| /** |
| * 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.activemq; |
| |
| import java.util.Random; |
| import java.util.Vector; |
| import java.util.concurrent.SynchronousQueue; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.jms.Connection; |
| import javax.jms.JMSException; |
| import javax.jms.Message; |
| import javax.jms.MessageConsumer; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| import javax.jms.TextMessage; |
| import javax.jms.Topic; |
| |
| /** |
| * |
| */ |
| public class JmsConnectionStartStopTest extends TestSupport { |
| |
| private static final org.apache.commons.logging.Log LOG = org.apache.commons.logging.LogFactory |
| .getLog(JmsConnectionStartStopTest.class); |
| |
| private Connection startedConnection; |
| private Connection stoppedConnection; |
| |
| /** |
| * @see junit.framework.TestCase#setUp() |
| */ |
| @Override |
| protected void setUp() throws Exception { |
| |
| LOG.info(getClass().getClassLoader().getResource("log4j.properties")); |
| |
| ActiveMQConnectionFactory factory = createConnectionFactory(); |
| startedConnection = factory.createConnection(); |
| startedConnection.start(); |
| stoppedConnection = factory.createConnection(); |
| } |
| |
| /** |
| * @see junit.framework.TestCase#tearDown() |
| */ |
| @Override |
| protected void tearDown() throws Exception { |
| stoppedConnection.close(); |
| startedConnection.close(); |
| } |
| |
| /** |
| * Tests if the consumer receives the messages that were sent before the |
| * connection was started. |
| * |
| * @throws JMSException |
| */ |
| public void testStoppedConsumerHoldsMessagesTillStarted() throws JMSException { |
| Session startedSession = startedConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| Session stoppedSession = stoppedConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| // Setup the consumers. |
| Topic topic = startedSession.createTopic("test"); |
| MessageConsumer startedConsumer = startedSession.createConsumer(topic); |
| MessageConsumer stoppedConsumer = stoppedSession.createConsumer(topic); |
| |
| // Send the message. |
| MessageProducer producer = startedSession.createProducer(topic); |
| TextMessage message = startedSession.createTextMessage("Hello"); |
| producer.send(message); |
| |
| // Test the assertions. |
| Message m = startedConsumer.receive(1000); |
| assertNotNull(m); |
| |
| m = stoppedConsumer.receive(1000); |
| assertNull(m); |
| |
| stoppedConnection.start(); |
| m = stoppedConsumer.receive(5000); |
| assertNotNull(m); |
| |
| startedSession.close(); |
| stoppedSession.close(); |
| } |
| |
| /** |
| * Tests if the consumer is able to receive messages eveb when the |
| * connecction restarts multiple times. |
| * |
| * @throws Exception |
| */ |
| public void testMultipleConnectionStops() throws Exception { |
| testStoppedConsumerHoldsMessagesTillStarted(); |
| stoppedConnection.stop(); |
| testStoppedConsumerHoldsMessagesTillStarted(); |
| stoppedConnection.stop(); |
| testStoppedConsumerHoldsMessagesTillStarted(); |
| } |
| |
| |
| public void testConcurrentSessionCreateWithStart() throws Exception { |
| ThreadPoolExecutor executor = new ThreadPoolExecutor(50, Integer.MAX_VALUE, |
| 60L, TimeUnit.SECONDS, |
| new SynchronousQueue<Runnable>()); |
| final Vector<Throwable> exceptions = new Vector<Throwable>(); |
| final Random rand = new Random(); |
| Runnable createSessionTask = new Runnable() { |
| @Override |
| public void run() { |
| try { |
| TimeUnit.MILLISECONDS.sleep(rand.nextInt(10)); |
| stoppedConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| } catch (Exception e) { |
| exceptions.add(e); |
| } |
| } |
| }; |
| |
| Runnable startStopTask = new Runnable() { |
| @Override |
| public void run() { |
| try { |
| TimeUnit.MILLISECONDS.sleep(rand.nextInt(10)); |
| stoppedConnection.start(); |
| stoppedConnection.stop(); |
| } catch (Exception e) { |
| exceptions.add(e); |
| } |
| } |
| }; |
| |
| for (int i=0; i<1000; i++) { |
| executor.execute(createSessionTask); |
| executor.execute(startStopTask); |
| } |
| |
| executor.shutdown(); |
| assertTrue("executor terminated", executor.awaitTermination(30, TimeUnit.SECONDS)); |
| assertTrue("no exceptions: " + exceptions, exceptions.isEmpty()); |
| } |
| } |