element);
@@ -282,7 +282,7 @@ public class ControlLoopHandler {
 
     private Map<UUID, ControlLoopElement> prepareClElementMap(List<ControlLoopElement> clElements) {
         Map<UUID, ControlLoopElement> clElementMap = new LinkedHashMap<>();
-        for (ControlLoopElement element : clElements) {
+        for (var element : clElements) {
             clElementMap.put(element.getId(), element);
         }
         return clElementMap;
@@ -295,19 +295,9 @@ public class ControlLoopHandler {
      * @param orderedState orderedState
      */
     private void handleUninitialisedState(final ControlLoop controlLoop, final ControlLoopOrderedState orderedState) {
-        handleStateChange(controlLoop, orderedState, ControlLoopState.UNINITIALISED);
-        controlLoopMap.remove(controlLoop.getKey().asIdentifier());
-
-        for (ControlLoopElementListener clElementListener : listeners) {
-            try {
-                for (ControlLoopElement element : controlLoop.getElements().values()) {
-                    clElementListener.controlLoopElementStateChange(controlLoop.getDefinition(),
-                        element.getId(), element.getState(), orderedState);
-                }
-            } catch (PfModelException e) {
-                LOGGER.debug("Control loop element update failed {}", controlLoop.getDefinition());
-            }
-        }
+        handleStateChange(controlLoop, orderedState);
+        controlLoopMap.remove(controlLoop.getDefinition());
+        controlLoop.getElements().values().forEach(element -> elementsOnThisParticipant.remove(element.getId()));
     }
 
     /**
@@ -317,7 +307,7 @@ public class ControlLoopHandler {
      * @param orderedState orderedState
      */
     private void handlePassiveState(final ControlLoop controlLoop, final ControlLoopOrderedState orderedState) {
-        handleStateChange(controlLoop, orderedState, ControlLoopState.PASSIVE);
+        handleStateChange(controlLoop, orderedState);
     }
 
     /**
@@ -327,7 +317,7 @@ public class ControlLoopHandler {
      * @param orderedState orderedState
      */
     private void handleRunningState(final ControlLoop controlLoop, final ControlLoopOrderedState orderedState) {
-        handleStateChange(controlLoop, orderedState, ControlLoopState.RUNNING);
+        handleStateChange(controlLoop, orderedState);
     }
 
     /**
@@ -335,30 +325,30 @@ public class ControlLoopHandler {
      *
      * @param controlLoop participant status in memory
      * @param orderedState orderedState the new ordered state the participant should have
-     * @param newState new state of the control loop elements
      */
-    private void handleStateChange(ControlLoop controlLoop, final ControlLoopOrderedState orderedState,
-            ControlLoopState newState) {
+    private void handleStateChange(ControlLoop controlLoop, final ControlLoopOrderedState orderedState) {
 
         if (orderedState.equals(controlLoop.getOrderedState())) {
             var controlLoopAck = new ControlLoopAck(ParticipantMessageType.CONTROL_LOOP_STATE_CHANGE);
             controlLoopAck.setParticipantId(participantId);
             controlLoopAck.setParticipantType(participantType);
-            controlLoopAck.setMessage("Control loop is already in state" + orderedState);
+            controlLoopAck.setMessage("Control loop is already in state " + orderedState);
             controlLoopAck.setResult(false);
             controlLoopAck.setControlLoopId(controlLoop.getDefinition());
             publisher.sendControlLoopAck(controlLoopAck);
             return;
         }
 
-        if (!CollectionUtils.isEmpty(controlLoop.getElements().values())) {
-            controlLoop.getElements().values().forEach(element -> {
-                element.setState(newState);
-                element.setOrderedState(orderedState);
-            });
+        for (var clElementListener : listeners) {
+            try {
+                for (var element : controlLoop.getElements().values()) {
+                    clElementListener.controlLoopElementStateChange(controlLoop.getDefinition(), element.getId(),
+                            element.getState(), orderedState);
+                }
+            } catch (PfModelException e) {
+                LOGGER.debug("Control loop element update failed {}", controlLoop.getDefinition());
+            }
         }
-
-        controlLoop.setOrderedState(orderedState);
     }
 
     /**
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 5458f7c34..1d445324b 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
@@ -24,7 +24,6 @@ package org.onap.policy.clamp.controlloop.participant.intermediary.handler;
 import java.io.Closeable;
 import java.io.IOException;
 import java.util.List;
-import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
 import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantParameters;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
 import org.onap.policy.common.endpoints.event.comm.TopicSink;
@@ -48,7 +47,7 @@ public class IntermediaryActivator extends ServiceManagerContainer implements Cl
     private List<TopicSink> topicSinks;
     private List<TopicSource> topicSources;
 
-    ParticipantIntermediaryApi participantIntermediaryApi;
+    private ParticipantHandler participantHandler;
 
     private final MessageTypeDispatcher msgDispatcher;
 
@@ -56,13 +55,14 @@ public class IntermediaryActivator extends ServiceManagerContainer implements Cl
      * Instantiate the activator for participant.
      *
      * @param parameters the ParticipantParameters
+     * @param participantHandler the ParticipantHandler
      * @param publishers list of Publishers
      * @param listeners list of Listeners
      */
     public <T> IntermediaryActivator(final ParticipantParameters parameters,
-            ParticipantIntermediaryApi participantIntermediaryApi, List<Publisher> publishers,
+            ParticipantHandler participantHandler, List<Publisher> publishers,
             List<Listener<T>> listeners) {
-        this.participantIntermediaryApi = participantIntermediaryApi;
+        this.participantHandler = participantHandler;
 
         topicSinks = TopicEndpointManager.getManager()
                 .addTopicSinks(parameters.getIntermediaryParameters().getClampControlLoopTopics().getTopicSinks());
@@ -118,11 +118,11 @@ public class IntermediaryActivator extends ServiceManagerContainer implements Cl
     }
 
     private void sendParticipantRegister() {
-        participantIntermediaryApi.sendParticipantRegister();
+        participantHandler.sendParticipantRegister();
     }
 
     private void sendParticipantDeregister() {
-        participantIntermediaryApi.sendParticipantDeregister();
+        participantHandler.sendParticipantDeregister();
     }
 
     /**
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 19641b0d5..69f8febb8 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
@@ -28,6 +28,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.UUID;
+import java.util.stream.Collectors;
 import lombok.Getter;
 import lombok.Setter;
 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatisticsList;
@@ -66,13 +67,16 @@ import org.springframework.stereotype.Component;
 /**
  * This class is responsible for managing the state of a participant.
  */
-@Getter
 @Component
 public class ParticipantHandler {
     private static final Logger LOGGER = LoggerFactory.getLogger(ParticipantHandler.class);
 
+    @Getter
     private final ToscaConceptIdentifier participantType;
+
+    @Getter
     private final ToscaConceptIdentifier participantId;
+
     private final ControlLoopHandler controlLoopHandler;
     private final ParticipantStatistics participantStatistics;
     private final ParticipantMessagePublisher publisher;
@@ -110,11 +114,6 @@ public class ParticipantHandler {
      * @param participantStatusReqMsg participant participantStatusReq message
      */
     public void handleParticipantStatusReq(final ParticipantStatusReq participantStatusReqMsg) {
-        var controlLoops = controlLoopHandler.getControlLoops();
-        for (ControlLoopElementListener clElementListener : controlLoopHandler.getListeners()) {
-            updateClElementStatistics(controlLoops, clElementListener);
-        }
-
         var participantStatus = makeHeartbeat(true);
         publisher.sendParticipantStatus(participantStatus);
     }
@@ -331,6 +330,12 @@ public class ParticipantHandler {
      * Method to send heartbeat to controlloop runtime.
      */
     public ParticipantStatus makeHeartbeat(boolean responseToParticipantStatusReq) {
+        if (!responseToParticipantStatusReq) {
+            var controlLoops = controlLoopHandler.getControlLoops();
+            for (var clElementListener : controlLoopHandler.getListeners()) {
+                updateClElementStatistics(controlLoops, clElementListener);
+            }
+        }
         this.participantStatistics.setState(state);
         this.participantStatistics.setHealthStatus(healthStatus);
         this.participantStatistics.setTimeStamp(Instant.now());
@@ -363,10 +368,15 @@ public class ParticipantHandler {
             clStatitistics.setControlLoopId(entry.getKey());
             ClElementStatisticsList clElementStatisticsList = new ClElementStatisticsList();
             clElementStatisticsList
-                    .setClElementStatistics(entry.getValue().getControlLoopElementStatisticsList(entry.getValue()));
+                    .setClElementStatistics(entry.getValue().getElements().values()
+                            .stream()
+                            .map(ControlLoopElement::getClElementStatistics)
+                            .filter(Objects::nonNull)
+                            .collect(Collectors.toList()));
             clStatitistics.setClElementStatisticsList(clElementStatisticsList);
             clInfo.setControlLoopStatistics(clStatitistics);
             clInfo.setState(entry.getValue().getState());
+            controlLoopInfoList.add(clInfo);
         }
         return controlLoopInfoList;
     }