mcs/class/System.ServiceModel/System.ServiceModel/ClientRealProxy.cs

   1 //
   2 // ClientRealProxy.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2011 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 #if !DISABLE_REAL_PROXY
  29 using System;
  30 using System.Collections.Generic;
  31 using System.Linq;
  32 using System.Reflection;
  33 using System.Runtime.Remoting;
  34 using System.Runtime.Remoting.Messaging;
  35 using System.Runtime.Remoting.Proxies;
  36 using System.ServiceModel.Channels;
  37 using System.ServiceModel.Description;
  38 using System.ServiceModel.Dispatcher;
  39 using System.ServiceModel.MonoInternal;
  40 using System.Threading;
  41
  42 namespace System.ServiceModel
  43 {
  44         class ClientRealProxy : RealProxy, IRemotingTypeInfo
  45         {
  46                 public ClientRealProxy (Type type, IInternalContextChannel channel, bool isDuplex)
  47                         : base (type)
  48                 {
  49                         this.channel = channel;
  50                         this.isDuplex = isDuplex;
  51                 }
  52
  53                 bool isDuplex;
  54                 IInternalContextChannel channel;
  55                 Dictionary<object,object[]> saved_params = new Dictionary<object,object[]> ();
  56
  57                 // It is used for such case that EndProcess() gets invoked
  58                 // before storing params is done after BeginProcess().
  59                 ManualResetEvent wait = new ManualResetEvent (false);
  60
  61                 #region IRemotingTypeInfo
  62
  63                 public virtual string TypeName { get; set; }
  64
  65                 static bool CanCastTo<T> (Type type)
  66                 {
  67                         return typeof (T) == type || typeof (T).GetInterfaces ().Contains (type);
  68                 }
  69
  70                 public virtual bool CanCastTo (Type t, object o)
  71                 {
  72                         if (CanCastTo<IClientChannel> (t))
  73                                 return true;
  74 #if !MOBILE
  75                         if (isDuplex && CanCastTo<IDuplexContextChannel> (t))
  76                                 return true;
  77 #endif
  78                         return false;
  79                 }
  80
  81                 #endregion
  82
  83                 public override IMessage Invoke (IMessage inputMessage)
  84                 {
  85                         try {
  86                                 return DoInvoke (inputMessage);
  87                         } catch (TargetInvocationException ex) {
  88                                 if (ex.InnerException != null)
  89                                         throw ex.InnerException;
  90                                 throw;
  91                         }
  92                 }
  93
  94                 IMessage DoInvoke (IMessage inputMessage)
  95                 {
  96                         var inmsg = (IMethodCallMessage) inputMessage;
  97                         var od = channel.Contract.Operations.FirstOrDefault (o => inmsg.MethodBase.Equals (o.SyncMethod) || inmsg.MethodBase.Equals (o.BeginMethod) || inmsg.MethodBase.Equals (o.EndMethod));
  98                         if (od == null) {
  99                                 // Then IContextChannel methods.
 100                                 var ret = inmsg.MethodBase.Invoke (channel, inmsg.InArgs);
 101                                 return new ReturnMessage (ret, null, 0, null, inmsg);
 102                         } else {
 103                                 object [] pl;
 104                                 MethodBase method = null;
 105                                 List<object> outArgs = null;
 106                                 object ret;
 107                                 if (inmsg.MethodBase.Equals (od.SyncMethod)) {
 108                                         // sync invocation
 109                                         pl = new object [inmsg.MethodBase.GetParameters ().Length];
 110                                         Array.Copy (inmsg.Args, pl, inmsg.ArgCount);
 111                                         ret = channel.Process (inmsg.MethodBase, od.Name, pl, OperationContext.Current);
 112                                         method = od.SyncMethod;
 113                                 } else if (inmsg.MethodBase.Equals (od.BeginMethod)) {
 114                                         // async invocation
 115                                         pl = new object [inmsg.ArgCount - 2];
 116                                         Array.Copy (inmsg.Args, 0, pl, 0, pl.Length);
 117
 118                                         ret = channel.BeginProcess (inmsg.MethodBase, od.Name, pl, (AsyncCallback) inmsg.Args [inmsg.ArgCount - 2], inmsg.Args [inmsg.ArgCount - 1]);
 119                                         saved_params [ret] = pl;
 120
 121                                         wait.Set ();
 122
 123                                 } else {
 124                                         var result = (IAsyncResult) inmsg.InArgs [0];
 125
 126                                         wait.WaitOne ();
 127                                         pl = saved_params [result];
 128                                         wait.Reset ();
 129                                         saved_params.Remove (result);
 130                                         ret = channel.EndProcess (inmsg.MethodBase, od.Name, pl, result);
 131                                         method = od.BeginMethod;
 132                                 }
 133
 134                                 if (method != null && method.GetParameters ().Any (pi => pi.IsOut || pi.ParameterType.IsByRef))
 135                                         return new ReturnMessage (ret, pl, pl.Length, null, inmsg);
 136                                 else
 137                                         return new ReturnMessage (ret, outArgs != null ? outArgs.ToArray () : null, outArgs != null ? outArgs.Count : 0, null, inmsg);
 138                         }
 139                 }
 140         }
 141 }
 142 #endif