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| 1 | +// This source code is dual-licensed under the Apache License, version |
| 2 | +// 2.0, and the Mozilla Public License, version 1.1. |
| 3 | +// |
| 4 | +// The APL v2.0: |
| 5 | +// |
| 6 | +//--------------------------------------------------------------------------- |
| 7 | +// Copyright (C) 2007-2010 LShift Ltd., Cohesive Financial |
| 8 | +// Technologies LLC., and Rabbit Technologies Ltd. |
| 9 | +// |
| 10 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 11 | +// you may not use this file except in compliance with the License. |
| 12 | +// You may obtain a copy of the License at |
| 13 | +// |
| 14 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 15 | +// |
| 16 | +// Unless required by applicable law or agreed to in writing, software |
| 17 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 18 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 19 | +// See the License for the specific language governing permissions and |
| 20 | +// limitations under the License. |
| 21 | +//--------------------------------------------------------------------------- |
| 22 | +// |
| 23 | +// The MPL v1.1: |
| 24 | +// |
| 25 | +//--------------------------------------------------------------------------- |
| 26 | +// The contents of this file are subject to the Mozilla Public License |
| 27 | +// Version 1.1 (the "License"); you may not use this file except in |
| 28 | +// compliance with the License. You may obtain a copy of the License at |
| 29 | +// http://www.rabbitmq.com/mpl.html |
| 30 | +// |
| 31 | +// Software distributed under the License is distributed on an "AS IS" |
| 32 | +// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
| 33 | +// License for the specific language governing rights and limitations |
| 34 | +// under the License. |
| 35 | +// |
| 36 | +// The Original Code is The RabbitMQ .NET Client. |
| 37 | +// |
| 38 | +// The Initial Developers of the Original Code are LShift Ltd, |
| 39 | +// Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. |
| 40 | +// |
| 41 | +// Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, |
| 42 | +// Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd |
| 43 | +// are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial |
| 44 | +// Technologies LLC, and Rabbit Technologies Ltd. |
| 45 | +// |
| 46 | +// Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift |
| 47 | +// Ltd. Portions created by Cohesive Financial Technologies LLC are |
| 48 | +// Copyright (C) 2007-2010 Cohesive Financial Technologies |
| 49 | +// LLC. Portions created by Rabbit Technologies Ltd are Copyright |
| 50 | +// (C) 2007-2010 Rabbit Technologies Ltd. |
| 51 | +// |
| 52 | +// All Rights Reserved. |
| 53 | +// |
| 54 | +// Contributor(s): ______________________________________. |
| 55 | +// |
| 56 | +//--------------------------------------------------------------------------- |
| 57 | +using System; |
| 58 | +using System.Text; |
| 59 | + |
| 60 | +using RabbitMQ.Client; |
| 61 | +using RabbitMQ.Client.Events; |
| 62 | +using RabbitMQ.Client.MessagePatterns; |
| 63 | + |
| 64 | +namespace RabbitMQ.Client.Examples { |
| 65 | + public class Subscriber { |
| 66 | + public static int Main(string[] args) { |
| 67 | + if (args.Length < 1) { |
| 68 | + Console.Error.WriteLine("Usage: Subscriber <hostname>[:<port number>] [<message count>]"); |
| 69 | + Console.Error.WriteLine("RabbitMQ .NET client version "+typeof(IModel).Assembly.GetName().Version.ToString()); |
| 70 | + return 2; |
| 71 | + } |
| 72 | + |
| 73 | + string serverAddress = args[0]; |
| 74 | + long msgCount = (args.Length > 1) ? Convert.ToInt64(args[1]) : 10; |
| 75 | + ConnectionFactory cf = new ConnectionFactory(); |
| 76 | + cf.Address = serverAddress; |
| 77 | + using (IConnection conn = cf.CreateConnection()) { |
| 78 | + using (IModel ch = conn.CreateModel()) { |
| 79 | + string queueName = ensureQueue(ch); |
| 80 | + |
| 81 | + sendMessages(ch, queueName, 2*msgCount); |
| 82 | + using (Subscription sub = new Subscription(ch, queueName)) { |
| 83 | + blockingReceiveMessages(sub, msgCount); |
| 84 | + enumeratingReceiveMessages(sub, msgCount); |
| 85 | + } |
| 86 | + } |
| 87 | + } |
| 88 | + |
| 89 | + return 0; |
| 90 | + } |
| 91 | + |
| 92 | + private static void sendMessages(IModel ch, string queueName, long msgCount) { |
| 93 | + Console.WriteLine("Sending {0} messages to queue {1} via the amq.direct exchange.", msgCount, queueName); |
| 94 | + |
| 95 | + while (msgCount --> 0) { |
| 96 | + ch.BasicPublish("amq.direct", queueName, null, Encoding.UTF8.GetBytes("Welcome to Caerbannog!")); |
| 97 | + } |
| 98 | + |
| 99 | + Console.WriteLine("Done.\n"); |
| 100 | + } |
| 101 | + |
| 102 | + private static void blockingReceiveMessages(Subscription sub, long msgCount) { |
| 103 | + Console.WriteLine("Receiving {0} messages (using a Subscriber)", msgCount); |
| 104 | + |
| 105 | + for (int i = 0; i < msgCount; ++i) { |
| 106 | + Console.WriteLine("Message {0}: {1} (via Subscription.Next())", |
| 107 | + i, messageText(sub.Next())); |
| 108 | + Console.WriteLine("Message {0} again: {1} (via Subscription.LatestEvent)", |
| 109 | + i, messageText(sub.LatestEvent)); |
| 110 | + } |
| 111 | + |
| 112 | + Console.WriteLine("Done.\n"); |
| 113 | + } |
| 114 | + |
| 115 | + private static void enumeratingReceiveMessages(Subscription sub, long msgCount) { |
| 116 | + Console.WriteLine("Receiving {0} messages (using Subscriber's IEnumerator)", msgCount); |
| 117 | + |
| 118 | + int i = 0; |
| 119 | + foreach (BasicDeliverEventArgs ev in sub) { |
| 120 | + Console.WriteLine("Message {0}: {1}", |
| 121 | + i, messageText(ev)); |
| 122 | + if (++i == msgCount) |
| 123 | + break; |
| 124 | + } |
| 125 | + |
| 126 | + Console.WriteLine("Done.\n"); |
| 127 | + } |
| 128 | + |
| 129 | + private static string messageText(BasicDeliverEventArgs ev) { |
| 130 | + return Encoding.UTF8.GetString(ev.Body); |
| 131 | + } |
| 132 | + |
| 133 | + private static string ensureQueue(IModel ch) { |
| 134 | + Console.WriteLine("Creating a queue and binding it to amq.direct"); |
| 135 | + string queueName = ch.QueueDeclare(); |
| 136 | + ch.QueueBind(queueName, "amq.direct", queueName, false, null); |
| 137 | + Console.WriteLine("Done. Created queue {0}.\n", queueName); |
| 138 | + return queueName; |
| 139 | + } |
| 140 | + } |
| 141 | +} |
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