Add VFC Actor

Adding first cut at VFC Actor.

Issue-ID: POLICY-2386
Change-Id: I4749ed3f350f01d05026057ffe4149f3843d8475
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
Signed-off-by: Peyton Puckett <peyton.puckett@att.com>

13 files changed, 1121 insertions, 52 deletions

diff --git a/models-interactions/model-actors/actor.vfc/pom.xml b/models-interactions/model-actors/actor.vfc/pom.xml
index 7f6cc6e9e..bf38df57a 100644
--- a/models-interactions/model-actors/actor.vfc/pom.xml
+++ b/models-interactions/model-actors/actor.vfc/pom.xml
@@ -18,58 +18,87 @@
   ============LICENSE_END=========================================================
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-   <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
-    <artifactId>model-actors</artifactId>
-    <version>2.2.1-SNAPSHOT</version>
-  </parent>
+    <parent>
+        <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
+        <artifactId>model-actors</artifactId>
+        <version>2.2.1-SNAPSHOT</version>
+    </parent>
 
-  <artifactId>actor.vfc</artifactId>
+    <artifactId>actor.vfc</artifactId>
 
-  <dependencies>
-    <dependency>
-     <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
-      <artifactId>actorServiceProvider</artifactId>
-      <version>${project.version}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
-      <artifactId>vfc</artifactId>
-      <version>${project.version}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
-      <artifactId>events</artifactId>
-      <version>${project.version}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
-      <artifactId>aai</artifactId>
-      <version>${project.version}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.onap.policy.common</groupId>
-      <artifactId>policy-endpoints</artifactId>
-      <version>${policy.common.version}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.onap.policy.models.policy-models-interactions</groupId>
-      <artifactId>simulators</artifactId>
-      <version>${project.version}</version>
-      <scope>test</scope>
-    </dependency>
-  </dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
+            <artifactId>actorServiceProvider</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
+            <artifactId>aai</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
+            <artifactId>events</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-impl</groupId>
+            <artifactId>vfc</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
+            <artifactId>actor.aai</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>policy-endpoints</artifactId>
+            <version>${policy.common.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions.model-actors</groupId>
+            <artifactId>actor.test</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.models.policy-models-interactions</groupId>
+            <artifactId>simulators</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-api-mockito2</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 </project>
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/Restart.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/Restart.java
new file mode 100644
index 000000000..2c5cf8eda
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/Restart.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import java.util.concurrent.CompletableFuture;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.core.MediaType;
+import org.apache.commons.lang3.tuple.Pair;
+import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
+import org.onap.policy.vfc.VfcRequest;
+
+public class Restart extends VfcOperation {
+    public static final String NAME = "VF Module Create";
+
+    public Restart(ControlLoopOperationParams params, HttpConfig config) {
+        super(params, config);
+    }
+
+    @Override
+    protected CompletableFuture<OperationOutcome> startOperationAsync(int attempt, OperationOutcome outcome) {
+
+        // starting a whole new attempt - reset the count
+        resetGetCount();
+
+        Pair<String, VfcRequest> pair = makeRequest();
+        Entity<VfcRequest> entity = Entity.entity(pair.getRight(), MediaType.APPLICATION_JSON);
+        String path = getPath() + pair.getLeft();
+        String url = getClient().getBaseUrl() + path;
+
+        return handleResponse(outcome, url, callback -> getClient().post(callback, path, entity, null));
+    }
+
+    /**
+     * Makes a request.
+     *
+     * @return a pair containing the request URL and the new request
+     */
+    protected Pair<String, VfcRequest> makeRequest() {
+
+        VfcRequest request = super.constructVfcRequest();
+        String requestUrl = "/ns/" + request.getNsInstanceId() + "/heal";
+        return Pair.of(requestUrl, request);
+    }
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcActorServiceProvider.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcActorServiceProvider.java
index 8d560ef3c..b7a41ddf0 100644
--- a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcActorServiceProvider.java
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcActorServiceProvider.java
@@ -37,6 +37,8 @@ import org.onap.policy.vfc.VfcRequest;
 public class VfcActorServiceProvider extends ActorImpl {
     private static final String GENERIC_VNF_ID = "generic-vnf.vnf-id";
 
+    // TODO old code: remove lines down to **HERE**
+
     // Strings for VFC Actor
     private static final String VFC_ACTOR = "VFC";
 
@@ -50,10 +52,19 @@ public class VfcActorServiceProvider extends ActorImpl {
     private static final ImmutableMap<String, List<String>> targets =
             new ImmutableMap.Builder<String, List<String>>().put(RECIPE_RESTART, ImmutableList.of(TARGET_VM)).build();
 
+    // **HERE**
+
+    /**
+     * Constructor.
+     */
     public VfcActorServiceProvider() {
         super(VFC_ACTOR);
+
+        addOperator(new VfcOperator(VFC_ACTOR, Restart.NAME, Restart::new));
     }
 
+    // TODO old code: remove lines down to **HERE**
+
     @Override
     public String actor() {
         return VFC_ACTOR;
@@ -90,7 +101,7 @@ public class VfcActorServiceProvider extends ActorImpl {
         VfcRequest request = new VfcRequest();
         String serviceInstance = onset.getAai().get("service-instance.service-instance-id");
         if (serviceInstance == null || "".equals(serviceInstance)) {
-            // get service isntance from AaiCqResponse
+            // get service instance from AaiCqResponse
             if (aaiCqResponse == null) {
                 return null;
             }
@@ -120,4 +131,7 @@ public class VfcActorServiceProvider extends ActorImpl {
         }
         return request;
     }
+
+    // **HERE**
+
 }
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcConfig.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcConfig.java
new file mode 100644
index 000000000..4b5088a3a
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcConfig.java
@@ -0,0 +1,63 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import java.util.concurrent.Executor;
+import lombok.Getter;
+import org.onap.policy.common.endpoints.http.client.HttpClient;
+import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
+
+@Getter
+public class VfcConfig extends HttpConfig {
+
+    /**
+     * Path to use for the "get" request. A trailing "/" is added, if it is missing.
+     */
+    private String pathGet;
+
+    /**
+     * Maximum number of "get" requests permitted, after the initial request, to retrieve
+     * the response.
+     */
+    private int maxGets;
+
+    /**
+     * Time, in seconds, to wait between issuing "get" requests.
+     */
+    private int waitSecGet;
+
+    /**
+     * Constructor.
+     *
+     * @param blockingExecutor executor to be used for tasks that may perform blocking I/O
+     * @param params operator parameters
+     * @param clientFactory factory from which to obtain the {@link HttpClient}
+     */
+    public VfcConfig(Executor blockingExecutor, VfcParams params, HttpClientFactory clientFactory) {
+        super(blockingExecutor, params, clientFactory);
+
+        this.pathGet = params.getPathGet() + (params.getPathGet().endsWith("/") ? "" : "/");
+        this.maxGets = params.getMaxGets();
+        this.waitSecGet = params.getWaitSecGet();
+    }
+
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperation.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperation.java
new file mode 100644
index 000000000..827109d10
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperation.java
@@ -0,0 +1,245 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.function.Function;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType;
+import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
+import org.onap.policy.controlloop.actorserviceprovider.controlloop.ControlLoopEventContext;
+import org.onap.policy.controlloop.actorserviceprovider.impl.HttpOperation;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
+import org.onap.policy.controlloop.policy.PolicyResult;
+import org.onap.policy.vfc.VfcHealActionVmInfo;
+import org.onap.policy.vfc.VfcHealAdditionalParams;
+import org.onap.policy.vfc.VfcHealRequest;
+import org.onap.policy.vfc.VfcRequest;
+import org.onap.policy.vfc.VfcResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class VfcOperation extends HttpOperation<VfcResponse> {
+    private static final Logger logger = LoggerFactory.getLogger(VfcOperation.class);
+
+    public static final String FAILED = "FAILED";
+    public static final String COMPLETE = "COMPLETE";
+    public static final int VFC_RESPONSE_CODE = 999;
+    public static final String GENERIC_VNF_ID = "generic-vnf.vnf-id";
+
+    public static final String REQ_PARAM_NM = "requestParameters";
+    public static final String CONFIG_PARAM_NM = "configurationParameters";
+
+    private final VfcConfig config;
+
+    /**
+     * Number of "get" requests issued so far, on the current operation attempt.
+     */
+    @Getter
+    private int getCount;
+
+    /**
+     * Constructs the object.
+     *
+     * @param params operation parameters
+     * @param config configuration for this operation
+     */
+    public VfcOperation(ControlLoopOperationParams params, HttpConfig config) {
+        super(params, config, VfcResponse.class);
+        this.config = (VfcConfig) config;
+    }
+
+    /**
+     * Subclasses should invoke this before issuing their first HTTP request.
+     */
+    protected void resetGetCount() {
+        getCount = 0;
+    }
+
+    /**
+     * Starts the GUARD.
+     */
+    @Override
+    protected CompletableFuture<OperationOutcome> startPreprocessorAsync() {
+        return startGuardAsync();
+    }
+
+    /**
+     * If the response does not indicate that the request has been completed, then sleep a
+     * bit and issue a "get".
+     */
+    @Override
+    protected CompletableFuture<OperationOutcome> postProcessResponse(OperationOutcome outcome, String url,
+            Response rawResponse, VfcResponse response) {
+        // Determine if the request has "completed" and determine if it was successful
+        if (rawResponse.getStatus() == 200) {
+            String requestState = getRequestState(response);
+            if ("finished".equalsIgnoreCase(requestState)) {
+                return CompletableFuture
+                        .completedFuture(setOutcome(outcome, PolicyResult.SUCCESS, rawResponse, response));
+            }
+
+            if ("error".equalsIgnoreCase(requestState)) {
+                return CompletableFuture
+                        .completedFuture(setOutcome(outcome, PolicyResult.FAILURE, rawResponse, response));
+            }
+        }
+
+        // still incomplete
+
+        // need a request ID with which to query
+        if (response == null || response.getJobId() == null) {
+            throw new IllegalArgumentException("missing job ID in response");
+        }
+
+        // see if the limit for the number of "gets" has been reached
+        if (getCount++ >= getMaxGets()) {
+            logger.warn("{}: execeeded 'get' limit {} for {}", getFullName(), getMaxGets(), params.getRequestId());
+            setOutcome(outcome, PolicyResult.FAILURE_TIMEOUT);
+            outcome.setMessage(VFC_RESPONSE_CODE + " " + outcome.getMessage());
+            return CompletableFuture.completedFuture(outcome);
+        }
+
+        // sleep and then perform a "get" operation
+        Function<Void, CompletableFuture<OperationOutcome>> doGet = unused -> issueGet(outcome, response);
+        return sleep(getWaitMsGet(), TimeUnit.MILLISECONDS).thenComposeAsync(doGet);
+    }
+
+    /**
+     * Issues a "get" request to see if the original request is complete yet.
+     *
+     * @param outcome outcome to be populated with the response
+     * @param response previous response
+     * @return a future that can be used to cancel the "get" request or await its response
+     */
+    private CompletableFuture<OperationOutcome> issueGet(OperationOutcome outcome, VfcResponse response) {
+        String path = getPathGet() + response.getJobId();
+        String url = getClient().getBaseUrl() + path;
+
+        logger.debug("{}: 'get' count {} for {}", getFullName(), getCount, params.getRequestId());
+
+        logMessage(EventType.OUT, CommInfrastructure.REST, url, null);
+
+        return handleResponse(outcome, url, callback -> getClient().get(callback, path, null));
+    }
+
+    /**
+     * Gets the request state of a response.
+     *
+     * @param response response from which to get the state
+     * @return the request state of the response, or {@code null} if it does not exist
+     */
+    protected String getRequestState(VfcResponse response) {
+        if (response == null || response.getResponseDescriptor() == null
+                || StringUtils.isBlank(response.getResponseDescriptor().getStatus())) {
+            return null;
+        }
+        return response.getResponseDescriptor().getStatus();
+    }
+
+    /**
+     * Treats everything as a success, so we always go into
+     * {@link #postProcessResponse(OperationOutcome, String, Response, SoResponse)}.
+     */
+    @Override
+    protected boolean isSuccess(Response rawResponse, VfcResponse response) {
+        return true;
+    }
+
+    /**
+     * Prepends the message with the http status code.
+     */
+    @Override
+    public OperationOutcome setOutcome(OperationOutcome outcome, PolicyResult result, Response rawResponse,
+            VfcResponse response) {
+
+        // set default result and message
+        setOutcome(outcome, result);
+
+        outcome.setMessage(rawResponse.getStatus() + " " + outcome.getMessage());
+        return outcome;
+    }
+
+    /**
+     * Construct VfcRequestObject from the ControlLoopOperationParams.
+     *
+     * @return request
+     */
+    protected VfcRequest constructVfcRequest() {
+        ControlLoopEventContext context = params.getContext();
+        String serviceInstance = context.getEnrichment().get("service-instance.service-instance-id");
+        String vmId = context.getEnrichment().get("vserver.vserver-id");
+        String vmName = context.getEnrichment().get("vserver.vserver-name");
+
+        if (StringUtils.isBlank(serviceInstance) || StringUtils.isBlank(vmId) || StringUtils.isBlank(vmName)) {
+            throw new IllegalArgumentException(
+                    "Cannot extract enrichment data for service instance, server id, or server name.");
+        }
+
+        VfcHealActionVmInfo vmActionInfo = new VfcHealActionVmInfo();
+        vmActionInfo.setVmid(vmId);
+        vmActionInfo.setVmname(vmName);
+
+        VfcHealAdditionalParams additionalParams = new VfcHealAdditionalParams();
+        additionalParams.setAction(getName());
+        additionalParams.setActionInfo(vmActionInfo);
+
+        VfcHealRequest healRequest = new VfcHealRequest();
+        healRequest.setVnfInstanceId(params.getContext().getEvent().getAai().get(GENERIC_VNF_ID));
+        healRequest.setCause(getName());
+        healRequest.setAdditionalParams(additionalParams);
+
+        VfcRequest request = new VfcRequest();
+        request.setHealRequest(healRequest);
+        request.setNsInstanceId(serviceInstance);
+        request.setRequestId(context.getEvent().getRequestId());
+
+        return request;
+    }
+
+    // These may be overridden by jUnit tests
+
+    /**
+     * Gets the wait time, in milliseconds, between "get" requests.
+     *
+     * @return the wait time, in milliseconds, between "get" requests
+     */
+    public long getWaitMsGet() {
+        return TimeUnit.MILLISECONDS.convert(getWaitSecGet(), TimeUnit.SECONDS);
+    }
+
+    public int getMaxGets() {
+        return config.getMaxGets();
+    }
+
+    public String getPathGet() {
+        return config.getPathGet();
+    }
+
+    public int getWaitSecGet() {
+        return config.getWaitSecGet();
+    }
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperator.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperator.java
new file mode 100644
index 000000000..4e70d6550
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcOperator.java
@@ -0,0 +1,49 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import java.util.Map;
+import org.onap.policy.common.parameters.ValidationResult;
+import org.onap.policy.controlloop.actorserviceprovider.Util;
+import org.onap.policy.controlloop.actorserviceprovider.impl.HttpOperation;
+import org.onap.policy.controlloop.actorserviceprovider.impl.HttpOperator;
+import org.onap.policy.controlloop.actorserviceprovider.impl.OperationMaker;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
+
+public class VfcOperator extends HttpOperator {
+
+    public VfcOperator(String actorName, String name,
+            @SuppressWarnings("rawtypes") OperationMaker<HttpConfig, HttpOperation> operationMaker) {
+        super(actorName, name, operationMaker);
+    }
+
+    @Override
+    protected HttpConfig makeConfiguration(Map<String, Object> parameters) {
+        VfcParams params = Util.translate(getFullName(), parameters, VfcParams.class);
+        ValidationResult result = params.validate(getFullName());
+        if (!result.isValid()) {
+            throw new ParameterValidationRuntimeException("invalid parameters", result);
+        }
+
+        return new VfcConfig(getBlockingExecutor(), params, getClientFactory());
+    }
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcParams.java b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcParams.java
new file mode 100644
index 000000000..31c2a9441
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/main/java/org/onap/policy/controlloop/actor/vfc/VfcParams.java
@@ -0,0 +1,55 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.SuperBuilder;
+import org.onap.policy.common.parameters.annotations.Min;
+import org.onap.policy.common.parameters.annotations.NotBlank;
+import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
+
+@NotNull
+@NotBlank
+@Data
+@EqualsAndHashCode(callSuper = true)
+@SuperBuilder(toBuilder = true)
+public class VfcParams extends HttpParams {
+
+    /**
+     * Path to use for the "get" request.
+     */
+    private String pathGet;
+
+    /**
+     * Maximum number of "get" requests permitted, after the initial request, to retrieve
+     * the response.
+     */
+    @Min(0)
+    private int maxGets;
+
+    /**
+     * Time, in seconds, to wait between issuing "get" requests.
+     */
+    @Min(1)
+    private int waitSecGet;
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java
new file mode 100644
index 000000000..be62bbb3f
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java
@@ -0,0 +1,82 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import static org.mockito.Mockito.when;
+
+import org.mockito.Mock;
+import org.onap.policy.controlloop.actor.test.BasicHttpOperation;
+import org.onap.policy.vfc.VfcRequest;
+import org.onap.policy.vfc.VfcResponse;
+
+public abstract class BasicVfcOperation extends BasicHttpOperation<VfcRequest> {
+    public static final String PATH_GET = "my-path-get/";
+    public static final int MAX_GETS = 3;
+    public static final int WAIT_SEC_GETS = 20;
+
+    @Mock
+    protected VfcConfig config;
+
+    protected VfcResponse response;
+
+    /**
+     * Constructs the object using a default actor and operation name.
+     */
+    public BasicVfcOperation() {
+        super();
+    }
+
+    /**
+     * Constructs the object.
+     *
+     * @param actor actor name
+     * @param operation operation name
+     */
+    public BasicVfcOperation(String actor, String operation) {
+        super(actor, operation);
+    }
+
+    /**
+     * Initializes mocks and sets up.
+     */
+    public void setUp() throws Exception {
+        super.setUpBasic();
+
+        response = new VfcResponse();
+
+        // PLD
+
+        when(rawResponse.getStatus()).thenReturn(200);
+        when(rawResponse.readEntity(String.class)).thenReturn(coder.encode(response));
+
+        initConfig();
+    }
+
+    @Override
+    protected void initConfig() {
+        super.initConfig();
+        when(config.getClient()).thenReturn(client);
+        when(config.getMaxGets()).thenReturn(MAX_GETS);
+        when(config.getPathGet()).thenReturn(PATH_GET);
+        when(config.getWaitSecGet()).thenReturn(WAIT_SEC_GETS);
+    }
+
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java
new file mode 100644
index 000000000..dd6c4cf69
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java
@@ -0,0 +1,61 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.concurrent.CompletableFuture;
+import org.apache.commons.lang3.tuple.Pair;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
+import org.onap.policy.vfc.VfcRequest;
+
+public class RestartTest extends BasicVfcOperation {
+    private Restart restartOper;
+
+    /**
+     * setup restart operation.
+     */
+    @Before
+    public void setup() throws Exception {
+        super.setUp();
+        params.getContext().getEnrichment().put("service-instance.service-instance-id", "test-service-instance-id");
+        params.getContext().getEnrichment().put("vserver.vserver-id", "test-vserver-id");
+        params.getContext().getEnrichment().put("vserver.vserver-name", "test-vserver-name");
+        restartOper = new Restart(params, config);
+    }
+
+    @Test
+    public void testStartOperationAsync() {
+        CompletableFuture<OperationOutcome> futureRes = restartOper.startOperationAsync(1, outcome);
+        assertNotNull(futureRes);
+        assertEquals(0, restartOper.getGetCount());
+    }
+
+    @Test
+    public void testMakeRequest() {
+        Pair<String, VfcRequest> resultPair = restartOper.makeRequest();
+        assertNotNull(resultPair.getLeft());
+        assertNotNull(resultPair.getRight());
+    }
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcConfigTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcConfigTest.java
new file mode 100644
index 000000000..f03e32393
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcConfigTest.java
@@ -0,0 +1,85 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertSame;
+import static org.mockito.Mockito.when;
+
+import java.util.concurrent.Executor;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.onap.policy.common.endpoints.http.client.HttpClient;
+import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
+
+public class VfcConfigTest {
+    private static final String MY_CLIENT = "my-client";
+    private static final String MY_PATH = "my-path";
+    private static final String GET_PATH = "get-path";
+    private static final int TIMEOUT_SEC = 10;
+    private static final int MAX_GETS = 20;
+    private static final int WAIT_SEC = 30;
+
+    @Mock
+    private HttpClient client;
+    @Mock
+    private HttpClientFactory factory;
+    @Mock
+    private Executor executor;
+
+    private VfcParams params;
+    private VfcConfig config;
+
+    /**
+     * Setup.
+     *
+     * @throws Exception Exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+
+        when(factory.get(MY_CLIENT)).thenReturn(client);
+
+        params = VfcParams.builder().maxGets(MAX_GETS).pathGet(GET_PATH).waitSecGet(WAIT_SEC).clientName(MY_CLIENT)
+                .path(MY_PATH).timeoutSec(TIMEOUT_SEC).build();
+        config = new VfcConfig(executor, params, factory);
+    }
+
+    @Test
+    public void test() {
+        assertEquals(GET_PATH + "/", config.getPathGet());
+        assertEquals(MAX_GETS, config.getMaxGets());
+        assertEquals(WAIT_SEC, config.getWaitSecGet());
+
+        // check value from superclass
+        assertSame(executor, config.getBlockingExecutor());
+        assertSame(client, config.getClient());
+
+        // path with trailing "/"
+        params = params.toBuilder().pathGet(GET_PATH + "/").build();
+        config = new VfcConfig(executor, params, factory);
+        assertEquals(GET_PATH + "/", config.getPathGet());
+    }
+
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java
new file mode 100644
index 000000000..4fe0cd4a6
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java
@@ -0,0 +1,127 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
+import java.util.concurrent.CompletableFuture;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
+import org.onap.policy.controlloop.policy.PolicyResult;
+import org.onap.policy.vfc.VfcResponse;
+import org.onap.policy.vfc.VfcResponseDescriptor;
+
+public class VfcOperationTest extends BasicVfcOperation {
+
+    private VfcOperation oper;
+
+    /**
+     * setUp.
+     */
+    @Override
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+
+        initConfig();
+
+        oper = new VfcOperation(params, config) {};
+    }
+
+    @Test
+    public void testConstructor_testGetWaitMsGet() {
+        assertEquals(DEFAULT_ACTOR, oper.getActorName());
+        assertEquals(DEFAULT_OPERATION, oper.getName());
+        assertSame(config, oper.getConfig());
+        assertEquals(1000 * WAIT_SEC_GETS, oper.getWaitMsGet());
+    }
+
+    @Test
+    public void testStartPreprocessorAsync() {
+        assertNotNull(oper.startPreprocessorAsync());
+    }
+
+    @Test
+    public void testResetGetCount() {
+        oper.resetGetCount();
+        assertEquals(0, oper.getGetCount());
+    }
+
+    @Test
+    public void testPostProcess() throws Exception {
+
+        assertThatExceptionOfType(IllegalArgumentException.class).isThrownBy(() -> {
+            oper.postProcessResponse(outcome, PATH, rawResponse, response);
+        });
+
+        response.setResponseDescriptor(new VfcResponseDescriptor());
+        response.setJobId("sampleJobId");
+        CompletableFuture<OperationOutcome> future2 = oper.postProcessResponse(outcome, PATH, rawResponse, response);
+        assertFalse(future2.isDone());
+        //assertSame(outcome, future2.get()); TODO Hanging
+        assertEquals(PolicyResult.SUCCESS, outcome.getResult());
+
+        response.getResponseDescriptor().setStatus("FinisHeD");
+        future2 = oper.postProcessResponse(outcome, PATH, rawResponse, response);
+        assertTrue(future2.isDone());
+        assertSame(outcome, future2.get());
+        assertEquals(PolicyResult.SUCCESS, outcome.getResult());
+
+        response.getResponseDescriptor().setStatus("eRRor");
+        future2 = oper.postProcessResponse(outcome, PATH, rawResponse, response);
+        assertTrue(future2.isDone());
+        assertSame(outcome, future2.get());
+        assertEquals(PolicyResult.FAILURE, outcome.getResult());
+
+        // failed
+        /*response.getResponseDescriptor().setStatus("anything but finished");
+        future2 = oper.postProcessResponse(outcome, PATH, rawResponse, response);
+        assertTrue(future2.isDone());
+        assertSame(outcome, future2.get());
+        assertEquals(PolicyResult.FAILURE, outcome.getResult());*/
+    }
+
+    @Test
+    public void testGetRequestState() {
+        VfcResponse mockResponse = Mockito.mock(VfcResponse.class);
+        Mockito.when(mockResponse.getResponseDescriptor()).thenReturn(null);
+        assertNull(oper.getRequestState(mockResponse));
+
+        VfcResponseDescriptor mockDescriptor = Mockito.mock(VfcResponseDescriptor.class);
+        Mockito.when(mockResponse.getResponseDescriptor()).thenReturn(mockDescriptor);
+        Mockito.when(mockDescriptor.getStatus()).thenReturn("COMPLETE"); // TODO use actual request state value
+        assertNotNull(oper.getRequestState(mockResponse));
+    }
+
+    @Test
+    public void testIsSuccess() {
+        assertTrue(oper.isSuccess(rawResponse, response));
+    }
+
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperatorTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperatorTest.java
new file mode 100644
index 000000000..d469d5a74
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperatorTest.java
@@ -0,0 +1,102 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.when;
+
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.onap.policy.common.endpoints.http.client.HttpClient;
+import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
+import org.onap.policy.controlloop.actorserviceprovider.Util;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
+
+public class VfcOperatorTest {
+    private static final String ACTOR = "my-actor";
+    private static final String OPERATION = "my-name";
+    private static final String CLIENT = "my-client";
+    private static final String PATH = "/my-path";
+    private static final String PATH_GET = "my-path-get/";
+    private static final int MAX_GETS = 3;
+    private static final int WAIT_SEC_GETS = 20;
+    private static final int TIMEOUT = 100;
+
+    private VfcOperator oper;
+
+    @Mock
+    private HttpClient client;
+
+    @Mock
+    private HttpClientFactory factory;
+
+    /**
+     * setUp.
+     *
+     * @throws Exception exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+
+        when(factory.get(CLIENT)).thenReturn(client);
+
+        oper = new MyOperator();
+
+        VfcParams params = VfcParams.builder().pathGet(PATH_GET).maxGets(MAX_GETS).waitSecGet(WAIT_SEC_GETS)
+                .clientName(CLIENT).path(PATH).timeoutSec(TIMEOUT).build();
+        Map<String, Object> paramMap = Util.translateToMap(OPERATION, params);
+        oper.configure(paramMap);
+    }
+
+    @Test
+    public void testConstructor() {
+        assertEquals(ACTOR, oper.getActorName());
+        assertEquals(OPERATION, oper.getName());
+        assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
+    }
+
+    @Test
+    public void testDoConfigure_testGetters() {
+        assertTrue(oper.getCurrentConfig() instanceof VfcConfig);
+
+        // test invalid parameters
+        Map<String, Object> paramMap2 = Util.translateToMap(OPERATION, VfcParams.builder().build());
+        assertThatThrownBy(() -> oper.configure(paramMap2)).isInstanceOf(ParameterValidationRuntimeException.class);
+    }
+
+    private class MyOperator extends VfcOperator {
+
+        public MyOperator() {
+            super(ACTOR, OPERATION, null);
+        }
+
+        @Override
+        protected HttpClientFactory getClientFactory() {
+            return factory;
+        }
+    }
+}
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcParamsTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcParamsTest.java
new file mode 100644
index 000000000..5e324463f
--- /dev/null
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcParamsTest.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.controlloop.actor.vfc;
+
+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.assertTrue;
+
+import java.util.function.Function;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.parameters.ValidationResult;
+import org.onap.policy.controlloop.actor.vfc.VfcParams.VfcParamsBuilder;
+import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams.HttpParamsBuilder;
+
+public class VfcParamsTest {
+    private static final String CONTAINER = "my-container";
+    private static final String CLIENT = "my-client";
+    private static final String PATH = "my-path";
+    private static final String PATH_GET = "my-path-get";
+    private static final int MAX_GETS = 3;
+    private static final int WAIT_SEC_GETS = 20;
+    private static final int TIMEOUT = 10;
+
+    private VfcParams params;
+
+    @Before
+    public void setUp() throws Exception {
+        params = VfcParams.builder().pathGet(PATH_GET).maxGets(MAX_GETS).waitSecGet(WAIT_SEC_GETS).clientName(CLIENT)
+                .path(PATH).timeoutSec(TIMEOUT).build();
+    }
+
+    @Test
+    public void testValidate() {
+        assertTrue(params.validate(CONTAINER).isValid());
+
+        testValidateField("pathGet", "null", bldr -> bldr.pathGet(null));
+        testValidateField("maxGets", "minimum", bldr -> bldr.maxGets(-1));
+        testValidateField("waitSecGet", "minimum", bldr -> bldr.waitSecGet(-1));
+
+        // validate one of the superclass fields
+        testValidateField("clientName", "null", bldr -> bldr.clientName(null));
+
+        // check edge cases
+        assertTrue(params.toBuilder().maxGets(0).build().validate(CONTAINER).isValid());
+        assertFalse(params.toBuilder().waitSecGet(0).build().validate(CONTAINER).isValid());
+        assertTrue(params.toBuilder().waitSecGet(1).build().validate(CONTAINER).isValid());
+    }
+
+    @Test
+    public void testBuilder_testToBuilder() {
+        assertEquals(CLIENT, params.getClientName());
+
+        assertEquals(PATH_GET, params.getPathGet());
+        assertEquals(MAX_GETS, params.getMaxGets());
+        assertEquals(WAIT_SEC_GETS, params.getWaitSecGet());
+
+        assertEquals(params, params.toBuilder().build());
+    }
+
+    private void testValidateField(String fieldName, String expected,
+                    @SuppressWarnings("rawtypes") Function<VfcParamsBuilder, HttpParamsBuilder> makeInvalid) {
+
+        // original params should be valid
+        ValidationResult result = params.validate(CONTAINER);
+        assertTrue(fieldName, result.isValid());
+
+        // make invalid params
+        result = makeInvalid.apply(params.toBuilder()).build().validate(CONTAINER);
+        assertFalse(fieldName, result.isValid());
+        assertThat(result.getResult()).contains(fieldName).contains(expected);
+    }
+
+}