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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
package org.apache.qpid.test.client.message;
import java.util.concurrent.atomic.AtomicReference;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.IllegalStateException;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TemporaryQueue;
import org.apache.qpid.test.utils.QpidBrokerTestCase;
/**
* Tests that {@link Message#setJMSReplyTo(Destination)} can be used to pass a {@link Destination} between
* messaging clients as is commonly used in request/response messaging pattern implementations.
*/
public class JMSReplyToTest extends QpidBrokerTestCase
{
private AtomicReference<Throwable> _caughtException = new AtomicReference<Throwable>();
private Queue _requestQueue;
private Connection _connection;
private Session _session;
@Override
protected void setUp() throws Exception
{
super.setUp();
_requestQueue = startAsyncRespondingJmsConsumerOnSeparateConnection();
_connection = getConnection();
_connection.start();
_session = _connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
}
public void testRequestResponseUsingJmsReplyTo() throws Exception
{
final String responseQueueName = getTestQueueName() + ".response";
Queue replyToQueue = _session.createQueue(responseQueueName);
sendRequestAndValidateResponse(replyToQueue);
}
public void testRequestResponseUsingTemporaryJmsReplyTo() throws Exception
{
TemporaryQueue replyToQueue = _session.createTemporaryQueue();
sendRequestAndValidateResponse(replyToQueue);
}
private void sendRequestAndValidateResponse(Queue replyToQueue) throws JMSException, Exception
{
MessageConsumer replyConsumer = _session.createConsumer(replyToQueue);
Message requestMessage = createRequestMessageWithJmsReplyTo(_session, replyToQueue);
sendRequest(_requestQueue, _session, requestMessage);
receiveAndValidateResponse(replyConsumer, requestMessage);
assertNull("Async responder caught unexpected exception", _caughtException.get());
}
private Message createRequestMessageWithJmsReplyTo(Session session, Queue replyToQueue)
throws JMSException
{
Message requestMessage = session.createTextMessage("My request");
requestMessage.setJMSReplyTo(replyToQueue);
return requestMessage;
}
private void sendRequest(final Queue requestQueue, Session session, Message requestMessage) throws Exception
{
MessageProducer producer = session.createProducer(requestQueue);
producer.send(requestMessage);
}
private void receiveAndValidateResponse(MessageConsumer replyConsumer, Message requestMessage) throws JMSException
{
Message responseMessage = replyConsumer.receive(RECEIVE_TIMEOUT);
assertNotNull("Response message not received", responseMessage);
assertEquals("Correlation id of the response should match message id of the request",
responseMessage.getJMSCorrelationID(), requestMessage.getJMSMessageID());
}
private Queue startAsyncRespondingJmsConsumerOnSeparateConnection() throws Exception
{
final String requestQueueName = getTestQueueName() + ".request";
final Connection responderConnection = getConnection();
responderConnection.start();
final Session responderSession = responderConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
final Queue requestQueue = responderSession.createQueue(requestQueueName);
final MessageConsumer requestConsumer = responderSession.createConsumer(requestQueue);
requestConsumer.setMessageListener(new AsyncResponder(responderSession));
return requestQueue;
}
private final class AsyncResponder implements MessageListener
{
private final Session _responderSession;
private AsyncResponder(Session responderSession)
{
_responderSession = responderSession;
}
@Override
public void onMessage(Message requestMessage)
{
try
{
Destination replyTo = getReplyToQueue(requestMessage);
Message responseMessage = _responderSession.createMessage();
responseMessage.setJMSCorrelationID(requestMessage.getJMSMessageID());
sendResponseToQueue(replyTo, responseMessage);
}
catch (Throwable t)
{
_caughtException.set(t);
}
}
private Destination getReplyToQueue(Message requestMessage) throws JMSException, IllegalStateException
{
Destination replyTo = requestMessage.getJMSReplyTo();
if (replyTo == null)
{
throw new IllegalStateException("JMSReplyTo was null on message " + requestMessage);
}
return replyTo;
}
private void sendResponseToQueue(Destination replyTo, Message responseMessage)
throws JMSException
{
MessageProducer responseProducer = _responderSession.createProducer(replyTo);
responseProducer.send(responseMessage);
}
}
}
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