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

   1 //
   2 // System.Runtime.Remoting.Channels.Tcp.TcpChannel.cs
   3 //
   4 // Author: Rodrigo Moya (rodrigo@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.Runtime.Remoting.Messaging;
  33 using System.Text.RegularExpressions;
  34
  35 namespace System.Runtime.Remoting.Channels.Tcp
  36 {
  37         public class TcpChannel : IChannelReceiver, IChannel, IChannelSender
  38         {
  39                 private TcpClientChannel _clientChannel;
  40                 private TcpServerChannel _serverChannel = null;
  41                 private string _name = "tcp";
  42                 private int _priority = 1;
  43
  44                 public TcpChannel (): this (0)
  45         {
  46                 }
  47
  48                 public TcpChannel (int port)
  49                 {
  50                         Hashtable ht = new Hashtable();
  51                         ht["port"] = port.ToString();
  52                         Init(ht, null, null);
  53                 }
  54
  55                 void Init (IDictionary properties, IClientChannelSinkProvider clientSink, IServerChannelSinkProvider serverSink)
  56                 {
  57                         _clientChannel = new TcpClientChannel (properties,clientSink);
  58
  59                         if(properties["port"] != null)
  60                                 _serverChannel = new TcpServerChannel(properties, serverSink);
  61
  62                         object val = properties ["name"];
  63                         if (val != null) _name = val as string;
  64
  65                         val = properties ["priority"];
  66                         if (val != null) _priority = Convert.ToInt32 (val);
  67                 }
  68
  69
  70                 public TcpChannel (IDictionary properties,
  71                                    IClientChannelSinkProvider clientSinkProvider,
  72                                    IServerChannelSinkProvider serverSinkProvider)
  73                 {
  74                         Init (properties, clientSinkProvider, serverSinkProvider);
  75                 }
  76
  77                 public IMessageSink CreateMessageSink(string url, object remoteChannelData, out string objectURI)
  78                 {
  79                         return _clientChannel.CreateMessageSink(url, remoteChannelData, out objectURI);
  80                 }
  81
  82                 public string ChannelName
  83                 {
  84                         get { return _name; }
  85                 }
  86
  87                 public int ChannelPriority
  88                 {
  89                         get { return _priority; }
  90                 }
  91
  92                 public void StartListening (object data)
  93                 {
  94                         if (_serverChannel != null) _serverChannel.StartListening (data);
  95                 }
  96
  97                 public void StopListening (object data)
  98                 {
  99                         if (_serverChannel != null) _serverChannel.StopListening(data);
 100                         TcpConnectionPool.Shutdown ();
 101                 }
 102
 103                 public string[] GetUrlsForUri (string uri)
 104                 {
 105                         if (_serverChannel != null) return _serverChannel.GetUrlsForUri(uri);
 106                         else return null;
 107                 }
 108
 109                 public object ChannelData
 110                 {
 111                         get
 112                         {
 113                                 if (_serverChannel != null) return _serverChannel.ChannelData;
 114                                 else return null;
 115                         }
 116                 }
 117
 118                 public string Parse (string url, out string objectURI)
 119                 {
 120                         return TcpChannel.ParseChannelUrl (url, out objectURI);
 121                 }
 122
 123                 internal static string ParseChannelUrl (string url, out string objectURI)
 124                 {
 125                         if (url == null) throw new ArgumentNullException ("url");
 126
 127                         int port;
 128
 129                         string host = ParseTcpURL (url, out objectURI, out port);
 130                         if (host != null)
 131                                 return "tcp://" + host + ":" + port;
 132                         else
 133                                 return null;
 134                 }
 135
 136                 internal static string ParseTcpURL (string url, out string objectURI, out int port)
 137                 {
 138                         // format: "tcp://host:port/path/to/object"
 139
 140                         objectURI = null;
 141                         port = 0;
 142
 143                         Match m = Regex.Match (url, "tcp://([^:]+):([0-9]+)/?(.*)");
 144
 145                         if (!m.Success)
 146                                 return null;
 147
 148                         string host = m.Groups[1].Value;
 149                         string port_str = m.Groups[2].Value;
 150                         objectURI = m.Groups[3].Value;
 151                         port = Convert.ToInt32 (port_str);
 152
 153                         if (objectURI == string.Empty) objectURI = null;
 154
 155                         return host;
 156                 }
 157         }
 158 }