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ActiveMQ example source code file (StartAndStopClientAndBrokerDoesNotLeaveThreadsRunningTest.java)
The ActiveMQ StartAndStopClientAndBrokerDoesNotLeaveThreadsRunningTest.java source code/** * 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.usecases; import javax.jms.Connection; import javax.jms.MessageConsumer; import javax.jms.MessageProducer; import javax.jms.Queue; import javax.jms.Session; import javax.jms.TextMessage; import junit.framework.TestCase; import org.apache.activemq.ActiveMQConnectionFactory; import org.apache.activemq.broker.BrokerService; import org.apache.activemq.spring.ConsumerBean; /** * * */ public class StartAndStopClientAndBrokerDoesNotLeaveThreadsRunningTest extends TestCase { public static interface Task { void execute() throws Exception; } public void setUp() throws Exception { } public void testStartAndStopClientAndBrokerAndCheckNoThreadsAreLeft() throws Exception { runTest(new Task() { public void execute() throws Exception { BrokerService broker = new BrokerService(); broker.setPersistent(false); broker.start(); ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost"); Connection connection = factory.createConnection(); connection.start(); Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); Queue destination = session.createQueue(getName()); // consumer MessageConsumer consumer = session.createConsumer(destination); ConsumerBean listener = new ConsumerBean(); consumer.setMessageListener(listener); // producer MessageProducer producer = session.createProducer(destination); TextMessage message = session.createTextMessage("Hello World!"); producer.send(message); producer.close(); listener.assertMessagesArrived(1); consumer.close(); session.close(); connection.close(); broker.stop(); } }); } public void runTest(Task task) throws Exception { int numThreads = Thread.currentThread().getThreadGroup().activeCount(); // Thread.currentThread().getThreadGroup().list(); task.execute(); Thread.yield(); Thread.sleep(2000); // Wait for the threads to exit on their own // Thread.currentThread().getThreadGroup().list(); int activeCount = Thread.currentThread().getThreadGroup().activeCount(); assertTrue("Should be at most one more thread but was: " + activeCount, numThreads + 1 <= activeCount); } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ StartAndStopClientAndBrokerDoesNotLeaveThreadsRunningTest.java source code file: |
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