Support method level interception

[YuvalItzchakov]

I've been searching around to see if it is possible to use interceptors for method level interception, and came across the following from the docs:

"The InterceptorAttribute is defined in a way that allows you to put it not only on classes, but on any other target where custom attribute is allowed, like interface or a method. However Windsor will ignore the attribute unless it's on component's implementation class. This permissive behavior was introduced to allow people to add support for other targets by building custom extensions."

I think adding a fine grained control for interception at the method level would be a great thing for general purpose aspects such as logging, performance counters, etc.

[jonorossi]

Could you provide an example of what you'd like to do, maybe a code snippet/pseudocode.

My understanding of your request is currently what you do today with Castle DynamicProxy and/or Castle Windsor. Take a look at the DynamicProxy Introduction.

[YuvalItzchakov]

Right, so what im trying to do is create an interceptor which will be able to intercept at the method level, for example. Lets say i have class Foo with two methods:

public interface IFoo
{
    void Fooable();
    void Barable();
}

public class Foo : IFoo
{
    [Log]
    public void Fooable()
    {
        Console.WriteLine("In Fooable");
    }

    public void Barable()
    {
        Console.WriteLine("In Barable");
    }
}

I want to intercept only calls on Foo that have a LogAttribute. I don't want the entire class to be intercepted, but only specific methods.

Hope that's clearer. I came across this SO question: http://stackoverflow.com/questions/21148285/castle-windsor-interceptor-not-working-with-method-level-attribute which basically says you can't do that.

[kkozmic]

A IProxyGenerationHookcan help you do that

[kkozmic]

Can we close this issue? It looks like it's been resolved...

[jonorossi]

Let us know if IProxyGenerationHook doesn't fulfil your requirements, closing.