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                 private static ArrayList types;
  42
  43                 internal static readonly int NullIndex = 16;
  44
  45                 private AltSerialization () { }
  46
  47
  48                 static AltSerialization ()
  49                 {
  50                         types = new ArrayList ();
  51                         types.Add ("");
  52                         types.Add (typeof (string));
  53                         types.Add (typeof (int));
  54                         types.Add (typeof (bool));
  55                         types.Add (typeof (DateTime));
  56                         types.Add (typeof (Decimal));
  57                         types.Add (typeof (Byte));
  58                         types.Add (typeof (Char));
  59                         types.Add (typeof (Single));
  60                         types.Add (typeof (Double));
  61                         types.Add (typeof (short));
  62                         types.Add (typeof (long));
  63                         types.Add (typeof (ushort));
  64                         types.Add (typeof (uint));
  65                         types.Add (typeof (ulong));
  66                 }
  67
  68                 internal static void SerializeByType (BinaryWriter w, object value)
  69                 {
  70                         Type type = value.GetType ();
  71                         int i = types.IndexOf (type);
  72                         if (i == -1) {
  73                                 w.Write (15); // types.Count
  74                                 BinaryFormatter bf = new BinaryFormatter ();
  75                                 bf.Serialize (w.BaseStream, value);
  76                                 return;
  77                         }
  78
  79                         w.Write (i);
  80                         switch (i) {
  81                         case 1:
  82                                 w.Write ((string) value);
  83                                 break;
  84                         case 2:
  85                                 w.Write ((int) value);
  86                                 break;
  87                         case 3:
  88                                 w.Write ((bool) value);
  89                                 break;
  90                         case 4:
  91                                 w.Write (((DateTime) value).Ticks);
  92                                 break;
  93                         case 5:
  94                                 w.Write ((decimal) value);
  95                                 break;
  96                         case 6:
  97                                 w.Write ((byte) value);
  98                                 break;
  99                         case 7:
 100                                 w.Write ((char) value);
 101                                 break;
 102                         case 8:
 103                                 w.Write ((float) value);
 104                                 break;
 105                         case 9:
 106                                 w.Write ((double) value);
 107                                 break;
 108                         case 10:
 109                                 w.Write ((short) value);
 110                                 break;
 111                         case 11:
 112                                 w.Write ((long) value);
 113                                 break;
 114                         case 12:
 115                                 w.Write ((ushort) value);
 116                                 break;
 117                         case 13:
 118                                 w.Write ((uint) value);
 119                                 break;
 120                         case 14:
 121                                 w.Write ((ulong) value);
 122                                 break;
 123                         }
 124                 }
 125
 126                 internal static object DeserializeFromIndex (int index, BinaryReader r)
 127                 {
 128                         if (index == 15){
 129                                 BinaryFormatter bf = new BinaryFormatter ();
 130                                 return bf.Deserialize (r.BaseStream);
 131                         }
 132
 133                         object value = null;
 134                         switch (index) {
 135                         case 1:
 136                                 value = r.ReadString ();
 137                                 break;
 138                         case 2:
 139                                 value = r.ReadInt32 ();
 140                                 break;
 141                         case 3:
 142                                 value = r.ReadBoolean ();
 143                                 break;
 144                         case 4:
 145                                 value = new DateTime (r.ReadInt64 ());
 146                                 break;
 147                         case 5:
 148                                 value = r.ReadDecimal ();
 149                                 break;
 150                         case 6:
 151                                 value = r.ReadByte ();
 152                                 break;
 153                         case 7:
 154                                 value = r.ReadChar ();
 155                                 break;
 156                         case 8:
 157                                 value = r.ReadSingle ();
 158                                 break;
 159                         case 9:
 160                                 value = r.ReadDouble ();
 161                                 break;
 162                         case 10:
 163                                 value = r.ReadInt16 ();
 164                                 break;
 165                         case 11:
 166                                 value = r.ReadInt64 ();
 167                                 break;
 168                         case 12:
 169                                 value = r.ReadUInt16 ();
 170                                 break;
 171                         case 13:
 172                                 value = r.ReadUInt32 ();
 173                                 break;
 174                         case 14:
 175                                 value = r.ReadUInt64 ();
 176                                 break;
 177                         }
 178
 179                         return value;
 180                 }
 181         }
 182 }
 183