class/System.ServiceModel/System.ServiceModel.Channels/MessageEncoder.cs

   1 //
   2 // MessageEncoder.cs
   3 //
   4 // Author: Atsushi Enomoto (atsushi@ximian.com)
   5 //
   6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27 using System;
  28 using System.IO;
  29 using System.Collections.ObjectModel;
  30 using System.ServiceModel;
  31
  32 namespace System.ServiceModel.Channels
  33 {
  34         public abstract class MessageEncoder
  35         {
  36                 protected MessageEncoder ()
  37                 {
  38                 }
  39
  40                 public abstract string ContentType { get; }
  41
  42                 public abstract string MediaType { get; }
  43
  44                 public abstract MessageVersion MessageVersion { get; }
  45
  46                 [MonoTODO]
  47                 public virtual T GetProperty<T> () where T : class
  48                 {
  49                         throw new NotImplementedException ();
  50                 }
  51
  52                 public virtual bool IsContentTypeSupported (string contentType)
  53                 {
  54                         return contentType == ContentType;
  55                 }
  56
  57                 public Message ReadMessage (ArraySegment<byte> buffer,
  58                         BufferManager bufferManager)
  59                 {
  60                         return ReadMessage (buffer, bufferManager, ContentType);
  61                 }
  62
  63                 public abstract Message ReadMessage (ArraySegment<byte> buffer,
  64                         BufferManager bufferManager, string contentType);
  65
  66                 public Message ReadMessage (Stream stream, int maxSizeOfHeaders)
  67                 {
  68                         return ReadMessage (stream, maxSizeOfHeaders, ContentType);
  69                 }
  70
  71                 public abstract Message ReadMessage (Stream stream,
  72                         int maxSizeOfHeaders, string contentType);
  73
  74                 public abstract void WriteMessage (Message message, Stream stream);
  75
  76                 public ArraySegment<byte> WriteMessage (Message message,
  77                         int maxMessageSize, BufferManager bufferManager)
  78                 {
  79                         return WriteMessage (message, maxMessageSize, bufferManager, 0);
  80                 }
  81
  82                 public abstract ArraySegment<byte> WriteMessage (
  83                         Message message, int maxMessageSize,
  84                         BufferManager bufferManager, int messageOffset);
  85
  86                 public override string ToString ()
  87                 {
  88                         return ContentType;
  89                 }
  90
  91                 internal void VerifyMessageVersion (Message message)
  92                 {
  93                         if (!message.Version.Equals (MessageVersion))
  94                                 throw new ProtocolException (String.Format ("Message version mismatch. Expected {0} but was {1}.", MessageVersion, message.Version));
  95                 }
  96         }
  97 }