CHttpException

274     public function runController($route)
275     {
276         if(($ca=$this->createController($route))!==null)
277         {
278             list($controller,$actionID)=$ca;
279             $oldController=$this->_controller;
280             $this->_controller=$controller;
281             $controller->init();
282             $controller->run($actionID);
283             $this->_controller=$oldController;
284         }
285         else
286             throw new CHttpException(404,Yii::t('yii','Unable to resolve the request "{route}".',
287                 array('{route}'=>$route===''?$this->defaultController:$route)));
288     }
289 
290     /**
291      * Creates a controller instance based on a route.
292      * The route should contain the controller ID and the action ID.
293      * It may also contain additional GET variables. All these must be concatenated together with slashes.
294      *
295      * This method will attempt to create a controller in the following order:
296      * 

297      * 
If the first segment is found in {@link controllerMap}, the corresponding
298      * controller configuration will be used to create the controller;