mcs/class/System.Runtime.Remoting/System.Runtime.Remoting.Channels.Tcp/TcpClientChannel.cs

   1 //
   2 // System.Runtime.Remoting.Channels.Tcp.TcpClientChannel.cs
   3 //
   4 // Author: Dietmar Maurer (dietmar@ximian.com)
   5 //         Lluis Sanchez Gual (lluis@ideary.com)
   6 //
   7 // 2002 (C) Copyright, Ximian, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Collections;
  32 using System.IO;
  33 using System.Net.Sockets;
  34 using System.Runtime.Remoting.Messaging;
  35 using System.Runtime.Remoting.Channels;
  36 using System.Threading;
  37
  38 namespace System.Runtime.Remoting.Channels.Tcp
  39 {
  40         public class TcpClientChannel : IChannelSender, IChannel
  41         {
  42                 int priority = 1;
  43                 string name = "tcp";
  44                 IClientChannelSinkProvider _sinkProvider;
  45
  46                 public TcpClientChannel ()
  47                 {
  48                         _sinkProvider = new BinaryClientFormatterSinkProvider ();
  49                         _sinkProvider.Next = new TcpClientTransportSinkProvider ();
  50                 }
  51
  52                 public TcpClientChannel (IDictionary properties, IClientChannelSinkProvider sinkProvider)
  53                 {
  54                         object val = properties ["name"];
  55                         if (val != null) name = val as string;
  56
  57                         val = properties ["priority"];
  58                         if (val != null) priority = Convert.ToInt32 (val);
  59
  60                         if (sinkProvider != null)
  61                         {
  62                                 _sinkProvider = sinkProvider;
  63
  64                                 // add the tcp provider at the end of the chain
  65                                 IClientChannelSinkProvider prov = sinkProvider;
  66                                 while (prov.Next != null) prov = prov.Next;
  67                                 prov.Next = new TcpClientTransportSinkProvider ();
  68
  69                                 // Note: a default formatter is added only when
  70                                 // no sink providers are specified in the config file.
  71                         }
  72                         else
  73                         {
  74                                 _sinkProvider = new BinaryClientFormatterSinkProvider ();
  75                                 _sinkProvider.Next = new TcpClientTransportSinkProvider ();
  76                         }
  77
  78                 }
  79
  80                 public TcpClientChannel (string name, IClientChannelSinkProvider sinkProvider)
  81                 {
  82                         this.name = name;
  83                         _sinkProvider = sinkProvider;
  84
  85                         // add the tcp provider at the end of the chain
  86                         IClientChannelSinkProvider prov = sinkProvider;
  87                         while (prov.Next != null) prov = prov.Next;
  88                         prov.Next = new TcpClientTransportSinkProvider ();
  89                 }
  90
  91                 public string ChannelName
  92                 {
  93                         get {
  94                                 return name;
  95                         }
  96                 }
  97
  98                 public int ChannelPriority
  99                 {
 100                         get {
 101                                 return priority;
 102                         }
 103                 }
 104
 105                 public virtual IMessageSink CreateMessageSink (string url,
 106                                                        object remoteChannelData,
 107                                                        out string objectURI)
 108             {
 109                         if (url != null && Parse (url, out objectURI) != null)
 110                                 return (IMessageSink) _sinkProvider.CreateSink (this, url, remoteChannelData);
 111
 112                         if (remoteChannelData != null) {
 113                                 IChannelDataStore ds = remoteChannelData as IChannelDataStore;
 114                                 if (ds != null && ds.ChannelUris.Length > 0)
 115                                         url = ds.ChannelUris [0];
 116                                 else {
 117                                         objectURI = null;
 118                                         return null;
 119                                 }
 120                         }
 121
 122                         if (Parse (url, out objectURI) == null)
 123                                 return null;
 124
 125                         return (IMessageSink) _sinkProvider.CreateSink (this, url, remoteChannelData);
 126                 }
 127
 128                 public string Parse (string url, out string objectURI)
 129                 {
 130                         return TcpChannel.ParseChannelUrl (url, out objectURI);
 131                 }
 132         }
 133 }