How to get the currently required controller name

Hi , could i get the controller name in controllers/application_controller.rb file ?
Thanks guys.

class Animal
  def self.inherited(inheritor)
    puts inheritor
  end
end

class Dog < Animal
end

--output:--
Dog

I got it by params[:controller] in rails 3.0.9

If you mean the calling controller...

params[:controller]

HTH,
Dan