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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package fr.ipst.vente.metier.daos;
import fr.ipst.vente.metier.daos.exceptions.NonexistentEntityException;
import fr.ipst.vente.metier.daos.exceptions.PreexistingEntityException;
import fr.ipst.vente.metier.daos.exceptions.RollbackFailureException;
import fr.ipst.vente.metier.entites.Article;
import java.io.Serializable;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Query;
import javax.persistence.EntityNotFoundException;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import fr.ipst.vente.metier.entites.Fournisseur;
import fr.ipst.vente.metier.entites.LigneFacture;
import java.util.ArrayList;
import java.util.Collection;
import javax.transaction.UserTransaction;
/**
*
* @author Denis
*/
public class ArticleJpaController implements Serializable {
public ArticleJpaController(UserTransaction utx, EntityManagerFactory emf) {
this.utx = utx;
this.emf = emf;
}
private UserTransaction utx = null;
private EntityManagerFactory emf = null;
public EntityManager getEntityManager() {
return emf.createEntityManager();
}
public void create(Article article) throws PreexistingEntityException, RollbackFailureException, Exception {
if (article.getLigneFactureCollection() == null) {
article.setLigneFactureCollection(new ArrayList<LigneFacture>());
}
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Fournisseur fournisseur = article.getFournisseur();
if (fournisseur != null) {
fournisseur = em.getReference(fournisseur.getClass(), fournisseur.getNum());
article.setFournisseur(fournisseur);
}
Collection<LigneFacture> attachedLigneFactureCollection = new ArrayList<LigneFacture>();
for (LigneFacture ligneFactureCollectionLigneFactureToAttach : article.getLigneFactureCollection()) {
ligneFactureCollectionLigneFactureToAttach = em.getReference(ligneFactureCollectionLigneFactureToAttach.getClass(), ligneFactureCollectionLigneFactureToAttach.getNumLigne());
attachedLigneFactureCollection.add(ligneFactureCollectionLigneFactureToAttach);
}
article.setLigneFactureCollection(attachedLigneFactureCollection);
em.persist(article);
if (fournisseur != null) {
fournisseur.getArticleCollection().add(article);
fournisseur = em.merge(fournisseur);
}
for (LigneFacture ligneFactureCollectionLigneFacture : article.getLigneFactureCollection()) {
Article oldRefArticleOfLigneFactureCollectionLigneFacture = ligneFactureCollectionLigneFacture.getRefArticle();
ligneFactureCollectionLigneFacture.setRefArticle(article);
ligneFactureCollectionLigneFacture = em.merge(ligneFactureCollectionLigneFacture);
if (oldRefArticleOfLigneFactureCollectionLigneFacture != null) {
oldRefArticleOfLigneFactureCollectionLigneFacture.getLigneFactureCollection().remove(ligneFactureCollectionLigneFacture);
oldRefArticleOfLigneFactureCollectionLigneFacture = em.merge(oldRefArticleOfLigneFactureCollectionLigneFacture);
}
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
if (findArticle(article.getReference()) != null) {
throw new PreexistingEntityException("Article " + article + " already exists.", ex);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public void edit(Article article) throws NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Article persistentArticle = em.find(Article.class, article.getReference());
Fournisseur fournisseurOld = persistentArticle.getFournisseur();
Fournisseur fournisseurNew = article.getFournisseur();
Collection<LigneFacture> ligneFactureCollectionOld = persistentArticle.getLigneFactureCollection();
Collection<LigneFacture> ligneFactureCollectionNew = article.getLigneFactureCollection();
if (fournisseurNew != null) {
fournisseurNew = em.getReference(fournisseurNew.getClass(), fournisseurNew.getNum());
article.setFournisseur(fournisseurNew);
}
Collection<LigneFacture> attachedLigneFactureCollectionNew = new ArrayList<LigneFacture>();
for (LigneFacture ligneFactureCollectionNewLigneFactureToAttach : ligneFactureCollectionNew) {
ligneFactureCollectionNewLigneFactureToAttach = em.getReference(ligneFactureCollectionNewLigneFactureToAttach.getClass(), ligneFactureCollectionNewLigneFactureToAttach.getNumLigne());
attachedLigneFactureCollectionNew.add(ligneFactureCollectionNewLigneFactureToAttach);
}
ligneFactureCollectionNew = attachedLigneFactureCollectionNew;
article.setLigneFactureCollection(ligneFactureCollectionNew);
article = em.merge(article);
if (fournisseurOld != null && !fournisseurOld.equals(fournisseurNew)) {
fournisseurOld.getArticleCollection().remove(article);
fournisseurOld = em.merge(fournisseurOld);
}
if (fournisseurNew != null && !fournisseurNew.equals(fournisseurOld)) {
fournisseurNew.getArticleCollection().add(article);
fournisseurNew = em.merge(fournisseurNew);
}
for (LigneFacture ligneFactureCollectionOldLigneFacture : ligneFactureCollectionOld) {
if (!ligneFactureCollectionNew.contains(ligneFactureCollectionOldLigneFacture)) {
ligneFactureCollectionOldLigneFacture.setRefArticle(null);
ligneFactureCollectionOldLigneFacture = em.merge(ligneFactureCollectionOldLigneFacture);
}
}
for (LigneFacture ligneFactureCollectionNewLigneFacture : ligneFactureCollectionNew) {
if (!ligneFactureCollectionOld.contains(ligneFactureCollectionNewLigneFacture)) {
Article oldRefArticleOfLigneFactureCollectionNewLigneFacture = ligneFactureCollectionNewLigneFacture.getRefArticle();
ligneFactureCollectionNewLigneFacture.setRefArticle(article);
ligneFactureCollectionNewLigneFacture = em.merge(ligneFactureCollectionNewLigneFacture);
if (oldRefArticleOfLigneFactureCollectionNewLigneFacture != null && !oldRefArticleOfLigneFactureCollectionNewLigneFacture.equals(article)) {
oldRefArticleOfLigneFactureCollectionNewLigneFacture.getLigneFactureCollection().remove(ligneFactureCollectionNewLigneFacture);
oldRefArticleOfLigneFactureCollectionNewLigneFacture = em.merge(oldRefArticleOfLigneFactureCollectionNewLigneFacture);
}
}
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
String id = article.getReference();
if (findArticle(id) == null) {
throw new NonexistentEntityException("The article with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public void destroy(String id) throws NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Article article;
try {
article = em.getReference(Article.class, id);
article.getReference();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The article with id " + id + " no longer exists.", enfe);
}
Fournisseur fournisseur = article.getFournisseur();
if (fournisseur != null) {
fournisseur.getArticleCollection().remove(article);
fournisseur = em.merge(fournisseur);
}
Collection<LigneFacture> ligneFactureCollection = article.getLigneFactureCollection();
for (LigneFacture ligneFactureCollectionLigneFacture : ligneFactureCollection) {
ligneFactureCollectionLigneFacture.setRefArticle(null);
ligneFactureCollectionLigneFacture = em.merge(ligneFactureCollectionLigneFacture);
}
em.remove(article);
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public List<Article> findArticleEntities() {
return findArticleEntities(true, -1, -1);
}
public List<Article> findArticleEntities(int maxResults, int firstResult) {
return findArticleEntities(false, maxResults, firstResult);
}
private List<Article> findArticleEntities(boolean all, int maxResults, int firstResult) {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
cq.select(cq.from(Article.class));
Query q = em.createQuery(cq);
if (!all) {
q.setMaxResults(maxResults);
q.setFirstResult(firstResult);
}
return q.getResultList();
} finally {
em.close();
}
}
public Article findArticle(String id) {
EntityManager em = getEntityManager();
try {
return em.find(Article.class, id);
} finally {
em.close();
}
}
public int getArticleCount() {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
Root<Article> rt = cq.from(Article.class);
cq.select(em.getCriteriaBuilder().count(rt));
Query q = em.createQuery(cq);
return ((Long) q.getSingleResult()).intValue();
} finally {
em.close();
}
}
} |
