1 // This source code is dual-licensed under the Apache License, version
2 // 2.0, and the Mozilla Public License, version 1.1.
6 //---------------------------------------------------------------------------
7 // Copyright (C) 2007, 2008 LShift Ltd., Cohesive Financial
8 // Technologies LLC., and Rabbit Technologies Ltd.
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
14 // http://www.apache.org/licenses/LICENSE-2.0
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 //---------------------------------------------------------------------------
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
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
36 // The Original Code is The RabbitMQ .NET Client.
38 // The Initial Developers of the Original Code are LShift Ltd.,
39 // Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd.
41 // Portions created by LShift Ltd., Cohesive Financial Technologies
42 // LLC., and Rabbit Technologies Ltd. are Copyright (C) 2007, 2008
43 // LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit
46 // All Rights Reserved.
48 // Contributor(s): ______________________________________.
50 //---------------------------------------------------------------------------
53 using RabbitMQ.Client;
55 namespace RabbitMQ.Client.Impl
57 /// <summary> Instances of RedirectException are thrown by
58 /// ConnectionBase.Open when the broker returns a
59 /// Connection.Redirect method. The ConnectionFactory catches the
60 /// exception and arranges for the redirect to take
62 public class RedirectException: Exception
64 public AmqpTcpEndpoint m_host;
65 public AmqpTcpEndpoint[] m_knownHosts;
67 ///<summary>The host we were redirected to. Try connecting to
68 ///this first.</summary>
69 public AmqpTcpEndpoint Host { get { return m_host; } }
71 ///<summary>Other hosts the broker knows about. If connecting
72 ///to Host fails, try some of these.</summary>
73 public AmqpTcpEndpoint[] KnownHosts { get { return m_knownHosts; } }
75 ///<summary>Uses AmqpTcpEndpoint.Parse and .ParseMultiple to
76 ///convert the strings, and then passes them to the other
77 ///overload of the constructor.</summary>
78 public RedirectException(IProtocol protocol,
81 : this(ParseHost(protocol, host),
82 AmqpTcpEndpoint.ParseMultiple(protocol, knownHosts))
85 public RedirectException(AmqpTcpEndpoint host, AmqpTcpEndpoint[] knownHosts)
86 : base(string.Format("The connection.open attempt was redirected to host '{0}'",
90 m_knownHosts = knownHosts;
93 ///<summary>Conservative extension to the spec, supporting
94 ///multiple interfaces in the "host" field of the
95 ///connection.redirect method.</summary>
97 /// We use ParseMultiple rather than Parse, because a single
98 /// host may have multiple interfaces. The spec doesn't say
99 /// what to do here, so this is a conservative extension (as
100 /// in, if a broker only returns a single address, we handle
101 /// that fine). We arbitrarily take the first element of the
104 public static AmqpTcpEndpoint ParseHost(IProtocol protocol, string host) {
105 AmqpTcpEndpoint[] addresses = AmqpTcpEndpoint.ParseMultiple(protocol, host);
106 if (addresses.Length == 0) {
107 return AmqpTcpEndpoint.Parse(protocol, "");
108 // ^^ effectively, a (kind of useless) default or null result