Castle 3.1, FNH and RhinoServiceBus

[Matt]

Hi,

I've recently upgraded some code from an versions of the subject libraries and now I'm having problems with previously working code throwing a System.ArgumentException with a message of "An item with the same key has already been added".

I'm using a MessageModule implementation to handle sessions,  creating a session on the messagearrived event and disposing of it on MessageProcessingCompleted.  Inside my message module:

  

      [ThreadStatic]

     private static ITransaction _transaction;

       //c'tor

        public NHibernateMessageModule(ISessionFactory sessionFactory)

        {

            _sessionFactory = sessionFactory;

           

        }

        public ISession CurrentSession

        {

            get { return _session; }

        }

        //MessageArrived 

        public bool HandleBeginMessage(CurrentMessageInformation messageInfo)

        {

                 _session = _sessionFactory.OpenSession();

                 return false;

        }

       //Message Completed

        public void HandleEndMessage(CurrentMessageInformation messageInfo, Exception exception)

        {

                _session.Dispose();

               _session = null;

        }

I've removed error handling and some transaction scope code etc for clarity RhinoServiceBus injects the sessionFactory in using Castle.

The components are registered in an installer using 

       Component.For<ISessionFactory>().Instance(sessionFactory),

                Component.For<ISession>().UsingFactoryMethod((k) =>

                    {

                        NHibernateMessageModule module = (NHibernateMessageModule)k.Resolve<NHibernateMessageModule>();

                        return module.CurrentSession;

                    }).LifeStyle.Transient,

This only seems to happen when a message consumer requires another castle managed component that also requires an ISession instance.

ie.  

     //C'tor

     MyMessageConsumer(MyObject obj, ISession session)

     { 

        _obj = obj;

       _session = session;
     }

    MyObject(ISession session)

    {

        _session = session;
    }

If I take out the requirement for ISession on MyObject.  Previously to this I was using Castle 3.0, where, as I said, this all worked.  Any ideas?

Thanks in advance,

Matt