JMS Sender - Java Message

Java examples for Message:JMS

  1. HOME
  2. Java
  3. Message
  4. JMS

Description

JMS Sender

Demo Code

/**//from   w ww  .  j  a va2s. c om
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 com.redhat.workshop.amq7.streammessage;

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.naming.InitialContext;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Random;

import org.apache.activemq.artemis.utils.RandomUtil;

public class Sender {

    private static final long FILE_SIZE = 1L;//1 GiB message

    public static void main(String args[]) {
        try {
            File inputFile = new File("huge_message_to_send.dat");

            createFile(inputFile, FILE_SIZE);

            InitialContext context = new InitialContext();

            Queue queue = (Queue) context.lookup("queue/exampleQueue");

            ConnectionFactory cf = (ConnectionFactory) context
                    .lookup("ConnectionFactory");

            try (Connection connection = cf.createConnection();) {
                Session session = connection.createSession(false,
                        Session.AUTO_ACKNOWLEDGE);
                MessageProducer producer = session.createProducer(queue);
                BytesMessage bytesMessage = session.createBytesMessage();
                FileInputStream fileInputStream = new FileInputStream(
                        inputFile);
                BufferedInputStream bufferedInput = new BufferedInputStream(
                        fileInputStream);
                bytesMessage.setObjectProperty("JMS_AMQ_InputStream",
                        bufferedInput);
                producer.send(bytesMessage);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void createFile(final File file, final long fileSize)
            throws IOException {
        FileOutputStream fileOut = new FileOutputStream(file);
        try (BufferedOutputStream buffOut = new BufferedOutputStream(
                fileOut)) {

            // Sends a 10MB file
            for (int r = 0; r < 10 * 1024; r++) {
                for (long c = 0; c < 1023; c++) {
                    buffOut.write(RandomUtil.randomChar());
                }
                buffOut.write('\n');
            }
        }
    }
}

Related Tutorials