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 	{
AltSerialization()41 		AltSerialization () { }
42 
Serialize(BinaryWriter w, object value)43 		internal static void Serialize (BinaryWriter w, object value)
44 		{
45 			TypeCode typeCode = value != null ? Type.GetTypeCode (value.GetType ()) : TypeCode.Empty;
46 			w.Write ((byte)typeCode);
47 
48 			switch (typeCode) {
49 			case TypeCode.Boolean:
50 				w.Write ((bool) value);
51 				break;
52 			case TypeCode.Byte:
53 				w.Write ((byte) value);
54 				break;
55 			case TypeCode.Char:
56 				w.Write ((char) value);
57 				break;
58 			case TypeCode.DateTime:
59 				w.Write (((DateTime) value).Ticks);
60 				break;
61 			case TypeCode.DBNull:
62 				break;
63 			case TypeCode.Decimal:
64 				w.Write ((decimal) value);
65 				break;
66 			case TypeCode.Double:
67 				w.Write ((double) value);
68 				break;
69 			case TypeCode.Empty:
70 				break;
71 			case TypeCode.Int16:
72 				w.Write ((short) value);
73 				break;
74 			case TypeCode.Int32:
75 				w.Write ((int) value);
76 				break;
77 			case TypeCode.Int64:
78 				w.Write ((long) value);
79 				break;
80 			case TypeCode.Object:
81 				BinaryFormatter bf = new BinaryFormatter ();
82 				bf.Serialize (w.BaseStream, value);
83 				break;
84 			case TypeCode.SByte:
85 				w.Write ((sbyte) value);
86 				break;
87 			case TypeCode.Single:
88 				w.Write ((float) value);
89 				break;
90 			case TypeCode.String:
91 				w.Write ((string) value);
92 				break;
93 			case TypeCode.UInt16:
94 				w.Write ((ushort) value);
95 				break;
96 			case TypeCode.UInt32:
97 				w.Write ((uint) value);
98 				break;
99 			case TypeCode.UInt64:
100 				w.Write ((ulong) value);
101 				break;
102 
103 			}
104 		}
105 
Deserialize(BinaryReader r)106 		internal static object Deserialize (BinaryReader r)
107 		{
108 			TypeCode typeCode = (TypeCode)r.ReadByte();
109 			switch (typeCode) {
110 			case TypeCode.Boolean:
111 				return r.ReadBoolean ();
112 			case TypeCode.Byte:
113 				return r.ReadByte ();
114 			case TypeCode.Char:
115 				return r.ReadChar ();
116 			case TypeCode.DateTime:
117 				return new DateTime (r.ReadInt64 ());
118 			case TypeCode.DBNull:
119 				return DBNull.Value;
120 			case TypeCode.Decimal:
121 				return r.ReadDecimal ();
122 			case TypeCode.Double:
123 				return r.ReadDouble ();
124 			case TypeCode.Empty:
125 				return null;
126 			case TypeCode.Int16:
127 				return r.ReadInt16 ();
128 			case TypeCode.Int32:
129 				return r.ReadInt32 ();
130 			case TypeCode.Int64:
131 				return r.ReadInt64 ();
132 			case TypeCode.Object:
133 				BinaryFormatter bf = new BinaryFormatter ();
134 				return bf.Deserialize (r.BaseStream);
135 			case TypeCode.SByte:
136 				return r.ReadSByte ();
137 			case TypeCode.Single:
138 				return r.ReadSingle ();
139 			case TypeCode.String:
140 				return r.ReadString ();
141 			case TypeCode.UInt16:
142 				return r.ReadUInt16 ();
143 			case TypeCode.UInt32:
144 				return r.ReadUInt32 ();
145 			case TypeCode.UInt64:
146 				return r.ReadUInt64 ();
147 			default:
148 				throw new ArgumentOutOfRangeException ("TypeCode:" + typeCode);
149 			}
150 		}
151 	}
152 }
153 
154