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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.core.deployment;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
import org.onap.policy.apex.core.protocols.Message;
import org.onap.policy.apex.core.protocols.engdep.messages.EngineServiceInfoResponse;
import org.onap.policy.apex.core.protocols.engdep.messages.GetEngineInfo;
import org.onap.policy.apex.core.protocols.engdep.messages.GetEngineServiceInfo;
import org.onap.policy.apex.core.protocols.engdep.messages.GetEngineStatus;
import org.onap.policy.apex.core.protocols.engdep.messages.Response;
import org.onap.policy.apex.core.protocols.engdep.messages.StartEngine;
import org.onap.policy.apex.core.protocols.engdep.messages.StartPeriodicEvents;
import org.onap.policy.apex.core.protocols.engdep.messages.StopEngine;
import org.onap.policy.apex.core.protocols.engdep.messages.StopPeriodicEvents;
import org.onap.policy.apex.core.protocols.engdep.messages.UpdateModel;
import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
import org.onap.policy.apex.model.utilities.TextFileUtils;
/**
* Dummy deployment client.
*/
public class DummyDeploymentClient extends DeploymentClient implements Runnable {
private static final AxArtifactKey MODEL_KEY = new AxArtifactKey("Model", "0.0.1");
private static final AxArtifactKey ENGINE_KEY = new AxArtifactKey("Engine", "0.0.1");
private static final AxArtifactKey ENGINE_SERVICE_KEY = new AxArtifactKey("EngineService", "0.0.1");
private Thread thisThread;
private final BlockingQueue<Message> receiveQueue = new LinkedBlockingQueue<>();
private boolean started = false;
private boolean initSuccessful = false;
private boolean deployModelSuccessful = false;
private boolean startEngineSuccessful = false;
private boolean stopEngineSuccessful = false;
private boolean startPeriodicSuccessful = false;
private boolean stopPeriodicSuccessful = false;
private boolean statusSuccessful = false;
private boolean infoSuccessful = false;
public DummyDeploymentClient(String host, int port) {
super(host, port);
}
/**
* {@inheritDoc}
*/
@Override
public void run() {
// Set up the thread name
thisThread = Thread.currentThread();
thisThread.setName(DeploymentClient.class.getName() + "-" + getHost() + ":" + getPort());
started = true;
// Loop forever, sending messages as they appear on the queue
while (started && !thisThread.isInterrupted()) {
ThreadUtilities.sleep(50);
}
// Thread has been interrupted
thisThread = null;
started = false;
}
/**
* Send an EngDep message to the Apex server.
*
* @param message the message to send to the Apex server
*/
public void sendMessage(final Message message) {
if (message instanceof GetEngineServiceInfo) {
handleEngineServiceInfo(message);
} else if (message instanceof UpdateModel) {
deployModelSuccessful = handleAndReturnMessage(message, deployModelSuccessful);
} else if (message instanceof StartEngine) {
startEngineSuccessful = handleAndReturnMessage(message, startEngineSuccessful);
} else if (message instanceof StopEngine) {
stopEngineSuccessful = handleAndReturnMessage(message, stopEngineSuccessful);
} else if (message instanceof StartPeriodicEvents) {
startPeriodicSuccessful = handleAndReturnMessage(message, startPeriodicSuccessful);
} else if (message instanceof StopPeriodicEvents) {
stopPeriodicSuccessful = handleAndReturnMessage(message, stopPeriodicSuccessful);
} else if (message instanceof GetEngineStatus) {
statusSuccessful = handleAndReturnEngineStatus(message, statusSuccessful);
} else if (message instanceof GetEngineInfo) {
infoSuccessful = handleAndReturnMessage(message, infoSuccessful);
}
}
/**
* Handle the EngineServiceInfo message.
*
* @param message the EngineServiceInfo message
*/
private void handleEngineServiceInfo(final Message message) {
EngineServiceInfoResponse infoResponse = new EngineServiceInfoResponse(ENGINE_KEY, initSuccessful, message);
infoResponse.setApexModelKey(MODEL_KEY);
List<AxArtifactKey> engineKeyList = new ArrayList<>();
engineKeyList.add(ENGINE_KEY);
infoResponse.setEngineKeyArray(engineKeyList);
infoResponse.setEngineServiceKey(ENGINE_SERVICE_KEY);
receiveQueue.add(infoResponse);
initSuccessful = !initSuccessful;
}
/**
* Handle and return the response to the engine status message.
*
* @param message the incoming status message
* @param successFlag true if the result should be successful
* @return
*/
private boolean handleAndReturnEngineStatus(Message message, boolean successFlag) {
if ("DoNotRespond".equals(message.getTarget().getName())) {
return !successFlag;
}
if ("ReturnBadMessage".equals(message.getTarget().getName())) {
receiveQueue.add(message);
return !successFlag;
}
if ("ReturnBadResponse".equals(message.getTarget().getName())) {
Response badResponse = new Response(ENGINE_KEY, successFlag,new StartEngine(message.getTarget()));
receiveQueue.add(badResponse);
return !successFlag;
}
Response response = new Response(ENGINE_KEY, successFlag, message);
if (successFlag) {
try {
response.setMessageData(TextFileUtils
.getTextFileAsString("src/test/resources/models/SamplePolicyModelJAVASCRIPT.json"));
} catch (IOException e) {
e.printStackTrace();
}
} else {
response.setMessageData("Operation failed");
}
receiveQueue.add(response);
return !successFlag;
}
/**
* Handle and return a message.
*
* @param message the message
*/
private boolean handleAndReturnMessage(final Message message, final boolean successFlag) {
Response response = new Response(ENGINE_KEY, successFlag, message);
if (successFlag) {
response.setMessageData("Operation was successful");
} else {
response.setMessageData("Operation failed");
}
receiveQueue.add(response);
return !successFlag;
}
/**
* Stop the deployment client.
*/
public void stopClient() {
if (thisThread != null) {
thisThread.interrupt();
}
started = false;
}
/**
* Checks if the client thread is started.
*
* @return true, if the client thread is started
*/
public boolean isStarted() {
return started;
}
/**
* Allows users of this class to get a reference to the receive queue to receove messages.
*
* @return the receive queue
*/
public BlockingQueue<Message> getReceiveQueue() {
return receiveQueue;
}
}
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