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ActiveMQ example source code file (CompositePublishTest.java)

This example ActiveMQ source code file (CompositePublishTest.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

activemqconnectionfactory, activemqtopic, activemqtopic, connection, connection, created, created, destination, destination, exception, list, messageconsumer, messagelistener, string, util

The ActiveMQ CompositePublishTest.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 java.util.List;

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.Session;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.test.JmsSendReceiveTestSupport;
import org.apache.activemq.test.retroactive.RetroactiveConsumerTestWithSimpleMessageListTest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class CompositePublishTest extends JmsSendReceiveTestSupport {
    private static final Logger LOG = LoggerFactory.getLogger(CompositePublishTest.class);

    protected Connection sendConnection;
    protected Connection receiveConnection;
    protected Session receiveSession;
    protected MessageConsumer[] consumers;
    protected List[] messageLists;

    protected void setUp() throws Exception {
        super.setUp();

        connectionFactory = createConnectionFactory();

        sendConnection = createConnection();
        sendConnection.start();

        receiveConnection = createConnection();
        receiveConnection.start();

        LOG.info("Created sendConnection: " + sendConnection);
        LOG.info("Created receiveConnection: " + receiveConnection);

        session = sendConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        receiveSession = receiveConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        LOG.info("Created sendSession: " + session);
        LOG.info("Created receiveSession: " + receiveSession);

        producer = session.createProducer(null);

        LOG.info("Created producer: " + producer);

        if (topic) {
            consumerDestination = session.createTopic(getConsumerSubject());
            producerDestination = session.createTopic(getProducerSubject());
        } else {
            consumerDestination = session.createQueue(getConsumerSubject());
            producerDestination = session.createQueue(getProducerSubject());
        }

        LOG.info("Created  consumer destination: " + consumerDestination + " of type: " + consumerDestination.getClass());
        LOG.info("Created  producer destination: " + producerDestination + " of type: " + producerDestination.getClass());

        Destination[] destinations = getDestinations();
        consumers = new MessageConsumer[destinations.length];
        messageLists = new List[destinations.length];
        for (int i = 0; i < destinations.length; i++) {
            Destination dest = destinations[i];
            messageLists[i] = createConcurrentList();
            consumers[i] = receiveSession.createConsumer(dest);
            consumers[i].setMessageListener(createMessageListener(i, messageLists[i]));
        }

        LOG.info("Started connections");
    }

    protected MessageListener createMessageListener(int i, final List<Message> messageList) {
        return new MessageListener() {
            public void onMessage(Message message) {
                consumeMessage(message, messageList);
            }
        };
    }

    /**
     * Returns the subject on which we publish
     */
    protected String getSubject() {
        return getPrefix() + "FOO.BAR," + getPrefix() + "FOO.X.Y";
    }

    /**
     * Returns the destinations to which we consume
     */
    protected Destination[] getDestinations() {
        return new Destination[] {new ActiveMQTopic(getPrefix() + "FOO.BAR"), new ActiveMQTopic(getPrefix() + "FOO.*"), new ActiveMQTopic(getPrefix() + "FOO.X.Y")};
    }

    protected String getPrefix() {
        return super.getSubject() + ".";
    }

    protected void assertMessagesAreReceived() throws JMSException {
        waitForMessagesToBeDelivered();
        int size = messageLists.length;
        for (int i = 0; i < size; i++) {
            LOG.info("Message list: " + i + " contains: " + messageLists[i].size() + " message(s)");
        }
        size = messageLists.length;
        for (int i = 0; i < size; i++) {
            assertMessagesReceivedAreValid(messageLists[i]);
        }
    }

    protected ActiveMQConnectionFactory createConnectionFactory() {
        return new ActiveMQConnectionFactory("vm://localhost");
    }

    protected void tearDown() throws Exception {
        session.close();
        receiveSession.close();

        sendConnection.close();
        receiveConnection.close();
    }
}

Other ActiveMQ examples (source code examples)

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

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