ActiveMQ example source code file (TopicBridgeSpringTest.java)

This example ActiveMQ source code file (TopicBridgeSpringTest.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

abstractapplicationcontext, exception, jmsexception, logger, message_count, message_count, messageconsumer, textmessage, textmessage, topicconnection, topicrequestor, topicrequestor, topicsession, topicsession

The ActiveMQ TopicBridgeSpringTest.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.jms;

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.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicRequestor;
import javax.jms.TopicSession;
import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TopicBridgeSpringTest extends TestCase implements MessageListener {

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

    protected AbstractApplicationContext context;
    protected TopicConnection localConnection;
    protected TopicConnection remoteConnection;
    protected TopicRequestor requestor;
    protected TopicSession requestServerSession;
    protected MessageConsumer requestServerConsumer;
    protected MessageProducer requestServerProducer;

    protected void setUp() throws Exception {

        super.setUp();
        context = createApplicationContext();
        ActiveMQConnectionFactory fac = (ActiveMQConnectionFactory)context.getBean("localFactory");
        localConnection = fac.createTopicConnection();
        localConnection.start();
        requestServerSession = localConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic theTopic = requestServerSession.createTopic(getClass().getName());
        requestServerConsumer = requestServerSession.createConsumer(theTopic);
        requestServerConsumer.setMessageListener(this);
        requestServerProducer = requestServerSession.createProducer(null);

        fac = (ActiveMQConnectionFactory)context.getBean("remoteFactory");
        remoteConnection = fac.createTopicConnection();
        remoteConnection.start();
        TopicSession session = remoteConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        requestor = new TopicRequestor(session, theTopic);
    }

    protected AbstractApplicationContext createApplicationContext() {
        return new ClassPathXmlApplicationContext("org/apache/activemq/network/jms/topic-spring.xml");
    }

    protected void tearDown() throws Exception {
        localConnection.close();
        super.tearDown();
    }

    public void testTopicRequestorOverBridge() throws JMSException {
        for (int i = 0; i < MESSAGE_COUNT; i++) {
            TextMessage msg = requestServerSession.createTextMessage("test msg: " + i);
            LOG.info("Making request: " + msg);
            TextMessage result = (TextMessage)requestor.request(msg);
            assertNotNull(result);
            LOG.info("Received result: " + result.getText());
        }
    }

    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);
            LOG.info("Sending response: " + textMsg);
            requestServerProducer.send(replyTo, textMsg);
        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}