/**
* For copyright information see the LICENSE document.
*/
package gwlpr.database.jpa;
import java.io.Serializable;
import javax.persistence.Query;
import javax.persistence.EntityNotFoundException;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import gwlpr.database.entities.Attribute;
import gwlpr.database.entities.Character;
import java.util.ArrayList;
import java.util.Collection;
import gwlpr.database.entities.EquippedSkill;
import gwlpr.database.entities.Skill;
import gwlpr.database.jpa.exceptions.IllegalOrphanException;
import gwlpr.database.jpa.exceptions.NonexistentEntityException;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
/**
*
* @author _rusty
*/
public class SkillJpaController implements Serializable
{
public SkillJpaController(EntityManagerFactory emf) {
this.emf = emf;
}
private EntityManagerFactory emf = null;
public EntityManager getEntityManager() {
return emf.createEntityManager();
}
public void create(Skill skill) {
if (skill.getCharacterCollection() == null) {
skill.setCharacterCollection(new ArrayList<Character>());
}
if (skill.getEquippedSkillCollection() == null) {
skill.setEquippedSkillCollection(new ArrayList<EquippedSkill>());
}
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Attribute attribute = skill.getAttribute();
if (attribute != null) {
attribute = em.getReference(attribute.getClass(), attribute.getId());
skill.setAttribute(attribute);
}
Collection<Character> attachedCharacterCollection = new ArrayList<Character>();
for (Character characterCollectionCharacterToAttach : skill.getCharacterCollection()) {
characterCollectionCharacterToAttach = em.getReference(characterCollectionCharacterToAttach.getClass(), characterCollectionCharacterToAttach.getId());
attachedCharacterCollection.add(characterCollectionCharacterToAttach);
}
skill.setCharacterCollection(attachedCharacterCollection);
Collection<EquippedSkill> attachedEquippedSkillCollection = new ArrayList<EquippedSkill>();
for (EquippedSkill equippedSkillCollectionEquippedSkillToAttach : skill.getEquippedSkillCollection()) {
equippedSkillCollectionEquippedSkillToAttach = em.getReference(equippedSkillCollectionEquippedSkillToAttach.getClass(), equippedSkillCollectionEquippedSkillToAttach.getEquippedSkillPK());
attachedEquippedSkillCollection.add(equippedSkillCollectionEquippedSkillToAttach);
}
skill.setEquippedSkillCollection(attachedEquippedSkillCollection);
em.persist(skill);
if (attribute != null) {
attribute.getSkillCollection().add(skill);
attribute = em.merge(attribute);
}
for (Character characterCollectionCharacter : skill.getCharacterCollection()) {
characterCollectionCharacter.getSkillCollection().add(skill);
characterCollectionCharacter = em.merge(characterCollectionCharacter);
}
for (EquippedSkill equippedSkillCollectionEquippedSkill : skill.getEquippedSkillCollection()) {
Skill oldSkillOfEquippedSkillCollectionEquippedSkill = equippedSkillCollectionEquippedSkill.getSkill();
equippedSkillCollectionEquippedSkill.setSkill(skill);
equippedSkillCollectionEquippedSkill = em.merge(equippedSkillCollectionEquippedSkill);
if (oldSkillOfEquippedSkillCollectionEquippedSkill != null) {
oldSkillOfEquippedSkillCollectionEquippedSkill.getEquippedSkillCollection().remove(equippedSkillCollectionEquippedSkill);
oldSkillOfEquippedSkillCollectionEquippedSkill = em.merge(oldSkillOfEquippedSkillCollectionEquippedSkill);
}
}
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public void edit(Skill skill) throws IllegalOrphanException, NonexistentEntityException, Exception {
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Skill persistentSkill = em.find(Skill.class, skill.getId());
Attribute attributeOld = persistentSkill.getAttribute();
Attribute attributeNew = skill.getAttribute();
Collection<Character> characterCollectionOld = persistentSkill.getCharacterCollection();
Collection<Character> characterCollectionNew = skill.getCharacterCollection();
Collection<EquippedSkill> equippedSkillCollectionOld = persistentSkill.getEquippedSkillCollection();
Collection<EquippedSkill> equippedSkillCollectionNew = skill.getEquippedSkillCollection();
List<String> illegalOrphanMessages = null;
for (EquippedSkill equippedSkillCollectionOldEquippedSkill : equippedSkillCollectionOld) {
if (!equippedSkillCollectionNew.contains(equippedSkillCollectionOldEquippedSkill)) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("You must retain EquippedSkill " + equippedSkillCollectionOldEquippedSkill + " since its skill field is not nullable.");
}
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
if (attributeNew != null) {
attributeNew = em.getReference(attributeNew.getClass(), attributeNew.getId());
skill.setAttribute(attributeNew);
}
Collection<Character> attachedCharacterCollectionNew = new ArrayList<Character>();
for (Character characterCollectionNewCharacterToAttach : characterCollectionNew) {
characterCollectionNewCharacterToAttach = em.getReference(characterCollectionNewCharacterToAttach.getClass(), characterCollectionNewCharacterToAttach.getId());
attachedCharacterCollectionNew.add(characterCollectionNewCharacterToAttach);
}
characterCollectionNew = attachedCharacterCollectionNew;
skill.setCharacterCollection(characterCollectionNew);
Collection<EquippedSkill> attachedEquippedSkillCollectionNew = new ArrayList<EquippedSkill>();
for (EquippedSkill equippedSkillCollectionNewEquippedSkillToAttach : equippedSkillCollectionNew) {
equippedSkillCollectionNewEquippedSkillToAttach = em.getReference(equippedSkillCollectionNewEquippedSkillToAttach.getClass(), equippedSkillCollectionNewEquippedSkillToAttach.getEquippedSkillPK());
attachedEquippedSkillCollectionNew.add(equippedSkillCollectionNewEquippedSkillToAttach);
}
equippedSkillCollectionNew = attachedEquippedSkillCollectionNew;
skill.setEquippedSkillCollection(equippedSkillCollectionNew);
skill = em.merge(skill);
if (attributeOld != null && !attributeOld.equals(attributeNew)) {
attributeOld.getSkillCollection().remove(skill);
attributeOld = em.merge(attributeOld);
}
if (attributeNew != null && !attributeNew.equals(attributeOld)) {
attributeNew.getSkillCollection().add(skill);
attributeNew = em.merge(attributeNew);
}
for (Character characterCollectionOldCharacter : characterCollectionOld) {
if (!characterCollectionNew.contains(characterCollectionOldCharacter)) {
characterCollectionOldCharacter.getSkillCollection().remove(skill);
characterCollectionOldCharacter = em.merge(characterCollectionOldCharacter);
}
}
for (Character characterCollectionNewCharacter : characterCollectionNew) {
if (!characterCollectionOld.contains(characterCollectionNewCharacter)) {
characterCollectionNewCharacter.getSkillCollection().add(skill);
characterCollectionNewCharacter = em.merge(characterCollectionNewCharacter);
}
}
for (EquippedSkill equippedSkillCollectionNewEquippedSkill : equippedSkillCollectionNew) {
if (!equippedSkillCollectionOld.contains(equippedSkillCollectionNewEquippedSkill)) {
Skill oldSkillOfEquippedSkillCollectionNewEquippedSkill = equippedSkillCollectionNewEquippedSkill.getSkill();
equippedSkillCollectionNewEquippedSkill.setSkill(skill);
equippedSkillCollectionNewEquippedSkill = em.merge(equippedSkillCollectionNewEquippedSkill);
if (oldSkillOfEquippedSkillCollectionNewEquippedSkill != null && !oldSkillOfEquippedSkillCollectionNewEquippedSkill.equals(skill)) {
oldSkillOfEquippedSkillCollectionNewEquippedSkill.getEquippedSkillCollection().remove(equippedSkillCollectionNewEquippedSkill);
oldSkillOfEquippedSkillCollectionNewEquippedSkill = em.merge(oldSkillOfEquippedSkillCollectionNewEquippedSkill);
}
}
}
em.getTransaction().commit();
} catch (Exception ex) {
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
Integer id = skill.getId();
if (findSkill(id) == null) {
throw new NonexistentEntityException("The skill with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public void destroy(Integer id) throws IllegalOrphanException, NonexistentEntityException {
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Skill skill;
try {
skill = em.getReference(Skill.class, id);
skill.getId();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The skill with id " + id + " no longer exists.", enfe);
}
List<String> illegalOrphanMessages = null;
Collection<EquippedSkill> equippedSkillCollectionOrphanCheck = skill.getEquippedSkillCollection();
for (EquippedSkill equippedSkillCollectionOrphanCheckEquippedSkill : equippedSkillCollectionOrphanCheck) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("This Skill (" + skill + ") cannot be destroyed since the EquippedSkill " + equippedSkillCollectionOrphanCheckEquippedSkill + " in its equippedSkillCollection field has a non-nullable skill field.");
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
Attribute attribute = skill.getAttribute();
if (attribute != null) {
attribute.getSkillCollection().remove(skill);
attribute = em.merge(attribute);
}
Collection<Character> characterCollection = skill.getCharacterCollection();
for (Character characterCollectionCharacter : characterCollection) {
characterCollectionCharacter.getSkillCollection().remove(skill);
characterCollectionCharacter = em.merge(characterCollectionCharacter);
}
em.remove(skill);
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public List<Skill> findSkillEntities() {
return findSkillEntities(true, -1, -1);
}
public List<Skill> findSkillEntities(int maxResults, int firstResult) {
return findSkillEntities(false, maxResults, firstResult);
}
private List<Skill> findSkillEntities(boolean all, int maxResults, int firstResult) {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
cq.select(cq.from(Skill.class));
Query q = em.createQuery(cq);
if (!all) {
q.setMaxResults(maxResults);
q.setFirstResult(firstResult);
}
return q.getResultList();
} finally {
em.close();
}
}
public Skill findSkill(Integer id) {
EntityManager em = getEntityManager();
try {
return em.find(Skill.class, id);
} finally {
em.close();
}
}
public int getSkillCount() {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
Root<Skill> rt = cq.from(Skill.class);
cq.select(em.getCriteriaBuilder().count(rt));
Query q = em.createQuery(cq);
return ((Long) q.getSingleResult()).intValue();
} finally {
em.close();
}
}
}