public void forceUpdatePodcast(Integer id) {
   log.info("Lancement de l'update forcé");
   Podcast podcast = podcastBusiness.findOne(id);
   podcast.setSignature("");
   podcast = podcastBusiness.save(podcast);
   updatePodcast(podcast.getId());
 }
 public void updatePodcast(Integer id) {
   updatePodcast(Collections.singletonList(podcastBusiness.findOne(id)), manualExecutor);
 }