/**
  * Gets a log file
  *
  * @param $id The line of the cron in the cron table
  * @param $type The type of file, log or error
  * @return \Symfony\Component\HttpFoundation\Response
  */
 public function fileAction($id, $type)
 {
     $cm = new CronManager();
     $crons = $cm->get();
     $cron = $crons[$id];
     $data = array();
     $data['file'] = $type == 'log' ? $cron->getLogFile() : $cron->getErrorFile();
     $data['content'] = \file_get_contents($data['file']);
     $serializer = new Serializer(array(), array('json' => new JsonEncoder()));
     return new Response($serializer->serialize($data, 'json'));
 }