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/*
*
* 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.qpid.example.jmsexample.direct;
import java.util.Properties;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
/**
* Message producer example, sends message to a queue.
*/
public class Producer
{
/* Used in log output. */
private static final String CLASS = "Producer";
private int numMessages = 10;
private short deliveryMode = DeliveryMode.NON_PERSISTENT;
/**
* Create a Producer client.
*/
public Producer ()
{
}
/**
* Run the message producer example.
* @param args Command line arguments.
*/
public static void main(String[] args)
{
Producer producer = new Producer();
producer.runTest();
}
private void runTest()
{
try
{
// Load JNDI properties
Properties properties = new Properties();
properties.load(this.getClass().getResourceAsStream("direct.properties"));
//Create the initial context
Context ctx = new InitialContext(properties);
// look up destination
Destination destination = (Destination)ctx.lookup("directQueue");
// Lookup the connection factory
ConnectionFactory conFac = (ConnectionFactory)ctx.lookup("qpidConnectionfactory");
// create the connection
Connection connection = conFac.createConnection();
connection.setExceptionListener(new ExceptionListener()
{
public void onException(JMSException e)
{
e.printStackTrace();
}
});
// Create a session on the connection
// This session is a default choice of non-transacted and uses the auto acknowledge feature of a session.
System.out.println(CLASS + ": Creating a non-transacted, auto-acknowledged session");
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// lookup the queue
//Queue destination = session.createQueue(_queueName);
// Create a Message producer
System.out.println(CLASS + ": Creating a Message Producer");
MessageProducer messageProducer = session.createProducer(destination);
// Create a Message
TextMessage message;
System.out.println(CLASS + ": Creating a TestMessage to send to the destination");
// Loop to publish the requested number of messages.
for (int i = 1; i < numMessages + 1; i++)
{
// NOTE: We have NOT HAD TO START THE CONNECTION TO BEGIN SENDING messages,
// this is different to the consumer end as a CONSUMERS CONNECTIONS MUST BE STARTED BEFORE RECEIVING.
message = session.createTextMessage("Message " + i);
System.out.println(CLASS + ": Sending message: " + i);
messageProducer.send(message, deliveryMode, Message.DEFAULT_PRIORITY, Message.DEFAULT_TIME_TO_LIVE);
}
// And send a final message to indicate termination.
message = session.createTextMessage("That's all, folks!");
messageProducer.send(message, deliveryMode, Message.DEFAULT_PRIORITY, Message.DEFAULT_TIME_TO_LIVE);
// Close the connection to the broker
System.out.println(CLASS + ": Closing connection");
connection.close();
// Close the JNDI reference
System.out.println(CLASS + ": Closing JNDI context");
ctx.close();
}
catch (Exception exp)
{
System.err.println(CLASS + ": Caught an Exception: " + exp);
exp.printStackTrace();
}
}
}
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