Rails rack middleware

class TestMiddleware
  def initialize(app)
    @app = app
  end
  
  def call(env)
    puts "------------------TestMiddleware--------------"
    #puts env.to_yaml
    @app.call(env)
  end
end

RackRouteTestApp::Application.routes.draw do
  root :to => TestMiddleware.new(NotesController.action(:index))