/**
  * @param integer $appId
  *
  * @return Application
  *
  * @throws \Exception
  */
 public function getApp($appId)
 {
     $app = $this->enManager->getRepository(Application::clazz())->find($appId);
     if (null == $app) {
         throw new \Exception('Can\'t find Application by id <<' . $appId . '>>');
     }
     return $app;
 }