controller (Merb::Request)

    # File lib/merb-core/dispatch/request.rb, line 52
        def controller
          unless params[:controller]
            raise ControllerExceptions::NotFound,
              "Route matched, but route did not specify a controller.\n" +
              "Did you forgot to add :controller => \"people\" or :controller " +
              "segment to route definition?\nHere is what's specified:\n" +
              route.inspect
          end
          path = [params[:namespace], params[:controller]].compact.join(Merb::Const::SLASH)
          controller = path.snake_case.to_const_string

          begin
            Object.full_const_get(controller)
          rescue NameError => e
            msg = "Controller class not found for controller `#{path}'"
            Merb.logger.warn!(msg)
            raise ControllerExceptions::NotFound, msg
          end
        end