/**
* Deletes a tag.
*
* @param tagId Tag ID
* @param userId User ID
*/
public void delete(String tagId, String userId) {
EntityManager em = ThreadLocalContext.get().getEntityManager();
// Get the tag
Query q = em.createQuery("select t from Tag t where t.id = :id and t.deleteDate is null");
q.setParameter("id", tagId);
Tag tagDb = (Tag) q.getSingleResult();
// Delete the tag
Date dateNow = new Date();
tagDb.setDeleteDate(dateNow);
// Delete linked data
q =
em.createQuery(
"update DocumentTag dt set dt.deleteDate = :dateNow where dt.tagId = :tagId and dt.deleteDate is not null");
q.setParameter("dateNow", dateNow);
q.setParameter("tagId", tagId);
q.executeUpdate();
q =
em.createQuery(
"update Acl a set a.deleteDate = :dateNow where a.sourceId = :tagId and a.deleteDate is null");
q.setParameter("tagId", tagId);
q.setParameter("dateNow", dateNow);
q.executeUpdate();
// Create audit log
AuditLogUtil.create(tagDb, AuditLogType.DELETE, userId);
}
/**
* Gets a tag by its ID.
*
* @param id Tag ID
* @return Tag
*/
public Tag getById(String id) {
EntityManager em = ThreadLocalContext.get().getEntityManager();
try {
return em.find(Tag.class, id);
} catch (NoResultException e) {
return null;
}
}
/**
* Creates a new tag.
*
* @param tag Tag
* @param userId User ID
* @return New ID
*/
public String create(Tag tag, String userId) {
// Create the UUID
tag.setId(UUID.randomUUID().toString());
// Create the tag
EntityManager em = ThreadLocalContext.get().getEntityManager();
tag.setCreateDate(new Date());
em.persist(tag);
// Create audit log
AuditLogUtil.create(tag, AuditLogType.CREATE, userId);
return tag.getId();
}
/**
* Update a tag.
*
* @param tag Tag to update
* @param userId User ID
* @return Updated tag
*/
public Tag update(Tag tag, String userId) {
EntityManager em = ThreadLocalContext.get().getEntityManager();
// Get the tag
Query q = em.createQuery("select t from Tag t where t.id = :id and t.deleteDate is null");
q.setParameter("id", tag.getId());
Tag tagFromDb = (Tag) q.getSingleResult();
// Update the tag
tagFromDb.setName(tag.getName());
tagFromDb.setColor(tag.getColor());
tagFromDb.setParentId(tag.getParentId());
// Create audit log
AuditLogUtil.create(tagFromDb, AuditLogType.UPDATE, userId);
return tagFromDb;
}
/**
* Update tags on a document.
*
* @param documentId Document ID
* @param tagIdSet Set of tag ID
*/
public void updateTagList(String documentId, Set<String> tagIdSet) {
EntityManager em = ThreadLocalContext.get().getEntityManager();
// Get current tag links
Query q =
em.createQuery(
"select dt from DocumentTag dt where dt.documentId = :documentId and dt.deleteDate is null");
q.setParameter("documentId", documentId);
@SuppressWarnings("unchecked")
List<DocumentTag> documentTagList = q.getResultList();
// Deleting tags no longer linked
for (DocumentTag documentTag : documentTagList) {
if (!tagIdSet.contains(documentTag.getTagId())) {
documentTag.setDeleteDate(new Date());
}
}
// Adding new tag links
for (String tagId : tagIdSet) {
boolean found = false;
for (DocumentTag documentTag : documentTagList) {
if (documentTag.getTagId().equals(tagId)) {
found = true;
break;
}
}
if (!found) {
DocumentTag documentTag = new DocumentTag();
documentTag.setId(UUID.randomUUID().toString());
documentTag.setDocumentId(documentId);
documentTag.setTagId(tagId);
em.persist(documentTag);
}
}
}