ActiveMQ example source code file (DefaultQueueSender.java)

This example ActiveMQ source code file (DefaultQueueSender.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

connecting, connection, defaultqueuesender, defaultqueuesender, hello, jmsexception, jmsexception, logger, message, messageproducer, queue, session, string, string

The ActiveMQ DefaultQueueSender.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.
 */

/**
 * The SimpleQueueSender class consists only of a main method,
 * which sends several messages to a queue.
 *
 * Run this program in conjunction with SimpleQueueReceiver.
 * Specify a queue name on the command line when you run the
 * program.  By default, the program sends one message.  Specify
 * a number after the queue name to send that number of messages.
 */
package org.apache.activemq.demo;

// START SNIPPET: demo

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A simple queue sender which does not use JNDI
 * 
 * 
 */
public final class DefaultQueueSender {

    private static final Logger LOG = LoggerFactory.getLogger(DefaultQueueSender.class);

    private DefaultQueueSender() {    
    }

    public static void main(String[] args) {

        String uri = "tcp://localhost:61616";
        String text = "Hello World!";

        Connection connection = null;

        if (args.length < 1) {
            printUsage();
            System.exit(1);
        }

        int idx = 0;
        String arg = args[0];
        if (arg.equals("-uri")) {
            if (args.length == 1) {
                printUsage();
                System.exit(1);
            }
            uri = args[1];
            idx += 2;
        }
        String queueName = args[idx];
        LOG.info("Connecting to: " + uri);
        LOG.info("Queue name is " + queueName);

        if (++idx < args.length) {
            text = args[idx];
        }

        try {
            ConnectionFactory factory = new ActiveMQConnectionFactory(uri);
            connection = factory.createConnection();
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            Destination destination = session.createQueue(queueName);
            MessageProducer producer = session.createProducer(destination);

            Message message = session.createTextMessage(text);
            producer.send(message);
        } catch (JMSException e) {
            LOG.info("Exception occurred: " + e.toString());
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (JMSException e) {
                }
            }
        }
    }

    protected static void printUsage() {
        System.out.println("Usage: java DefaultQueueSender [-uri <connection-uri>] " + " []");
    }
}

// END SNIPPET: demo