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ActiveMQ example source code file (TempQueueMemoryTest.java)

This example ActiveMQ source code file (TempQueueMemoryTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

advisorybroker, connection, destination, exception, exception, messageproducer, producer, producer, regionbroker, session, session, thread, thread, util, vector

The ActiveMQ TempQueueMemoryTest.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.advisory;

import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.region.RegionBroker;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import java.util.Vector;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TemporaryQueue;

/**
 * 
 */
public class TempQueueMemoryTest extends EmbeddedBrokerTestSupport {
    protected Connection serverConnection;
    protected Session serverSession;
    protected Connection clientConnection;
    protected Session clientSession;
    protected Destination serverDestination;
    protected int messagesToSend = 2000;
    protected boolean deleteTempQueue = true;
    protected boolean serverTransactional = false;
    protected boolean clientTransactional = false;
    protected int numConsumers = 1;
    protected int numProducers = 1;
    

    public void testConcurrentProducerRequestReply() throws Exception {
        numProducers = 10;
        testLoadRequestReply();
    }
    
    public void testLoadRequestReply() throws Exception {
        for (int i=0; i< numConsumers; i++) {
            serverSession.createConsumer(serverDestination).setMessageListener(new MessageListener() {
                public void onMessage(Message msg) {
                    try {
                        Destination replyTo = msg.getJMSReplyTo();
                        MessageProducer producer = serverSession.createProducer(replyTo);
                        producer.send(replyTo, msg);
                        if (serverTransactional) {
                            serverSession.commit();
                        }
                        producer.close();
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }
            });
        }
        
        class Producer extends Thread {
            private int numToSend;
            public Producer(int numToSend) {
                this.numToSend = numToSend;
            }
            public void run() {     
                try {
                    Session session = clientConnection.createSession(clientTransactional, 
                            clientTransactional ? Session.SESSION_TRANSACTED : Session.AUTO_ACKNOWLEDGE);
                    MessageProducer producer = session.createProducer(serverDestination);
               
                    for (int i =0; i< numToSend; i++) {
                        TemporaryQueue replyTo = session.createTemporaryQueue();
                        MessageConsumer consumer = session.createConsumer(replyTo);
                        Message msg = session.createMessage();
                        msg.setJMSReplyTo(replyTo);
                        producer.send(msg);
                        if (clientTransactional) {
                            session.commit();
                        }
                        consumer.receive();
                        if (clientTransactional) {
                            session.commit();
                        }
                        consumer.close();
                        if (deleteTempQueue) {
                            replyTo.delete();
                        } else {
                            // temp queue will be cleaned up on clientConnection.close
                        }
                    }
                } catch (JMSException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        Vector<Thread> threads = new Vector(numProducers);
        for (int i=0; i<numProducers ; i++) {
            threads.add(new Producer(messagesToSend/numProducers));
        }
        startAndJoinThreads(threads);
        
        clientSession.close();
        serverSession.close();
        clientConnection.close();
        serverConnection.close();
        
        AdvisoryBroker ab = (AdvisoryBroker) broker.getBroker().getAdaptor(
                AdvisoryBroker.class);
              
        ///The server destination will be left
        assertTrue(ab.getAdvisoryDestinations().size() == 1);
        
        assertTrue("should be zero but is "+ab.getAdvisoryConsumers().size(),ab.getAdvisoryConsumers().size() == 0);
        assertTrue("should be zero but is "+ab.getAdvisoryProducers().size(),ab.getAdvisoryProducers().size() == 0);
               
        RegionBroker rb = (RegionBroker) broker.getBroker().getAdaptor(
                RegionBroker.class);
        
               
        //serverDestination + 
        assertEquals(6, rb.getDestinationMap().size());          
    }

    private void startAndJoinThreads(Vector<Thread> threads) throws Exception {
        for (Thread thread: threads) {
            thread.start();
        }
        for (Thread thread: threads) {
            thread.join();
        }
    }

    protected void setUp() throws Exception {
        super.setUp();
        serverConnection = createConnection();
        serverConnection.start();
        serverSession = serverConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        clientConnection = createConnection();
        clientConnection.start();
        clientSession = clientConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        serverDestination = createDestination();
    }

    protected void tearDown() throws Exception {
        
        super.tearDown();
        serverTransactional = clientTransactional = false;
        numConsumers = numProducers = 1;
        messagesToSend = 2000;
    }
    
    protected ActiveMQDestination createDestination() {
        return new ActiveMQQueue(getClass().getName());
    }
    
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ TempQueueMemoryTest.java source code file:

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