trunk/assembly/src/test/java/org/apache/activemq/benchmark/Consumer.java

/**
 * 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.benchmark;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

/**
 * @author James Strachan
 * 
 */
public class Consumer extends BenchmarkSupport implements MessageListener {

    public Consumer() {
    }

    public static void main(String[] args) {
        Consumer tool = new Consumer();
        if (args.length > 0) {
            tool.setUrl(args[0]);
        }
        if (args.length > 1) {
            tool.setTopic(parseBoolean(args[1]));
        }
        if (args.length > 2) {
            tool.setSubject(args[2]);
        }
        if (args.length > 3) {
            tool.setDurable(parseBoolean(args[3]));
        }
        if (args.length > 4) {
            tool.setConnectionCount(Integer.parseInt(args[4]));
        }

        try {
            tool.run();
        } catch (Exception e) {
            System.out.println("Caught: " + e);
            e.printStackTrace();
        }
    }

    public void run() throws JMSException {
        start();
        subscribe();
    }

    protected void subscribe() throws JMSException {
        for (int i = 0; i < subjects.length; i++) {
            subscribe(subjects[i]);
        }
    }

    protected void subscribe(String subject) throws JMSException {
        Session session = createSession();

        Destination destination = createDestination(session, subject);

        System.out.println("Consuming on : " + destination + " of type: " + destination.getClass().getName());

        MessageConsumer consumer = null;
        if (isDurable() && isTopic()) {
            consumer = session.createDurableSubscriber((Topic)destination, getClass().getName());
        } else {
            consumer = session.createConsumer(destination);
        }
        consumer.setMessageListener(this);
        addResource(consumer);
    }

    public void onMessage(Message message) {
        try {
            TextMessage textMessage = (TextMessage)message;

            // lets force the content to be deserialized
            textMessage.getText();
            count(1);

            // lets count the messages

            // message.acknowledge();
        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}