/**
* Stores uploaded file "as it is" and adds database entry.
*
* @return ID of attachment in the database.
*/
@Override
public Attachment uploadFile(
String fileName, String contentType, User user, byte[] contents, String tags) {
if (log.isTraceEnabled()) {
log.trace(">> uploadFile()");
}
try {
if (contents.length > MAX_ZIP_SIZE) {
log.trace("File too large!");
throw new IOException("File too large.");
}
if (!checkUploadRights(user)) {
return null;
}
Attachment a = prepareAttachment(fileName, contentType, user, contents, tags);
em.persist(a);
Set<User> uset = new HashSet();
uset.add(user);
a.setUser(uset);
em.merge(a);
if (log.isTraceEnabled()) {
log.trace("<< uploadFile(): " + a);
}
return a;
} catch (Exception ex) {
log.error("uploadFile(): Failed to upload file.", ex);
return null;
}
}
/**
* Stores uploaded file in database. If there are several files, they are compressed into zip
* archive (with filename = user_login.zip).
*
* @param user Owner of the attachment
* @param files List of uploaded files to be saved into database
* @return ID of attachment in the database or null if operation failed.
*/
@Override
public Attachment uploadFiles(User user, List<ReshakaUploadedFile> files, String tags) {
if (log.isTraceEnabled()) {
log.trace(">> uploadFiles(): " + files);
}
if (!checkUploadRights(user)) {
return null;
}
if (files.isEmpty()) {
if (log.isDebugEnabled()) {
log.debug("List of files is empty! Nothing to compress.");
}
return null;
}
try {
Attachment att = prepareAttachment(user, files, tags);
if (att.getSize() > MAX_ZIP_SIZE) {
if (log.isTraceEnabled()) {
log.trace("File too large!");
}
throw new IOException("File too large.");
}
em.persist(att);
Set<User> uset = new HashSet();
uset.add(user);
att.setUser(uset);
em.merge(att);
if (log.isTraceEnabled()) {
log.trace("<< uploadFiles(): " + att);
}
return att;
} catch (Exception ex) {
log.error("uploadFiles(): Failed to upload files. ", ex);
return null;
}
}
@Override
public Attachment reuploadFiles(
User user, Long attachmentId, List<ReshakaUploadedFile> files, String tags) {
if (attachmentId == null) {
return uploadFiles(user, files, tags);
}
if (!checkUploadRights(user)) {
return null;
}
Attachment original = em.find(Attachment.class, attachmentId);
if (original == null) {
return null;
}
Set<User> u = original.getUser();
removeAttachmentFromDisk(original);
original = prepareAttachment(user, files, tags);
original.setId(attachmentId);
original.setUser(u);
return em.merge(original);
}