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;
  47
  48                 public static BinaryCore DefaultInstance = new BinaryCore (TypeFilterLevel.Low);
  49                 public static readonly BinaryCore DefaultClientInstance = new BinaryCore (TypeFilterLevel.Full);
  50
  51                 public BinaryCore (object owner, IDictionary properties, string[] allowedProperties)
  52                 {
  53                         _properties = properties;
  54
  55                         if (_properties == null)
  56                         {
  57                                 _properties = new Hashtable(10);
  58                         }
  59
  60                         foreach(DictionaryEntry property in properties)
  61                         {
  62                                 string key = (string) property.Key;
  63                                 if (Array.IndexOf (allowedProperties, key) == -1)
  64                                         throw new RemotingException (owner.GetType().Name + " does not recognize '" + key + "' configuration property");
  65
  66                                 switch (key)
  67                                 {
  68                                         case "includeVersions":
  69                                                 _includeVersions = Convert.ToBoolean (property.Value);
  70                                                 break;
  71
  72                                         case "strictBinding":
  73                                                 _strictBinding = Convert.ToBoolean (property.Value);
  74                                                 break;
  75
  76                                         case "typeFilterLevel":
  77                                                 if (property.Value is TypeFilterLevel)
  78                                                         _filterLevel = (TypeFilterLevel) property.Value;
  79                                                 else {
  80                                                         string s = (string) property.Value;
  81                                                         _filterLevel = (TypeFilterLevel) Enum.Parse (typeof(TypeFilterLevel), s);
  82                                                 }
  83                                                 break;
  84
  85                                 }
  86                         }
  87
  88                         Init ();
  89                 }
  90
  91                 public BinaryCore (TypeFilterLevel filterLevel)
  92                 {
  93                         _filterLevel = filterLevel;
  94                         _properties = new Hashtable ();
  95                         Init ();
  96                 }
  97
  98                 public void Init ()
  99                 {
 100                         RemotingSurrogateSelector surrogateSelector = new RemotingSurrogateSelector ();
 101                         StreamingContext context = new StreamingContext (StreamingContextStates.Remoting, null);
 102
 103                         _serializationFormatter = new BinaryFormatter (surrogateSelector, context);
 104                         _deserializationFormatter = new BinaryFormatter (null, context);
 105
 106                         _serializationFormatter.FilterLevel = _filterLevel;
 107                         _deserializationFormatter.FilterLevel = _filterLevel;
 108
 109                         if (!_includeVersions)
 110                         {
 111                                 _serializationFormatter.AssemblyFormat = FormatterAssemblyStyle.Simple;
 112                                 _deserializationFormatter.AssemblyFormat = FormatterAssemblyStyle.Simple;
 113                         }
 114
 115                         if (!_strictBinding)
 116                         {
 117                                 _serializationFormatter.Binder = ChannelCore.SimpleBinder;
 118                                 _deserializationFormatter.Binder = ChannelCore.SimpleBinder;
 119                         }
 120                 }
 121
 122                 public BinaryFormatter Serializer
 123                 {
 124                         get { return _serializationFormatter; }
 125                 }
 126
 127                 public BinaryFormatter Deserializer
 128                 {
 129                         get { return _deserializationFormatter; }
 130                 }
 131
 132                 public IDictionary Properties
 133                 {
 134                         get { return _properties; }
 135                 }
 136
 137                 public TypeFilterLevel TypeFilterLevel
 138                 {
 139                         get { return _filterLevel; }
 140                 }
 141         }
 142 }
 143