Transfer tosca-poc onto master

This is the third if three commits, this commit makes the content of
the master branch the same as the tosca-poc branch.

This commit adds the "src" files for TOSCA control loops to the modules
in master.

Difference between this commit and the current master:
------------------------------------------------------
diff -qr clamp clamp-master |diff_filter.sh
Only in clamp/common: src
Only in clamp/models: src
Files clamp/participant/participant-impl/participant-impl-dcae/pom.xml and clamp-master/participant/participant-impl/participant-impl-dcae/pom.xml differ
Only in clamp/participant/participant-impl/participant-impl-dcae: src
Only in clamp/participant/participant-impl/participant-impl-policy: src
Only in clamp/participant/participant-impl/participant-impl-simulator: src
Files clamp/participant/participant-impl/pom.xml and clamp-master/participant/participant-impl/pom.xml differ
Only in clamp/participant/participant-intermediary: src
Files clamp/participant/pom.xml and clamp-master/participant/pom.xml differ
Files clamp/pom.xml and clamp-master/pom.xml differ
Files clamp/runtime/pom.xml and clamp-master/runtime/pom.xml differ
Only in clamp: runtime-controlloop

Difference between this commit and the current tosca-poc branch:
----------------------------------------------------------------
diff -qr clamp clamp-tp |diff_filter.sh
Files clamp/INFO.yaml and clamp-tp/INFO.yaml differ
Only in clamp/releases: 6.0.1-container.yaml
Only in clamp/releases: 6.0.1.yaml
Only in clamp/releases: 6.0.2-container.yaml
Only in clamp/releases: 6.0.2.yaml
Only in clamp/releases: 6.1.0-container.yaml
Only in clamp/releases: 6.1.0.yaml
Only in clamp/releases: 6.1.1-container.yaml
Only in clamp/releases: 6.1.1.yaml
Files clamp/runtime/src/main/resources/META-INF/resources/swagger.html and clamp-tp/runtime/src/main/resources/META-INF/resources/swagger.html differ

Issue-ID: POLICY-3215
Change-Id: Ica1aa3fe5d6110df2396ea856703102e800fa770
Signed-off-by: liamfallon <liam.fallon@est.tech>

32 files changed, 3560 insertions, 0 deletions

diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameterHandler.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameterHandler.java
new file mode 100644
index 000000000..42f458602
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameterHandler.java
@@ -0,0 +1,78 @@
+/*-
+ * ============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.parameters;
+
+import java.io.File;
+import javax.ws.rs.core.Response;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.startstop.ParticipantSimulatorCommandLineArguments;
+import org.onap.policy.common.parameters.ValidationResult;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+
+/**
+ * This class handles reading, parsing and validating of participant simulator parameters from JSON files.
+ */
+public class ParticipantSimulatorParameterHandler {
+
+    private static final Coder CODER = new StandardCoder();
+
+    /**
+     * Read the parameters from the parameter file.
+     *
+     * @param arguments the arguments passed to simulator
+     * @return the parameters read from the configuration file
+     * @throws ControlLoopException on parameter exceptions
+     */
+    public ParticipantSimulatorParameters getParameters(final ParticipantSimulatorCommandLineArguments arguments)
+            throws ControlLoopException {
+        ParticipantSimulatorParameters parameters = null;
+
+        // Read the parameters
+        try {
+            // Read the parameters from JSON
+            File file = new File(arguments.getFullConfigurationFilePath());
+            parameters = CODER.decode(file, ParticipantSimulatorParameters.class);
+        } catch (final CoderException e) {
+            final String errorMessage = "error reading parameters from \"" + arguments.getConfigurationFilePath()
+                    + "\"\n" + "(" + e.getClass().getSimpleName() + ")";
+            throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, errorMessage, e);
+        }
+
+        // The JSON processing returns null if there is an empty file
+        if (parameters == null) {
+            final String errorMessage = "no parameters found in \"" + arguments.getConfigurationFilePath() + "\"";
+            throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, errorMessage);
+        }
+
+        // validate the parameters
+        final ValidationResult validationResult = parameters.validate();
+        if (!validationResult.isValid()) {
+            String returnMessage =
+                    "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
+            returnMessage += validationResult.getResult();
+            throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, returnMessage);
+        }
+
+        return parameters;
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameters.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameters.java
new file mode 100644
index 000000000..a4e62b446
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/ParticipantSimulatorParameters.java
@@ -0,0 +1,51 @@
+/*-
+ * ============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.parameters;
+
+import javax.validation.constraints.NotBlank;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+import org.onap.policy.common.parameters.ParameterGroupImpl;
+import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
+
+/**
+ * Class to hold all parameters needed for the participant simulator.
+ *
+ */
+@NotNull
+@NotBlank
+@Getter
+public class ParticipantSimulatorParameters extends ParameterGroupImpl {
+    private RestServerParameters restServerParameters;
+    private ParticipantIntermediaryParameters intermediaryParameters;
+    private PolicyModelsProviderParameters databaseProviderParameters;
+
+    /**
+     * Create the participant simulator parameter group.
+     *
+     * @param name the parameter group name
+     */
+    public ParticipantSimulatorParameters(final String name) {
+        super(name);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/ParticipantSimulatorAafFilter.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/ParticipantSimulatorAafFilter.java
new file mode 100644
index 000000000..f200f975a
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/ParticipantSimulatorAafFilter.java
@@ -0,0 +1,38 @@
+/*-
+ * ============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.rest;
+
+import org.onap.policy.common.endpoints.http.server.aaf.AafGranularAuthFilter;
+import org.onap.policy.common.utils.resources.MessageConstants;
+
+/**
+ * Class to manage AAF filters for the participant simulator component.
+ */
+public class ParticipantSimulatorAafFilter extends AafGranularAuthFilter {
+
+    public static final String AAF_NODETYPE = MessageConstants.POLICY_CLAMP + "-participant-simulator";
+    public static final String AAF_ROOT_PERMISSION = DEFAULT_NAMESPACE + "." + AAF_NODETYPE;
+
+    @Override
+    public String getPermissionTypeRoot() {
+        return AAF_ROOT_PERMISSION;
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestController.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestController.java
new file mode 100644
index 000000000..444f37889
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestController.java
@@ -0,0 +1,130 @@
+/*-
+ * ============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.rest;
+
+import io.swagger.annotations.Api;
+import io.swagger.annotations.BasicAuthDefinition;
+import io.swagger.annotations.Info;
+import io.swagger.annotations.SecurityDefinition;
+import io.swagger.annotations.SwaggerDefinition;
+import io.swagger.annotations.Tag;
+import java.net.HttpURLConnection;
+import java.util.UUID;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response.ResponseBuilder;
+import lombok.AccessLevel;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationHandler;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationProvider;
+
+/**
+ * Common superclass to provide REST endpoints for the participant simulator.
+ */
+// @formatter:off
+@Path("/onap/participantsim/v2")
+@Api(value = "Participant Simulator API")
+@Produces({MediaType.APPLICATION_JSON, RestController.APPLICATION_YAML})
+@SwaggerDefinition(
+    info = @Info(description =
+                    "Participant Simulator", version = "v1.0",
+                    title = "Participant Simulator"),
+    consumes = {MediaType.APPLICATION_JSON, RestController.APPLICATION_YAML},
+    produces = {MediaType.APPLICATION_JSON, RestController.APPLICATION_YAML},
+    schemes = {SwaggerDefinition.Scheme.HTTP, SwaggerDefinition.Scheme.HTTPS},
+    tags = {@Tag(name = "participantsim", description = "Participant Simulator")},
+    securityDefinition = @SecurityDefinition(basicAuthDefinitions = {@BasicAuthDefinition(key = "basicAuth")}))
+// @formatter:on
+public class RestController {
+    public static final String APPLICATION_YAML = "application/yaml";
+
+    public static final String EXTENSION_NAME = "interface info";
+
+    public static final String API_VERSION_NAME = "api-version";
+    public static final String API_VERSION = "1.0.0";
+
+    public static final String LAST_MOD_NAME = "last-mod-release";
+    public static final String LAST_MOD_RELEASE = "Dublin";
+
+    public static final String VERSION_MINOR_NAME = "X-MinorVersion";
+    public static final String VERSION_MINOR_DESCRIPTION =
+            "Used to request or communicate a MINOR version back from the client"
+                    + " to the server, and from the server back to the client";
+
+    public static final String VERSION_PATCH_NAME = "X-PatchVersion";
+    public static final String VERSION_PATCH_DESCRIPTION = "Used only to communicate a PATCH version in a response for"
+            + " troubleshooting purposes only, and will not be provided by" + " the client on request";
+
+    public static final String VERSION_LATEST_NAME = "X-LatestVersion";
+    public static final String VERSION_LATEST_DESCRIPTION = "Used only to communicate an API's latest version";
+
+    public static final String REQUEST_ID_NAME = "X-ONAP-RequestID";
+    public static final String REQUEST_ID_HDR_DESCRIPTION = "Used to track REST transactions for logging purpose";
+    public static final String REQUEST_ID_PARAM_DESCRIPTION = "RequestID for http transaction";
+
+    public static final String AUTHORIZATION_TYPE = "basicAuth";
+
+    public static final int AUTHENTICATION_ERROR_CODE = HttpURLConnection.HTTP_UNAUTHORIZED;
+    public static final int AUTHORIZATION_ERROR_CODE = HttpURLConnection.HTTP_FORBIDDEN;
+    public static final int SERVER_ERROR_CODE = HttpURLConnection.HTTP_INTERNAL_ERROR;
+
+    public static final String AUTHENTICATION_ERROR_MESSAGE = "Authentication Error";
+    public static final String AUTHORIZATION_ERROR_MESSAGE = "Authorization Error";
+    public static final String SERVER_ERROR_MESSAGE = "Internal Server Error";
+    @Getter(AccessLevel.PROTECTED)
+    // The provider for simulation requests
+    private SimulationProvider simulationProvider;
+
+
+    /**
+     * create a Rest Controller.
+     */
+    public RestController() {
+        simulationProvider = SimulationHandler.getInstance().getSimulationProvider();
+    }
+
+    /**
+     * Adds version headers to the response.
+     *
+     * @param respBuilder response builder
+     * @return the response builder, with version headers
+     */
+    public ResponseBuilder addVersionControlHeaders(ResponseBuilder respBuilder) {
+        return respBuilder.header(VERSION_MINOR_NAME, "0").header(VERSION_PATCH_NAME, "0").header(VERSION_LATEST_NAME,
+                API_VERSION);
+    }
+
+    /**
+     * Adds logging headers to the response.
+     *
+     * @param respBuilder response builder
+     * @return the response builder, with version logging
+     */
+    public ResponseBuilder addLoggingHeaders(ResponseBuilder respBuilder, UUID requestId) {
+        if (requestId == null) {
+            // Generate a random uuid if client does not embed requestId in rest request
+            return respBuilder.header(REQUEST_ID_NAME, UUID.randomUUID());
+        }
+
+        return respBuilder.header(REQUEST_ID_NAME, requestId);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/Main.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/Main.java
new file mode 100644
index 000000000..e6c93d55d
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/Main.java
@@ -0,0 +1,141 @@
+/*-
+ * ============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.startstop;
+
+import java.util.Arrays;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameterHandler;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
+import org.onap.policy.common.utils.resources.MessageConstants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class initiates participant simulator.
+ */
+public class Main {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(Main.class);
+
+    private ParticipantSimulatorActivator activator;
+
+    @Getter
+    private ParticipantSimulatorParameters parameterGroup;
+
+    /**
+     * Instantiates the control loop participant service.
+     *
+     * @param args the command line arguments
+     */
+    public Main(final String[] args) {
+        final String argumentString = Arrays.toString(args);
+        LOGGER.info("Starting the participant service with arguments - {}", argumentString);
+
+        // Check the arguments
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        try {
+            // The arguments return a string if there is a message to print and we should exit
+            final String argumentMessage = arguments.parse(args);
+            if (argumentMessage != null) {
+                LOGGER.info(argumentMessage);
+                return;
+            }
+            // Validate that the arguments are sane
+            arguments.validate();
+
+            // Read the parameters
+            parameterGroup = new ParticipantSimulatorParameterHandler().getParameters(arguments);
+
+            // Now, create the activator for the service
+            activator = new ParticipantSimulatorActivator(parameterGroup);
+
+            // Start the activator
+            activator.start();
+        } catch (Exception exp) {
+            throw new ControlLoopRuntimeException(Response.Status.BAD_REQUEST,
+                String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP), exp);
+        }
+
+        // Add a shutdown hook to shut everything down in an orderly manner
+        Runtime.getRuntime().addShutdownHook(new ClParticipantSimulatorShutdownHookClass());
+        String successMsg = String.format(MessageConstants.START_SUCCESS_MSG, MessageConstants.POLICY_CLAMP);
+        LOGGER.info(successMsg);
+    }
+
+    /**
+     * Check if main is running.
+     */
+    public boolean isRunning() {
+        return activator != null && activator.isAlive();
+    }
+
+    /**
+     * Shut down Execution.
+     *
+     * @throws ControlLoopException on shutdown errors
+     */
+    public void shutdown() throws ControlLoopException {
+        // clear the parameterGroup variable
+        parameterGroup = null;
+
+        // clear the cl participant activator
+        if (activator != null) {
+            activator.stop();
+        }
+    }
+
+    /**
+     * The Class ClParticipantSimulatorShutdownHookClass terminates the control loop participant service
+     * when its run method is called.
+     */
+    private class ClParticipantSimulatorShutdownHookClass extends Thread {
+        /*
+         * (non-Javadoc)
+         *
+         * @see java.lang.Runnable#run()
+         */
+        @Override
+        public void run() {
+            try {
+                // Shutdown the participant simulator and wait for everything to stop
+                shutdown();
+            } catch (final RuntimeException | ControlLoopException e) {
+                LOGGER.warn("error occured during shut down of the participant simulator", e);
+            }
+        }
+    }
+
+    /**
+     * The main method.
+     *
+     * @param args the arguments
+     */
+    public static void main(final String[] args) {      // NOSONAR
+        /*
+         * NOTE: arguments are validated by the constructor, thus sonar is disabled.
+         */
+
+        new Main(args);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorActivator.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorActivator.java
new file mode 100644
index 000000000..4daa0393f
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorActivator.java
@@ -0,0 +1,75 @@
+/*-
+ * ============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.startstop;
+
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.rest.ParticipantSimulatorAafFilter;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationHandler;
+import org.onap.policy.common.endpoints.http.server.RestServer;
+import org.onap.policy.common.utils.services.ServiceManagerContainer;
+
+/**
+ * This class activates the participant simulator component as a complete service together with all its controllers,
+ * listeners and handlers.
+ */
+public class ParticipantSimulatorActivator extends ServiceManagerContainer {
+    @Getter
+    private final ParticipantSimulatorParameters parameters;
+
+    /**
+     * Instantiate the activator for the simulator as a complete service.
+     *
+     * @param parameters the parameters for the participant service
+     */
+    public ParticipantSimulatorActivator(final ParticipantSimulatorParameters parameters) {
+        this.parameters = parameters;
+
+        final AtomicReference<SimulationHandler> simulationHandler = new AtomicReference<>();
+        final AtomicReference<RestServer> restServer = new AtomicReference<>();
+
+        // @formatter:off
+        addAction("Simulation Handler",
+            () -> simulationHandler.set(new SimulationHandler(parameters)),
+            () -> simulationHandler.get().close());
+
+        addAction("Simulation Providers",
+            () -> simulationHandler.get().startProviders(),
+            () -> simulationHandler.get().stopProviders());
+
+        parameters.getRestServerParameters().setName(parameters.getName());
+
+        addAction("REST server",
+            () -> {
+                Set<Class<?>> providerClasses = simulationHandler.get().getProviderClasses();
+
+                RestServer server = new RestServer(parameters.getRestServerParameters(),
+                        ParticipantSimulatorAafFilter.class,
+                        providerClasses.toArray(new Class<?>[providerClasses.size()]));
+                restServer.set(server);
+                restServer.get().start();
+            },
+            () -> restServer.get().stop());
+        // @formatter:on
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorCommandLineArguments.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorCommandLineArguments.java
new file mode 100644
index 000000000..51ac3a4d5
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/ParticipantSimulatorCommandLineArguments.java
@@ -0,0 +1,151 @@
+/*-
+ * ============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.startstop;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.URL;
+import java.util.Arrays;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import lombok.Setter;
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.apache.commons.lang3.StringUtils;
+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.startstop.CommonCommandLineArguments;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+
+/**
+ * This class reads and handles command line parameters for the participant simulator service.
+ *
+ */
+public class ParticipantSimulatorCommandLineArguments {
+    private static final String FILE_MESSAGE_PREAMBLE = " file \"";
+    private static final int HELP_LINE_LENGTH = 120;
+
+    private final Options options;
+    private final CommonCommandLineArguments commonCommandLineArguments;
+
+    @Getter()
+    @Setter()
+    private String configurationFilePath = null;
+
+    /**
+     * Construct the options for the participant component.
+     */
+    public ParticipantSimulatorCommandLineArguments() {
+        options = new Options();
+        commonCommandLineArguments = new CommonCommandLineArguments(options);
+    }
+
+    /**
+     * Construct the options for the participant component and parse in the given arguments.
+     *
+     * @param args The command line arguments
+     */
+    public ParticipantSimulatorCommandLineArguments(final String[] args) {
+        // Set up the options with the default constructor
+        this();
+
+        // Parse the arguments
+        try {
+            parse(args);
+        } catch (final ControlLoopException e) {
+            throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+                    "parse error on participant parameters", e);
+        }
+    }
+
+    /**
+     * Parse the command line options.
+     *
+     * @param args The command line arguments
+     * @return a string with a message for help and version, or null if there is no message
+     * @throws ControlLoopException on command argument errors
+     */
+    public String parse(final String[] args) throws ControlLoopException {
+        // Clear all our arguments
+        setConfigurationFilePath(null);
+        CommandLine commandLine = null;
+        try {
+            commandLine = new DefaultParser().parse(options, args);
+        } catch (final ParseException e) {
+            throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
+                    "invalid command line arguments specified : " + e.getMessage());
+        }
+
+        // Arguments left over after Commons CLI does its stuff
+        final String[] remainingArgs = commandLine.getArgs();
+
+        if (remainingArgs.length > 0) {
+            throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
+                    "too many command line arguments specified : " + Arrays.toString(args));
+        }
+
+        if (commandLine.hasOption('h')) {
+            return commonCommandLineArguments.help(Main.class.getName(), options);
+        }
+
+        if (commandLine.hasOption('v')) {
+            return commonCommandLineArguments.version();
+        }
+
+        if (commandLine.hasOption('c')) {
+            setConfigurationFilePath(commandLine.getOptionValue('c'));
+        }
+
+        return null;
+    }
+
+    /**
+     * Validate the command line options.
+     *
+     * @throws ControlLoopException on command argument validation errors
+     */
+    public void validate() throws ControlLoopException {
+        commonCommandLineArguments.validate(configurationFilePath);
+    }
+
+    /**
+     * Gets the full expanded configuration file path.
+     *
+     * @return the configuration file path
+     */
+    public String getFullConfigurationFilePath() {
+        return ResourceUtils.getFilePath4Resource(getConfigurationFilePath());
+    }
+
+    /**
+     * Check set configuration file path.
+     *
+     * @return true, if check set configuration file path
+     */
+    public boolean checkSetConfigurationFilePath() {
+        return !StringUtils.isEmpty(configurationFilePath);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationHandler.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationHandler.java
new file mode 100644
index 000000000..df7f2a611
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationHandler.java
@@ -0,0 +1,81 @@
+/*-
+ * ============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.simulation;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Set;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.handler.ControlLoopHandler;
+import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.rest.SimulationElementController;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.rest.SimulationParticipantController;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.base.PfModelRuntimeException;
+
+/**
+ * This class handles simulation of participants and control loop elements.
+ *
+ * <p/>It is effectively a singleton that is started at system start.
+ */
+public class SimulationHandler extends ControlLoopHandler {
+    private final ParticipantIntermediaryParameters participantParameters;
+
+    @Getter
+    private SimulationProvider simulationProvider;
+
+    /**
+     * Create a handler.
+     *
+     * @param parameters the parameters for access to the database
+     */
+    public SimulationHandler(ParticipantSimulatorParameters parameters) {
+        super(parameters.getDatabaseProviderParameters());
+        participantParameters = parameters.getIntermediaryParameters();
+    }
+
+    public static SimulationHandler getInstance() {
+        return Registry.get(SimulationHandler.class.getName());
+    }
+
+    @Override
+    public Set<Class<?>> getProviderClasses() {
+        return Set.of(SimulationElementController.class, SimulationParticipantController.class);
+    }
+
+    @Override
+    public void startProviders() {
+        simulationProvider = new SimulationProvider(participantParameters);
+    }
+
+    @Override
+    public void stopProviders() {
+        try {
+            simulationProvider.close();
+        } catch (IOException e) {
+            throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Stop providers failed ", e);
+        }
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationProvider.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationProvider.java
new file mode 100644
index 000000000..1fcbba3af
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/SimulationProvider.java
@@ -0,0 +1,129 @@
+/*-
+ * ============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.simulation;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+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.ControlLoops;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
+import org.onap.policy.clamp.controlloop.models.messages.rest.TypedSimpleResponse;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryFactory;
+import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters;
+
+/**
+ * This provider class simulation of participants and control loop elements.
+ */
+public class SimulationProvider implements Closeable {
+    @Getter
+    private final ParticipantIntermediaryApi intermediaryApi;
+
+    /**
+     * Create a participant simulation provider.
+     *
+     * @throws ControlLoopRuntimeException on errors creating the provider
+     */
+    public SimulationProvider(ParticipantIntermediaryParameters participantParameters)
+                     throws ControlLoopRuntimeException {
+        intermediaryApi = new ParticipantIntermediaryFactory().createApiImplementation();
+        intermediaryApi.init(participantParameters);
+    }
+
+    @Override
+    public void close() throws IOException {
+        intermediaryApi.close();
+    }
+
+    /**
+     * Get the control loops.
+     *
+     * @param name the controlLoop, null to get all
+     * @param version the controlLoop, null to get all
+     * @return the control loops
+     * @throws ControlLoopException on errors getting the control loops
+     */
+    public ControlLoops getControlLoops(String name, String version) throws ControlLoopException {
+        return intermediaryApi.getControlLoops(name, version);
+    }
+
+    /**
+     * Get the simulated control loop elements.
+     *
+     * @param name the controlLoopElement, null to get all
+     * @param version the controlLoopElement, null to get all
+     * @return the control loop elements
+     * @throws ControlLoopException on errors getting the control loop elements
+     */
+    public Map<UUID, ControlLoopElement> getControlLoopElements(String name, String version)
+                    throws ControlLoopException {
+        return intermediaryApi.getControlLoopElements(name, version);
+    }
+
+    /**
+     * Update the given control loop element in the simulator.
+     *
+     * @param element the control loop element to update
+     * @return response simple response returned
+     * @throws ControlLoopException on errors updating the control loop element
+     */
+    public TypedSimpleResponse<ControlLoopElement> updateControlLoopElement(ControlLoopElement element)
+            throws ControlLoopException {
+        TypedSimpleResponse<ControlLoopElement> response = new TypedSimpleResponse<>();
+        response.setResponse(intermediaryApi.updateControlLoopElementState(
+                element.getId(), element.getOrderedState(), element.getState()));
+        return response;
+    }
+
+    /**
+     * Get the current simulated participants.
+     *
+     * @param name the participant, null to get all
+     * @param version the participant, null to get all
+     * @return the list of participants
+     * @throws ControlLoopException on errors getting the participants
+     */
+    public List<Participant> getParticipants(String name, String version) throws ControlLoopException {
+        return intermediaryApi.getParticipants(name, version);
+    }
+
+    /**
+     * Update a simulated participant.
+     *
+     * @param participant the participant to update
+     * @return TypedSimpleResponse simple response
+     * @throws ControlLoopException on errors updating the participant
+     */
+
+    public TypedSimpleResponse<Participant> updateParticipant(Participant participant) throws ControlLoopException {
+        TypedSimpleResponse<Participant> response = new TypedSimpleResponse<>();
+        response.setResponse(intermediaryApi.updateParticipantState(
+                participant.getDefinition(), participant.getParticipantState()));
+        return response;
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationElementController.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationElementController.java
new file mode 100644
index 000000000..1869047c9
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationElementController.java
@@ -0,0 +1,195 @@
+/*-
+ * ============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.simulation.rest;
+
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+import io.swagger.annotations.Authorization;
+import io.swagger.annotations.Extension;
+import io.swagger.annotations.ExtensionProperty;
+import io.swagger.annotations.ResponseHeader;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoops;
+import org.onap.policy.clamp.controlloop.models.messages.rest.SimpleResponse;
+import org.onap.policy.clamp.controlloop.models.messages.rest.TypedSimpleResponse;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.rest.RestController;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class to provide REST end points for participant simulator to query/update details of controlLoopElements.
+ */
+public class SimulationElementController extends RestController {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SimulationElementController.class);
+
+    /**
+     * Queries details of all control loop element within the simulator.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @param name the name of the Control Loop element to get, null to get all
+     * @param version the version of the Control Loop element to get, null to get all
+     * @return the control loop elements
+     */
+    // @formatter:off
+    @GET
+    @Path("/elements/{name}/{version}")
+    @ApiOperation(value = "Query details of the requested simulated control loop elements",
+            notes = "Queries details of the requested simulated control loop elements, "
+                    + "returning all control loop element details",
+            response = ControlLoops.class,
+            tags = {
+                "Clamp Control Loop Participant Simulator API"
+            },
+            authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+            responseHeaders = {
+                    @ResponseHeader(
+                            name = VERSION_MINOR_NAME, description = VERSION_MINOR_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = VERSION_PATCH_NAME, description = VERSION_PATCH_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = REQUEST_ID_NAME, description = REQUEST_ID_HDR_DESCRIPTION,
+                            response = UUID.class)},
+            extensions = {
+                    @Extension(
+                            name = EXTENSION_NAME,
+                            properties = {
+                                    @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                                    @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)
+                            }
+                    )
+            }
+    )
+    @ApiResponses(
+            value = {
+                    @ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+                    @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+                    @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)
+            }
+    )
+    // @formatter:on
+    public Response elements(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
+            @ApiParam(value = "Control loop element name", required = true) @PathParam("name") String name,
+            @ApiParam(value = "Control loop element version", required = true) @PathParam("version") String version) {
+
+        try {
+            Map<UUID, ControlLoopElement> response = getSimulationProvider().getControlLoopElements(name, version);
+            return addLoggingHeaders(addVersionControlHeaders(Response.status(Status.OK)), requestId).entity(response)
+                    .build();
+
+        } catch (ControlLoopException cle) {
+            LOGGER.warn("get of control loop elements failed", cle);
+            SimpleResponse resp = new SimpleResponse();
+            resp.setErrorDetails(cle.getErrorResponse().getErrorMessage());
+            return addLoggingHeaders(
+                    addVersionControlHeaders(Response.status(cle.getErrorResponse().getResponseCode())), requestId)
+                            .entity(resp).build();
+        }
+
+    }
+
+    /**
+     * Updates a control loop element in the simulator.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @param body the body of a control loop element
+     * @return a response
+     */
+    // @formatter:off
+    @PUT
+    @Path("/elements")
+    @ApiOperation(
+            value = "Updates simulated control loop elements",
+            notes = "Updates simulated control loop elements, returning the updated control loop definition IDs",
+            response = TypedSimpleResponse.class,
+            tags = {
+                "Clamp Control Loop Participant Simulator API"
+                },
+            authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+            responseHeaders = {
+                    @ResponseHeader(
+                            name = VERSION_MINOR_NAME,
+                            description = VERSION_MINOR_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = VERSION_PATCH_NAME,
+                            description = VERSION_PATCH_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = VERSION_LATEST_NAME,
+                            description = VERSION_LATEST_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = REQUEST_ID_NAME,
+                            description = REQUEST_ID_HDR_DESCRIPTION,
+                            response = UUID.class)
+                },
+            extensions = {
+                @Extension(
+                    name = EXTENSION_NAME,
+                    properties = {
+                            @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                            @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)
+                    }
+                )
+            }
+        )
+    @ApiResponses(
+            value = {
+                @ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+                @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+                @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)
+            }
+        )
+    // @formatter:on
+    public Response update(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
+            @ApiParam(value = "Body of a control loop element", required = true) ControlLoopElement body) {
+
+        try {
+            TypedSimpleResponse<ControlLoopElement> response =
+                    getSimulationProvider().updateControlLoopElement(body);
+            return addLoggingHeaders(addVersionControlHeaders(Response.status(Status.OK)), requestId).entity(response)
+                    .build();
+
+        } catch (ControlLoopException cle) {
+            LOGGER.warn("update of control loop element failed", cle);
+            TypedSimpleResponse<ControlLoopElement> resp = new TypedSimpleResponse<>();
+            resp.setErrorDetails(cle.getErrorResponse().getErrorMessage());
+            return addLoggingHeaders(
+                    addVersionControlHeaders(Response.status(cle.getErrorResponse().getResponseCode())), requestId)
+                            .entity(resp).build();
+        }
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationParticipantController.java b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationParticipantController.java
new file mode 100644
index 000000000..d6ca6d0d1
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/java/org/onap/policy/clamp/controlloop/participant/simulator/simulation/rest/SimulationParticipantController.java
@@ -0,0 +1,192 @@
+/*-
+ * ============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.simulation.rest;
+
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+import io.swagger.annotations.Authorization;
+import io.swagger.annotations.Extension;
+import io.swagger.annotations.ExtensionProperty;
+import io.swagger.annotations.ResponseHeader;
+import java.util.List;
+import java.util.UUID;
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
+import org.onap.policy.clamp.controlloop.models.messages.rest.SimpleResponse;
+import org.onap.policy.clamp.controlloop.models.messages.rest.TypedSimpleResponse;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.rest.RestController;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class to provide REST end points for participant simulator to query/update details of all participants.
+ */
+public class SimulationParticipantController extends RestController {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SimulationParticipantController.class);
+
+    /**
+     * Queries details of all participants within the simulator.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @param name the name of the participant to get, null to get all
+     * @param version the version of the participant to get, null to get all
+     * @return the participants
+     */
+    // @formatter:off
+    @GET
+    @Path("/participants/{name}/{version}")
+    @ApiOperation(value = "Query details of the requested simulated participants",
+            notes = "Queries details of the requested simulated participants, "
+                    + "returning all participant details",
+            response = List.class,
+            tags = {
+                "Clamp Control Loop Participant Simulator API"
+            },
+            authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+            responseHeaders = {
+                    @ResponseHeader(
+                            name = VERSION_MINOR_NAME, description = VERSION_MINOR_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = VERSION_PATCH_NAME, description = VERSION_PATCH_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(name = REQUEST_ID_NAME, description = REQUEST_ID_HDR_DESCRIPTION,
+                            response = UUID.class)},
+            extensions = {
+                    @Extension(
+                            name = EXTENSION_NAME,
+                            properties = {
+                                    @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                                    @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)
+                            }
+                    )
+            }
+    )
+    @ApiResponses(
+            value = {
+                    @ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+                    @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+                    @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)
+            }
+    )
+    // @formatter:on
+    public Response participants(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
+            @ApiParam(value = "Participant name", required = true) @PathParam("name") String name,
+            @ApiParam(value = "Participant version", required = true) @PathParam("version") String version) {
+
+        try {
+            List<Participant> response = getSimulationProvider().getParticipants(name, version);
+            return addLoggingHeaders(addVersionControlHeaders(Response.status(Status.OK)), requestId).entity(response)
+                    .build();
+
+        } catch (ControlLoopException cle) {
+            LOGGER.warn("get of participants failed", cle);
+            SimpleResponse resp = new SimpleResponse();
+            resp.setErrorDetails(cle.getErrorResponse().getErrorMessage());
+            return addLoggingHeaders(
+                    addVersionControlHeaders(Response.status(cle.getErrorResponse().getResponseCode())), requestId)
+                            .entity(resp).build();
+        }
+
+    }
+
+    /**
+     * Updates a participant in the simulator.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @param body the body of a participant
+     * @return a response
+     */
+    // @formatter:off
+    @PUT
+    @Path("/participants")
+    @ApiOperation(
+            value = "Updates simulated participants",
+            notes = "Updates simulated participants, returning the updated control loop definition IDs",
+            response = TypedSimpleResponse.class,
+            tags = {
+                "Clamp Control Loop Participant Simulator API"
+                },
+            authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+            responseHeaders = {
+                    @ResponseHeader(
+                            name = VERSION_MINOR_NAME,
+                            description = VERSION_MINOR_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = VERSION_PATCH_NAME,
+                            description = VERSION_PATCH_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = VERSION_LATEST_NAME,
+                            description = VERSION_LATEST_DESCRIPTION,
+                            response = String.class),
+                    @ResponseHeader(
+                            name = REQUEST_ID_NAME,
+                            description = REQUEST_ID_HDR_DESCRIPTION,
+                            response = UUID.class)
+                },
+            extensions = {
+                @Extension(
+                    name = EXTENSION_NAME,
+                    properties = {
+                            @ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                            @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)
+                    }
+                )
+            }
+        )
+    @ApiResponses(
+            value = {
+                @ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+                @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+                @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)
+            }
+        )
+    // @formatter:on
+    public Response update(@HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) UUID requestId,
+            @ApiParam(value = "Body of a participant", required = true) Participant body) {
+
+        try {
+            TypedSimpleResponse<Participant> response = getSimulationProvider().updateParticipant(body);
+            return addLoggingHeaders(addVersionControlHeaders(Response.status(Status.OK)), requestId).entity(response)
+                    .build();
+
+        } catch (ControlLoopException cle) {
+            LOGGER.warn("update of participant failed", cle);
+            TypedSimpleResponse<Participant> resp = new TypedSimpleResponse<>();
+            resp.setErrorDetails(cle.getErrorResponse().getErrorMessage());
+            return addLoggingHeaders(
+                    addVersionControlHeaders(Response.status(cle.getErrorResponse().getResponseCode())), requestId)
+                            .entity(resp).build();
+        }
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/resources/config/CDSParticipantConfig.json b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/CDSParticipantConfig.json
new file mode 100644
index 000000000..3eca87678
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/CDSParticipantConfig.json
@@ -0,0 +1,31 @@
+{
+    "name":"ParticipantParameterGroup",
+    "participantStatusParameters":{
+        "timeIntervalMs": 10000,
+        "description":"Participant Status",
+        "participantType":{
+            "name": "org.onap.ccsdk.cds.controlloop.CdsControlLoopParticipant",
+            "version":"2.2.1"
+        },
+        "participantId":{
+            "name": "CDSParticipant0",
+            "version":"1.0.0"
+        },
+        "participantDefinition":{
+            "name": "org.onap.ccsdk.cds.controlloop.CdsControlLoopParticipant",
+            "version":"3.2.1"
+        }
+    },
+    "topicParameterGroup": {
+        "topicSources" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }],
+        "topicSinks" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }]
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/resources/config/DCAEParticipantConfig.json b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/DCAEParticipantConfig.json
new file mode 100644
index 000000000..e80570f93
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/DCAEParticipantConfig.json
@@ -0,0 +1,31 @@
+{
+    "name":"ParticipantParameterGroup",
+    "participantStatusParameters":{
+        "timeIntervalMs": 10000,
+        "description":"Participant Status",
+        "participantType":{
+            "name": "org.onap.dcae.controlloop.DCAEMicroserviceControlLoopParticipant",
+            "version":"2.3.4"
+        },
+        "participantId":{
+            "name": "DCAEParticipant0",
+            "version":"1.0.0"
+        },
+        "participantDefinition":{
+            "name": "org.onap.dcae.controlloop.DCAEMicroserviceControlLoopParticipant",
+            "version":"2.3.4"
+        }
+    },
+    "topicParameterGroup": {
+        "topicSources" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }],
+        "topicSinks" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }]
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/resources/config/PolicyParticipantConfig.json b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/PolicyParticipantConfig.json
new file mode 100644
index 000000000..8c8fa33cb
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/resources/config/PolicyParticipantConfig.json
@@ -0,0 +1,31 @@
+{
+    "name":"ParticipantParameterGroup",
+    "participantStatusParameters":{
+        "timeIntervalMs":10000,
+        "description":"Participant Status",
+        "participantType":{
+            "name": "org.onap.policy.controlloop.PolicyControlLoopParticipant",
+            "version":"2.3.1"
+        },
+        "participantId":{
+            "name": "PolicyParticipant0",
+            "version":"1.0.0"
+        },
+        "participantDefinition":{
+            "name": "org.onap.policy.controlloop.PolicyControlLoopParticipant",
+            "version":"2.3.1"
+        }
+    },
+    "topicParameterGroup": {
+        "topicSources" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }],
+        "topicSinks" : [{
+            "topic" : "POLICY-CLRUNTIME-PARTICIPANT",
+            "servers" : [ "127.0.0.1:3904" ],
+            "topicCommInfrastructure" : "dmaap"
+        }]
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/main/resources/version.txt b/participant/participant-impl/participant-impl-simulator/src/main/resources/version.txt
new file mode 100644
index 000000000..dbd67585f
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/main/resources/version.txt
@@ -0,0 +1,4 @@
+ONAP Tosca defined control loop Participant
+Version: ${project.version}
+Built (UTC): ${maven.build.timestamp}
+ONAP https://wiki.onap.org
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/intermediary/TestControlLoopUpdateListener.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/intermediary/TestControlLoopUpdateListener.java
new file mode 100644
index 000000000..a307d3457
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/intermediary/TestControlLoopUpdateListener.java
@@ -0,0 +1,91 @@
+/*-
+ * ============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.intermediary;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
+import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ControlLoopUpdateListener;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.rest.TestListenerUtils;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.common.utils.coder.CoderException;
+
+/**
+ * Class to perform unit test of {@link ControlLoopUpdateListener}.
+ */
+public class TestControlLoopUpdateListener {
+    private static ControlLoopUpdateListener clUpdateListener;
+    private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
+    private static final String TOPIC = "my-topic";
+    static CommonTestData commonTestData = new CommonTestData();
+
+    /**
+     * Method for setup.
+     *
+     * @throws ParticipantException if some error occurs while starting up the participant
+     * @throws FileNotFoundException if the file is missing
+     * @throws IOException if IO exception occurs
+     */
+    @BeforeClass
+    public static void setUp() throws ControlLoopException, FileNotFoundException, IOException {
+        TestListenerUtils.initParticipantHandler();
+        clUpdateListener = new ControlLoopUpdateListener(TestListenerUtils.getParticipantHandler());
+    }
+
+    @Test
+    public void testControlLoopUpdateListener_ParticipantIdNoMatch() throws CoderException {
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg = prepareMsg("DummyName");
+        clUpdateListener.onTopicEvent(INFRA, TOPIC, null, participantControlLoopUpdateMsg);
+
+        // Verify the content in participantHandler
+        assertNotEquals(participantControlLoopUpdateMsg.getParticipantId().getName(),
+                TestListenerUtils.getParticipantHandler().getParticipantId().getName());
+    }
+
+    @Test
+    public void testControlLoopUpdateListener() throws CoderException {
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg = prepareMsg("org.onap.PM_CDS_Blueprint");
+        clUpdateListener.onTopicEvent(INFRA, TOPIC, null, participantControlLoopUpdateMsg);
+
+        // Verify the content in participantHandler
+        assertEquals(TestListenerUtils.getParticipantHandler().getParticipantId(),
+                participantControlLoopUpdateMsg.getParticipantId());
+        assertThat(TestListenerUtils.getParticipantHandler().getControlLoopHandler().getControlLoops()
+                .getControlLoopList()).hasSize(1);
+    }
+
+    private ParticipantControlLoopUpdate prepareMsg(final String participantName) {
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg;
+        participantControlLoopUpdateMsg = TestListenerUtils.createControlLoopUpdateMsg();
+        participantControlLoopUpdateMsg.getParticipantId().setName(participantName);
+        participantControlLoopUpdateMsg.getControlLoop().setOrderedState(ControlLoopOrderedState.PASSIVE);
+        return participantControlLoopUpdateMsg;
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/CommonTestData.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/CommonTestData.java
new file mode 100644
index 000000000..0a8754256
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/CommonTestData.java
@@ -0,0 +1,249 @@
+/*-
+ * ============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.parameters;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import javax.ws.rs.core.Response;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.common.endpoints.parameters.TopicParameters;
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+/**
+ * Class to hold/create all parameters for test cases.
+ */
+public class CommonTestData {
+    public static final String PARTICIPANT_GROUP_NAME = "ControlLoopParticipantGroup";
+    public static final String DESCRIPTION = "Participant description";
+    public static final long TIME_INTERVAL = 2000;
+    public static final List<TopicParameters> TOPIC_PARAMS = Arrays.asList(getTopicParams());
+    private static final String REST_SERVER_PASSWORD = "zb!XztG34";
+    private static final String REST_SERVER_USER = "healthcheck";
+    private static final int REST_SERVER_PORT = 6969;
+    private static final String REST_SERVER_HOST = "0.0.0.0";
+    private static final boolean REST_SERVER_HTTPS = true;
+    private static final boolean REST_SERVER_AAF = false;
+
+    public static final Coder coder = new StandardCoder();
+
+    /**
+     * Converts the contents of a map to a parameter class.
+     *
+     * @param source property map
+     * @param clazz class of object to be created from the map
+     * @return a new object represented by the map
+     */
+    public <T extends ParameterGroup> T toObject(final Map<String, Object> source, final Class<T> clazz) {
+        try {
+            return coder.convert(source, clazz);
+        } catch (final CoderException e) {
+            throw new RuntimeException("cannot create " + clazz.getName() + " from map", e);
+        }
+    }
+
+    /**
+     * Returns a property map for a ApexStarterParameterGroup map for test cases.
+     *
+     * @param name name of the parameters
+     *
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getParticipantParameterGroupMap(final String name) {
+        final Map<String, Object> map = new TreeMap<>();
+
+        map.put("name", name);
+        map.put("restServerParameters", getRestServerParametersMap(false));
+        map.put("intermediaryParameters", getIntermediaryParametersMap(false));
+        map.put("databaseProviderParameters", getDatabaseProviderParametersMap(false));
+        return map;
+    }
+
+    /**
+     * Returns a property map for a RestServerParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getRestServerParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        map.put("https", REST_SERVER_HTTPS);
+        map.put("aaf", REST_SERVER_AAF);
+
+        if (!isEmpty) {
+            map.put("host", REST_SERVER_HOST);
+            map.put("port", REST_SERVER_PORT);
+            map.put("userName", REST_SERVER_USER);
+            map.put("password", REST_SERVER_PASSWORD);
+        }
+
+        return map;
+    }
+
+    /**
+     * Returns a property map for a databaseProviderParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getDatabaseProviderParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("name", "PolicyProviderParameterGroup");
+            map.put("implementation", "org.onap.policy.models.provider.impl.DatabasePolicyModelsProviderImpl");
+            map.put("databaseDriver", "org.h2.Driver");
+            map.put("databaseUrl", "jdbc:h2:mem:testdb");
+            map.put("databaseUser", "policy");
+            map.put("databasePassword", "P01icY");
+            map.put("persistenceUnit", "ToscaConceptTest");
+        }
+
+        return map;
+    }
+
+    /**
+     * Returns a property map for a intermediaryParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getIntermediaryParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("name", "Participant parameters");
+            map.put("reportingTimeInterval", TIME_INTERVAL);
+            map.put("description", DESCRIPTION);
+            map.put("participantId", getParticipantId());
+            map.put("participantType", getParticipantId());
+            map.put("clampControlLoopTopics", getTopicParametersMap(false));
+        }
+
+        return map;
+    }
+
+    /**
+     * Returns a property map for a TopicParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getTopicParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("topicSources", TOPIC_PARAMS);
+            map.put("topicSinks", TOPIC_PARAMS);
+        }
+        return map;
+    }
+
+    /**
+     * Returns topic parameters for test cases.
+     *
+     * @return topic parameters
+     */
+    public static TopicParameters getTopicParams() {
+        final TopicParameters topicParams = new TopicParameters();
+        topicParams.setTopic("POLICY-CLRUNTIME-PARTICIPANT");
+        topicParams.setTopicCommInfrastructure("dmaap");
+        topicParams.setServers(Arrays.asList("localhost"));
+        return topicParams;
+    }
+
+    /**
+     * Returns participantId for test cases.
+     *
+     * @return participant Id
+     */
+    public static ToscaConceptIdentifier getParticipantId() {
+        final ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_CDS_Blueprint", "1.0.0");
+        return participantId;
+    }
+
+    /**
+     * Gets the standard participant parameters.
+     *
+     * @param port port to be inserted into the parameters
+     * @return the standard participant parameters
+     */
+    public ParticipantSimulatorParameters getParticipantParameterGroup(int port) {
+        try {
+            return coder.decode(getParticipantParameterGroupAsString(port), ParticipantSimulatorParameters.class);
+
+        } catch (CoderException e) {
+            throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+                    "cannot read participant parameters", e);
+        }
+    }
+
+    /**
+     * Gets the standard participant parameters, as a String.
+     *
+     * @param port port to be inserted into the parameters
+     * @return the standard participant parameters
+     */
+    public static String getParticipantParameterGroupAsString(int port) {
+
+        try {
+            File file = new File(getParamFile());
+            String json = new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8);
+
+            json = json.replace("${port}", String.valueOf(port));
+            json = json.replace("${dbName}", "jdbc:h2:mem:testdb");
+
+            return json;
+
+        } catch (IOException e) {
+            throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+                    "cannot read participant parameters", e);
+
+        }
+    }
+
+    /**
+     * Gets the full path to the parameter file, which may vary depending on whether or
+     * not this is an end-to-end test.
+     *
+     * @return the parameter file name
+     */
+    private static String getParamFile() {
+        String paramFile = "src/test/resources/parameters/TestParametersStd.json";
+        return paramFile;
+    }
+
+    /**
+     * Nulls out a field within a JSON string.
+     * @param json JSON string
+     * @param field field to be nulled out
+     * @return a new JSON string with the field nulled out
+     */
+    public String nullifyField(String json, String field) {
+        return json.replace(field + "\"", field + "\":null, \"" + field + "Xxx\"");
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameterHandler.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameterHandler.java
new file mode 100644
index 000000000..e94939af8
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameterHandler.java
@@ -0,0 +1,120 @@
+/*-
+ * ============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.parameters;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.FileNotFoundException;
+import org.apache.commons.io.DirectoryWalker.CancelException;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.startstop.ParticipantSimulatorCommandLineArguments;
+import org.onap.policy.common.utils.coder.CoderException;
+
+/**
+ * Class to perform unit test of {@link ParticipantParameterHandler}.
+ */
+public class TestParticipantSimulatorParameterHandler {
+
+    @Test
+    public void testParameterHandlerNoParameterFile() throws ControlLoopException {
+        final String[] emptyArgumentString = { "-c", "src/test/resources/parameters/NoParametersFile.json" };
+
+        final ParticipantSimulatorCommandLineArguments emptyArguments = new ParticipantSimulatorCommandLineArguments();
+        emptyArguments.parse(emptyArgumentString);
+
+        assertThatThrownBy(() -> new ParticipantSimulatorParameterHandler().getParameters(emptyArguments))
+            .hasCauseInstanceOf(CoderException.class)
+            .hasRootCauseInstanceOf(FileNotFoundException.class);
+    }
+
+    @Test
+    public void testParameterHandlerInvalidParameters() throws ControlLoopException {
+        final String[] invalidArgumentString = { "-c", "src/test/resources/parameters/InvalidParameters.json" };
+
+        final ParticipantSimulatorCommandLineArguments invalidArguments =
+                new ParticipantSimulatorCommandLineArguments();
+        invalidArguments.parse(invalidArgumentString);
+
+        assertThatThrownBy(() -> new ParticipantSimulatorParameterHandler().getParameters(invalidArguments))
+            .hasMessageStartingWith("error reading parameters from")
+            .hasCauseInstanceOf(CoderException.class);
+    }
+
+    @Test
+    public void testParameterHandlerNoParameters() throws CancelException, ControlLoopException {
+        final String[] noArgumentString = { "-c", "src/test/resources/parameters/EmptyParameters.json" };
+
+        final ParticipantSimulatorCommandLineArguments noArguments = new ParticipantSimulatorCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        assertThatThrownBy(() -> new ParticipantSimulatorParameterHandler().getParameters(noArguments))
+            .hasMessageContaining("no parameters found");
+    }
+
+    @Test
+    public void testParticipantParameterGroup() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-c", "src/test/resources/parameters/TestParameters.json"};
+
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        arguments.parse(participantConfigParameters);
+
+        final ParticipantSimulatorParameters parGroup = new ParticipantSimulatorParameterHandler()
+                .getParameters(arguments);
+        assertTrue(arguments.checkSetConfigurationFilePath());
+        assertEquals(CommonTestData.PARTICIPANT_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testParticipantVersion() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-v" };
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        assertThat(arguments.parse(participantConfigParameters)).startsWith(
+                        "ONAP Tosca defined control loop Participant");
+    }
+
+    @Test
+    public void testParticipantHelp() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-h" };
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        assertThat(arguments.parse(participantConfigParameters)).startsWith("usage:");
+    }
+
+    @Test
+    public void testParticipant_TooManyArguments() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-c", "src/test/resources/parameters/TestParameters.json",
+                                                       "TooMany"};
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        assertThatThrownBy(() -> arguments.parse(participantConfigParameters))
+            .hasMessageStartingWith("too many command line arguments specified");
+    }
+
+    @Test
+    public void testParticipantInvalidOption() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-d" };
+        final ParticipantSimulatorCommandLineArguments arguments = new ParticipantSimulatorCommandLineArguments();
+        assertThatThrownBy(() -> arguments.parse(participantConfigParameters))
+            .hasMessageStartingWith("invalid command line arguments specified");
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameters.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameters.java
new file mode 100644
index 000000000..8027d6f08
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/parameters/TestParticipantSimulatorParameters.java
@@ -0,0 +1,110 @@
+/*-
+ * ============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.parameters;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+
+import java.util.Map;
+import org.junit.Test;
+import org.onap.policy.common.parameters.ValidationResult;
+
+/**
+ * Class to perform unit test of {@link ParticipantParameterGroup}.
+ */
+public class TestParticipantSimulatorParameters {
+    CommonTestData commonTestData = new CommonTestData();
+
+    @Test
+    public void testParticipantParameterGroup_Named() {
+        final ParticipantSimulatorParameters participantParameters = new ParticipantSimulatorParameters("my-name");
+        assertEquals("my-name", participantParameters.getName());
+    }
+
+    @Test
+    public void testParticipantParameterGroup() {
+        final ParticipantSimulatorParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantParameterGroupMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantSimulatorParameters.class);
+        assertThat(participantParameters.validate().isValid()).isTrue();
+        assertEquals(CommonTestData.PARTICIPANT_GROUP_NAME, participantParameters.getName());
+    }
+
+    @Test
+    public void testParticipantParameterGroup_NullName() {
+        final ParticipantSimulatorParameters participantParameters = commonTestData
+                .toObject(commonTestData.getParticipantParameterGroupMap(null),
+                        ParticipantSimulatorParameters.class);
+        final ValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals(null, participantParameters.getName());
+        assertThat(validationResult.getResult()).contains("is null");
+    }
+
+    @Test
+    public void testParticipantParameterGroup_EmptyName() {
+        final ParticipantSimulatorParameters participantParameters = commonTestData
+                .toObject(commonTestData.getParticipantParameterGroupMap(""),
+                                ParticipantSimulatorParameters.class);
+        final ValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals("", participantParameters.getName());
+        assertThat(validationResult.getResult()).contains(
+                "item \"name\" value \"\" INVALID, " + "is blank");
+    }
+
+    @Test
+    public void testParticipantParameterGroup_SetName() {
+        final ParticipantSimulatorParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantParameterGroupMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantSimulatorParameters.class);
+        participantParameters.setName("ParticipantNewGroup");
+        assertThat(participantParameters.validate().isValid()).isTrue();
+        assertEquals("ParticipantNewGroup", participantParameters.getName());
+    }
+
+    @Test
+    public void testParticipantParameterGroup_EmptyParticipantIntermediaryParameters() {
+        final Map<String, Object> map =
+                commonTestData.getParticipantParameterGroupMap(CommonTestData.PARTICIPANT_GROUP_NAME);
+        map.replace("intermediaryParameters", commonTestData.getIntermediaryParametersMap(true));
+        final ParticipantSimulatorParameters participantParameters =
+                commonTestData.toObject(map, ParticipantSimulatorParameters.class);
+        final ValidationResult validationResult = participantParameters.validate();
+        assertNull(validationResult.getResult());
+    }
+
+    @Test
+    public void testParticipantParameterGroupp_EmptyTopicParameters() {
+        final Map<String, Object> map =
+                commonTestData.getParticipantParameterGroupMap(CommonTestData.PARTICIPANT_GROUP_NAME);
+        final Map<String, Object> intermediaryParametersMap = commonTestData.getIntermediaryParametersMap(false);
+        intermediaryParametersMap.put("clampControlLoopTopics", commonTestData.getTopicParametersMap(true));
+        map.replace("intermediaryParameters", intermediaryParametersMap);
+
+        final ParticipantSimulatorParameters participantParameters =
+                commonTestData.toObject(map, ParticipantSimulatorParameters.class);
+        final ValidationResult validationResult = participantParameters.validate();
+        assertNull(validationResult.getResult());
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/CommonParticipantRestServer.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/CommonParticipantRestServer.java
new file mode 100644
index 000000000..ae004de49
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/CommonParticipantRestServer.java
@@ -0,0 +1,227 @@
+
+/*-
+ * ============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.rest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import org.glassfish.jersey.client.ClientProperties;
+import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.startstop.Main;
+import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
+import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
+import org.onap.policy.common.gson.GsonMessageBodyHandler;
+import org.onap.policy.common.utils.network.NetworkUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class to perform Rest unit tests.
+ *
+ */
+
+public class CommonParticipantRestServer {
+
+    private static final String CONFIG_FILE = "src/test/resources/parameters/TestConfigParameters.json";
+    private static final Logger LOGGER = LoggerFactory.getLogger(CommonParticipantRestServer.class);
+    public static final String SELF = NetworkUtil.getHostname();
+    public static final String ENDPOINT_PREFIX = "onap/participantsim/v2/";
+    private static int port;
+    private static String httpPrefix;
+    private static Main main;
+
+    /**
+     * Allocates a port for the server, writes a config file, and then starts Main.
+     *
+     * @throws Exception if an error occurs
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        setUpBeforeClass(true);
+    }
+
+    /**
+     * Allocates a port for the server, writes a config file, and then starts Main, if
+     * specified.
+     *
+     * @param shouldStart {@code true} if Main should be started, {@code false} otherwise
+     * @throws Exception if an error occurs
+     */
+    public static void setUpBeforeClass(boolean shouldStart) throws Exception {
+        port = NetworkUtil.allocPort();
+        httpPrefix = "http://localhost:" + port + "/";
+
+        makeConfigFile();
+        HttpServletServerFactoryInstance.getServerFactory().destroy();
+        TopicEndpointManager.getManager().shutdown();
+
+        if (shouldStart) {
+            startMain();
+        }
+    }
+
+    /**
+     * Stops Main.
+     */
+    @AfterClass
+    public static void teardownAfterClass() {
+        try {
+            stopMain();
+
+        } catch (ControlLoopException exp) {
+            LOGGER.error("cannot stop main", exp);
+        }
+    }
+
+    /**
+     * Set up.
+     *
+     * @throws Exception if an error occurs
+     */
+    @Before
+    public void setUp() throws Exception {
+        // restart, if not currently running
+        if (main == null) {
+            startMain();
+        }
+    }
+
+    /**
+     * Verifies that an endpoint appears within the swagger response.
+     *
+     * @param endpoint the endpoint of interest
+     * @throws Exception if an error occurs
+     */
+    protected void testSwagger(final String endpoint) throws Exception {
+        final Invocation.Builder invocationBuilder = sendFqeRequest(httpPrefix + "swagger.yaml", true);
+        assertThat(invocationBuilder.get(String.class)).contains(ENDPOINT_PREFIX + endpoint + ":");
+    }
+
+    /**
+     * Makes a parameter configuration file.
+     *
+     * @throws IOException if an error occurs writing the configuration file
+     * @throws FileNotFoundException if an error occurs writing the configuration file
+     *
+     * @throws Exception if an error occurs
+     */
+    private static void makeConfigFile() throws FileNotFoundException, IOException {
+        String json = CommonTestData.getParticipantParameterGroupAsString(port);
+        File file = new File(String.format(CONFIG_FILE, port));
+        file.deleteOnExit();
+        try (FileOutputStream output = new FileOutputStream(file)) {
+            output.write(json.getBytes(StandardCharsets.UTF_8));
+        }
+    }
+
+    /**
+     * Starts the "Main".
+     *
+     * @throws InterruptedException
+     *
+     * @throws Exception if an error occurs
+     */
+    protected static void startMain() throws InterruptedException {
+        // make sure port is available
+        if (NetworkUtil.isTcpPortOpen("localhost", port, 1, 1L)) {
+            throw new IllegalStateException("port " + port + " is still in use");
+        }
+
+        final String[] configParameters = { "-c", CONFIG_FILE };
+
+        main = new Main(configParameters);
+
+        if (!NetworkUtil.isTcpPortOpen("localhost", port, 40, 250L)) {
+            throw new IllegalStateException("server is not listening on port " + port);
+        }
+    }
+
+    /**
+     * Stops the "Main".
+     *
+     * @throws ControlLoopException
+     *
+     * @throws Exception if an error occurs
+     */
+    private static void stopMain() throws ControlLoopException {
+        if (main != null) {
+            main.shutdown();
+            main = null;
+        }
+    }
+
+    /**
+     * Sends a request to an endpoint.
+     *
+     * @param endpoint the target endpoint
+     * @return a request builder
+     * @throws Exception if an error occurs
+     */
+    protected Invocation.Builder sendRequest(final String endpoint) throws Exception {
+        return sendFqeRequest(httpPrefix + ENDPOINT_PREFIX + endpoint, true);
+    }
+
+    /**
+     * Sends a request to an endpoint, without any authorization header.
+     *
+     * @param endpoint the target endpoint
+     * @return a request builder
+     * @throws Exception if an error occurs
+     */
+    protected Invocation.Builder sendNoAuthRequest(final String endpoint) throws Exception {
+        return sendFqeRequest(httpPrefix + ENDPOINT_PREFIX + endpoint, false);
+    }
+
+    /**
+     * Sends a request to a fully qualified endpoint.
+     *
+     * @param fullyQualifiedEndpoint the fully qualified target endpoint
+     * @param includeAuth if authorization header should be included
+     * @return a request builder
+     * @throws Exception if an error occurs
+     */
+    protected Invocation.Builder sendFqeRequest(final String fullyQualifiedEndpoint, boolean includeAuth)
+            throws Exception {
+        final Client client = ClientBuilder.newBuilder().build();
+        client.property(ClientProperties.METAINF_SERVICES_LOOKUP_DISABLE, "true");
+        client.register(GsonMessageBodyHandler.class);
+        if (includeAuth) {
+            client.register(HttpAuthenticationFeature.basic("healthcheck", "zb!XztG34"));
+        }
+        final WebTarget webTarget = client.target(fullyQualifiedEndpoint);
+        return webTarget.request(MediaType.APPLICATION_JSON);
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestControllerTest.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestControllerTest.java
new file mode 100644
index 000000000..1311eee35
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/RestControllerTest.java
@@ -0,0 +1,95 @@
+/*
+ * ============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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.simulator.main.rest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.UUID;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.ResponseBuilder;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationHandler;
+import org.onap.policy.common.utils.services.Registry;
+
+public class RestControllerTest {
+
+    private RestController ctlr;
+    private ResponseBuilder bldr;
+
+    /**
+     * Setup before class, instantiate SimulationHandler.
+     *
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        Registry.newRegistry();
+        Registry.register(SimulationHandler.class.getName(), Mockito.mock(SimulationHandler.class));
+    }
+
+    @AfterClass
+    public static void teardownAfterClass() throws Exception {
+        Registry.unregister(SimulationHandler.class.getName());
+    }
+
+    /**
+     * set Up.
+     */
+    @Before
+    public void setUp() {
+        ctlr = new RestController();
+        bldr = Response.status(Response.Status.OK);
+    }
+
+    @Test
+    public void testProduces() {
+        Produces annotation = RestController.class.getAnnotation(Produces.class);
+        assertNotNull(annotation);
+        assertThat(annotation.value()).contains(MediaType.APPLICATION_JSON)
+                        .contains(RestController.APPLICATION_YAML);
+    }
+
+    @Test
+    public void testAddVersionControlHeaders() {
+        Response resp = ctlr.addVersionControlHeaders(bldr).build();
+        assertEquals("0", resp.getHeaderString(RestController.VERSION_MINOR_NAME));
+        assertEquals("0", resp.getHeaderString(RestController.VERSION_PATCH_NAME));
+        assertEquals("1.0.0", resp.getHeaderString(RestController.VERSION_LATEST_NAME));
+    }
+
+    @Test
+    public void testAddLoggingHeaders_Null() {
+        Response resp = ctlr.addLoggingHeaders(bldr, null).build();
+        assertNotNull(resp.getHeaderString(RestController.REQUEST_ID_NAME));
+    }
+
+    @Test
+    public void testAddLoggingHeaders_NonNull() {
+        UUID uuid = UUID.randomUUID();
+        Response resp = ctlr.addLoggingHeaders(bldr, uuid).build();
+        assertEquals(uuid.toString(), resp.getHeaderString(RestController.REQUEST_ID_NAME));
+    }
+}
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
new file mode 100644
index 000000000..9c20ffe22
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestListenerUtils.java
@@ -0,0 +1,258 @@
+/*-
+ * ============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.rest;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import lombok.Getter;
+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.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantState;
+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.ParticipantStateChange;
+import org.onap.policy.clamp.controlloop.participant.intermediary.handler.ParticipantHandler;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationProvider;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.coder.YamlJsonTranslator;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public 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 TestListenerUtils() {}
+
+    @Getter
+    private static ParticipantHandler participantHandler;
+
+    /**
+     * Method to initialize participantHandler.
+     */
+    public static void initParticipantHandler() {
+
+        final ParticipantSimulatorParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantParameterGroupMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantSimulatorParameters.class);
+
+        SimulationProvider simulationProvider =
+                new SimulationProvider(participantParameters.getIntermediaryParameters());
+
+        participantHandler = simulationProvider.getIntermediaryApi().getParticipantHandler();
+    }
+
+    /**
+     * Method to create a controlLoop from a yaml file.
+     *
+     * @return ControlLoop controlloop
+     */
+    public static ControlLoop createControlLoop() {
+        ControlLoop controlLoop = new ControlLoop();
+        Map<UUID, ControlLoopElement> elements = new LinkedHashMap<>();
+        ToscaServiceTemplate toscaServiceTemplate = testControlLoopRead();
+        Map<String, ToscaNodeTemplate> nodeTemplatesMap =
+                toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
+            ControlLoopElement clElement = new ControlLoopElement();
+            clElement.setId(UUID.randomUUID());
+
+            ToscaConceptIdentifier clElementParticipantId = new ToscaConceptIdentifier();
+            clElementParticipantId.setName(toscaInputEntry.getKey());
+            clElementParticipantId.setVersion(toscaInputEntry.getValue().getVersion());
+            clElement.setParticipantId(clElementParticipantId);
+            clElement.setParticipantType(clElementParticipantId);
+
+            clElement.setDefinition(clElementParticipantId);
+            clElement.setState(ControlLoopState.UNINITIALISED);
+            clElement.setDescription(toscaInputEntry.getValue().getDescription());
+            clElement.setOrderedState(ControlLoopOrderedState.UNINITIALISED);
+            elements.put(clElement.getId(), clElement);
+        }
+        controlLoop.setElements(elements);
+        controlLoop.setName("PMSHInstance0");
+        controlLoop.setVersion("1.0.0");
+
+        ToscaConceptIdentifier definition = new ToscaConceptIdentifier();
+        definition.setName("PMSHInstance0");
+        definition.setVersion("1.0.0");
+        controlLoop.setDefinition(definition);
+
+        return controlLoop;
+    }
+
+    /**
+     * Method to create ParticipantStateChange message from the arguments passed.
+     *
+     * @param participantState participant State
+     *
+     * @return ParticipantStateChange message
+     */
+    public static ParticipantStateChange createParticipantStateChangeMsg(final ParticipantState participantState) {
+        final ParticipantStateChange participantStateChangeMsg = new ParticipantStateChange();
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_CDS_Blueprint", "1.0.0");
+
+        participantStateChangeMsg.setParticipantId(participantId);
+        participantStateChangeMsg.setTimestamp(Instant.now());
+        participantStateChangeMsg.setState(participantState);
+
+        return participantStateChangeMsg;
+    }
+
+    /**
+     * Method to create ControlLoopStateChange message from the arguments passed.
+     *
+     * @param controlLoopOrderedState controlLoopOrderedState
+     *
+     * @return ParticipantControlLoopStateChange message
+     */
+    public static ParticipantControlLoopStateChange createControlLoopStateChangeMsg(
+            final ControlLoopOrderedState controlLoopOrderedState) {
+        final ParticipantControlLoopStateChange participantClStateChangeMsg = new ParticipantControlLoopStateChange();
+
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_CDS_Blueprint", "1.0.0");
+
+        participantClStateChangeMsg.setControlLoopId(controlLoopId);
+        participantClStateChangeMsg.setParticipantId(participantId);
+        participantClStateChangeMsg.setTimestamp(Instant.now());
+        participantClStateChangeMsg.setOrderedState(controlLoopOrderedState);
+
+        return participantClStateChangeMsg;
+    }
+
+    /**
+     * Method to create ControlLoopUpdateMsg.
+     *
+     * @return ParticipantControlLoopUpdate message
+     */
+    public static ParticipantControlLoopUpdate createControlLoopUpdateMsg() {
+        final ParticipantControlLoopUpdate clUpdateMsg = new ParticipantControlLoopUpdate();
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier("PMSHInstance0", "1.0.0");
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_CDS_Blueprint", "1.0.0");
+
+        clUpdateMsg.setControlLoopId(controlLoopId);
+        clUpdateMsg.setParticipantId(participantId);
+        clUpdateMsg.setParticipantType(participantId);
+
+        ControlLoop controlLoop = new ControlLoop();
+        Map<UUID, ControlLoopElement> elements = new LinkedHashMap<>();
+        ToscaServiceTemplate toscaServiceTemplate = testControlLoopRead();
+        Map<String, ToscaNodeTemplate> nodeTemplatesMap =
+                toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
+            ControlLoopElement clElement = new ControlLoopElement();
+            clElement.setId(UUID.randomUUID());
+
+            ToscaConceptIdentifier clElementParticipantId = new ToscaConceptIdentifier();
+            clElementParticipantId.setName(toscaInputEntry.getKey());
+            clElementParticipantId.setVersion(toscaInputEntry.getValue().getVersion());
+            clElement.setParticipantId(clElementParticipantId);
+            clElement.setParticipantType(clElementParticipantId);
+
+            clElement.setDefinition(clElementParticipantId);
+            clElement.setState(ControlLoopState.UNINITIALISED);
+            clElement.setDescription(toscaInputEntry.getValue().getDescription());
+            clElement.setOrderedState(ControlLoopOrderedState.UNINITIALISED);
+            elements.put(clElement.getId(), clElement);
+        }
+        controlLoop.setElements(elements);
+        controlLoop.setName("PMSHInstance0");
+        controlLoop.setVersion("1.0.0");
+        controlLoop.setDefinition(controlLoopId);
+        clUpdateMsg.setControlLoop(controlLoop);
+        clUpdateMsg.setControlLoopDefinition(toscaServiceTemplate);
+
+        return clUpdateMsg;
+    }
+
+    /**
+     * Method to create ParticipantControlLoopUpdate using the arguments passed.
+     *
+     * @param jsonFilePath the path of the controlloop content
+     *
+     * @return ParticipantControlLoopUpdate message
+     * @throws CoderException exception while reading the file to object
+     */
+    public static ParticipantControlLoopUpdate createParticipantClUpdateMsgFromJson(String jsonFilePath)
+            throws CoderException {
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg =
+                CODER.decode(new File(jsonFilePath), ParticipantControlLoopUpdate.class);
+        return participantControlLoopUpdateMsg;
+    }
+
+    private static ToscaServiceTemplate testControlLoopRead() {
+        Set<String> controlLoopDirectoryContents =
+                ResourceUtils.getDirectoryContents("src/test/resources/rest/servicetemplates");
+
+        boolean atLeastOneControlLoopTested = false;
+        ToscaServiceTemplate toscaServiceTemplate = null;
+
+        for (String controlLoopFilePath : controlLoopDirectoryContents) {
+            if (!controlLoopFilePath.endsWith(".yaml")) {
+                continue;
+            }
+            atLeastOneControlLoopTested = true;
+            toscaServiceTemplate = testControlLoopYamlSerialization(controlLoopFilePath);
+        }
+
+        assertTrue(atLeastOneControlLoopTested);
+        return toscaServiceTemplate;
+    }
+
+    private static ToscaServiceTemplate testControlLoopYamlSerialization(String controlLoopFilePath) {
+        try {
+            String controlLoopString = ResourceUtils.getResourceAsString(controlLoopFilePath);
+            if (controlLoopString == null) {
+                throw new FileNotFoundException(controlLoopFilePath);
+            }
+
+            ToscaServiceTemplate serviceTemplate = yamlTranslator.fromYaml(
+                            controlLoopString, ToscaServiceTemplate.class);
+            return serviceTemplate;
+        } catch (FileNotFoundException e) {
+            LOGGER.error("cannot find YAML file", controlLoopFilePath);
+            throw new IllegalArgumentException(e);
+        }
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestSimulationRestController.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestSimulationRestController.java
new file mode 100644
index 000000000..472b4beee
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/rest/TestSimulationRestController.java
@@ -0,0 +1,186 @@
+/*-
+ * ============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.rest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.core.GenericType;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+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.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantState;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
+import org.onap.policy.clamp.controlloop.models.messages.rest.TypedSimpleResponse;
+import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ControlLoopUpdateListener;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationHandler;
+import org.onap.policy.clamp.controlloop.participant.simulator.simulation.SimulationProvider;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
+
+/**
+ * Class to perform unit test of {@link TestSimulationRestController}.
+ */
+public class TestSimulationRestController extends CommonParticipantRestServer {
+
+    private static ControlLoopUpdateListener clUpdateListener;
+    private static final String PARTICIPANTS_ENDPOINT = "participants";
+    private static final String ELEMENTS_ENDPOINT = "elements";
+    private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
+    private static final String TOPIC = "my-topic";
+    static CommonTestData commonTestData = new CommonTestData();
+
+    /**
+     * Setup before class.
+     *
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        CommonParticipantRestServer.setUpBeforeClass();
+        clUpdateListener = new ControlLoopUpdateListener(
+                SimulationHandler.getInstance()
+                .getSimulationProvider()
+                .getIntermediaryApi()
+                .getParticipantHandler());
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg =
+                TestListenerUtils.createControlLoopUpdateMsg();
+        participantControlLoopUpdateMsg.getControlLoop().setOrderedState(ControlLoopOrderedState.PASSIVE);
+        clUpdateListener.onTopicEvent(INFRA, TOPIC, null, participantControlLoopUpdateMsg);
+    }
+
+    @AfterClass
+    public static void teardownAfterClass() {
+        CommonParticipantRestServer.teardownAfterClass();
+    }
+
+    @Test
+    public void testSwagger() throws Exception {
+        super.testSwagger(ELEMENTS_ENDPOINT);
+    }
+
+    @Test
+    public void testQuery_Unauthorized() throws Exception {
+        Invocation.Builder invocationBuilder = super.sendNoAuthRequest(ELEMENTS_ENDPOINT);
+        Response rawresp = invocationBuilder.buildGet().invoke();
+        assertEquals(Response.Status.UNAUTHORIZED.getStatusCode(), rawresp.getStatus());
+    }
+
+    @Test
+    public void testQueryParticipants() throws Exception {
+        Participant participant = new Participant();
+        ToscaConceptIdentifier participantId = CommonTestData.getParticipantId();
+        participant.setDefinition(participantId);
+        participant.setName(participantId.getName());
+        participant.setVersion(participantId.getVersion());
+
+        // GET REST call for querying the participants
+        Invocation.Builder invocationBuilder =
+            super.sendRequest(PARTICIPANTS_ENDPOINT + "/" + participant.getKey().getName()
+                    + "/" + participant.getVersion());
+
+        Response rawresp = invocationBuilder.buildGet().invoke();
+        assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+        List<Participant> returnValue = rawresp.readEntity(new GenericType<List<Participant>>() {});
+        assertNotNull(returnValue);
+        assertThat(returnValue).hasSize(1);
+        // Verify the result of GET participants with what is stored
+        assertEquals(participant.getDefinition(), returnValue.get(0).getDefinition());
+    }
+
+    @Test
+    public void testQueryControlLoopElements() throws Exception {
+        // GET REST call for querying the controlLoop elements
+        Invocation.Builder invocationBuilder = super.sendRequest(ELEMENTS_ENDPOINT + "/"
+                                                        + "PMSHInstance0" + "/" + "1.0.0");
+
+        Response rawresp = invocationBuilder.buildGet().invoke();
+        assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+        Map<UUID, ControlLoopElement> returnValue =
+                        rawresp.readEntity(new GenericType<Map<UUID, ControlLoopElement>>() {});
+        assertNotNull(returnValue);
+        // Verify the result of GET controlloop elements with what is stored
+        assertThat(returnValue).hasSize(1);
+        returnValue.values().forEach(element -> assertEquals("org.onap.PM_CDS_Blueprint",
+                                element.getDefinition().getName()));
+    }
+
+    @Test
+    public void testUpdateParticipant() throws Exception {
+        SimulationProvider provider = SimulationHandler.getInstance().getSimulationProvider();
+        List<Participant> participants = provider.getParticipants(CommonTestData.getParticipantId().getName(),
+                CommonTestData.getParticipantId().getVersion());
+        assertEquals(ParticipantState.UNKNOWN, participants.get(0).getParticipantState());
+        // Change the state of the participant to PASSIVE from UNKNOWN
+        participants.get(0).setParticipantState(ParticipantState.PASSIVE);
+        Entity<Participant> entParticipant = Entity.entity(participants.get(0), MediaType.APPLICATION_JSON);
+
+        // PUT REST call for updating Participant
+        Invocation.Builder invocationBuilder = sendRequest(PARTICIPANTS_ENDPOINT);
+        Response rawresp = invocationBuilder.put(entParticipant);
+        TypedSimpleResponse<Participant> resp = rawresp.readEntity(TypedSimpleResponse.class);
+        assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+        assertNotNull(resp.getResponse());
+        // Verify the response and state returned by PUT REST call for updating participants
+        assertThat(resp.toString()).contains("definition={name=org.onap.PM_CDS_Blueprint, version=1.0.0}");
+        assertThat(resp.toString()).contains("participantState=PASSIVE");
+    }
+
+    @Test
+    public void testUpdateControlLoopElement() throws Exception {
+        ControlLoop controlLoop = TestListenerUtils.createControlLoop();
+        SimulationProvider provider = SimulationHandler.getInstance().getSimulationProvider();
+        Map<UUID, ControlLoopElement> controlLoopElements = provider.getControlLoopElements(
+                controlLoop.getDefinition().getName(), controlLoop.getDefinition().getVersion());
+
+        for (Map.Entry<UUID, ControlLoopElement> clElement : controlLoopElements.entrySet()) {
+            // Check the initial state on the ControlLoopElement, which is UNINITIALISED
+            assertEquals(ControlLoopOrderedState.UNINITIALISED, clElement.getValue().getOrderedState());
+            // Change the state of the ControlLoopElement to PASSIVE from UNINITIALISED
+            clElement.getValue().setOrderedState(ControlLoopOrderedState.PASSIVE);
+            Entity<ControlLoopElement> entClElement = Entity.entity(clElement.getValue(), MediaType.APPLICATION_JSON);
+
+            // PUT REST call for updating ControlLoopElement
+            Invocation.Builder invocationBuilder = sendRequest(ELEMENTS_ENDPOINT);
+            Response rawresp = invocationBuilder.put(entClElement);
+            TypedSimpleResponse<ControlLoopElement> resp = rawresp.readEntity(TypedSimpleResponse.class);
+            assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+            assertNotNull(resp.getResponse());
+            // Verify the response and state returned by PUT REST call for updating participants
+            assertThat(resp.toString()).contains("definition={name=org.onap.PM_CDS_Blueprint, version=1.0.0}");
+            assertThat(resp.toString()).contains("orderedState=PASSIVE");
+        }
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestMain.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestMain.java
new file mode 100644
index 000000000..5a5ad8931
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestMain.java
@@ -0,0 +1,117 @@
+/*-
+ * ============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.startstop;
+
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.common.utils.resources.MessageConstants;
+
+/**
+ * Class to perform unit test of {@link Main}}.
+ */
+public class TestMain {
+
+    @Test
+    public void testMain_Help() {
+        final String[] configParameters = {"-h"};
+        Main main = new Main(configParameters);
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_Version() {
+        final String[] configParameters = {"-v"};
+        Main main = new Main(configParameters);
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_Valid() {
+        final String[] configParameters = {"-c", "src/test/resources/parameters/TestParameters.json"};
+        Main main = new Main(configParameters);
+        assertTrue(main.isRunning());
+
+        assertThatCode(() -> main.shutdown()).doesNotThrowAnyException();
+
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_NoParameter() {
+        assertThatConfigParameterThrownException(new String[] {});
+    }
+
+    @Test
+    public void testMain_FilePathNotDefined() {
+        assertThatConfigParameterThrownException(new String[] {"-c"});
+    }
+
+    @Test
+    public void testMain_TooManyCommand() {
+        assertThatConfigParameterThrownException(new String[] {"-h", "d"});
+    }
+
+    @Test
+    public void testMain_WrongParameter() {
+        assertThatConfigParameterThrownException(new String[] {"-d"});
+    }
+
+    private void assertThatConfigParameterThrownException(final String[] configParameters) {
+        assertThatThrownBy(() -> Main.main(configParameters)).isInstanceOf(ControlLoopRuntimeException.class)
+                .hasMessage(String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP));
+    }
+
+    @Test
+    public void testParticipant_NoFileWithThisName() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/NoFileWithThisName.json");
+    }
+
+    @Test
+    public void testParticipant_NotValidFile() {
+        assertThatConfigFileThrownException("src/test/resources/parameters");
+    }
+
+    @Test
+    public void testParticipant_FileEmpty() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/EmptyParameters.json");
+    }
+
+    @Test
+    public void testParticipant_NoParameters() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/NoParameters.json");
+    }
+
+    @Test
+    public void testParticipant_InvalidParameters() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/InvalidParameters.json");
+    }
+
+    private void assertThatConfigFileThrownException(final String configFilePath) {
+        final String[] configParameters = new String[] {"-c", configFilePath};
+        assertThatThrownBy(() -> new Main(configParameters)).isInstanceOf(ControlLoopRuntimeException.class)
+                .hasMessage(String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP));
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestParticipantSimulatorActivator.java b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestParticipantSimulatorActivator.java
new file mode 100644
index 000000000..c695d5f24
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/java/org/onap/policy/clamp/controlloop/participant/simulator/main/startstop/TestParticipantSimulatorActivator.java
@@ -0,0 +1,89 @@
+/*-
+ * ============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.startstop;
+
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameterHandler;
+import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
+
+/**
+ * Class to perform unit test of {@link ParticipantActivator}}.
+ */
+public class TestParticipantSimulatorActivator {
+
+    private static ParticipantSimulatorActivator activator;
+
+    /**
+     * Initializes an activator.
+     *
+     * @throws Exception if an error occurs
+     */
+    @BeforeClass
+    public static void setUp() throws Exception {
+        final String[] participantConfigParameters = { "-c", "src/test/resources/parameters/TestParameters.json"};
+        final ParticipantSimulatorCommandLineArguments arguments =
+                new ParticipantSimulatorCommandLineArguments(participantConfigParameters);
+        final ParticipantSimulatorParameters parGroup =
+                new ParticipantSimulatorParameterHandler().getParameters(arguments);
+        activator = new ParticipantSimulatorActivator(parGroup);
+    }
+
+    /**
+     * Method for cleanup after each test.
+     *
+     * @throws Exception if an error occurs
+     */
+    @AfterClass
+    public static void teardown() throws Exception {
+        // shut down activator
+        if (activator != null && activator.isAlive()) {
+            activator.shutdown();
+        }
+    }
+
+    @Test
+    public void testParticipantActivator() {
+        activator.start();
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameters().isValid());
+        assertEquals(CommonTestData.PARTICIPANT_GROUP_NAME, activator.getParameters().getName());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.start());
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameters().isValid());
+
+        activator.shutdown();
+        assertFalse(activator.isAlive());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.shutdown());
+        assertFalse(activator.isAlive());
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/EmptyParameters.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/EmptyParameters.json
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/EmptyParameters.json
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/InvalidParameters.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/InvalidParameters.json
new file mode 100644
index 000000000..1035ccb67
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/InvalidParameters.json
@@ -0,0 +1,3 @@
+{
+  "name": "
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/NoParameters.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/NoParameters.json
new file mode 100644
index 000000000..7a73a41bf
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/NoParameters.json
@@ -0,0 +1,2 @@
+{
+}
\ No newline at end of file
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParameters.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParameters.json
new file mode 100644
index 000000000..8c594044b
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParameters.json
@@ -0,0 +1,61 @@
+{
+    "name": "ControlLoopParticipantGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34",
+        "https": false,
+        "aaf": false
+    },
+    "intermediaryParameters": {
+        "name": "Participant parameters",
+        "reportingTimeInterval": 120000,
+        "description": "Participant Description",
+        "participantId": {
+            "name": "org.onap.PM_CDS_Blueprint",
+            "version": "1.0.0"
+        },
+        "participantType": {
+            "name": "org.onap.PM_CDS_Blueprint",
+            "version": "1.0.0"
+        },
+        "clampControlLoopTopics": {
+            "topicSources": [
+                {
+                    "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap",
+                    "fetchTimeout": 15000
+                }
+            ],
+            "topicSinks": [
+                {
+                    "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap"
+                },
+                {
+                    "topic": "POLICY-NOTIFICATION",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap"
+                }
+            ]
+        }
+    },
+    "databaseProviderParameters": {
+        "name": "PolicyProviderParameterGroup",
+        "implementation": "org.onap.policy.models.provider.impl.DatabasePolicyModelsProviderImpl",
+        "databaseDriver": "org.h2.Driver",
+        "databaseUrl": "jdbc:h2:mem:testdb",
+        "databaseUser": "policy",
+        "databasePassword": "P01icY",
+        "persistenceUnit": "ToscaConceptTest"
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParametersStd.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParametersStd.json
new file mode 100644
index 000000000..0295a8f91
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/TestParametersStd.json
@@ -0,0 +1,61 @@
+{
+    "name": "ControlLoopParticipantGroup",
+     "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": ${port},
+        "userName": "healthcheck",
+        "password": "zb!XztG34",
+        "https": false,
+        "aaf": false
+    },
+    "intermediaryParameters": {
+        "name": "Participant parameters",
+        "reportingTimeInterval": 120000,
+        "description": "Participant Description",
+        "participantId": {
+            "name": "org.onap.PM_CDS_Blueprint",
+            "version": "1.0.0"
+        },
+        "participantType": {
+            "name": "org.onap.PM_CDS_Blueprint",
+            "version": "1.0.0"
+        },
+        "clampControlLoopTopics": {
+            "topicSources": [
+                {
+                    "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap",
+                    "fetchTimeout": 15000
+                }
+            ],
+            "topicSinks": [
+                {
+                    "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap"
+                },
+                {
+                    "topic": "POLICY-NOTIFICATION",
+                    "servers": [
+                        "localhost"
+                    ],
+                    "topicCommInfrastructure": "dmaap"
+                }
+            ]
+        }
+    },
+    "databaseProviderParameters": {
+        "name": "PolicyProviderParameterGroup",
+        "implementation": "org.onap.policy.models.provider.impl.DatabasePolicyModelsProviderImpl",
+        "databaseDriver": "org.h2.Driver",
+        "databaseUrl": "jdbc:h2:mem:testdb",
+        "databaseUser": "policy",
+        "databasePassword": "P01icY",
+        "persistenceUnit": "ToscaConceptTest"
+    }
+}
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/Unreadable.json b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/Unreadable.json
new file mode 100644
index 000000000..f11bd8c95
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/parameters/Unreadable.json
@@ -0,0 +1,81 @@
+{
+    "name": "ControlLoopRuntimeGroup",
+    "restServerParameters": {
+        "host": "0.0.0.0",
+        "port": 6969,
+        "userName": "healthcheck",
+        "password": "zb!XztG34",
+        "https": false,
+        "aaf": false
+    },
+    "participantParameters": {
+        "heartBeatMs": 120000,
+        "updateParameters": {
+            "maxRetryCount": 1,
+            "maxWaitMs": 30000
+        },
+        "stateChangeParameters": {
+            "maxRetryCount": 1,
+            "maxWaitMs": 30000
+        }
+    },
+    "databaseProviderParameters": {
+        "name": "PolicyProviderParameterGroup",
+        "implementation": "org.onap.policy.models.provider.impl.DatabasePolicyModelsProviderImpl",
+        "databaseDriver": "org.h2.Driver",
+        "databaseUrl": "jdbc:h2:mem:testdb",
+        "databaseUser": "policy",
+        "databasePassword": "P01icY",
+        "persistenceUnit": "ToscaConceptTest"
+    },
+    "topicParameterGroup": {
+        "topicSources": [
+            {
+                "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                "servers": [
+                    "localhost"
+                ],
+                "topicCommInfrastructure": "dmaap",
+                "fetchTimeout": 15000
+            }
+        ],
+        "topicSinks": [
+            {
+                "topic": "POLICY-CLRUNTIME-PARTICIPANT",
+                "servers": [
+                    "localhost"
+                ],
+                "topicCommInfrastructure": "dmaap"
+            },
+            {
+                "topic": "POLICY-NOTIFICATION",
+                "servers": [
+                    "localhost"
+                ],
+                "topicCommInfrastructure": "dmaap"
+            }
+        ]
+    },
+    "healthCheckRestClientParameters": [
+        {
+            "clientName": "api",
+            "hostname": "policy-api",
+            "port": 6969,
+            "userName": "healthcheck",
+            "password": "zb!XztG34",
+            "useHttps": true,
+            "basePath": "policy/api/v1/healthcheck"
+        },
+        {
+            "clientName": "distribution",
+            "hostname": "policy-distribution",
+            "port": 6969,
+            "userName": "healthcheck",
+            "password": "zb!XztG34",
+            "useHttps": true,
+            "basePath": "healthcheck"
+        }
+    ]
+}
+
+
diff --git a/participant/participant-impl/participant-impl-simulator/src/test/resources/rest/servicetemplates/pm_control_loop_tosca.yaml b/participant/participant-impl/participant-impl-simulator/src/test/resources/rest/servicetemplates/pm_control_loop_tosca.yaml
new file mode 100644
index 000000000..99dd0ed68
--- /dev/null
+++ b/participant/participant-impl/participant-impl-simulator/src/test/resources/rest/servicetemplates/pm_control_loop_tosca.yaml
@@ -0,0 +1,452 @@
+tosca_definitions_version: tosca_simple_yaml_1_3
+capability_types:
+  org.onap.EventProducer:
+    properties:
+      carrier_protocol_type:
+        type: string
+        required: true
+        constraints:
+        - valid_values:
+          - DMAAP_message_router
+          - SOMETHING_ELSE
+          - REST
+      data_format:
+        type: string
+        required: true
+        constraints:
+        - valid_values:
+          - JSON
+          - YAML
+          - JMS
+      event_format:
+        type: string
+        required: true
+      event_format_version:
+        type: string
+        required: false
+      config_keys:
+        type: list
+        required: false
+        entry_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - all valid values should be added here
+            - if not specified, events of any config key may be generated
+            - 'examples for config_key: ves-measurement, ves-syslog, tca_handle_out,
+              etc.'
+    version: 0.0.1
+    derived_from: tosca.capabilities.Root
+  org.onap.EventConsumer:
+    properties:
+      responding_capability:
+        type: string
+        required: false
+      carrier_protocol_type:
+        type: string
+        required: true
+        constraints:
+        - valid_values:
+          - DMAAP_message_router
+          - SOMETHING_ELSE
+          - REST
+      data_format:
+        type: string
+        required: true
+        constraints:
+        - valid_values:
+          - JSON
+          - YAML
+          - JMS
+          - all valid values should be added here
+      event_format:
+        type: string
+        description: 'examples for event_format: Ves_specification, LinkUp, VnfConfigured,
+          etc.'
+        required: true
+      event_format_version:
+        type: string
+        description: 'examples for event_format_version: 5.28.4, 7.30.1, etc.'
+        required: false
+      config_keys:
+        type: list
+        required: false
+        entry_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - all valid values should be added here
+            - if not specified, events of any config key may be generated
+            - 'examples for config_key: ves-measurement, ves-syslog, tca_handle_out,
+              etc.'
+    version: 0.0.1
+    derived_from: tosca.capabilities.Root
+node_types:
+  org.onap.DynamicConfig:
+    properties:
+      application_name:
+        type: string
+        description: Value used to tie the config to an application ? should we be
+          using a relationship here instead?
+        required: true
+      application_version:
+        type: string
+        required: true
+      application_provider:
+        type: string
+        required: false
+      data_types:
+        type: object
+        required: false
+      schema:
+        type: object
+        required: false
+    version: 0.0.1
+    derived_from: tosca.nodes.Root
+  org.onap.APP:
+    properties:
+      application_name:
+        type: string
+        description: Human readable name for the application Product
+        required: false
+      provider:
+        type: string
+        description: Provider of the application and of the descriptor
+        required: true
+      application_version:
+        type: string
+        description: Software version of the application
+        required: true
+      blueprint_id:
+        type: string
+        description: A reference to the app blueprint
+        required: false
+      monitoring_policy:
+        type: string
+        description: A reference to the monitoring policy
+        required: false
+    requirements:
+    - receive:
+        capability: org.onap.EventProducer
+        relationship: org.onap.PropagateEvent
+        occurrences:
+        - 0.0
+        - UNBOUNDED
+        version: 0.0.0
+    - send:
+        capability: org.onap.EventConsumer
+        relationship: org.onap.PropagateEvent
+        occurrences:
+        - 0.0
+        - UNBOUNDED
+        version: 0.0.0
+    version: 0.0.1
+    derived_from: tosca.nodes.Root
+  org.onap.EventRelay:
+    properties:
+      event_format:
+        type: string
+        description: 'examples for event_format: Ves_specification, etc.'
+        required: true
+      event_format_version:
+        type: string
+        description: 'examples for event_format_version: 5.28.4, 7.30.1, etc.'
+        required: true
+      config_keys:
+        type: list
+        required: false
+        entry_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - all valid values should be added here
+            - if not specified, events of any config key is relayed
+            - 'examples for config_key: ves-measurement, ves-syslog, tca_handle_out,
+              etc.'
+      supported_carrier_protocols:
+        type: map
+        description: 'A map describing supported carrier protocols and translations.
+          The tuples define what protocol combinations are supported on the producer
+          and consumer side: e.g. { REST: REST, DMAAP: REST, DMAAP: DMAAP}'
+        required: true
+        key_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - DMAAP_message_router
+            - SOMETHING_ELSE
+            - REST
+            - all valid values should be added here
+        entry_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - DMAAP_message_router
+            - SOMETHING_ELSE
+            - REST
+            - all valid values should be added here
+      supported_data_formats:
+        type: map
+        description: 'Is a map describing supported data formats and translation.
+          The tuples define what protocol combinations are supported on the producer
+          and consumer side: e.g. { JSON: JSON, JMS: JSON, YAML:YAML }'
+        required: true
+        key_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - JSON
+            - JMS
+            - YAML
+            - etc
+            - all valid values should be added here
+        entry_schema:
+          type: string
+          constraints:
+          - valid_values:
+            - JSON
+            - JMS
+            - YAML
+            - etc
+            - all valid values should be added here
+    requirements:
+    - receive:
+        capability: org.onap.EventProducer
+        relationship: org.onap.PropagateEvent
+        occurrences:
+        - 0.0
+        - UNBOUNDED
+        version: 0.0.0
+    - send:
+        capability: org.onap.EventConsumer
+        relationship: org.onap.PropagateEvent
+        occurrences:
+        - 0.0
+        - UNBOUNDED
+        version: 0.0.0
+    version: 0.0.1
+    derived_from: tosca.nodes.Root
+relationship_types:
+  org.onap.PropagateEvent:
+    properties:
+      config_keys:
+        type: list
+        description: The relationship type used on requirements to org.onap.EventProducer
+          and org.onap.EventConsumer capabilities. Filters events by specific config_keys
+          to be transferred by this relationship. That is, any event with a specific
+          config_key found in the list is transferred. If list is not defined or is
+          empty, events with all config_keys are transferred.
+        required: false
+        entry_schema:
+          type: string
+    version: 0.0.1
+    derived_from: tosca.relationships.Root
+topology_template:
+  inputs:
+    pm_subscription_topic:
+      type: string
+    pm_subscription_response_topic:
+      type: string
+    pm_subscription_handler_blueprint_id:
+      type: string
+    pm_subscription_operational_policy_id:
+      type: string
+    pm_subscription_cds_blueprint_id:
+      type: string
+    enable_tls:
+      type: string
+  node_templates:
+    org.onap.PM_Subscription_Handler:
+      type: org.onap.APP
+      properties:
+        application_name: PM Subscription Handler
+        provider: Ericsson
+        application_version: 1.0.0
+        artifact_id:
+          get_input: pm_subscription_handler_blueprint_id
+          description: Is this a reference to the DCAE Cloudify Blueprint that is
+            already stored(or will be stored before CL configuration & instatiation)
+            in DCAE Inventory?
+        artifact_config:
+          enable_tls:
+            get_input: enable_tls
+          pmsh_publish_topic_name:
+            get_input: pm_subscription_topic
+      capabilities:
+        pm-subscription-event-publisher:
+          properties:
+            carrier_protocol_type: DMAAP_message_router
+            data_format: JSON
+            event_format: pm-subscription-event-format
+            event_format_version: 1.0.0
+          attributes:
+            type: org.onap.EventProducer
+          occurrences:
+          - 0.0
+          - UNBOUNDED
+          version: 0.0.0
+        pm-subscription-event-receiver:
+          properties:
+            carrier_protocol_type: DMAAP_message_router
+            data_format: JSON
+            event_format: pm-subscription-event-response-format
+            event_format_version: 1.0.0
+            relationships:
+            - type: tosca.relationships.DependsOn
+            - description: any ideas on a better realtionship ? or is it better to
+                just use the root realtionship ?
+            - target: org.onap.PM_Monitoring_Policy
+          attributes:
+            type: org.onap.EventConsumer
+          occurrences:
+          - 0.0
+          - UNBOUNDED
+          version: 0.0.0
+      version: 0.0.0
+    org.onap.PM_Monitoring_Policy:
+      type: org.onap.DynamicConfig
+      properties:
+        application_name: PM Subscription Handler
+        application_version: 1.0.0
+        provider: Ericsson
+        data_types:
+          measurementType:
+            type: string
+          DN:
+            type: string
+          nfFilter:
+            properties:
+              nfNames:
+                type: list
+                entry_schema: string
+              modelInvariantIDs:
+                type: list
+                entry_schema:
+                  type: string
+              modelVersionIDs:
+                type: list
+                entry_schema:
+                  type: string
+          measurementGroup:
+            properties:
+              masurementTypes:
+                type: list
+                entry_schema:
+                  type: measurementType
+              managedObjectDNsBasic:
+                type: list
+                entry_schema:
+                  type: DN
+        schema:
+          subscription:
+            subscriptionName:
+              type: string
+              required: true
+            administrativeState:
+              type: string
+              required: true
+            filebasedGP:
+              type: integer
+              required: true
+            fileLocation:
+              type: string
+              required: true
+            nfFilter:
+              type: nfFilter
+            measurementGroups:
+              type: list
+              entry_schema:
+                type: measurementGroup
+      version: 0.0.0
+      description: Should I be showing a dependency between PM Subscription Handler
+        and the PM Monitoring Policy
+    org.onap.PM_Policy:
+      type: org.onap.APP
+      properties:
+        application_name: PM Subscription Operational Policy
+        provider: Ericsson
+        application_version: 1.0.0
+        artifact_id:
+          get_input: pm_subscription_operational_policy_id
+        artifact_config: NOT_DEFINED
+      requirements:
+      - receive_0:
+          capability: pm-subscription-event-publisher
+          node: org.onap.PM_Subscription_Handler
+          relationship: NOT_DEFINED
+          properties:
+            config_keys:
+            - topic_name:
+                get_input: pm_subscription_topic
+          version: 0.0.0
+      - send_0:
+          capability: cds-rest-receive
+          node: org.onap.CDS
+          version: 0.0.0
+      - receive_1:
+          capability: cds-rest-response
+          node: org.onap.CDS
+          version: 0.0.0
+      - send_1:
+          capability: pm-subscription-event-receiver
+          node: org.onap.PM_Subscription_Handler
+          relationship: NOT_DEFINED
+          properties:
+            config_keys:
+            - topic_name:
+                get_input: pm_subscription_response_topic
+          version: 0.0.0
+      capabilities:
+        pm-subscription-response-event-publisher:
+          properties:
+            type: org.onap.EventProducer
+            carrier_protocol_type: DMAAP_message_router
+            data_format: JSON
+            event_format: pm-subscription-event-response-format
+            event_format_version: 1.0.0
+          occurrences:
+          - 0.0
+          - UNBOUNDED
+          version: 0.0.0
+      version: 0.0.0
+    org.onap.PM_CDS_Blueprint:
+      type: org.onap.APP
+      properties:
+        application_name: PM Subscription CDS Blueprint
+        provider: Ericsson
+        application_version: 1.0.0
+        artifact_id:
+          get_input: pm_subscription_cds_blueprint_id
+      capabilities:
+        cds-rest-receive:
+          properties:
+            type: org.onap.EventConsumer
+            protocol_type: REST
+            data_format: JSON
+            event_format: cds_action_format
+            event_format_version: 1.0.0
+            responding_capability: cds-rest-response
+          occurrences:
+          - 0.0
+          - UNBOUNDED
+          version: 0.0.0
+        cds-rest-response:
+          properties:
+            type: org.onap.EventProducer
+            protocol_type: REST
+            data_format: JSON
+            event_format: cds_action_response_format
+            event_format_version: 1.0.0
+          occurrences:
+          - 0.0
+          version: 0.0.0
+      version: 1.0.0
+    org.onap.controlloop0:
+      type: org.onap.APP
+      properties:
+        application_name: Test Control Loop
+        provider: Ericsson
+        application_version: 1.0.0
+        status: NOT_DEPLOYED
+      version: 0.0.0
+version: 0.0.0