WCF Serialization Exception

[ultraviolet]

Hello Everyone,

I have successfully completed Davy's HelloWorld example and everything works fine.

Now, I'm trying to create my host as a WCF Service Application and I receive the following error on my client

The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:requests. The InnerException message was 'Error in line 1 position 370. Element 'http://schemas.datacontract.org/2004/07/Agatha.Common:Request' contains data from a type that maps to the name 'http://schemas.datacontract.org/2004/07/Sample.Common.RequestsAndResponses:HelloWorldRequest'. The deserializer has no knowledge of any type that maps to this name. Consider using a DataContractResolver or add the type corresponding to 'HelloWorldRequest' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer.'.  Please see InnerException for more details.

 I believe the issue is that container is not getting initialized on the host. If I go back to the original HelloWord example that uses an ASP.NET Web Application and comment out the ComponentRegistration.Register(); from the Application_Start() I can recreate the error. ComponentRegistration.Register() contains:

new ServiceLayerConfiguration(Assembly.GetExecutingAssembly(), typeof(HelloWorldRequest).Assembly,

                typeof(Agatha.Castle.Container)).Initialize();

So, my question is how do I get this to register in the WCF Service Application?

Thanks for your help,

Dave

 

[ultraviolet]

I've tried a couple different approaches and I think I'm getting closer. Here is my question now (posted from stackoverflow):

I have developed an WCF Service Library that uses Agatha RRSL, but I can not figure out how to initialize the container. If I recreate this service in an ASP.NET Web Application, I can call the initialization code from the Global.asax.cs Application_Start() and everything works perfectly. The initialization code is:

public static class ComponentRegistration
{
    public static void Register()
    {
      new ServiceLayerConfiguration(Assembly.GetExecutingAssembly(),
      typeof(HelloWorldRequest).Assembly,
      typeof(Agatha.Castle.Container)).Initialize();
    }
}

In the WCF Service Library, I added an App_Code folder with a class that calls:

public static void AppInitialize()
{
    ComponentRegistration.Register();
}

That didn't work as my client app throws an exception that there is no response with that type. I also tried adding a component to the web.config file, but I never got that even close to working.

I also tried to create a custom ServiceHost that does the initialization:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ServiceModel;
using System.ServiceModel.Activation;
using Agatha.ServiceLayer;
using System.Reflection;
using Sample.Common.RequestsAndResponses;

namespace Sample.ServiceLayer.WCFHost
{
    public class CustomServiceHostFactory : ServiceHostFactory
    {
        public CustomServiceHostFactory()
        {
            new ServiceLayerConfiguration(Assembly.GetExecutingAssembly(), typeof(HelloWorldRequest).Assembly,
                typeof(Agatha.Castle.Container)).Initialize();
        }

        protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses)
        {
            return new CustomServiceHost(serviceType, baseAddresses);
        }
    }

    public class CustomServiceHost : ServiceHost
    {
        public CustomServiceHost()
        {
        }

        public CustomServiceHost(Type serviceType, params Uri[] baseAddresses)
            : base(serviceType, baseAddresses)
        {
        }

        protected override void OnOpening()
        {
            base.OnOpening();
        }

        protected override void OnClosing()
        {
            base.OnClosing();
        }

        protected override void ApplyConfiguration()
        {
            base.ApplyConfiguration();
        }
    }
}

However, I get the same exception on my client:

System.InvalidOperationException was unhandled
  Message=There is no response with type Sample.Common.RequestsAndResponses.HelloWorldResponse. Maybe you called Clear before or forgot to add appropriate request first.
  Source=Agatha.Common
  StackTrace:
       at Agatha.Common.RequestDispatcher.Get[TResponse]() in c:\src\Agatha\Agatha.Common\RequestDispatcher.cs:line 125
       at Agatha.Common.RequestDispatcher.Get[TResponse](Request request) in c:\src\Agatha\Agatha.Common\RequestDispatcher.cs:line 150
       at ConsoleApplication1.Program.Main(String[] args) in C:\Users\ultraviolet\Documents\Visual Studio 2010\Projects\AgathaHelloWorld\ConsoleApplication1\Program.cs:line 20
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

What approach should I take to get the WCF Service Library to run my initialization code so that the host returns the correct type? Any guidance would be much appreciated. Thanks.