alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

ActiveMQ example source code file (NetworkFailoverTest.java)

This example ActiveMQ source code file (NetworkFailoverTest.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, activemqqueue, brokerfactorybean, brokerservice, brokerservice, classpathresource, exception, exception, io, messageconsumer, string, string, textmessage, textmessage, transportfilter

The ActiveMQ NetworkFailoverTest.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.io.IOException;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.transport.TransportFilter;
import org.apache.activemq.transport.failover.FailoverTransport;
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 NetworkFailoverTest extends TestCase {

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

    protected AbstractApplicationContext context;
    protected Connection localConnection;
    protected Connection remoteConnection;
    protected BrokerService localBroker;
    protected BrokerService remoteBroker;
    protected Session localSession;
    protected Session remoteSession;
    protected ActiveMQQueue included=new ActiveMQQueue("include.test.foo");
    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 (Exception e) {
                    e.printStackTrace();
                } 
            }
        });

        Queue tempQueue = localSession.createTemporaryQueue();
        MessageProducer requestProducer = localSession.createProducer(included);
        requestProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        MessageConsumer requestConsumer = localSession.createConsumer(tempQueue);
       
        // allow for consumer infos to perculate arround
        Thread.sleep(2000);
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            String payload = "test msg " + i;
            TextMessage msg = localSession.createTextMessage(payload);
            msg.setJMSReplyTo(tempQueue);
            requestProducer.send(msg);
            LOG.info("Failing over");
            ((FailoverTransport) ((TransportFilter) ((TransportFilter) 
                    ((ActiveMQConnection) localConnection)
                    .getTransport()).getNext()).getNext())
                    .handleTransportFailure(new IOException());
            TextMessage result = (TextMessage)requestConsumer.receive();
            assertNotNull(result);
            
            LOG.info(result.getText());
        }
    }

    

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

    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();
        String localURI = "tcp://localhost:61616";
        String remoteURI = "tcp://localhost:61617";
        ActiveMQConnectionFactory fac = new ActiveMQConnectionFactory("failover:("+localURI+","+remoteURI+"?trackMessages=true)?randomize=false&backup=true");
        //ActiveMQConnectionFactory fac = new ActiveMQConnectionFactory(localURI);
        localConnection = fac.createConnection();
        localConnection.setClientID("local");
        localConnection.start();
        fac = new ActiveMQConnectionFactory("failover:("+remoteURI + ","+localURI+")?randomize=false&backup=true");
        fac.setWatchTopicAdvisories(false);
        remoteConnection = fac.createConnection();
        remoteConnection.setClientID("remote");
        remoteConnection.start();
      
        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());
    }
}

Other ActiveMQ examples (source code examples)

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

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.