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Diffstat (limited to 'java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerTest.java')
| -rw-r--r-- | java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerTest.java | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerTest.java b/java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerTest.java new file mode 100644 index 0000000000..b438304892 --- /dev/null +++ b/java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerTest.java @@ -0,0 +1,245 @@ +/* + * 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.QpidTestCase; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.jms.Connection; +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.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 MessageListenerMultiConsumerTest extends QpidTestCase +{ + private static final Logger _logger = LoggerFactory.getLogger(MessageListenerMultiConsumerTest.class); + + Context _context; + + private static final int MSG_COUNT = 6; + private int receivedCount1 = 0; + private int receivedCount2 = 0; + private Connection _clientConnection; + private MessageConsumer _consumer1; + private MessageConsumer _consumer2; + private Session _clientSession1; + private Queue _queue; + private final CountDownLatch _allMessagesSent = new CountDownLatch(2); // all messages Sent Lock + + protected void setUp() throws Exception + { + super.setUp(); + + // Create Client 1 + _clientConnection = getConnection("guest", "guest"); + + _clientConnection.start(); + + _clientSession1 = _clientConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); + + _queue =_clientSession1.createQueue("queue"); + + _consumer1 = _clientSession1.createConsumer(_queue); + + // Create Client 2 + Session clientSession2 = _clientConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); + + _consumer2 = clientSession2.createConsumer(_queue); + + // Create Producer + Connection producerConnection = getConnection("guest", "guest"); + + producerConnection.start(); + + Session producerSession = producerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); + + MessageProducer producer = producerSession.createProducer(_queue); + + for (int msg = 0; msg < MSG_COUNT; msg++) + { + producer.send(producerSession.createTextMessage("Message " + msg)); + } + + producerConnection.close(); + + } + + protected void tearDown() throws Exception + { + _clientConnection.close(); + super.tearDown(); + } + + public void testRecieveInterleaved() throws Exception + { + int msg = 0; + int MAX_LOOPS = MSG_COUNT * 2; + for (int loops = 0; (msg < MSG_COUNT) || (loops < MAX_LOOPS); loops++) + { + + if (_consumer1.receive(100) != null) + { + msg++; + } + + if (_consumer2.receive(100) != null) + { + msg++; + } + } + + assertEquals("Not all messages received.", MSG_COUNT, msg); + } + + public void testAsynchronousRecieve() throws Exception + { + _consumer1.setMessageListener(new MessageListener() + { + public void onMessage(Message message) + { + _logger.info("Client 1 Received Message(" + receivedCount1 + "):" + message); + + receivedCount1++; + + if (receivedCount1 == (MSG_COUNT / 2)) + { + _allMessagesSent.countDown(); + } + + } + }); + + _consumer2.setMessageListener(new MessageListener() + { + public void onMessage(Message message) + { + _logger.info("Client 2 Received Message(" + receivedCount2 + "):" + message); + + receivedCount2++; + if (receivedCount2 == (MSG_COUNT / 2)) + { + _allMessagesSent.countDown(); + } + } + }); + + _logger.info("Waiting upto 2 seconds for messages"); + + try + { + _allMessagesSent.await(4000, TimeUnit.MILLISECONDS); + } + catch (InterruptedException e) + { + // do nothing + } + + assertEquals(MSG_COUNT, receivedCount1 + receivedCount2); + } + + public void testRecieveC2Only() throws Exception + { + if ( + !Boolean.parseBoolean( + System.getProperties().getProperty(AMQSession.IMMEDIATE_PREFETCH, + AMQSession.IMMEDIATE_PREFETCH_DEFAULT))) + { + _logger.info("Performing Receive only on C2"); + for (int msg = 0; msg < MSG_COUNT; msg++) + { + assertTrue(MSG_COUNT + " msg should be received. Only received:" + msg, _consumer2.receive(1000) != null); + } + } + } + + public void testRecieveBoth() throws Exception + { + if ( + !Boolean.parseBoolean( + System.getProperties().getProperty(AMQSession.IMMEDIATE_PREFETCH, + AMQSession.IMMEDIATE_PREFETCH_DEFAULT))) + { + _logger.info("Performing Receive only with two consumers on one session "); + + MessageConsumer consumer2 = _clientSession1.createConsumer(_queue); + + int msg; + for (msg = 0; msg < (MSG_COUNT / 2); msg++) + { + + + final Message message = _consumer1.receive(1000); + if(message == null) + { + break; + } + + } + + _consumer1.close(); + _clientSession1.close(); + + for (; msg < MSG_COUNT ; msg++) + { + assertTrue("Failed at msg id" + msg, _consumer2.receive(1000) != null); + } + + } + else + { + _logger.info("Performing Receive only on both C1 and C2"); + + for (int msg = 0; msg < (MSG_COUNT / 2); msg++) + { + + assertTrue(_consumer1.receive(3000) != null); + } + + for (int msg = 0; msg < (MSG_COUNT / 2); msg++) + { + assertTrue(_consumer2.receive(3000) != null); + } + } + } + + public static junit.framework.Test suite() + { + return new junit.framework.TestSuite(MessageListenerMultiConsumerTest.class); + } +} |