class/System.ServiceModel/System.ServiceModel.Channels/PeerChannelListener.cs

   1 //
   2 // PeerChannelListener.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2009 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.Collections.ObjectModel;
  31 using System.Net;
  32 using System.Net.Security;
  33 using System.ServiceModel;
  34 using System.ServiceModel.Description;
  35 using System.ServiceModel.Security;
  36 using System.Text;
  37 using System.Threading;
  38
  39 namespace System.ServiceModel.Channels
  40 {
  41         internal class PeerChannelListener<TChannel> : InternalChannelListenerBase<TChannel>, IPeerChannelManager
  42                 where TChannel : class, IChannel
  43         {
  44                 PeerTransportBindingElement source;
  45                 BindingContext context;
  46                 TChannel channel;
  47                 MessageEncoder encoder;
  48                 AutoResetEvent accept_handle = new AutoResetEvent (false);
  49
  50                 public PeerChannelListener (PeerTransportBindingElement source,
  51                         BindingContext context)
  52                         : base (context)
  53                 {
  54                         this.source = source;
  55                         foreach (BindingElement be in context.RemainingBindingElements) {
  56                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
  57                                 if (mbe != null) {
  58                                         encoder = CreateEncoder<TChannel> (mbe);
  59                                         break;
  60                                 }
  61                         }
  62                         if (encoder == null)
  63                                 encoder = new BinaryMessageEncoder ();
  64                 }
  65
  66                 public PeerResolver Resolver { get; set; }
  67
  68                 public PeerTransportBindingElement Source {
  69                         get { return source; }
  70                 }
  71
  72                 public MessageEncoder MessageEncoder {
  73                         get { return encoder; }
  74                 }
  75
  76                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
  77                 {
  78                         DateTime start = DateTime.Now;
  79                         if (channel != null)
  80                                 if (!accept_handle.WaitOne (timeout))
  81                                         throw new TimeoutException ();
  82                         channel = PopulateChannel (timeout - (DateTime.Now - start));
  83                         ((CommunicationObject) (object) channel).Closed += delegate {
  84                                 this.channel = null;
  85                                 accept_handle.Set ();
  86                                 };
  87                         return channel;
  88                 }
  89
  90                 TChannel PopulateChannel (TimeSpan timeout)
  91                 {
  92                         if (typeof (TChannel) == typeof (IInputChannel))
  93                                 return (TChannel) (object) new PeerDuplexChannel (this);
  94                         // FIXME: handle timeout somehow.
  95                         if (typeof (TChannel) == typeof (IDuplexChannel))
  96                                 return (TChannel) (object) new PeerDuplexChannel (this);
  97
  98                         throw new InvalidOperationException (String.Format ("Not supported channel '{0}' (mono bug; it is incorrectly allowed at construction time)", typeof (TChannel)));
  99                 }
 100
 101                 protected override bool OnWaitForChannel (TimeSpan timeout)
 102                 {
 103                         throw new NotImplementedException ();
 104                 }
 105
 106                 protected override void OnOpen (TimeSpan timeout)
 107                 {
 108                 }
 109
 110                 protected override void OnClose (TimeSpan timeout)
 111                 {
 112                         if (channel != null)
 113                                 channel.Close (timeout);
 114                 }
 115
 116                 protected override void OnAbort ()
 117                 {
 118                         if (channel != null)
 119                                 channel.Abort ();
 120                 }
 121         }
 122 }