| /* |
| * |
| * 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.systests.jms_1_1.messagelistener; |
| |
| import static junit.framework.TestCase.assertNotNull; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import javax.jms.Connection; |
| import javax.jms.JMSException; |
| import javax.jms.Message; |
| import javax.jms.MessageConsumer; |
| import javax.jms.MessageListener; |
| import javax.jms.Queue; |
| import javax.jms.Session; |
| |
| import org.junit.Test; |
| |
| import org.apache.qpid.systests.JmsTestBase; |
| import org.apache.qpid.systests.Utils; |
| |
| public class MessageListenerTest extends JmsTestBase |
| { |
| private static final int MSG_COUNT = 10; |
| |
| @Test |
| public void messageListener() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnection(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| final MessageConsumer consumer = session.createConsumer(queue); |
| |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT); |
| consumer.setMessageListener(countingMessageListener); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void synchronousReceiveFollowedByMessageListener() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnection(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| final MessageConsumer consumer = session.createConsumer(queue); |
| assertNotNull("Could not receive first message synchronously", consumer.receive(getReceiveTimeout())); |
| |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT - 1); |
| consumer.setMessageListener(countingMessageListener); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void connectionStopThenStart() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnectionBuilder().setPrefetch(0).build(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| |
| final MessageConsumer consumer = session.createConsumer(queue); |
| final int messageToReceivedBeforeConnectionStop = MSG_COUNT / 2; |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT, messageToReceivedBeforeConnectionStop); |
| consumer.setMessageListener(countingMessageListener); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| connection.stop(); |
| assertTrue("Too few messages received after Connection#stop()", countingMessageListener.getReceivedCount() >= messageToReceivedBeforeConnectionStop); |
| |
| countingMessageListener.resetLatch(); |
| connection.start(); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void connectionStopAndMessageListenerChange() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnectionBuilder().setPrefetch(0).build(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| |
| final MessageConsumer consumer = session.createConsumer(queue); |
| final int messageToReceivedBeforeConnectionStop = MSG_COUNT / 2; |
| CountingMessageListener countingMessageListener1 = new CountingMessageListener(MSG_COUNT, messageToReceivedBeforeConnectionStop); |
| consumer.setMessageListener(countingMessageListener1); |
| |
| countingMessageListener1.awaitMessages(getReceiveTimeout()); |
| |
| connection.stop(); |
| assertTrue("Too few messages received after Connection#stop()", countingMessageListener1.getReceivedCount() >= messageToReceivedBeforeConnectionStop); |
| |
| CountingMessageListener countingMessageListener2 = new CountingMessageListener(countingMessageListener1.getOutstandingCount()); |
| |
| consumer.setMessageListener(countingMessageListener2); |
| connection.start(); |
| |
| countingMessageListener2.awaitMessages(getReceiveTimeout()); |
| assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener2.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void connectionStopHaltsDeliveryToListener() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnectionBuilder().setPrefetch(0).build(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| |
| final MessageConsumer consumer = session.createConsumer(queue); |
| final int messageToReceivedBeforeConnectionStop = MSG_COUNT / 2; |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT, messageToReceivedBeforeConnectionStop); |
| consumer.setMessageListener(countingMessageListener); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| connection.stop(); |
| |
| final int outstandingCountAtStop = countingMessageListener.getOutstandingCount(); |
| countingMessageListener.resetLatch(); |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| assertEquals("Unexpected number of outstanding messages", outstandingCountAtStop, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void consumerCloseHaltsDeliveryToListener() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnectionBuilder().setPrefetch(0).build(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| |
| final MessageConsumer consumer = session.createConsumer(queue); |
| final int messageToReceivedBeforeConnectionStop = MSG_COUNT / 2; |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT, messageToReceivedBeforeConnectionStop); |
| consumer.setMessageListener(countingMessageListener); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| consumer.close(); |
| |
| final int outstandingCountAtStop = countingMessageListener.getOutstandingCount(); |
| countingMessageListener.resetLatch(); |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| |
| assertEquals("Unexpected number of outstanding messages", outstandingCountAtStop, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| @Test |
| public void twoMessageListeners() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection1 = getConnectionBuilder().setPrefetch(0).build(); |
| try |
| { |
| Session session1 = connection1.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Session session2 = connection1.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session1, queue, MSG_COUNT); |
| |
| final MessageConsumer consumer1 = session1.createConsumer(queue); |
| final MessageConsumer consumer2 = session2.createConsumer(queue); |
| |
| CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT); |
| consumer1.setMessageListener(countingMessageListener); |
| consumer2.setMessageListener(countingMessageListener); |
| |
| connection1.start(); |
| |
| countingMessageListener.awaitMessages(getReceiveTimeout()); |
| assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount()); |
| } |
| finally |
| { |
| connection1.close(); |
| } |
| } |
| |
| @Test |
| public void messageListenerDisallowsSynchronousReceive() throws Exception |
| { |
| Queue queue = createQueue(getTestName()); |
| Connection connection = getConnection(); |
| try |
| { |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Utils.sendMessages(session, queue, MSG_COUNT); |
| |
| connection.start(); |
| |
| final MessageConsumer consumer = session.createConsumer(queue); |
| consumer.setMessageListener(message -> { }); |
| |
| try |
| { |
| consumer.receive(); |
| fail("Exception not thrown"); |
| } |
| catch (JMSException e) |
| { |
| // PASS |
| } |
| } |
| finally |
| { |
| connection.close(); |
| } |
| } |
| |
| private final class CountingMessageListener implements MessageListener |
| { |
| private final AtomicInteger _receivedCount; |
| private final AtomicInteger _outstandingMessageCount; |
| private volatile CountDownLatch _awaitMessages; |
| |
| CountingMessageListener(final int totalExpectedMessageCount) |
| { |
| this(totalExpectedMessageCount, totalExpectedMessageCount); |
| } |
| |
| CountingMessageListener(int totalExpectedMessageCount, int numberOfMessagesToAwait) |
| { |
| _receivedCount = new AtomicInteger(0); |
| _outstandingMessageCount = new AtomicInteger(totalExpectedMessageCount); |
| _awaitMessages = new CountDownLatch(numberOfMessagesToAwait); |
| } |
| |
| int getOutstandingCount() |
| { |
| return _outstandingMessageCount.get(); |
| } |
| |
| int getReceivedCount() |
| { |
| return _receivedCount.get(); |
| } |
| |
| void resetLatch() |
| { |
| _awaitMessages = new CountDownLatch(_outstandingMessageCount.get()); |
| } |
| |
| @Override |
| public void onMessage(Message message) |
| { |
| _receivedCount.incrementAndGet(); |
| _outstandingMessageCount.decrementAndGet(); |
| _awaitMessages.countDown(); |
| } |
| |
| void awaitMessages(long timeout) throws Exception |
| { |
| _awaitMessages.await(timeout, TimeUnit.MILLISECONDS); |
| } |
| } |
| } |