/**
* Verifies the "completeness" of podcast resource sent over the wire
*
* @param podcast
* @return
*/
private boolean isFullUpdate(Podcast podcast) {
return podcast.getId() == null
|| podcast.getFeed() == null
|| podcast.getLinkOnPodcastpedia() == null
|| podcast.getTitle() == null
|| podcast.getDescription() == null;
}
@Transactional("transactionManager")
public void updatePartiallyPodcast(Podcast podcast) throws AppException {
// do a validation to verify existence of the resource
Podcast verifyPodcastExistenceById = verifyPodcastExistenceById(podcast.getId());
if (verifyPodcastExistenceById == null) {
throw new AppException(
Response.Status.NOT_FOUND.getStatusCode(),
404,
"The resource you are trying to update does not exist in the database",
"Please verify existence of data in the database for the id - " + podcast.getId(),
AppConstants.BLOG_POST_URL);
}
copyPartialProperties(verifyPodcastExistenceById, podcast);
podcastDao.updatePodcast(new PodcastEntity(verifyPodcastExistenceById));
}
private void validateInputForCreation(Podcast podcast) throws AppException {
if (podcast.getFeed() == null) {
throw new AppException(
Response.Status.BAD_REQUEST.getStatusCode(),
400,
"Provided data not sufficient for insertion",
"Please verify that the feed is properly generated/set",
AppConstants.BLOG_POST_URL);
}
if (podcast.getTitle() == null) {
throw new AppException(
Response.Status.BAD_REQUEST.getStatusCode(),
400,
"Provided data not sufficient for insertion",
"Please verify that the title is properly generated/set",
AppConstants.BLOG_POST_URL);
}
// etc...
}
/** ******************* UPDATE-related methods implementation ********************* */
@Transactional("transactionManager")
public void updateFullyPodcast(Podcast podcast) throws AppException {
// do a validation to verify FULL update with PUT
if (isFullUpdate(podcast)) {
throw new AppException(
Response.Status.BAD_REQUEST.getStatusCode(),
400,
"Please specify all properties for Full UPDATE",
"required properties - id, title, feed, lnkOnPodcastpedia, description",
AppConstants.BLOG_POST_URL);
}
Podcast verifyPodcastExistenceById = verifyPodcastExistenceById(podcast.getId());
if (verifyPodcastExistenceById == null) {
throw new AppException(
Response.Status.NOT_FOUND.getStatusCode(),
404,
"The resource you are trying to update does not exist in the database",
"Please verify existence of data in the database for the id - " + podcast.getId(),
AppConstants.BLOG_POST_URL);
}
podcastDao.updatePodcast(new PodcastEntity(podcast));
}
/** ******************* Create related methods implementation ********************* */
@Transactional("transactionManager")
public Long createPodcast(Podcast podcast) throws AppException {
validateInputForCreation(podcast);
// verify existence of resource in the db (feed must be unique)
PodcastEntity podcastByFeed = podcastDao.getPodcastByFeed(podcast.getFeed());
if (podcastByFeed != null) {
throw new AppException(
Response.Status.CONFLICT.getStatusCode(),
409,
"Podcast with feed already existing in the database with the id " + podcastByFeed.getId(),
"Please verify that the feed and title are properly generated",
AppConstants.BLOG_POST_URL);
}
return podcastDao.createPodcast(new PodcastEntity(podcast));
}