Is there safe way to resolve component from Castle.Windsor?

Question

I have my implementation of ControllerFactory for handling constructor injection in controllers, however I want to use default way to resolve controllers in case if some of them are not registered:

public class WindsorControllerFactory : DefaultControllerFactory
{
    private readonly IWindsorContainer _container;
    public WindsorControllerFactory(IWindsorContainer container)
    {
        _container = container;
    }

    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
    {
        if (controllerType != null)
        {
            try
            {
                return _container.Resolve(controllerType) as IController;
            }
            catch(Exception ex)
            {
                return base.GetControllerInstance(requestContext, controllerType);
            }
        }
        else
        {
            return base.GetControllerInstance(requestContext, controllerType);
        }
    }
}

It works, but I really would like to avoid exceptions

Answer 1

Use container.Kernel.HasComponent(Type type):

bool isRegistered;
var container = new WindsorContainer();

isRegistered = container.Kernel.HasComponent(typeof(IFoo));
Console.WriteLine(isRegistered);

container.Register(Component.For<IFoo>().ImplementedBy<Foo>());
isRegistered = container.Kernel.HasComponent(typeof(IFoo));
Console.WriteLine(isRegistered);

This outputs:

False
True