mcs/class/corlib/System.Runtime.Remoting.Metadata.W3cXsd2001/SoapHexBinary.cs

   1 //
   2 // System.Runtime.Remoting.Metadata.W3cXsd2001.SoapHexBinary.cs
   3 //
   4 // Authors:
   5 //      Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //      Lluis Sanchez Gual (lluis@ximian.com)
   7 //
   8 // (C) 2003 Martin Willemoes Hansen
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System;
  35 using System.Globalization;
  36 using System.Text;
  37
  38 namespace System.Runtime.Remoting.Metadata.W3cXsd2001
  39 {
  40         [Serializable]
  41         [System.Runtime.InteropServices.ComVisible (true)]
  42         public sealed class SoapHexBinary : ISoapXsd
  43         {
  44                 byte[] _value;
  45                 StringBuilder sb = new StringBuilder ();
  46
  47                 public SoapHexBinary ()
  48                 {
  49                 }
  50
  51                 public SoapHexBinary (byte[] value)
  52                 {
  53                         _value = value;
  54                 }
  55
  56                 public byte [] Value {
  57                         get { return _value; }
  58                         set { _value = value; }
  59                 }
  60
  61                 public static string XsdType {
  62                         get { return "hexBinary"; }
  63                 }
  64
  65                 public string GetXsdType()
  66                 {
  67                         return XsdType;
  68                 }
  69
  70                 public static SoapHexBinary Parse (string value)
  71                 {
  72                         byte [] bytes = FromBinHexString (value);
  73                         return new SoapHexBinary (bytes);
  74                 }
  75
  76                 internal static byte [] FromBinHexString (string value)
  77                 {
  78                         char [] chars = value.ToCharArray ();
  79                         byte [] buffer = new byte [chars.Length / 2 + chars.Length % 2];
  80                         int charLength = chars.Length;
  81
  82                         if (charLength % 2 != 0)
  83                                 throw CreateInvalidValueException (value);
  84
  85                         int bufIndex = 0;
  86                         for (int i = 0; i < charLength - 1; i += 2) {
  87                                 buffer [bufIndex] = FromHex (chars [i], value);
  88                                 buffer [bufIndex] <<= 4;
  89                                 buffer [bufIndex] += FromHex (chars [i + 1], value);
  90                                 bufIndex++;
  91                         }
  92                         return buffer;
  93                 }
  94
  95                 static byte FromHex (char hexDigit, string value)
  96                 {
  97                         try {
  98                                 return byte.Parse (hexDigit.ToString (),
  99                                         NumberStyles.HexNumber,
 100                                         CultureInfo.InvariantCulture);
 101                         } catch (FormatException) {
 102                                 throw CreateInvalidValueException (value);
 103                         }
 104                 }
 105
 106                 static Exception CreateInvalidValueException (string value)
 107                 {
 108                         return new RemotingException (string.Format (
 109                                 CultureInfo.InvariantCulture,
 110                                 "Invalid value '{0}' for xsd:{1}.",
 111                                 value, XsdType));
 112                 }
 113
 114                 public override string ToString()
 115                 {
 116                         sb.Length = 0;
 117                         foreach (byte b in _value)
 118                                 sb.Append (b.ToString ("X2"));
 119                         return sb.ToString ();
 120                 }
 121         }
 122 }