mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/ErrorProcessingHandler.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Text;
   4 using System.ServiceModel.Channels;
   5 using System.ServiceModel;
   6
   7 namespace System.ServiceModel.Dispatcher
   8 {
   9         internal class ErrorProcessingHandler : BaseRequestProcessorHandler
  10         {
  11                 public ErrorProcessingHandler (IChannel channel)
  12                 {
  13                         duplex = channel as IDuplexChannel;
  14                 }
  15
  16                 IDuplexChannel duplex;
  17
  18                 protected override bool ProcessRequest (MessageProcessingContext mrc)
  19                 {
  20                         Exception ex = mrc.ProcessingException;
  21                         DispatchRuntime dispatchRuntime = mrc.OperationContext.EndpointDispatcher.DispatchRuntime;
  22
  23                         //invoke all user handlers
  24                         ChannelDispatcher channelDispatcher = dispatchRuntime.ChannelDispatcher;
  25                         foreach (IErrorHandler handler in channelDispatcher.ErrorHandlers)
  26                                 if (handler.HandleError (ex))
  27                                         break;
  28
  29                         // FIXME: remove them. FaultConverter also covers errors like EndpointNotFoundException, which this handler never covers. And checking converter twice is extraneous, so this part is just extraneous.
  30                         // FIXME: instead, FaultContractInfos should be checked
  31                         FaultConverter fc = FaultConverter.GetDefaultFaultConverter (dispatchRuntime.ChannelDispatcher.MessageVersion);
  32                         Message res = null;
  33                         if (!fc.TryCreateFaultMessage (ex, out res))
  34                                 throw ex;
  35                         mrc.ReplyMessage = res;
  36
  37                         if (duplex != null)
  38                                 mrc.Reply (duplex, true);
  39                         else
  40                                 mrc.Reply (true);
  41                         return false;
  42                 }
  43         }
  44 }