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ActiveMQ example source code file (PeerTransportTest.java)

This example ActiveMQ source code file (PeerTransportTest.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

activemqdestination, activemqdestination, connection, connection, exception, jmsexception, message_count, message_count, messageconsumer, messageidlist, messageproducer, number_in_cluster, number_in_cluster, session

The ActiveMQ PeerTransportTest.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.transport.peer;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.advisory.AdvisorySupport;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQMessage;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTextMessage;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.util.MessageIdList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class PeerTransportTest extends TestCase {
    protected static final int MESSAGE_COUNT = 50;
    protected static final int NUMBER_IN_CLUSTER = 3;
    private static final Logger LOG = LoggerFactory.getLogger(PeerTransportTest.class);
    
    protected ActiveMQDestination destination;
    protected boolean topic = true;
    protected int deliveryMode = DeliveryMode.NON_PERSISTENT;
    protected MessageProducer[] producers;
    protected Connection[] connections;
    protected MessageIdList messageIdList[];

    protected void setUp() throws Exception {

        connections = new Connection[NUMBER_IN_CLUSTER];
        producers = new MessageProducer[NUMBER_IN_CLUSTER];
        messageIdList = new MessageIdList[NUMBER_IN_CLUSTER];
        ActiveMQDestination destination = createDestination();

        String root = System.getProperty("activemq.store.dir");

        for (int i = 0; i < NUMBER_IN_CLUSTER; i++) {
            connections[i] = createConnection(i);
            connections[i].setClientID("ClusterTest" + i);
            connections[i].start();

            Session session = connections[i].createSession(false, Session.AUTO_ACKNOWLEDGE);
            producers[i] = session.createProducer(destination);
            producers[i].setDeliveryMode(deliveryMode);
            MessageConsumer consumer = createMessageConsumer(session, destination);
            messageIdList[i] = new MessageIdList();
            consumer.setMessageListener(messageIdList[i]);
        }

        LOG.info("Waiting for cluster to be fully connected");

        // Each connection should see that NUMBER_IN_CLUSTER consumers get
        // registered on the destination.
        ActiveMQDestination advisoryDest = AdvisorySupport.getConsumerAdvisoryTopic(destination);
        for (int i = 0; i < NUMBER_IN_CLUSTER; i++) {
            Session session = connections[i].createSession(false, Session.AUTO_ACKNOWLEDGE);
            MessageConsumer consumer = createMessageConsumer(session, advisoryDest);

            int j = 0;
            while (j < NUMBER_IN_CLUSTER) {
                ActiveMQMessage message = (ActiveMQMessage)consumer.receive(1000);
                if (message == null) {
                    fail("Connection " + i + " saw " + j + " consumers, expected: " + NUMBER_IN_CLUSTER);
                }
                if (message.getDataStructure() != null && message.getDataStructure().getDataStructureType() == ConsumerInfo.DATA_STRUCTURE_TYPE) {
                    j++;
                }
            }

            session.close();
        }

        LOG.info("Cluster is online.");
    }

    protected void tearDown() throws Exception {
        if (connections != null) {
            for (int i = 0; i < connections.length; i++) {
                connections[i].close();
            }
        }
    }

    protected MessageConsumer createMessageConsumer(Session session, Destination destination) throws JMSException {
        return session.createConsumer(destination);
    }

    protected Connection createConnection(int i) throws JMSException {
        LOG.info("creating connection ....");
        ActiveMQConnectionFactory fac = new ActiveMQConnectionFactory("peer://" + getClass().getName() + "/node" + i);
        return fac.createConnection();
    }

    protected ActiveMQDestination createDestination() {
        return createDestination(getClass().getName());
    }

    protected ActiveMQDestination createDestination(String name) {
        if (topic) {
            return new ActiveMQTopic(name);
        } else {
            return new ActiveMQQueue(name);
        }
    }

    /**
     * @throws Exception
     */
    public void testSendReceive() throws Exception {
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            for (int x = 0; x < producers.length; x++) {
                TextMessage textMessage = new ActiveMQTextMessage();
                textMessage.setText("MSG-NO: " + i + " in cluster: " + x);
                producers[x].send(textMessage);
            }
        }

        for (int i = 0; i < NUMBER_IN_CLUSTER; i++) {
            messageIdList[i].assertMessagesReceived(expectedReceiveCount());
        }
    }

    protected int expectedReceiveCount() {
        return MESSAGE_COUNT * NUMBER_IN_CLUSTER;
    }

}

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