class/System.XML/System.Xml.Serialization/SoapAttributeOverrides.cs

   1 //
   2 // SoapAttributeOverrides.cs:
   3 //
   4 // Author:
   5 //   John Donagher (john@webmeta.com)
   6 //
   7 // (C) 2002 John Donagher
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Collections;
  33
  34 namespace System.Xml.Serialization
  35 {
  36         /// <summary>
  37         ///
  38         /// </summary>
  39         public class SoapAttributeOverrides
  40         {
  41                 /// <summary>
  42                 /// This class requires to store SoapAttrributes indexed by a key containg
  43                 /// both Type and Member Name. There are 3 approaches to this IMO.
  44                 /// 1. Make the key as "FullTypeName..MemberName", with ".." seperating Type and Member.
  45                 /// 2. Use a jagged 2D hashtable. The main hashtable is indexed by Type and each value
  46                 ///    contains another hashtable which is indexed by member names. (Too many hashtables)
  47                 /// 3. Use a new class which emcompasses the Type and MemberName. An implementation is there
  48                 ///    in TypeMember class in this namespace. (Too many instantiations of the class needed)
  49                 ///
  50                 /// Method 1 is the most elegent, but I am not sure if the seperator is language insensitive.
  51                 /// What if someone writes a language which allows . in the member names.
  52                 /// </summary>
  53                 ///
  54                 private Hashtable overrides;
  55
  56                 public SoapAttributeOverrides ()
  57                 {
  58                         overrides = new Hashtable();
  59                 }
  60
  61                 public SoapAttributes this [Type type]
  62                 {
  63                         get { return this [type, string.Empty]; }
  64                 }
  65
  66                 public SoapAttributes this [Type type, string member]
  67                 {
  68                         get
  69                         {
  70                                 return (SoapAttributes) overrides[GetKey(type,member)];
  71                         }
  72                 }
  73
  74                 public void Add (Type type, SoapAttributes attributes)
  75                 {
  76                         Add(type, string.Empty, attributes);
  77                 }
  78
  79                 public void Add (Type type, string member, SoapAttributes attributes)
  80                 {
  81                         if(overrides[GetKey(type, member)] != null)
  82                                 throw new Exception("The attributes for the given type and Member already exist in the collection");
  83
  84                         overrides.Add(GetKey(type,member), attributes);
  85                 }
  86
  87                 private TypeMember GetKey(Type type, string member)
  88                 {
  89                         return new TypeMember(type, member);
  90                 }
  91
  92                 internal void AddKeyHash (System.Text.StringBuilder sb)
  93                 {
  94                         sb.Append ("SAO ");
  95                         foreach (DictionaryEntry entry in overrides)
  96                         {
  97                                 SoapAttributes val = (SoapAttributes) overrides [entry.Key];
  98                                 sb.Append (entry.Key.ToString()).Append(' ');
  99                                 val.AddKeyHash (sb);
 100                         }
 101                         sb.Append ("|");
 102                 }
 103         }
 104 }