mcs/class/System.ServiceModel/System.ServiceModel.Channels/DuplexChannelBase.cs

   1 //
   2 // DuplexSessionChannelBase.cs
   3 //
   4 // Author:
   5 //     Marcos Cobena (marcoscobena@gmail.com)
   6 //      Atsushi Enomoto  <atsushi@ximian.com>
   7 //
   8 // Copyright 2007 Marcos Cobena (http://www.youcannoteatbits.org/)
   9 //
  10 // Copyright (C) 2009 Novell, Inc.  http://www.novell.com
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.ServiceModel.Channels;
  34
  35 namespace System.ServiceModel.Channels
  36 {
  37         internal abstract class DuplexChannelBase : ChannelBase, IDuplexChannel
  38         {
  39                 ChannelFactoryBase channel_factory_base;
  40                 ChannelListenerBase channel_listener_base;
  41                 EndpointAddress local_address;
  42                 EndpointAddress remote_address;
  43                 Uri via;
  44
  45                 public DuplexChannelBase (ChannelFactoryBase factory, EndpointAddress remoteAddress, Uri via) : base (factory)
  46                 {
  47                         channel_factory_base = factory;
  48                         remote_address = remoteAddress;
  49                         this.via = via;
  50                         SetupDelegates ();
  51                 }
  52
  53                 public DuplexChannelBase (ChannelListenerBase listener) : base (listener)
  54                 {
  55                         channel_listener_base = listener;
  56                         local_address = new EndpointAddress (listener.Uri);
  57                         SetupDelegates ();
  58                 }
  59
  60                 public virtual EndpointAddress LocalAddress {
  61                         get { return local_address; }
  62                 }
  63
  64                 public virtual EndpointAddress RemoteAddress {
  65                         get { return remote_address; }
  66                 }
  67
  68                 public Uri Via {
  69                         get { return via ?? RemoteAddress.Uri; }
  70                 }
  71
  72                 void SetupDelegates ()
  73                 {
  74                         open_handler = new Action<TimeSpan> (Open);
  75                         close_handler = new Action<TimeSpan> (Close);
  76                         send_handler = new AsyncSendHandler (Send);
  77                         receive_handler = new AsyncReceiveHandler (Receive);
  78                         wait_handler = new AsyncWaitForMessageHandler (WaitForMessage);
  79                         try_receive_handler = new TryReceiveHandler (TryReceive);
  80                 }
  81
  82                 public override T GetProperty<T> ()
  83                 {
  84                         if (typeof (T) == typeof (IChannelFactory))
  85                                 return (T) (object) channel_factory_base;
  86                         if (typeof (T) == typeof (IChannelListener))
  87                                 return (T) (object) channel_listener_base;
  88                         return base.GetProperty<T> ();
  89                 }
  90
  91                 // Open
  92                 Action<TimeSpan> open_handler;
  93
  94                 protected override IAsyncResult OnBeginOpen (TimeSpan timeout, AsyncCallback callback, object state)
  95                 {
  96                         return open_handler.BeginInvoke (timeout, callback, state);
  97                 }
  98
  99                 protected override void OnEndOpen (IAsyncResult result)
 100                 {
 101                         open_handler.EndInvoke (result);
 102                 }
 103
 104                 // Close
 105                 Action<TimeSpan> close_handler;
 106
 107                 protected override IAsyncResult OnBeginClose (TimeSpan timeout, AsyncCallback callback, object state)
 108                 {
 109                         return close_handler.BeginInvoke (timeout, callback, state);
 110                 }
 111
 112                 protected override void OnEndClose (IAsyncResult result)
 113                 {
 114                         close_handler.EndInvoke (result);
 115                 }
 116
 117                 // Send
 118
 119                 delegate void AsyncSendHandler (Message message, TimeSpan timeout);
 120                 AsyncSendHandler send_handler;
 121
 122                 public virtual IAsyncResult BeginSend (Message message, AsyncCallback callback, object state)
 123                 {
 124                         return BeginSend (message, DefaultSendTimeout, callback, state);
 125                 }
 126
 127                 public virtual IAsyncResult BeginSend (Message message, TimeSpan timeout, AsyncCallback callback, object state)
 128                 {
 129                         return send_handler.BeginInvoke (message, timeout, callback, state);
 130                 }
 131
 132                 public virtual void EndSend (IAsyncResult result)
 133                 {
 134                         send_handler.EndInvoke (result);
 135                 }
 136
 137                 public virtual void Send (Message message)
 138                 {
 139                         Send (message, this.DefaultSendTimeout);
 140                 }
 141
 142                 public abstract void Send (Message message, TimeSpan timeout);
 143
 144                 // Receive
 145
 146                 delegate Message AsyncReceiveHandler (TimeSpan timeout);
 147                 AsyncReceiveHandler receive_handler;
 148
 149                 public virtual IAsyncResult BeginReceive (AsyncCallback callback, object state)
 150                 {
 151                         return BeginReceive (this.DefaultReceiveTimeout, callback, state);
 152                 }
 153
 154                 public virtual IAsyncResult BeginReceive (TimeSpan timeout, AsyncCallback callback, object state)
 155                 {
 156                         return receive_handler.BeginInvoke (timeout, callback, state);
 157                 }
 158
 159                 public virtual Message EndReceive (IAsyncResult result)
 160                 {
 161                         return receive_handler.EndInvoke (result);
 162                 }
 163
 164                 public virtual Message Receive ()
 165                 {
 166                         return Receive (this.DefaultReceiveTimeout);
 167                 }
 168
 169                 public abstract Message Receive (TimeSpan timeout);
 170
 171                 // TryReceive
 172
 173                 delegate bool TryReceiveHandler (TimeSpan timeout, out Message msg);
 174                 TryReceiveHandler try_receive_handler;
 175
 176                 public virtual IAsyncResult BeginTryReceive (TimeSpan timeout, AsyncCallback callback, object state)
 177                 {
 178                         Message dummy;
 179                         return try_receive_handler.BeginInvoke (timeout, out dummy, callback, state);
 180                 }
 181
 182                 public virtual bool EndTryReceive (IAsyncResult result, out Message message)
 183                 {
 184                         return try_receive_handler.EndInvoke (out message, result);
 185                 }
 186
 187                 public virtual bool TryReceive (TimeSpan timeout, out Message message)
 188                 {
 189                         try {
 190                                 message = Receive (timeout);
 191                                 return true;
 192                         } catch (TimeoutException) {
 193                                 message = null;
 194                                 return false;
 195                         }
 196                 }
 197
 198                 // WaitForMessage
 199
 200                 delegate bool AsyncWaitForMessageHandler (TimeSpan timeout);
 201                 AsyncWaitForMessageHandler wait_handler;
 202
 203                 public virtual IAsyncResult BeginWaitForMessage (TimeSpan timeout, AsyncCallback callback, object state)
 204                 {
 205                         return wait_handler.BeginInvoke (timeout, callback, state);
 206                 }
 207
 208                 public virtual bool EndWaitForMessage (IAsyncResult result)
 209                 {
 210                         return wait_handler.EndInvoke (result);
 211                 }
 212
 213                 public abstract bool WaitForMessage (TimeSpan timeout);
 214         }
 215 }