/* | |
* 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. | |
*/ | |
using System; | |
using System.Text; | |
using org.apache.qpid.client; | |
namespace org.apache.qpid.example.pubsub | |
{ | |
/// <summary> | |
/// This program is one of two programs designed to be used | |
/// together. These programs use the topic exchange. | |
/// | |
/// Publisher (this program): | |
/// | |
/// Publishes to a broker, specifying a routing key. | |
/// | |
/// Listener: | |
/// | |
/// Reads from a queue on the broker using a message listener. | |
/// | |
/// </summary> | |
internal class Publisher | |
{ | |
private static void Main(string[] args) | |
{ | |
string host = args.Length > 0 ? args[0] : "localhost"; | |
int port = args.Length > 1 ? Convert.ToInt32(args[1]) : 5672; | |
Client connection = new Client(); | |
try | |
{ | |
connection.connect(host, port, "test", "guest", "guest"); | |
ClientSession session = connection.createSession(50000); | |
//--------- Main body of program -------------------------------------------- | |
publishMessages(session, "usa.news"); | |
publishMessages(session, "usa.weather"); | |
publishMessages(session, "europe.news"); | |
publishMessages(session, "europe.weather"); | |
noMoreMessages(session); | |
//----------------------------------------------------------------------------- | |
connection.close(); | |
} | |
catch (Exception e) | |
{ | |
Console.WriteLine("Error: \n" + e.StackTrace); | |
} | |
} | |
private static void publishMessages(ClientSession session, string routing_key) | |
{ | |
IMessage message = new Message(); | |
// Asynchronous transfer sends messages as quickly as | |
// possible without waiting for confirmation. | |
for (int i = 0; i < 10; i++) | |
{ | |
message.clearData(); | |
message.appendData(Encoding.UTF8.GetBytes("Message " + i)); | |
session.messageTransfer("amq.topic", routing_key, message); | |
} | |
} | |
private static void noMoreMessages(ClientSession session) | |
{ | |
IMessage message = new Message(); | |
// And send a syncrhonous final message to indicate termination. | |
message.clearData(); | |
message.appendData(Encoding.UTF8.GetBytes("That's all, folks!")); | |
session.messageTransfer("amq.topic", "control", message); | |
session.sync(); | |
} | |
} | |
} |