Doesn't intercepting base method?

[veihan]

Hello

Probably this is a duplicate... but I will describe my problem anyway.

Lets say I have classes:

    public abstract class Foo

    {

        public virtual void DoSomething()

        {

            Console.WriteLine("Doing something base");

        }

    }

    public class Bar : Foo

    {

        public override void DoSomething()

        {

            Console.WriteLine("Doing something");

            base.DoSomething();

        }

    }

and interceptor:

    public class MyAspect : IInterceptor

    {

        public void Intercept(IInvocation invocation)

        {

            Console.WriteLine("Method is intercepted...");

            invocation.Proceed();

        }

    }

    public class MyInterceptorSelector : IModelInterceptorsSelector

    {

        public bool HasInterceptors(ComponentModel model)

        {

            return typeof(MyAspect) != model.Implementation &&

            model.Implementation.Namespace.StartsWith("Dp2");

        }

        public InterceptorReference[] SelectInterceptors(ComponentModel model, InterceptorReference[] interceptors)

        {

            var interceptorss = interceptors.ToList();

            interceptorss.Add(InterceptorReference.ForType<MyAspect>());

            return interceptorss.ToArray();

        }

    }

and registration:

    public class Bootstrapper

    {

        public Bootstrapper(IWindsorContainer container)

        {

            Container = container;

        }

        public IWindsorContainer Container { get; private set; }

        public void Run()

        {

            Container.Register(Component.For<MyAspect>());

            Container.Kernel.ProxyFactory.AddInterceptorSelector(new MyInterceptorSelector());

            Container.Register(Component.For<Foo>().ImplementedBy<Bar>());

        }

    }

in test:

    [TestFixture]

    public class UnitTest1

    {

        [Test]

        public void TestMethod1()

        {

            var bts = new Bootstrapper(new WindsorContainer());

            bts.Run();

            var bar = bts.Container.Resolve<Foo>();

            bar.DoSomething();

        }

    }

output is:

Method is intercepted...

Doing something

Doing something base

ergo interceptor hasn't been called on base method execution.

Is there a way to make this work?

[Jonathon Rossi]

Interceptors in Windsor are implemented by our DynamicProxy library, which works by creating a class (e.g. BarProxy) at runtime that inherits your class (e.g. Bar) and overrides its virtual methods, you can see this in the debugger or if you print out `bar.GetType().FullName`. When the overridden method is called it delegates off to your interceptor which must call Proceed otherwise the base method (i.e. Bar::DoSomething) isn't called. Below is a really simplified idea of what the runtime generated proxy class looks like:

    public class BarProxy : Bar

    {

        public override void DoSomething()

        {

            interceptor.Intercept(invocation);

        }

    }

It should now be clear the reason the interceptor isn't called for both Foo::DoSomething and Bar::DoSomething.

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[veihan]

Ok I understand you. It can't by done with current dynamic proxy impl behind interceptor.

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