mcs/class/System.Web/System.Web.Util/AltSerialization.cs

   1 //
   2 // System.Web.Util.AltSerialization
   3 //
   4 // Author(s):
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //      Jackson Harper (jackson@ximian.com)
   7 //
   8 // (C) 2003 Novell, Inc (http://www.novell.com)
   9 //
  10
  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.IO;
  34 using System.Collections;
  35 using System.Runtime.Serialization.Formatters.Binary;
  36
  37 namespace System.Web.Util {
  38
  39         internal sealed class AltSerialization {
  40
  41
  42                 private AltSerialization () { }
  43
  44                 internal static void Serialize (BinaryWriter w, object value)
  45                 {
  46                         TypeCode typeCode = value != null ? Type.GetTypeCode (value.GetType ()) : TypeCode.Empty;
  47                         w.Write ((byte)typeCode);
  48
  49                         switch (typeCode) {
  50                         case TypeCode.Boolean:
  51                                 w.Write ((bool) value);
  52                                 break;
  53                         case TypeCode.Byte:
  54                                 w.Write ((byte) value);
  55                                 break;
  56                         case TypeCode.Char:
  57                                 w.Write ((char) value);
  58                                 break;
  59                         case TypeCode.DateTime:
  60                                 w.Write (((DateTime) value).Ticks);
  61                                 break;
  62                         case TypeCode.DBNull:
  63                                 break;
  64                         case TypeCode.Decimal:
  65                                 w.Write ((decimal) value);
  66                                 break;
  67                         case TypeCode.Double:
  68                                 w.Write ((double) value);
  69                                 break;
  70                         case TypeCode.Empty:
  71                                 break;
  72                         case TypeCode.Int16:
  73                                 w.Write ((short) value);
  74                                 break;
  75                         case TypeCode.Int32:
  76                                 w.Write ((int) value);
  77                                 break;
  78                         case TypeCode.Int64:
  79                                 w.Write ((long) value);
  80                                 break;
  81                         case TypeCode.Object:
  82 #if TARGET_J2EE
  83                                 if (w.BaseStream is java.io.ObjectOutput) {
  84                                         ((java.io.ObjectOutput) w.BaseStream).writeObject (value);
  85                                         return;
  86                                 }
  87 #endif
  88                                 BinaryFormatter bf = new BinaryFormatter ();
  89                                 bf.Serialize (w.BaseStream, value);
  90                                 break;
  91                         case TypeCode.SByte:
  92                                 w.Write ((sbyte) value);
  93                                 break;
  94                         case TypeCode.Single:
  95                                 w.Write ((float) value);
  96                                 break;
  97                         case TypeCode.String:
  98                                 w.Write ((string) value);
  99                                 break;
 100                         case TypeCode.UInt16:
 101                                 w.Write ((ushort) value);
 102                                 break;
 103                         case TypeCode.UInt32:
 104                                 w.Write ((uint) value);
 105                                 break;
 106                         case TypeCode.UInt64:
 107                                 w.Write ((ulong) value);
 108                                 break;
 109
 110                         }
 111                 }
 112
 113                 internal static object Deserialize (BinaryReader r)
 114                 {
 115                         TypeCode typeCode = (TypeCode)r.ReadByte();
 116                         switch (typeCode) {
 117                         case TypeCode.Boolean:
 118                                 return r.ReadBoolean ();
 119                         case TypeCode.Byte:
 120                                 return r.ReadByte ();
 121                         case TypeCode.Char:
 122                                 return r.ReadChar ();
 123                         case TypeCode.DateTime:
 124                                 return new DateTime (r.ReadInt64 ());
 125                         case TypeCode.DBNull:
 126                                 return DBNull.Value;
 127                         case TypeCode.Decimal:
 128                                 return r.ReadDecimal ();
 129                         case TypeCode.Double:
 130                                 return r.ReadDouble ();
 131                         case TypeCode.Empty:
 132                                 return null;
 133                         case TypeCode.Int16:
 134                                 return r.ReadInt16 ();
 135                         case TypeCode.Int32:
 136                                 return r.ReadInt32 ();
 137                         case TypeCode.Int64:
 138                                 return r.ReadInt64 ();
 139                         case TypeCode.Object:
 140 #if TARGET_J2EE
 141                                 if (r.BaseStream is java.io.ObjectInput)
 142                                         return ((java.io.ObjectInput) r.BaseStream).readObject ();
 143 #endif
 144                                 BinaryFormatter bf = new BinaryFormatter ();
 145                                 return bf.Deserialize (r.BaseStream);
 146                         case TypeCode.SByte:
 147                                 return r.ReadSByte ();
 148                         case TypeCode.Single:
 149                                 return r.ReadSingle ();
 150                         case TypeCode.String:
 151                                 return r.ReadString ();
 152                         case TypeCode.UInt16:
 153                                 return r.ReadUInt16 ();
 154                         case TypeCode.UInt32:
 155                                 return r.ReadUInt32 ();
 156                         case TypeCode.UInt64:
 157                                 return r.ReadUInt64 ();
 158                         default:
 159                                 throw new ArgumentOutOfRangeException ("TypeCode:" + typeCode);
 160                         }
 161                 }
 162         }
 163 }
 164