Merge pull request #88 from Pliner/fix_#52

Fix #52

Author: michaelklishin

projects/client/RabbitMQ.Client/RabbitMQ.Client.csproj

@@ -130,6 +130,7 @@
     <Compile Include="src\client\api\ConnectionFactory.cs" />
     <Compile Include="src\client\api\ConnectionFactoryBase.cs" />
     <Compile Include="src\client\api\DefaultBasicConsumer.cs" />
+    <Compile Include="src\client\api\Headers.cs" />
     <Compile Include="src\client\api\ExchangeType.cs" />
     <Compile Include="src\client\api\ExternalMechanism.cs" />
     <Compile Include="src\client\api\ExternalMechanismFactory.cs" />

projects/client/RabbitMQ.Client/src/client/api/Headers.cs

@@ -0,0 +1,103 @@
+// This source code is dual-licensed under the Apache License, version
+// 2.0, and the Mozilla Public License, version 1.1.
+//
+// The APL v2.0:
+//
+//---------------------------------------------------------------------------
+//   Copyright (C) 2007-2014 GoPivotal, Inc.
+//
+//   Licensed 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.
+//---------------------------------------------------------------------------
+//
+// The MPL v1.1:
+//
+//---------------------------------------------------------------------------
+//  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 GoPivotal, Inc.
+//  Copyright (c) 2007-2014 GoPivotal, Inc.  All rights reserved.
+//---------------------------------------------------------------------------
+
+using System.Collections.Generic;
+
+namespace RabbitMQ.Client
+{
+    /// <summary>
+    /// Convenience class providing compile-time names for standard headers.
+    /// </summary>
+    /// <remarks>
+    /// Use the static members of this class as headers for the
+    /// arguments for Queue and Exchange declaration or Consumer creation. 
+    /// The broker may be extended with additional
+    /// headers that do not appear in this class.
+    /// </remarks>
+    public static class Headers
+    {
+        /// <summary>
+        /// Header used to declare priority queues and set maximum priority of a queue
+        /// </summary>
+        public const string QueueMaxPriority = "x-max-priority";
+
+        /// <summary>
+        /// Header used to limit maximum length of a queue in messages
+        /// </summary>
+        public const string QueueMaxLengthInMessages = "x-max-length";
+
+        /// <summary>
+        /// Header used to limit maximum length of a queue in bytes
+        /// </summary>
+        public const string QueueMaxLengthInBytes = "x-max-length-bytes";
+        
+        /// <summary>
+        /// Header used to set dead letter exchange for a queue
+        /// </summary>
+        public const string DeadLetterExchange = "x-dead-letter-exchange";
+        
+        /// <summary>
+        /// Header used to set dead letter routing key for a queue
+        /// </summary>
+        public const string DeadLetterRoutingKey = "x-dead-letter-routing-key";
+
+        /// <summary>
+        /// Header used to set ttl globaly to all messages in a queue
+        /// </summary>
+        public const string PerQueueMessageTtl = "x-message-ttl";
+
+        /// <summary>
+        /// Header used to set expiration for a queue
+        /// </summary>
+        public const string QueueExpires = "x-expires";
+
+
+        /// <summary>
+        /// Header used to set alternate exchange for an exchange
+        /// </summary>
+        public const string AlternateExchange = "alternate-exchange";
+
+
+        /// <summary>
+        /// Header used to set priority of consumer
+        /// </summary>
+        public const string ConsumerPriority = "x-priority";
+    }
+}

projects/client/Unit/src/unit/TestMessagePatternsSubscription.cs

@@ -55,7 +55,7 @@ protected void TestConcurrentIterationWithDrainer(Action<Subscription> action)
         {
             IDictionary<string, object> args = new Dictionary<string, object>
             {
-                {"x-message-ttl", 5000}
+                {Headers.PerQueueMessageTtl, 5000}
             };
             string queueDeclare = Model.QueueDeclare("", false, true, false, args);
             var subscription = new Subscription(Model, queueDeclare, false);
@@ -78,7 +78,7 @@ protected void TestSequentialIterationWithDrainer(Action<Subscription> action)
         {
             IDictionary<string, object> args = new Dictionary<string, object>
             {
-                {"x-message-ttl", 5000}
+                {Headers.PerQueueMessageTtl, 5000}
             };
             string queueDeclare = Model.QueueDeclare("", false, true, false, args);
             var subscription = new Subscription(Model, queueDeclare, false);