function addRoutesToRouter(RtNode $router)
 {
     $classes = $this->listControllers();
     foreach ($classes as $class) {
         if (Library::classExists($this->controllersPrefix . $class)) {
             $instance = new $class($this);
         } else {
             continue;
         }
         if ($instance instanceof Controller) {
             $routes = Controller::getRoutes($instance);
             if (!is_array($routes)) {
                 continue;
             }
             foreach ($routes as $route) {
                 $router->addRoute($this, $route, $this->routingPrefix);
             }
         }
     }
     return $router;
 }