mcs/class/System.Web/System.Web/OutputFilterStream.cs

   1 //
   2 // System.Web.OutputFilterStream
   3 //
   4 // Author:
   5 //   Gonzalo Paniagua Javier (gonzalo@ximian.com
   6 //
   7 // (c) 2005-2009 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
  29 using System.Runtime.InteropServices;
  30 using System.IO;
  31
  32 namespace System.Web
  33 {
  34         sealed class OutputFilterStream : Stream
  35         {
  36                 HttpResponseStream stream;
  37
  38                 public OutputFilterStream (HttpResponseStream stream)
  39                 {
  40                         this.stream = stream;
  41                 }
  42
  43                 public override bool CanRead {
  44                         get {
  45                                 return false;
  46                         }
  47                 }
  48
  49                 public override bool CanSeek {
  50                         get {
  51                                 return false;
  52                         }
  53                 }
  54
  55                 public override bool CanWrite {
  56                         get {
  57                                 return true;
  58                         }
  59                 }
  60
  61                 public override long Position {
  62                         get {
  63                                 throw new NotSupportedException ();
  64                         }
  65
  66                         set {
  67                                 throw new NotSupportedException ();
  68                         }
  69                 }
  70
  71                 public override long Length {
  72                         get {
  73                                 throw new NotSupportedException ();
  74                         }
  75                 }
  76
  77                 public override int Read (byte [] buffer, int offset, int count)
  78                 {
  79                         throw new NotSupportedException ();
  80                 }
  81
  82                 public override int ReadByte ()
  83                 {
  84                         throw new NotSupportedException ();
  85                 }
  86
  87                 public override long Seek (long offset, SeekOrigin loc)
  88                 {
  89                         throw new NotSupportedException ();
  90                 }
  91
  92                 public override void SetLength (long value)
  93                 {
  94                         throw new NotSupportedException ("This stream can not change its size");
  95                 }
  96
  97                 public override void Write (byte [] buffer, int offset, int count)
  98                 {
  99                         stream.Write (buffer, offset, count);
 100                 }
 101
 102                 public override void Flush ()
 103                 {
 104                 }
 105         }
 106 }
 107