class/System.ServiceModel/System.ServiceModel.Configuration/EncodingConverter.cs

   1 //
   2 // EncodingConverter.cs
   3 //
   4 // Author:
   5 //      Igor Zelmanovich <igorz@mainsoft.com>
   6 //
   7 // Copyright (C) 2008 Mainsoft, Inc.  http://www.mainsoft.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;
  30 using System.Collections.Generic;
  31 using System.Text;
  32 using System.ComponentModel;
  33 using System.Globalization;
  34
  35 namespace System.ServiceModel.Configuration
  36 {
  37         sealed class EncodingConverter : TypeConverter
  38         {
  39                 static EncodingConverter _instance = new EncodingConverter ();
  40
  41                 public static EncodingConverter Instance {
  42                         get { return _instance; }
  43                 }
  44
  45                 public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType) {
  46                         return sourceType == typeof (string);
  47                 }
  48
  49                 public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value) {
  50                         string encString = (string) value;
  51                         Encoding encoding;
  52
  53                         switch (encString.ToLower (CultureInfo.InvariantCulture)) {
  54                         case "utf-16le":
  55                         case "utf-16":
  56                         case "ucs-2":
  57                         case "unicode":
  58                         case "iso-10646-ucs-2":
  59                                 encoding = new UnicodeEncoding (false, true);
  60                                 break;
  61                         case "utf-16be":
  62                         case "unicodefffe":
  63                                 encoding = new UnicodeEncoding (true, true);
  64                                 break;
  65                         case "utf-8":
  66                         case "unicode-1-1-utf-8":
  67                         case "unicode-2-0-utf-8":
  68                         case "x-unicode-1-1-utf-8":
  69                         case "x-unicode-2-0-utf-8":
  70                                 encoding = Encoding.UTF8;
  71                                 break;
  72                         default:
  73                                 encoding = Encoding.GetEncoding (encString);
  74                                 break;
  75                         }
  76
  77                         return encoding;
  78                 }
  79
  80                 public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
  81                         Encoding encoding = (Encoding) value;
  82                         return encoding.WebName;
  83                 }
  84         }
  85 }