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 #if TARGET_J2EE
  75                                 ((System.Web.J2EE.ObjectOutputStream)w.BaseStream).NativeStream.writeObject(value);
  76 #else
  77                                 BinaryFormatter bf = new BinaryFormatter ();
  78                                 bf.Serialize (w.BaseStream, value);
  79 #endif
  80                                 return;
  81                         }
  82
  83                         w.Write (i);
  84                         switch (i) {
  85                         case 1:
  86                                 w.Write ((string) value);
  87                                 break;
  88                         case 2:
  89                                 w.Write ((int) value);
  90                                 break;
  91                         case 3:
  92                                 w.Write ((bool) value);
  93                                 break;
  94                         case 4:
  95                                 w.Write (((DateTime) value).Ticks);
  96                                 break;
  97                         case 5:
  98                                 w.Write ((decimal) value);
  99                                 break;
 100                         case 6:
 101                                 w.Write ((byte) value);
 102                                 break;
 103                         case 7:
 104                                 w.Write ((char) value);
 105                                 break;
 106                         case 8:
 107                                 w.Write ((float) value);
 108                                 break;
 109                         case 9:
 110                                 w.Write ((double) value);
 111                                 break;
 112                         case 10:
 113                                 w.Write ((short) value);
 114                                 break;
 115                         case 11:
 116                                 w.Write ((long) value);
 117                                 break;
 118                         case 12:
 119                                 w.Write ((ushort) value);
 120                                 break;
 121                         case 13:
 122                                 w.Write ((uint) value);
 123                                 break;
 124                         case 14:
 125                                 w.Write ((ulong) value);
 126                                 break;
 127                         }
 128                 }
 129
 130                 internal static object DeserializeFromIndex (int index, BinaryReader r)
 131                 {
 132                         if (index == 15){
 133 #if TARGET_J2EE
 134                                 return ((System.Web.J2EE.ObjectInputStream)r.BaseStream).NativeStream.readObject();
 135 #else
 136                                 BinaryFormatter bf = new BinaryFormatter ();
 137                                 return bf.Deserialize (r.BaseStream);
 138 #endif
 139                         }
 140
 141                         object value = null;
 142                         switch (index) {
 143                         case 1:
 144                                 value = r.ReadString ();
 145                                 break;
 146                         case 2:
 147                                 value = r.ReadInt32 ();
 148                                 break;
 149                         case 3:
 150                                 value = r.ReadBoolean ();
 151                                 break;
 152                         case 4:
 153                                 value = new DateTime (r.ReadInt64 ());
 154                                 break;
 155                         case 5:
 156                                 value = r.ReadDecimal ();
 157                                 break;
 158                         case 6:
 159                                 value = r.ReadByte ();
 160                                 break;
 161                         case 7:
 162                                 value = r.ReadChar ();
 163                                 break;
 164                         case 8:
 165                                 value = r.ReadSingle ();
 166                                 break;
 167                         case 9:
 168                                 value = r.ReadDouble ();
 169                                 break;
 170                         case 10:
 171                                 value = r.ReadInt16 ();
 172                                 break;
 173                         case 11:
 174                                 value = r.ReadInt64 ();
 175                                 break;
 176                         case 12:
 177                                 value = r.ReadUInt16 ();
 178                                 break;
 179                         case 13:
 180                                 value = r.ReadUInt32 ();
 181                                 break;
 182                         case 14:
 183                                 value = r.ReadUInt64 ();
 184                                 break;
 185                         }
 186
 187                         return value;
 188                 }
 189         }
 190 }
 191