mcs/class/System.Runtime.Remoting/System.Runtime.Remoting.Channels/BinaryCore.cs

   1 //
   2 // System.Runtime.Remoting.Channels.BinaryCore.cs
   3 //
   4 // Author: Lluis Sanchez Gual (lluis@ximian.com)
   5 //
   6 // 2003 (C) Copyright, Novell, Inc.
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31 using System.Runtime.Remoting.Messaging;
  32 using System.Runtime.Serialization;
  33 using System.Runtime.Serialization.Formatters;
  34 using System.Runtime.Serialization.Formatters.Binary;
  35
  36 namespace System.Runtime.Remoting.Channels
  37 {
  38         internal class BinaryCore
  39         {
  40                 BinaryFormatter _serializationFormatter;
  41                 BinaryFormatter _deserializationFormatter;
  42                 bool _includeVersions = true;
  43                 bool _strictBinding = false;
  44                 IDictionary _properties;
  45
  46                 TypeFilterLevel _filterLevel = TypeFilterLevel.Low;
  47
  48                 public static BinaryCore DefaultInstance = new BinaryCore ();
  49
  50                 public BinaryCore (object owner, IDictionary properties, string[] allowedProperties)
  51                 {
  52                         _properties = properties;
  53
  54                         if (_properties == null)
  55                         {
  56                                 _properties = new Hashtable(10);
  57                         }
  58
  59                         foreach(DictionaryEntry property in properties)
  60                         {
  61                                 string key = (string) property.Key;
  62                                 if (Array.IndexOf (allowedProperties, key) == -1)
  63                                         throw new RemotingException (owner.GetType().Name + " does not recognize '" + key + "' configuration property");
  64
  65                                 switch (key)
  66                                 {
  67                                         case "includeVersions":
  68                                                 _includeVersions = Convert.ToBoolean (property.Value);
  69                                                 break;
  70
  71                                         case "strictBinding":
  72                                                 _strictBinding = Convert.ToBoolean (property.Value);
  73                                                 break;
  74
  75                                         case "typeFilterLevel":
  76                                                 if (property.Value is TypeFilterLevel)
  77                                                         _filterLevel = (TypeFilterLevel) property.Value;
  78                                                 else {
  79                                                         string s = (string) property.Value;
  80                                                         _filterLevel = (TypeFilterLevel) Enum.Parse (typeof(TypeFilterLevel), s);
  81                                                 }
  82                                                 break;
  83
  84                                 }
  85                         }
  86
  87                         Init ();
  88                 }
  89
  90                 public BinaryCore ()
  91                 {
  92                         _properties = new Hashtable ();
  93                         Init ();
  94                 }
  95
  96                 public void Init ()
  97                 {
  98                         RemotingSurrogateSelector surrogateSelector = new RemotingSurrogateSelector ();
  99                         StreamingContext context = new StreamingContext (StreamingContextStates.Remoting, null);
 100
 101                         _serializationFormatter = new BinaryFormatter (surrogateSelector, context);
 102                         _deserializationFormatter = new BinaryFormatter (null, context);
 103
 104                         _serializationFormatter.FilterLevel = _filterLevel;
 105                         _deserializationFormatter.FilterLevel = _filterLevel;
 106
 107                         if (!_includeVersions)
 108                         {
 109                                 _serializationFormatter.AssemblyFormat = FormatterAssemblyStyle.Simple;
 110                                 _deserializationFormatter.AssemblyFormat = FormatterAssemblyStyle.Simple;
 111                         }
 112
 113                         if (!_strictBinding)
 114                         {
 115                                 _serializationFormatter.Binder = ChannelCore.SimpleBinder;
 116                                 _deserializationFormatter.Binder = ChannelCore.SimpleBinder;
 117                         }
 118                 }
 119
 120                 public BinaryFormatter Serializer
 121                 {
 122                         get { return _serializationFormatter; }
 123                 }
 124
 125                 public BinaryFormatter Deserializer
 126                 {
 127                         get { return _deserializationFormatter; }
 128                 }
 129
 130                 public IDictionary Properties
 131                 {
 132                         get { return _properties; }
 133                 }
 134
 135                 public TypeFilterLevel TypeFilterLevel
 136                 {
 137                         get { return _filterLevel; }
 138                 }
 139         }
 140 }
 141