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ActiveMQ example source code file (AMQ1687Test.java)

This example ActiveMQ source code file (AMQ1687Test.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, activemqqueue, activemqtopic, connection, consumerbean, consumerbean, embeddedbrokertestsupport, exception, exception, messageconsumer, messageproducer, override, string, string

The ActiveMQ AMQ1687Test.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.bugs;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.spring.ConsumerBean;

/**
 * 
 * 
 */
public class AMQ1687Test extends EmbeddedBrokerTestSupport {

    private Connection connection;

    @Override
    protected ConnectionFactory createConnectionFactory() throws Exception {
        //prefetch change is not required, but test will not fail w/o it, only spew errors in the AMQ log.
        return new ActiveMQConnectionFactory(this.bindAddress+"?jms.prefetchPolicy.all=5");
        //return super.createConnectionFactory();
        //return new ActiveMQConnectionFactory("tcp://localhost:61616");
    }
    
    public void testVirtualTopicCreation() throws Exception {
        if (connection == null) {
            connection = createConnection();
        }
        connection.start();

        ConsumerBean messageList = new ConsumerBean();
        messageList.setVerbose(true);
        
        String queueAName = getVirtualTopicConsumerName();
        String queueBName = getVirtualTopicConsumerNameB();
        
        // create consumer 'cluster'
        ActiveMQQueue queue1 = new ActiveMQQueue(queueAName);
        ActiveMQQueue queue2 = new ActiveMQQueue(queueBName);

        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageConsumer c1 = session.createConsumer(queue1);
        MessageConsumer c2 = session.createConsumer(queue2);

        c1.setMessageListener(messageList);
        c2.setMessageListener(messageList);

        // create topic producer
        ActiveMQTopic topic = new ActiveMQTopic(getVirtualTopicName());
        MessageProducer producer = session.createProducer(topic);
        assertNotNull(producer);

        int total = 100;
        for (int i = 0; i < total; i++) {
            producer.send(session.createTextMessage("message: " + i));
        }
        
        messageList.assertMessagesArrived(total*2);
    }


    protected String getVirtualTopicName() {
        return "VirtualTopic.TEST";
    }


    protected String getVirtualTopicConsumerName() {
        return "Consumer.A.VirtualTopic.TEST";
    }

    protected String getVirtualTopicConsumerNameB() {
        return "Consumer.B.VirtualTopic.TEST";
    }
    
    
    protected void setUp() throws Exception {
        this.bindAddress="tcp://localhost:61616";
        super.setUp();
    }
    protected void tearDown() throws Exception {
        if (connection != null) {
            connection.close();
        }
        super.tearDown();
    }
}

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