ActiveMQ example source code file (JmsProducerClient.java)

This example ActiveMQ source code file (JmsProducerClient.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

creating, jmsexception, jmsexception, jmsproducerclient, jmsproducerproperties, message, messageproducer, messageproducer, starting, string, text, text, textmessage, textmessage, util

The ActiveMQ JmsProducerClient.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.tool;

import java.util.Arrays;

import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.TextMessage;

import org.apache.activemq.tool.properties.JmsClientProperties;
import org.apache.activemq.tool.properties.JmsProducerProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class JmsProducerClient extends AbstractJmsMeasurableClient {
    private static final Logger LOG = LoggerFactory.getLogger(JmsProducerClient.class);

    protected JmsProducerProperties client;
    protected MessageProducer jmsProducer;
    protected TextMessage jmsTextMessage;

    public JmsProducerClient(ConnectionFactory factory) {
        this(new JmsProducerProperties(), factory);
    }

    public JmsProducerClient(JmsProducerProperties clientProps, ConnectionFactory factory) {
        super(factory);
        this.client = clientProps;
    }

    public void sendMessages() throws JMSException {
        // Send a specific number of messages
        if (client.getSendType().equalsIgnoreCase(JmsProducerProperties.COUNT_BASED_SENDING)) {
            sendCountBasedMessages(client.getSendCount());

        // Send messages for a specific duration
        } else {
            sendTimeBasedMessages(client.getSendDuration());
        }
    }

    public void sendMessages(int destCount) throws JMSException {
        this.destCount = destCount;
        sendMessages();
    }

    public void sendMessages(int destIndex, int destCount) throws JMSException {
        this.destIndex = destIndex;
        sendMessages(destCount);
    }

    public void sendCountBasedMessages(long messageCount) throws JMSException {
        // Parse through different ways to send messages
        // Avoided putting the condition inside the loop to prevent effect on performance
        Destination[] dest = createDestination(destIndex, destCount);

        // Create a producer, if none is created.
        if (getJmsProducer() == null) {
            if (dest.length == 1) {
                createJmsProducer(dest[0]);
            } else {
                createJmsProducer();
            }
        }
        try {
            getConnection().start();
            LOG.info("Starting to publish " + client.getMessageSize() + " byte(s) of " + messageCount + " messages...");

            // Send one type of message only, avoiding the creation of different messages on sending
            if (!client.isCreateNewMsg()) {
                // Create only a single message
                createJmsTextMessage();

                // Send to more than one actual destination
                if (dest.length > 1) {
                    for (int i = 0; i < messageCount; i++) {
                        for (int j = 0; j < dest.length; j++) {
                            getJmsProducer().send(dest[j], getJmsTextMessage());
                            incThroughput();
                            sleep();
                        }
                    }
                    // Send to only one actual destination
                } else {
                    for (int i = 0; i < messageCount; i++) {
                        getJmsProducer().send(getJmsTextMessage());
                        incThroughput();
                        sleep();
                    }
                }

                // Send different type of messages using indexing to identify each one.
                // Message size will vary. Definitely slower, since messages properties
                // will be set individually each send.
            } else {
                // Send to more than one actual destination
                if (dest.length > 1) {
                    for (int i = 0; i < messageCount; i++) {
                        for (int j = 0; j < dest.length; j++) {
                            getJmsProducer().send(dest[j], createJmsTextMessage("Text Message [" + i + "]"));
                            incThroughput();
                            sleep();
                        }
                    }

                    // Send to only one actual destination
                } else {
                    for (int i = 0; i < messageCount; i++) {
                        getJmsProducer().send(createJmsTextMessage("Text Message [" + i + "]"));
                        incThroughput();
                        sleep();
                    }
                }
            }
        } finally {
            getConnection().close();
        }
    }

    public void sendTimeBasedMessages(long duration) throws JMSException {
        long endTime = System.currentTimeMillis() + duration;
        // Parse through different ways to send messages
        // Avoided putting the condition inside the loop to prevent effect on performance

        Destination[] dest = createDestination(destIndex, destCount);

        // Create a producer, if none is created.
        if (getJmsProducer() == null) {
            if (dest.length == 1) {
                createJmsProducer(dest[0]);
            } else {
                createJmsProducer();
            }
        }

        try {
            getConnection().start();
            LOG.info("Starting to publish " + client.getMessageSize() + " byte(s) messages for " + duration + " ms");

            // Send one type of message only, avoiding the creation of different messages on sending
            if (!client.isCreateNewMsg()) {
                // Create only a single message
                createJmsTextMessage();

                // Send to more than one actual destination
                if (dest.length > 1) {
                    while (System.currentTimeMillis() < endTime) {
                        for (int j = 0; j < dest.length; j++) {
                            getJmsProducer().send(dest[j], getJmsTextMessage());
                            incThroughput();
                            sleep();
                        }
                    }
                    // Send to only one actual destination
                } else {
                    while (System.currentTimeMillis() < endTime) {
                        getJmsProducer().send(getJmsTextMessage());
                        incThroughput();
                        sleep();
                    }
                }

                // Send different type of messages using indexing to identify each one.
                // Message size will vary. Definitely slower, since messages properties
                // will be set individually each send.
            } else {
                // Send to more than one actual destination
                long count = 1;
                if (dest.length > 1) {
                    while (System.currentTimeMillis() < endTime) {
                        for (int j = 0; j < dest.length; j++) {
                            getJmsProducer().send(dest[j], createJmsTextMessage("Text Message [" + count++ + "]"));
                            incThroughput();
                            sleep();
                        }
                    }

                    // Send to only one actual destination
                } else {
                    while (System.currentTimeMillis() < endTime) {

                        getJmsProducer().send(createJmsTextMessage("Text Message [" + count++ + "]"));
                        incThroughput();
                        sleep();
                    }
                }
            }
        } finally {
            getConnection().close();
        }
    }

    public MessageProducer createJmsProducer() throws JMSException {
        jmsProducer = getSession().createProducer(null);
        if (client.getDeliveryMode().equalsIgnoreCase(JmsProducerProperties.DELIVERY_MODE_PERSISTENT)) {
            LOG.info("Creating producer to possible multiple destinations with persistent delivery.");
            jmsProducer.setDeliveryMode(DeliveryMode.PERSISTENT);
        } else if (client.getDeliveryMode().equalsIgnoreCase(JmsProducerProperties.DELIVERY_MODE_NON_PERSISTENT)) {
            LOG.info("Creating producer to possible multiple destinations with non-persistent delivery.");
            jmsProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        } else {
            LOG.warn("Unknown deliveryMode value. Defaulting to non-persistent.");
            jmsProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        }
        return jmsProducer;
    }

    public MessageProducer createJmsProducer(Destination dest) throws JMSException {
        jmsProducer = getSession().createProducer(dest);
        if (client.getDeliveryMode().equalsIgnoreCase(JmsProducerProperties.DELIVERY_MODE_PERSISTENT)) {
            LOG.info("Creating producer to: " + dest.toString() + " with persistent delivery.");
            jmsProducer.setDeliveryMode(DeliveryMode.PERSISTENT);
        } else if (client.getDeliveryMode().equalsIgnoreCase(JmsProducerProperties.DELIVERY_MODE_NON_PERSISTENT)) {
            LOG.info("Creating  producer to: " + dest.toString() + " with non-persistent delivery.");
            jmsProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        } else {
            LOG.warn("Unknown deliveryMode value. Defaulting to non-persistent.");
            jmsProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        }
        return jmsProducer;
    }

    public MessageProducer getJmsProducer() {
        return jmsProducer;
    }

    public TextMessage createJmsTextMessage() throws JMSException {
        return createJmsTextMessage(client.getMessageSize());
    }

    public TextMessage createJmsTextMessage(int size) throws JMSException {
        jmsTextMessage = getSession().createTextMessage(buildText("", size));
        return jmsTextMessage;
    }

    public TextMessage createJmsTextMessage(String text) throws JMSException {
        jmsTextMessage = getSession().createTextMessage(buildText(text, client.getMessageSize()));
        return jmsTextMessage;
    }

    public TextMessage getJmsTextMessage() {
        return jmsTextMessage;
    }

    public JmsClientProperties getClient() {
        return client;
    }

    public void setClient(JmsClientProperties clientProps) {
        client = (JmsProducerProperties)clientProps;
    }

    protected String buildText(String text, int size) {
        byte[] data = new byte[size - text.length()];
        Arrays.fill(data, (byte) 0);
        return text + new String(data);
    }
    
    protected void sleep() {
        if (client.getSendDelay() > 0) {
        	try {
        		LOG.trace("Sleeping for " + client.getSendDelay() + " milliseconds");
        		Thread.sleep(client.getSendDelay());
        	} catch (java.lang.InterruptedException ex) {
        		LOG.warn(ex.getMessage());
        	}
        }
    }
}