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ActiveMQ example source code file (SimpleNetworkTest.java)

This example ActiveMQ source code file (SimpleNetworkTest.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, brokerservice, brokerservice, exception, exception, message, message_count, message_count, messageconsumer, messageconsumer, messageproducer, net, network, string, textmessage

The ActiveMQ SimpleNetworkTest.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.network;

import java.net.URI;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
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.TextMessage;
import javax.jms.TopicRequestor;
import javax.jms.TopicSession;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.xbean.BrokerFactoryBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

public class SimpleNetworkTest extends TestCase {

    protected static final int MESSAGE_COUNT = 10;
    private static final Logger LOG = LoggerFactory.getLogger(SimpleNetworkTest.class);

    protected AbstractApplicationContext context;
    protected Connection localConnection;
    protected Connection remoteConnection;
    protected BrokerService localBroker;
    protected BrokerService remoteBroker;
    protected Session localSession;
    protected Session remoteSession;
    protected ActiveMQTopic included;
    protected ActiveMQTopic excluded;
    protected String consumerName = "durableSubs";

    public void testRequestReply() throws Exception {
        final MessageProducer remoteProducer = remoteSession.createProducer(null);
        MessageConsumer remoteConsumer = remoteSession.createConsumer(included);
        remoteConsumer.setMessageListener(new MessageListener() {
            public void onMessage(Message msg) {
                try {
                    TextMessage textMsg = (TextMessage)msg;
                    String payload = "REPLY: " + textMsg.getText();
                    Destination replyTo;
                    replyTo = msg.getJMSReplyTo();
                    textMsg.clearBody();
                    textMsg.setText(payload);
                    remoteProducer.send(replyTo, textMsg);
                } catch (JMSException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        });

        TopicRequestor requestor = new TopicRequestor((TopicSession)localSession, included);
        // allow for consumer infos to perculate arround
        Thread.sleep(5000);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            TextMessage msg = localSession.createTextMessage("test msg: " + i);
            TextMessage result = (TextMessage)requestor.request(msg);
            assertNotNull(result);
            LOG.info(result.getText());
        }
    }

    public void testFiltering() throws Exception {

        MessageConsumer includedConsumer = remoteSession.createConsumer(included);
        MessageConsumer excludedConsumer = remoteSession.createConsumer(excluded);
        MessageProducer includedProducer = localSession.createProducer(included);
        MessageProducer excludedProducer = localSession.createProducer(excluded);
        // allow for consumer infos to perculate arround
        Thread.sleep(2000);
        Message test = localSession.createTextMessage("test");
        includedProducer.send(test);
        excludedProducer.send(test);
        assertNull(excludedConsumer.receive(1000));
        assertNotNull(includedConsumer.receive(1000));
    }

    public void testConduitBridge() throws Exception {
        MessageConsumer consumer1 = remoteSession.createConsumer(included);
        MessageConsumer consumer2 = remoteSession.createConsumer(included);
        MessageProducer producer = localSession.createProducer(included);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        Thread.sleep(2000);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            Message test = localSession.createTextMessage("test-" + i);
            producer.send(test);
            assertNotNull(consumer1.receive(1000));
            assertNotNull(consumer2.receive(1000));
        }
        // ensure no more messages received
        assertNull(consumer1.receive(1000));
        assertNull(consumer2.receive(1000));
    }

    public void testDurableStoreAndForward() throws Exception {
        // create a remote durable consumer
        MessageConsumer remoteConsumer = remoteSession.createDurableSubscriber(included, consumerName);
        Thread.sleep(1000);
        // now close everything down and restart
        doTearDown();
        doSetUp();
        MessageProducer producer = localSession.createProducer(included);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            Message test = localSession.createTextMessage("test-" + i);
            producer.send(test);
        }
        Thread.sleep(1000);
        // close everything down and restart
        doTearDown();
        doSetUp();
        remoteConsumer = remoteSession.createDurableSubscriber(included, consumerName);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            assertNotNull("message count: " + i, remoteConsumer.receive(2500));
        }
    }

    public void testDurableStoreAndForwardReconnect() throws Exception {
        // create a local durable consumer
        MessageConsumer localConsumer = localSession.createDurableSubscriber(included, consumerName);
        Thread.sleep(1000);
        // now close everything down and restart
        doTearDown();
        doSetUp();
        // send messages
        MessageProducer producer = localSession.createProducer(included);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            Message test = localSession.createTextMessage("test-" + i);
            producer.send(test);
        }
        Thread.sleep(1000);
        // consume some messages locally
        localConsumer = localSession.createDurableSubscriber(included, consumerName);
        for (int i = 0; i < MESSAGE_COUNT / 2; i++) {
            assertNotNull("message count: " + i, localConsumer.receive(2500));
        }
        Thread.sleep(1000);
        // close everything down and restart
        doTearDown();
        doSetUp();
        // consume the rest remotely
        MessageConsumer remoteConsumer = remoteSession.createDurableSubscriber(included, consumerName);
        for (int i = 0; i < MESSAGE_COUNT / 2; i++) {
            assertNotNull("message count: " + i, remoteConsumer.receive(2500));
        }
    }    
    
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        doSetUp();
    }

    @Override
    protected void tearDown() throws Exception {
        localBroker.deleteAllMessages();
        remoteBroker.deleteAllMessages();
        doTearDown();
        super.tearDown();
    }

    protected void doTearDown() throws Exception {
        localConnection.close();
        remoteConnection.close();
        localBroker.stop();
        remoteBroker.stop();
    }

    protected void doSetUp() throws Exception {
        remoteBroker = createRemoteBroker();
        remoteBroker.start();
        localBroker = createLocalBroker();
        localBroker.start();
        URI localURI = localBroker.getVmConnectorURI();
        ActiveMQConnectionFactory fac = new ActiveMQConnectionFactory(localURI);
        fac.setAlwaysSyncSend(true);
        fac.setDispatchAsync(false);
        localConnection = fac.createConnection();
        localConnection.setClientID("local");
        localConnection.start();
        URI remoteURI = remoteBroker.getVmConnectorURI();
        fac = new ActiveMQConnectionFactory(remoteURI);
        remoteConnection = fac.createConnection();
        remoteConnection.setClientID("remote");
        remoteConnection.start();
        included = new ActiveMQTopic("include.test.bar");
        excluded = new ActiveMQTopic("exclude.test.bar");
        localSession = localConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        remoteSession = remoteConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    }

    protected String getRemoteBrokerURI() {
        return "org/apache/activemq/network/remoteBroker.xml";
    }

    protected String getLocalBrokerURI() {
        return "org/apache/activemq/network/localBroker.xml";
    }

    protected BrokerService createBroker(String uri) throws Exception {
        Resource resource = new ClassPathResource(uri);
        BrokerFactoryBean factory = new BrokerFactoryBean(resource);
        resource = new ClassPathResource(uri);
        factory = new BrokerFactoryBean(resource);
        factory.afterPropertiesSet();
        BrokerService result = factory.getBroker();
        return result;
    }

    protected BrokerService createLocalBroker() throws Exception {
        return createBroker(getLocalBrokerURI());
    }

    protected BrokerService createRemoteBroker() throws Exception {
        return createBroker(getRemoteBrokerURI());
    }
}

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