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ActiveMQ example source code file (ProducerTool.java)

This example ActiveMQ source code file (ProducerTool.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

activemqconnection, activemqconnectionfactory, arraylist, date, exception, exception, messageproducer, object, object, producertool, producertool, string, string, stringbuffer, util

The ActiveMQ ProducerTool.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.
 */
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.util.IndentPrinter;

/**
 * A simple tool for publishing messages
 * 
 * 
 */
public class ProducerTool extends Thread {

    private Destination destination;
    private int messageCount = 10;
    private long sleepTime;
    private boolean verbose = true;
    private int messageSize = 255;
    private static int parallelThreads = 1;
    private long timeToLive;
    private String user = ActiveMQConnection.DEFAULT_USER;
    private String password = ActiveMQConnection.DEFAULT_PASSWORD;
    private String url = ActiveMQConnection.DEFAULT_BROKER_URL;
    private String subject = "TOOL.DEFAULT";
    private boolean topic;
    private boolean transacted;
    private boolean persistent;
    private static Object lockResults = new Object();

    public static void main(String[] args) {
        ArrayList<ProducerTool> threads = new ArrayList();
        ProducerTool producerTool = new ProducerTool();
        String[] unknown = CommandLineSupport.setOptions(producerTool, args);
        if (unknown.length > 0) {
            System.out.println("Unknown options: " + Arrays.toString(unknown));
            System.exit(-1);
        }
        producerTool.showParameters();
        for (int threadCount = 1; threadCount <= parallelThreads; threadCount++) {
            producerTool = new ProducerTool();
            CommandLineSupport.setOptions(producerTool, args);
            producerTool.start();
            threads.add(producerTool);
        }

        while (true) {
            Iterator<ProducerTool> itr = threads.iterator();
            int running = 0;
            while (itr.hasNext()) {
                ProducerTool thread = itr.next();
                if (thread.isAlive()) {
                    running++;
                }
            }
            if (running <= 0) {
                System.out.println("All threads completed their work");
                break;
            }
            try {
                Thread.sleep(1000);
            } catch (Exception e) {
            }
        }
    }

    public void showParameters() {
        System.out.println("Connecting to URL: " + url);
        System.out.println("Publishing a Message with size " + messageSize + " to " + (topic ? "topic" : "queue") + ": " + subject);
        System.out.println("Using " + (persistent ? "persistent" : "non-persistent") + " messages");
        System.out.println("Sleeping between publish " + sleepTime + " ms");
        System.out.println("Running " + parallelThreads + " parallel threads");

        if (timeToLive != 0) {
            System.out.println("Messages time to live " + timeToLive + " ms");
        }
    }

    public void run() {
        Connection connection = null;
        try {
            // Create the connection.
            ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
            connection = connectionFactory.createConnection();
            connection.start();

            // Create the session
            Session session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
            if (topic) {
                destination = session.createTopic(subject);
            } else {
                destination = session.createQueue(subject);
            }

            // Create the producer.
            MessageProducer producer = session.createProducer(destination);
            if (persistent) {
                producer.setDeliveryMode(DeliveryMode.PERSISTENT);
            } else {
                producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            }
            if (timeToLive != 0) {
                producer.setTimeToLive(timeToLive);
            }

            // Start sending messages
            sendLoop(session, producer);

            System.out.println("[" + this.getName() + "] Done.");

            synchronized (lockResults) {
                ActiveMQConnection c = (ActiveMQConnection) connection;
                System.out.println("[" + this.getName() + "] Results:\n");
                c.getConnectionStats().dump(new IndentPrinter());
            }

        } catch (Exception e) {
            System.out.println("[" + this.getName() + "] Caught: " + e);
            e.printStackTrace();
        } finally {
            try {
                connection.close();
            } catch (Throwable ignore) {
            }
        }
    }

    protected void sendLoop(Session session, MessageProducer producer) throws Exception {

        for (int i = 0; i < messageCount || messageCount == 0; i++) {

            TextMessage message = session.createTextMessage(createMessageText(i));

            if (verbose) {
                String msg = message.getText();
                if (msg.length() > 50) {
                    msg = msg.substring(0, 50) + "...";
                }
                System.out.println("[" + this.getName() + "] Sending message: '" + msg + "'");
            }

            producer.send(message);

            if (transacted) {
                System.out.println("[" + this.getName() + "] Committing " + messageCount + " messages");
                session.commit();
            }
            Thread.sleep(sleepTime);
        }
    }

    private String createMessageText(int index) {
        StringBuffer buffer = new StringBuffer(messageSize);
        buffer.append("Message: " + index + " sent at: " + new Date());
        if (buffer.length() > messageSize) {
            return buffer.substring(0, messageSize);
        }
        for (int i = buffer.length(); i < messageSize; i++) {
            buffer.append(' ');
        }
        return buffer.toString();
    }

    public void setPersistent(boolean durable) {
        this.persistent = durable;
    }

    public void setMessageCount(int messageCount) {
        this.messageCount = messageCount;
    }

    public void setMessageSize(int messageSize) {
        this.messageSize = messageSize;
    }

    public void setPassword(String pwd) {
        this.password = pwd;
    }

    public void setSleepTime(long sleepTime) {
        this.sleepTime = sleepTime;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    public void setTimeToLive(long timeToLive) {
        this.timeToLive = timeToLive;
    }

    public void setParallelThreads(int parallelThreads) {
        if (parallelThreads < 1) {
            parallelThreads = 1;
        }
        this.parallelThreads = parallelThreads;
    }

    public void setTopic(boolean topic) {
        this.topic = topic;
    }

    public void setQueue(boolean queue) {
        this.topic = !queue;
    }

    public void setTransacted(boolean transacted) {
        this.transacted = transacted;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public void setUser(String user) {
        this.user = user;
    }

    public void setVerbose(boolean verbose) {
        this.verbose = verbose;
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ ProducerTool.java source code file:

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