Unexpected Error from Exception Handling Block in WCF for FaultExeption and FaultException

See more:

C#

ASP.NET

WCF

enterprise

, +

Hi

I am getting an unexpected error from Enterprise Library Exception Handling Block v5 in WCF.

All I want to do is NotifyRethrow for FaultExeption and FaultException<tdetail>, so client sees the FaultContract on their side

Please read further. Thanks in advance for any help.

I am working on a project where I had to use ExceptionShielding in WCF and not try-catch as we are logging all possible exceptions.

But there are cases where I just have to send information to the client in a Custom Data Fault Contract.

The following is a reproduction project of my actual solution:

Service Interface:

[ServiceContract]
    public interface IService1
    {

        [OperationContract]
        [FaultContract(typeof(ServiceFaulty))]
        string GetData(int value);
    }

    [DataContract]
    public class ServiceFaulty
    {
        public Guid ErrorID { get; set; }
        public String Message { get; set; }
    }

Service Implementation:

[ExceptionShielding("Policy")]
    public class Service1 : IService1
    {
        public string GetData(int value)
        {
            //Comment first line to trigger second behavior for testing 
            throw new Exception("Service Level Exception Ocured");
            throw new FaultException("Fault Exception Detected");
            return string.Format("You entered: {0}", value);
        }

    }

Following is my configuration:

<exceptionHandling>
    <exceptionPolicies>
      <add name="Policy">
        <exceptionTypes>
          <add name="FaultException" type="System.ServiceModel.FaultException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
            postHandlingAction="NotifyRethrow" />
          <add name="All Exceptions" type="System.Exception, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
            postHandlingAction="ThrowNewException">
            <exceptionHandlers>
              <add type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.WCF.FaultContractExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.WCF, Version=5.0.505.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                exceptionMessage="Oops we goofed!" faultContractType="WcfService.ServiceFaulty, WcfService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"
                name="Fault Contract Exception Handler">
                <mappings>
                  <add source="{Guid}" name="ErrorID" />
                </mappings>
              </add>
              <add name="Logging Exception Handler" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=5.0.505.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                logCategory="General" eventId="100" severity="Error" title="Enterprise Library Exception Handling"
                formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling"
                priority="0" />
            </exceptionHandlers>
          </add>
        </exceptionTypes>
      </add>
    </exceptionPolicies>
  </exceptionHandling>

If you see I am trying to test two different behavior.
One for AllException where I want to Log all exceptions and throw a Custom Fault Contract.
The other I want to Bubble Up all the FaultException(s) to the Client Side raised by my code, so I am doing NotifyReThrow.

The first scenario is working fine but in the case I want to bubble up FaultContracts, I am getting the following error:

System.ServiceModel.FaultException: An error has occurred while consuming this service. Please contact your administrator for more information. Error ID: 7e1271c6-c198-428e-aa4f-89c00a194a36

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)


Also, I am getting the same error If Itry to throw any FaultException<tdetail> object from my service.

The Exception shielding deletes the FaultContract, throws a FaultException object for client and gives me the same Contact your administrator with a Random Guid error as showed above. Again, All I want to do is NotifyRethrow for FaultExeption and FaultException<tdetail>, so client sees the FaultContract on their side