package org.apache.qpid.example.amqpexample.pubsub;
/*
*
* 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.
*
*/
import org.apache.qpid.transport.Connection;
import org.apache.qpid.transport.DeliveryProperties;
import org.apache.qpid.transport.Header;
import org.apache.qpid.transport.MessageAcceptMode;
import org.apache.qpid.transport.MessageAcquireMode;
import org.apache.qpid.transport.Session;
public class TopicPublisher
{
public void publishMessages(Session session, String routing_key)
{
// Set the routing key once, we'll use the same routing key for all
// messages.
DeliveryProperties deliveryProps = new DeliveryProperties();
deliveryProps.setRoutingKey(routing_key);
for (int i=0; i<5; i++) {
session.messageTransfer("amq.topic", MessageAcceptMode.EXPLICIT, MessageAcquireMode.PRE_ACQUIRED,
new Header(deliveryProps), "Message " + i);
}
}
public void noMoreMessages(Session session)
{
session.messageTransfer("amq.topic", MessageAcceptMode.EXPLICIT, MessageAcquireMode.PRE_ACQUIRED,
new Header(new DeliveryProperties().setRoutingKey("control")),
"That's all, folks!");
}
public static void main(String[] args)
{
// Create connection
Connection con = new Connection();
con.connect("localhost", 5672, "test", "guest", "guest",false);
// Create session
Session session = con.createSession(0);
// Create an instance of the listener
TopicPublisher publisher = new TopicPublisher();
publisher.publishMessages(session, "usa.news");
publisher.publishMessages(session, "usa.weather");
publisher.publishMessages(session, "europe.news");
publisher.publishMessages(session, "europe.weather");
// confirm completion
session.sync();
//cleanup
session.close();
con.close();
}
}