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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.client;
import org.apache.qpid.test.utils.QpidBrokerTestCase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.jms.Connection;
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.TextMessage;
import javax.naming.Context;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
/**
* QPID-293 Setting MessageListener after connection has started can cause messages to be "lost" on a internal delivery
* queue <p/> The message delivery process: Mina puts a message on _queue in AMQSession and the dispatcher thread
* take()s from here and dispatches to the _consumers. If the _consumer1 doesn't have a message listener set at
* connection start then messages are stored on _synchronousQueue (which needs to be > 1 to pass JMS TCK as multiple
* consumers on a session can run in any order and a synchronous put/poll will block the dispatcher). <p/> When setting
* the message listener later the _synchronousQueue is just poll()'ed and the first message delivered the remaining
* messages will be left on the queue and lost, subsequent messages on the session will arrive first.
*/
public class ResetMessageListenerTest extends QpidBrokerTestCase
{
private static final Logger _logger = LoggerFactory.getLogger(ResetMessageListenerTest.class);
Context _context;
private static final int MSG_COUNT = 6;
private Connection _clientConnection, _producerConnection;
private MessageConsumer _consumer1;
MessageProducer _producer;
Session _clientSession, _producerSession;
private final CountDownLatch _allFirstMessagesSent = new CountDownLatch(MSG_COUNT); // all messages Sent Lock
private final CountDownLatch _allSecondMessagesSent = new CountDownLatch(MSG_COUNT); // all messages Sent Lock
protected void setUp() throws Exception
{
super.setUp();
_clientConnection = getConnection("guest", "guest");
_clientConnection.start();
// Create Client 1
_clientSession = _clientConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = _clientSession.createQueue("reset-message-listener-test-queue");
_consumer1 = _clientSession.createConsumer(queue);
// Create Producer
_producerConnection = getConnection("guest", "guest");
_producerConnection.start();
_producerSession = _producerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
_producer = _producerSession.createProducer(queue);
TextMessage m = _producerSession.createTextMessage();
m.setStringProperty("rank", "first");
for (int msg = 0; msg < MSG_COUNT; msg++)
{
m.setText("Message " + msg);
_producer.send(m);
}
}
protected void tearDown() throws Exception
{
_clientConnection.close();
super.tearDown();
}
public void testAsynchronousRecieve()
{
_logger.info("Test Start");
try
{
_consumer1.setMessageListener(new MessageListener()
{
public void onMessage(Message message)
{
try
{
if (message.getStringProperty("rank").equals("first"))
{
_allFirstMessagesSent.countDown();
}
}
catch (JMSException e)
{
e.printStackTrace();
fail("error receiving message");
}
}
});
}
catch (JMSException e)
{
_logger.error("Error Setting Default ML on consumer1");
}
try
{
assertTrue("Did not receive all first batch of messages",
_allFirstMessagesSent.await(MSG_COUNT, TimeUnit.SECONDS));
_logger.info("Received first batch of messages");
}
catch (InterruptedException e)
{
// do nothing
}
try
{
_clientConnection.stop();
}
catch (JMSException e)
{
_logger.error("Error stopping connection");
}
_logger.info("Reset Message Listener ");
try
{
_consumer1.setMessageListener(new MessageListener()
{
public void onMessage(Message message)
{
try
{
if (message.getStringProperty("rank").equals("first"))
{
// Something ugly will happen, it'll probably kill the dispatcher
fail("All first set of messages should have been received");
}
else
{
_allSecondMessagesSent.countDown();
}
}
catch (JMSException e)
{
e.printStackTrace();
// Something ugly will happen, it'll probably kill the dispatcher
fail("error receiving message");
}
}
});
_clientConnection.start();
}
catch (javax.jms.IllegalStateException e)
{
_logger.error("Connection not stopped while setting ML", e);
fail("Unable to change message listener:" + e.getCause());
}
catch (JMSException e)
{
_logger.error("Error Setting Better ML on consumer1", e);
}
try
{
_logger.info("Send additional messages");
TextMessage m = _producerSession.createTextMessage();
m.setStringProperty("rank", "second");
for (int msg = 0; msg < MSG_COUNT; msg++)
{
m.setText("Message " + msg);
_producer.send(m);
}
}
catch (JMSException e)
{
_logger.error("Unable to send additional messages", e);
}
_logger.info("Waiting for messages");
try
{
assertTrue(_allSecondMessagesSent.await(MSG_COUNT, TimeUnit.SECONDS));
}
catch (InterruptedException e)
{
// do nothing
}
assertEquals("First batch of messages not received correctly", 0, _allFirstMessagesSent.getCount());
assertEquals("Second batch of messages not received correctly", 0, _allSecondMessagesSent.getCount());
}
public static junit.framework.Test suite()
{
return new junit.framework.TestSuite(ResetMessageListenerTest.class);
}
}
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