// The contents of this file are subject to the Mozilla Public License
// Version 1.1 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
// the License for the specific language governing rights and
// limitations under the License.
//
// The Original Code is RabbitMQ.
//
// The Initial Developer of the Original Code is VMware, Inc.
// Copyright (c) 2007-2012 VMware, Inc. All rights reserved.
//
package com.rabbitmq.examples;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class SimpleTopicProducer {
public static final String DEFAULT_TOPIC = "one.two.three.four";
public static void main(String[] args) {
try {
if (args.length < 1 || args.length > 4) {
System.err.print("Usage: SimpleTopicProducer brokeruri [topic\n" +
" [exchange\n" +
" [message]]]\n" +
"where\n" +
" - topic defaults to \""+DEFAULT_TOPIC+"\",\n" +
" - exchange defaults to \"amq.topic\", and\n" +
" - message defaults to a time-of-day message\n");
System.exit(1);
}
String uri = (args.length > 0) ? args[0] : "amqp://localhost";
String topic = (args.length > 1) ? args[1] : DEFAULT_TOPIC;
String exchange = (args.length > 2) ? args[2] : null;
String message = (args.length > 3) ? args[3] :
"the time is " + new java.util.Date().toString();
ConnectionFactory cfconn = new ConnectionFactory();
cfconn.setUri(uri);
Connection conn = cfconn.newConnection();
Channel ch = conn.createChannel();
if (exchange == null) {
exchange = "amq.topic";
} else {
ch.exchangeDeclare(exchange, "topic");
}
System.out.println("Sending to exchange " + exchange + ", topic " + topic);
ch.basicPublish(exchange, topic, null, message.getBytes());
ch.close();
conn.close();
} catch (Exception e) {
System.err.println("Main thread caught exception: " + e);
e.printStackTrace();
System.exit(1);
}
}
}