@Override
public void updateComment(Comment comment)
throws NonExistingEntityException, IllegalArgumentException {
if (comment == null) {
throw new IllegalArgumentException("Comment is null.");
}
if (comment.getId() == null) {
throw new IllegalArgumentException("Comment id is null.");
}
commentCache = provider.getCacheContainer().getCache("commentcache");
if (!commentCache.containsKey(comment.getId())) {
throw new NonExistingEntityException("Comment does not exist in cache.");
}
try {
userTransaction.begin();
commentCache.put(comment.getId(), comment);
userTransaction.commit();
logger.info("Comment with id: " + comment.getId() + " was updated in cache store.");
} catch (Exception e) {
if (userTransaction != null) {
try {
userTransaction.rollback();
} catch (Exception e1) {
e1.printStackTrace();
}
}
logger.error("Error while updating comment.", e);
throw new CacheException(e);
}
}
@Override
public void createComment(Comment comment)
throws IllegalEntityException, IllegalArgumentException, CacheException {
if (comment == null) {
throw new IllegalArgumentException("Comment is null.");
}
if (comment.getId() != null) {
throw new IllegalEntityException(
"Comment id is not null, Comment entity cannot be put into cache.");
}
commentCache = provider.getCacheContainer().getCache("commentcache");
comment.setId(UUIDStringGenerator.generateCommentId());
try {
userTransaction.begin();
commentCache.put(comment.getId(), comment);
userTransaction.commit();
logger.info(
"Comment with id: "
+ comment.getId()
+ ", songID"
+ comment.getSongId()
+ " was inserted to cache store.");
} catch (Exception e) {
if (userTransaction != null) {
try {
userTransaction.rollback();
} catch (Exception e1) {
e1.printStackTrace();
}
}
logger.error("Error while putting comment to the comment cache.", e);
throw new CacheException(e);
}
}