mcs/class/corlib/System.Runtime.Remoting.Messaging/MethodReturnMessageWrapper.cs

   1 //
   2 // System.Runtime.Remoting.Messaging.MethodReturnMessageWrapper.cs
   3 //
   4 // Author: Duncan Mak (duncan@ximian.com)
   5 //         Lluis Sanchez Gual (lluis@ideary.com)
   6 //
   7 // 2002 (C) Copyright, Ximian, Inc.
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Collections;
  35 using System.Reflection;
  36 using System.Runtime.Serialization;
  37
  38 namespace System.Runtime.Remoting.Messaging {
  39
  40         public class MethodReturnMessageWrapper : InternalMessageWrapper, IMethodReturnMessage, IMethodMessage, IMessage
  41         {
  42                 object[] _args;
  43                 ArgInfo _outArgInfo;
  44                 DictionaryWrapper _properties;
  45                 Exception _exception;
  46                 object _return;
  47
  48                 public MethodReturnMessageWrapper (IMethodReturnMessage msg)
  49                         : base (msg)
  50                 {
  51                         _args = ((IMethodCallMessage)WrappedMessage).Args;
  52                         _exception = msg.Exception;
  53                         _outArgInfo = new ArgInfo (msg.MethodBase, ArgInfoType.Out);
  54                 }
  55
  56                 public virtual int ArgCount {
  57                         get { return ((IMethodReturnMessage)WrappedMessage).ArgCount; }
  58                 }
  59
  60                 public virtual object [] Args
  61                 {
  62                         get { return _args; }
  63                         set { _args = value; }
  64                 }
  65
  66                 public virtual Exception Exception {
  67                         get { return _exception; }
  68                         set { _exception = value; }
  69                 }
  70
  71                 public virtual bool HasVarArgs {
  72                         get { return ((IMethodReturnMessage)WrappedMessage).HasVarArgs; }
  73                 }
  74
  75                 public virtual LogicalCallContext LogicalCallContext {
  76                         get { return ((IMethodReturnMessage)WrappedMessage).LogicalCallContext; }
  77                 }
  78
  79                 public virtual MethodBase MethodBase {
  80                         get { return ((IMethodReturnMessage)WrappedMessage).MethodBase; }
  81                 }
  82
  83                 public virtual string MethodName {
  84                         get { return ((IMethodReturnMessage)WrappedMessage).MethodName; }
  85                 }
  86
  87                 public virtual object MethodSignature {
  88                         get { return ((IMethodReturnMessage)WrappedMessage).MethodSignature; }
  89                 }
  90
  91                 public virtual int OutArgCount {
  92                         get { return _outArgInfo.GetInOutArgCount(); }
  93                 }
  94
  95                 public virtual object[] OutArgs {
  96                         get { return _outArgInfo.GetInOutArgs (_args); }
  97                 }
  98
  99                 public virtual IDictionary Properties
 100                 {
 101                         get {
 102                                 if (_properties == null) _properties = new DictionaryWrapper(this, WrappedMessage.Properties);
 103                                 return _properties;
 104                         }
 105                 }
 106
 107                 public virtual object ReturnValue {
 108                         get { return _return; }
 109                         set { _return = value; }
 110                 }
 111
 112                 public virtual string TypeName {
 113                         get { return ((IMethodReturnMessage)WrappedMessage).TypeName; }
 114                 }
 115
 116                 public virtual string Uri
 117                 {
 118                         get { return ((IMethodReturnMessage)WrappedMessage).Uri; }
 119                         set { Properties["__Uri"] = value; }
 120                 }
 121
 122                 public virtual object GetArg (int argNum)
 123                 {
 124                         return _args[argNum];
 125                 }
 126
 127                 public virtual string GetArgName (int index)
 128                 {
 129                         return ((IMethodReturnMessage)WrappedMessage).GetArgName(index);
 130                 }
 131
 132                 public virtual object GetOutArg (int argNum)
 133                 {
 134                         return _args [_outArgInfo.GetInOutArgIndex (argNum)];
 135                 }
 136
 137                 public virtual string GetOutArgName (int index)
 138                 {
 139                         return _outArgInfo.GetInOutArgName(index);
 140                 }
 141
 142                 class DictionaryWrapper : MethodReturnDictionary
 143                 {
 144                         IDictionary _wrappedDictionary;
 145                         static string[] _keys = new string[] {"__Args", "__Return"};
 146
 147                         public DictionaryWrapper(IMethodReturnMessage message, IDictionary wrappedDictionary) : base (message)
 148                         {
 149                                 _wrappedDictionary = wrappedDictionary;
 150                                 MethodKeys = _keys;
 151                         }
 152
 153                         protected override IDictionary AllocInternalProperties()
 154                         {
 155                                 return _wrappedDictionary;
 156                         }
 157
 158                         protected override void SetMethodProperty (string key, object value)
 159                         {
 160                                 if (key == "__Args") ((MethodReturnMessageWrapper)_message)._args = (object[])value;
 161                                 else if (key == "__Return") ((MethodReturnMessageWrapper)_message)._return = value;
 162                                 else base.SetMethodProperty (key, value);
 163                         }
 164
 165                         protected override object GetMethodProperty (string key)
 166                         {
 167                                 if (key == "__Args") return ((MethodReturnMessageWrapper)_message)._args;
 168                                 else if (key == "__Return") return ((MethodReturnMessageWrapper)_message)._return;
 169                                 else return base.GetMethodProperty (key);
 170                         }
 171                 }
 172         }
 173 }