ActiveMQ example source code file (FailoverUpdateURIsTest.java)

This example ActiveMQ source code file (FailoverUpdateURIsTest.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, activemqconnectionfactory, brokerservice, brokerservice, connection, exception, file, fileoutputstream, io, message, message, messageconsumer, messageproducer, string, string, threading, threads

The ActiveMQ FailoverUpdateURIsTest.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.failover;

import java.io.File;
import java.io.FileOutputStream;
import java.util.concurrent.TimeUnit;
import javax.jms.Connection;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.network.NetworkConnector;
import org.apache.log4j.Logger;

public class FailoverUpdateURIsTest extends TestCase {

    private static final String QUEUE_NAME = "test.failoverupdateuris";
    private static final Logger LOG = Logger.getLogger(FailoverUpdateURIsTest.class);

    String firstTcpUri = "tcp://localhost:61616";
    String secondTcpUri = "tcp://localhost:61626";
    Connection connection = null;
    BrokerService bs2 = null;

    public void tearDown() throws Exception {
        if (connection != null) {
            connection.close();
        }
        if (bs2 != null) {
            bs2.stop();
        }
    }

    public void testUpdateURIsViaFile() throws Exception {

        String targetDir = "target/" + getName();
        new File(targetDir).mkdir();
        File updateFile = new File(targetDir + "/updateURIsFile.txt");
        LOG.info(updateFile);
        LOG.info(updateFile.toURI());
        LOG.info(updateFile.getAbsoluteFile());
        LOG.info(updateFile.getAbsoluteFile().toURI());
        FileOutputStream out = new FileOutputStream(updateFile);
        out.write(firstTcpUri.getBytes());
        out.close();

        BrokerService bs1 = createBroker("bs1", firstTcpUri);
        bs1.start();

        // no failover uri's to start with, must be read from file...
        ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:()?updateURIsURL=file:///" + updateFile.getAbsoluteFile());
        connection = cf.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Queue theQueue = session.createQueue(QUEUE_NAME);
        MessageProducer producer = session.createProducer(theQueue);
        MessageConsumer consumer = session.createConsumer(theQueue);
        Message message = session.createTextMessage("Test message");
        producer.send(message);
        Message msg = consumer.receive(2000);
        assertNotNull(msg);

        bs1.stop();
        bs1.waitUntilStopped();

        bs2 = createBroker("bs2", secondTcpUri);
        bs2.start();

        // add the transport uri for broker number 2
        out = new FileOutputStream(updateFile, true);
        out.write(",".getBytes());
        out.write(secondTcpUri.toString().getBytes());
        out.close();

        producer.send(message);
        msg = consumer.receive(2000);
        assertNotNull(msg);
    }

    private BrokerService createBroker(String name, String tcpUri) throws Exception {
        BrokerService bs = new BrokerService();
        bs.setBrokerName(name);
        bs.setUseJmx(false);
        bs.setPersistent(false);
        bs.addConnector(tcpUri);
        return bs;
    }

    public void testAutoUpdateURIs() throws Exception {

        BrokerService bs1 = new BrokerService();
        bs1.setUseJmx(false);
        TransportConnector transportConnector = bs1.addConnector(firstTcpUri);
        transportConnector.setUpdateClusterClients(true);
        bs1.start();

        ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("failover:(" + firstTcpUri + ")");
        Connection connection = cf.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Queue theQueue = session.createQueue(QUEUE_NAME);
        MessageProducer producer = session.createProducer(theQueue);
        MessageConsumer consumer = session.createConsumer(theQueue);
        Message message = session.createTextMessage("Test message");
        producer.send(message);
        Message msg = consumer.receive(4000);
        assertNotNull(msg);

        bs2 = createBroker("bs2", secondTcpUri);
        NetworkConnector networkConnector = bs2.addNetworkConnector("static:(" + firstTcpUri + ")");
        networkConnector.setDuplex(true);
        bs2.start();
        LOG.info("started brokerService 2");
        bs2.waitUntilStarted();

        TimeUnit.SECONDS.sleep(4);

        LOG.info("stopping brokerService 1");
        bs1.stop();
        bs1.waitUntilStopped();

        producer.send(message);
        msg = consumer.receive(4000);
        assertNotNull(msg);
    }
}