public InputStream loadStream(Thumbnail thumb) {
InputStream inputStream = null;
if (thumb != null) {
inputStream = new ByteArrayInputStream(Base64.decodeBase64(thumb.getImage()));
}
return inputStream;
}
public synchronized String save(Thumbnail thumbnail) {
EntityTransaction transaction = em.getTransaction();
String result = "{\"success\": false}";
try {
transaction.begin();
em.merge(thumbnail);
transaction.commit();
result = "{\"success\": true}";
updateDirtyBits(thumbnail.getItemId());
} catch (Exception ex) {
if (transaction.isActive()) {
transaction.rollback();
}
}
return result;
}