class/Mono.Posix/Mono.Remoting.Channels.Unix/UnixClientChannel.cs

   1 //
   2 // Mono.Remoting.Channels.Unix.UnixClientChannel.cs
   3 //
   4 // Author: Dietmar Maurer (dietmar@ximian.com)
   5 //     Lluis Sanchez Gual (lluis@novell.com)
   6 //
   7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   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;
  32 using System.Collections;
  33 using System.IO;
  34 using System.Net.Sockets;
  35 using System.Runtime.Remoting.Messaging;
  36 using System.Runtime.Remoting.Channels;
  37 using System.Threading;
  38
  39 namespace Mono.Remoting.Channels.Unix
  40 {
  41     public class UnixClientChannel : IChannelSender, IChannel
  42     {
  43         int priority = 1;
  44         string name = "unix";
  45         IClientChannelSinkProvider _sinkProvider;
  46
  47         public UnixClientChannel ()
  48         {
  49             _sinkProvider = new UnixBinaryClientFormatterSinkProvider ();
  50             _sinkProvider.Next = new UnixClientTransportSinkProvider ();
  51         }
  52
  53         public UnixClientChannel (IDictionary properties, IClientChannelSinkProvider sinkProvider)
  54         {
  55             object val = properties ["name"];
  56             if (val != null) name = val as string;
  57
  58             val = properties ["priority"];
  59             if (val != null) priority = Convert.ToInt32 (val);
  60
  61             if (sinkProvider != null)
  62             {
  63                 _sinkProvider = sinkProvider;
  64
  65                 // add the unix provider at the end of the chain
  66                 IClientChannelSinkProvider prov = sinkProvider;
  67                 while (prov.Next != null) prov = prov.Next;
  68                 prov.Next = new UnixClientTransportSinkProvider ();
  69
  70                 // Note: a default formatter is added only when
  71                 // no sink providers are specified in the config file.
  72             }
  73             else
  74             {
  75                 _sinkProvider = new UnixBinaryClientFormatterSinkProvider ();
  76                 _sinkProvider.Next = new UnixClientTransportSinkProvider ();
  77             }
  78
  79         }
  80
  81         public UnixClientChannel (string name, IClientChannelSinkProvider sinkProvider)
  82         {
  83             this.name = name;
  84             _sinkProvider = sinkProvider;
  85
  86             // add the unix provider at the end of the chain
  87             IClientChannelSinkProvider prov = sinkProvider;
  88             while (prov.Next != null) prov = prov.Next;
  89             prov.Next = new UnixClientTransportSinkProvider ();
  90         }
  91
  92         public string ChannelName
  93         {
  94             get {
  95                 return name;
  96             }
  97         }
  98
  99         public int ChannelPriority
 100         {
 101             get {
 102                 return priority;
 103             }
 104         }
 105
 106         public IMessageSink CreateMessageSink (string url,
 107                                                object remoteChannelData,
 108                                                out string objectURI)
 109         {
 110             if (url != null && Parse (url, out objectURI) != null)
 111                 return (IMessageSink) _sinkProvider.CreateSink (this, url, remoteChannelData);
 112
 113             if (remoteChannelData != null) {
 114                 IChannelDataStore ds = remoteChannelData as IChannelDataStore;
 115                 if (ds != null && ds.ChannelUris.Length > 0)
 116                     url = ds.ChannelUris [0];
 117                 else {
 118                     objectURI = null;
 119                     return null;
 120                 }
 121             }
 122
 123             if (Parse (url, out objectURI) == null)
 124                 return null;
 125
 126             return (IMessageSink) _sinkProvider.CreateSink (this, url, remoteChannelData);
 127         }
 128
 129         public string Parse (string url, out string objectURI)
 130         {
 131             return UnixChannel.ParseUnixURL (url, out objectURI);
 132         }
 133     }
 134 }