Question

I have problem intercepting a component registered to a class intance.

//this does not get intercepted
container.Register(Component.For<IService>().Instance(instanceService)
                                .Interceptors<Interceptor>());

Interceptor works if I register the component without using the class instance

//this get intercepted
container.Register(Component.For<IService>().ImplementedBy<SampleService>()
                         .Interceptors<Interceptor>());

Is this a bug or by design?

Thanks

This is unit test code.

    [Test]
    public void Test_Windsor_Interceptor_With_Instance_Component_Registration()
    {
        IService instanceService = new SampleService();

        var container = new WindsorContainer();
        container.Register(Component.For<Interceptor>());

        //this get intercepted
        container.Register(Component.For<IService>().ImplementedBy<SampleService>()
                            .Interceptors<Interceptor>());

        ////this does not get intercepted
        //container.Register(Component.For<IService>().Instance(instanceService)
        //                    .Interceptors<Interceptor>());

        var proxiedService = container.Resolve<IService>();

        proxiedService.DoSomething();


    }

    public class Interceptor : Castle.DynamicProxy.IInterceptor
    {
        public void Intercept(Castle.DynamicProxy.IInvocation invocation)
        {
            throw new System.NotImplementedException("Interceptor succesfully called but not implemented");
        }
    }

    public interface IService
    {
        void DoSomething();
    }

    public class SampleService : IService
    {
        public void DoSomething()
        {
            string dummy = string.Empty;
        }
    }

Answer 1

It’s by design. You can’t expect Windsor to wire up an interceptor if you’re manually instantiating the object.