ActiveMQ example source code file (MessageReroutingTest.java)

This example ActiveMQ source code file (MessageReroutingTest.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

activemqqueue, activemqtopic, classpathresource, classpathresource, didn't, exception, exception, logger, message_count, message_count, messageconsumer, messagereroutingtest, test, test

The ActiveMQ MessageReroutingTest.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 javax.jms.Destination;
import javax.jms.MessageConsumer;

import junit.framework.Test;

import org.apache.activemq.JmsMultipleBrokersTestSupport;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.util.MessageIdList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ClassPathResource;

public class MessageReroutingTest extends JmsMultipleBrokersTestSupport {
    private static final transient Logger LOG = LoggerFactory.getLogger(MessageReroutingTest.class);
    
    
    public Destination dest;
    public static final int MESSAGE_COUNT = 50;

    protected void setUp() throws Exception {
        super.setAutoFail(true);
        super.setUp();
        
        createBroker(new ClassPathResource("org/apache/activemq/usecases/rerouting-activemq-D.xml"));
        createBroker(new ClassPathResource("org/apache/activemq/usecases/rerouting-activemq-C.xml"));
        createBroker(new ClassPathResource("org/apache/activemq/usecases/rerouting-activemq-B.xml"));
        createBroker(new ClassPathResource("org/apache/activemq/usecases/rerouting-activemq-A.xml"));

        brokers.get("broker-A").broker.waitUntilStarted();
    }
    
    public void initCombos() {
        addCombinationValues("dest", new Object[] {new ActiveMQQueue("TEST"), new ActiveMQTopic("TEST")});
    }
    
    public void testMessageRerouting() throws Exception {
        MessageConsumer consumer = createConsumer("broker-D", dest);
        
        MessageIdList received = getConsumerMessages("broker-D", consumer);
        
        Thread.sleep(2000); //wait for subs to propagate

        // send/receive messages
        sendMessages("broker-A", dest, MESSAGE_COUNT);
        received.waitForMessagesToArrive(MESSAGE_COUNT);
        LOG.info("received " +  received.getMessageCount() + " messages");
        assertEquals(MESSAGE_COUNT, received.getMessageCount());
        
        brokers.get("broker-B").broker.stop();
        brokers.get("broker-B").broker.waitUntilStopped();
        Thread.sleep(2000);
        
        // ensure send/receive still works
        sendMessages("broker-A", dest, MESSAGE_COUNT);
        received.waitForMessagesToArrive(MESSAGE_COUNT);
        LOG.info("received " +  received.getMessageCount() + " messages");
        assertTrue("Didn't receive any more messages " + received.getMessageCount(), received.getMessageCount() > MESSAGE_COUNT);
        
        
    }

    
    public static Test suite() {
        return suite(MessageReroutingTest.class);
    }
    
    
}