class/System.Runtime.Remoting/System.Runtime.Remoting.Channels.Simple/SimpleClientTransportSink.cs

   1 //
   2 // System.Runtime.Remoting.Channels.Simple.SimpleClientTransportSink.cs
   3 //
   4 // Author: Dietmar Maurer (dietmar@ximian.com)
   5 //
   6 // 2002 (C) Copyright, Ximian, Inc.
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31 using System.IO;
  32 using System.Net.Sockets;
  33 using System.Runtime.Remoting.Messaging;
  34 using System.Runtime.Remoting.Channels;
  35
  36 namespace System.Runtime.Remoting.Channels.Simple
  37 {
  38
  39         internal class SimpleClientTransportSink : IClientChannelSink
  40         {
  41                 string host;
  42                 string object_uri;
  43                 int port;
  44
  45                 TcpClient tcpclient;
  46                 Stream network_stream;
  47
  48                 public SimpleClientTransportSink (string url)
  49                 {
  50                         host = SimpleChannel.ParseSimpleURL (url, out object_uri, out port);
  51                         tcpclient = new TcpClient ();
  52                 }
  53
  54                 public IDictionary Properties
  55                 {
  56                         get {
  57                                 return null;
  58                         }
  59                 }
  60
  61                 public IClientChannelSink NextChannelSink
  62                 {
  63                         get {
  64                                 // we are the last one
  65                                 return null;
  66                         }
  67                 }
  68
  69                 public void AsyncProcessRequest (IClientChannelSinkStack sinkStack, IMessage msg,
  70                                                  ITransportHeaders headers, Stream stream)
  71                 {
  72                         throw new NotImplementedException ();
  73                 }
  74
  75                 public void AsyncProcessResponse (IClientResponseChannelSinkStack sinkStack,
  76                                                   object state, ITransportHeaders headers,
  77                                                   Stream stream)
  78                 {
  79                         throw new NotImplementedException ();
  80                 }
  81
  82                 public Stream GetRequestStream (IMessage msg, ITransportHeaders headers)
  83                 {
  84                         // no direct access to the stream
  85                         return null;
  86                 }
  87
  88                 public void ProcessMessage (IMessage msg,
  89                                             ITransportHeaders requestHeaders,
  90                                             Stream requestStream,
  91                                             out ITransportHeaders responseHeaders,
  92                                             out Stream responseStream)
  93                 {
  94                         // get a network stream
  95                         if (network_stream == null) {
  96                                 tcpclient.Connect (host, port);
  97                                 network_stream = tcpclient.GetStream ();
  98                         }
  99
 100                         // send the message
 101                         SimpleMessageFormat.SendMessageStream (network_stream, (MemoryStream)requestStream,
 102                                                                SimpleMessageFormat.MessageType.Request,
 103                                                                object_uri);
 104
 105                         // read the response fro the network an copy it to a memory stream
 106                         SimpleMessageFormat.MessageType msg_type;
 107                         string uri;
 108                         MemoryStream mem_stream = SimpleMessageFormat.ReceiveMessageStream (network_stream, out msg_type, out uri);
 109
 110                         // close the stream
 111                         //tcpclient.Close ();
 112
 113                         switch (msg_type) {
 114                         case SimpleMessageFormat.MessageType.Response:
 115                                 //fixme: read response message
 116                                 responseHeaders = null;
 117
 118                                 responseStream = mem_stream;
 119
 120                                 break;
 121                         default:
 122                                 throw new Exception ("unknown response mesage header");
 123                         }
 124                 }
 125
 126         }
 127 }