mcs/class/corlib/System.Runtime.Remoting.Activation/ContextLevelActivator.cs

   1 //
   2 // System.Runtime.Remoting.Activation.ContextLevelActivator.cs
   3 //
   4 // Author: Lluis Sanchez Gual (lluis@ideary.com)
   5 //
   6 // (C) 2003, Lluis Sanchez Gual
   7 //
   8
   9 //
  10 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.Runtime.Remoting.Messaging;
  34 using System.Runtime.Remoting.Contexts;
  35
  36 namespace System.Runtime.Remoting.Activation
  37 {
  38         [Serializable]
  39         internal class ContextLevelActivator: IActivator
  40         {
  41                 IActivator m_NextActivator;
  42
  43                 public ContextLevelActivator (IActivator next)
  44                 {
  45                         m_NextActivator = next;
  46                 }
  47
  48                 public ActivatorLevel Level
  49                 {
  50                         get { return ActivatorLevel.Context; }
  51                 }
  52
  53                 public IActivator NextActivator
  54                 {
  55                         get { return m_NextActivator; }
  56                         set { m_NextActivator = value; }
  57                 }
  58
  59                 public IConstructionReturnMessage Activate (IConstructionCallMessage ctorCall)
  60                 {
  61                         ServerIdentity identity = RemotingServices.CreateContextBoundObjectIdentity (ctorCall.ActivationType);
  62                         RemotingServices.SetMessageTargetIdentity (ctorCall, identity);
  63
  64                         ConstructionCall call = ctorCall as ConstructionCall;
  65                         if (call == null || !call.IsContextOk)
  66                         {
  67                                 identity.Context = Context.CreateNewContext (ctorCall);
  68                                 Context oldContext = Context.SwitchToContext (identity.Context);
  69
  70                                 try
  71                                 {
  72                                         return m_NextActivator.Activate (ctorCall);
  73                                 }
  74                                 finally
  75                                 {
  76                                         Context.SwitchToContext (oldContext);
  77                                 }
  78                         }
  79                         else
  80                                 return m_NextActivator.Activate (ctorCall);
  81                 }
  82         }
  83 }