@Transactional(noRollbackFor = Exception.class)
private void updatePodcast(List<Podcast> podcasts, Executor selectedExecutor) {
initUpdate();
log.info("Lancement de l'update");
log.info("Traitement de {} podcasts", podcasts.size());
podcasts
// Launch every update
.stream()
.map(
podcast ->
supplyAsync(() -> workerService.updaterOf(podcast))
.thenApplyAsync(updater -> updater.update(podcast), selectedExecutor))
.collect(
toSet()) // Terminal operation forcing evaluation of each element upper in the stream
// Get result of each update
.stream()
.map(this::wait)
.filter(tuple -> tuple != Updater.NO_MODIFICATION_TUPLE)
.peek((tuple) -> changeAndCommunicateUpdate(Boolean.TRUE))
.forEach(
tuple ->
podcastBusiness.save(
attachNewItemsToPodcast(tuple.first(), tuple.middle(), tuple.last())));
log.info("Fin du traitement des {} podcasts", podcasts.size());
finishUpdate();
}
public Podcast fetchPodcastInfoByUrl(String url) throws FindPodcastNotFoundException {
Finder specificFinder = workerService.getFinderByUrl(url);
if (specificFinder == null) {
return null;
}
return specificFinder.find(url);
}