ActiveMQ example source code file (PerfProducer.java)

This example ActiveMQ source code file (PerfProducer.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

connection, countdownlatch, countdownlatch, destination, jmsexception, jmsexception, messageproducer, perfproducer, perfproducer, perfrate, perfrate, producer, session, thread, threading, threads

The ActiveMQ PerfProducer.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.perf;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;

/**
 * 
 */
public class PerfProducer implements Runnable {
    protected Connection connection;
    protected MessageProducer producer;
    protected PerfRate rate = new PerfRate();
    private final byte[] payload;
    private Session session;
    private final CountDownLatch stopped = new CountDownLatch(1);
    private boolean running;
    private final boolean transacted;
    private int sleep = 0;

    public PerfProducer(ConnectionFactory fac, Destination dest, byte[] payload) throws JMSException {
        this(fac, dest, payload, false);
    }
    public PerfProducer(ConnectionFactory fac, Destination dest, byte[] payload, boolean transacted)
            throws JMSException {
        connection = fac.createConnection();
        this.transacted = transacted;
        if (transacted) {
            session = connection.createSession(true, Session.SESSION_TRANSACTED);
        } else {
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        }
        producer = session.createProducer(dest);
        this.payload = payload;
       
    }

    public void setDeliveryMode(int mode) throws JMSException {
        producer.setDeliveryMode(mode);
    }

    public void setTimeToLive(int ttl) throws JMSException {
        producer.setTimeToLive(ttl);
    }

    public void shutDown() throws JMSException {
        connection.close();
    }

    public PerfRate getRate() {
        return rate;
    }

    public synchronized void start() throws JMSException {
        if (!running) {
            rate.reset();
            running = true;
            connection.start();
            Thread t = new Thread(this);
            t.setName("Producer");
            t.start();
        }
    }

    public void stop() throws JMSException, InterruptedException {
        synchronized (this) {
            running = false;
        }
        stopped.await(1, TimeUnit.SECONDS);
        connection.stop();
    }

    public synchronized boolean isRunning() {
        return running;
    }

    public void run() {
        try {
            while (isRunning()) {
                BytesMessage msg;
                msg = session.createBytesMessage();
                msg.writeBytes(payload);
                producer.send(msg);
                if(this.transacted) {
                    this.session.commit();
                }
                rate.increment();
                if (sleep > 0) {
                    Thread.sleep(sleep);
                }
            }
        } catch (Throwable e) {
            e.printStackTrace();
        } finally {
            stopped.countDown();
        }
    }

    public int getSleep() {
        return sleep;
    }

    public void setSleep(int sleep) {
        this.sleep = sleep;
    }

}