/**
* For copyright information see the LICENSE document.
*/
package gwlpr.database.jpa;
import gwlpr.database.EntityManagerFactoryProvider;
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.Spawnpoint;
import java.util.ArrayList;
import java.util.Collection;
import gwlpr.database.entities.Character;
import gwlpr.database.entities.Map;
import gwlpr.database.jpa.exceptions.IllegalOrphanException;
import gwlpr.database.jpa.exceptions.NonexistentEntityException;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.TypedQuery;
/**
*
* @author _rusty
*/
public class MapJpaController implements Serializable
{
private static final MapJpaController SINGLETON = new MapJpaController(EntityManagerFactoryProvider.get());
public static MapJpaController get() {
return SINGLETON;
}
public MapJpaController(EntityManagerFactory emf) {
this.emf = emf;
}
private EntityManagerFactory emf = null;
public EntityManager getEntityManager() {
return emf.createEntityManager();
}
public void create(Map map) {
if (map.getSpawnpointCollection() == null) {
map.setSpawnpointCollection(new ArrayList<Spawnpoint>());
}
if (map.getCharacterCollection() == null) {
map.setCharacterCollection(new ArrayList<Character>());
}
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Collection<Spawnpoint> attachedSpawnpointCollection = new ArrayList<Spawnpoint>();
for (Spawnpoint spawnpointCollectionSpawnpointToAttach : map.getSpawnpointCollection()) {
spawnpointCollectionSpawnpointToAttach = em.getReference(spawnpointCollectionSpawnpointToAttach.getClass(), spawnpointCollectionSpawnpointToAttach.getSpawnpointPK());
attachedSpawnpointCollection.add(spawnpointCollectionSpawnpointToAttach);
}
map.setSpawnpointCollection(attachedSpawnpointCollection);
Collection<Character> attachedCharacterCollection = new ArrayList<Character>();
for (Character characterCollectionCharacterToAttach : map.getCharacterCollection()) {
characterCollectionCharacterToAttach = em.getReference(characterCollectionCharacterToAttach.getClass(), characterCollectionCharacterToAttach.getId());
attachedCharacterCollection.add(characterCollectionCharacterToAttach);
}
map.setCharacterCollection(attachedCharacterCollection);
em.persist(map);
for (Spawnpoint spawnpointCollectionSpawnpoint : map.getSpawnpointCollection()) {
Map oldMapOfSpawnpointCollectionSpawnpoint = spawnpointCollectionSpawnpoint.getMap();
spawnpointCollectionSpawnpoint.setMap(map);
spawnpointCollectionSpawnpoint = em.merge(spawnpointCollectionSpawnpoint);
if (oldMapOfSpawnpointCollectionSpawnpoint != null) {
oldMapOfSpawnpointCollectionSpawnpoint.getSpawnpointCollection().remove(spawnpointCollectionSpawnpoint);
oldMapOfSpawnpointCollectionSpawnpoint = em.merge(oldMapOfSpawnpointCollectionSpawnpoint);
}
}
for (Character characterCollectionCharacter : map.getCharacterCollection()) {
Map oldLastOutpostOfCharacterCollectionCharacter = characterCollectionCharacter.getLastOutpost();
characterCollectionCharacter.setLastOutpost(map);
characterCollectionCharacter = em.merge(characterCollectionCharacter);
if (oldLastOutpostOfCharacterCollectionCharacter != null) {
oldLastOutpostOfCharacterCollectionCharacter.getCharacterCollection().remove(characterCollectionCharacter);
oldLastOutpostOfCharacterCollectionCharacter = em.merge(oldLastOutpostOfCharacterCollectionCharacter);
}
}
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public void edit(Map map) throws IllegalOrphanException, NonexistentEntityException, Exception {
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Map persistentMap = em.find(Map.class, map.getId());
Collection<Spawnpoint> spawnpointCollectionOld = persistentMap.getSpawnpointCollection();
Collection<Spawnpoint> spawnpointCollectionNew = map.getSpawnpointCollection();
Collection<Character> characterCollectionOld = persistentMap.getCharacterCollection();
Collection<Character> characterCollectionNew = map.getCharacterCollection();
List<String> illegalOrphanMessages = null;
for (Spawnpoint spawnpointCollectionOldSpawnpoint : spawnpointCollectionOld) {
if (!spawnpointCollectionNew.contains(spawnpointCollectionOldSpawnpoint)) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("You must retain Spawnpoint " + spawnpointCollectionOldSpawnpoint + " since its map field is not nullable.");
}
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
Collection<Spawnpoint> attachedSpawnpointCollectionNew = new ArrayList<Spawnpoint>();
for (Spawnpoint spawnpointCollectionNewSpawnpointToAttach : spawnpointCollectionNew) {
spawnpointCollectionNewSpawnpointToAttach = em.getReference(spawnpointCollectionNewSpawnpointToAttach.getClass(), spawnpointCollectionNewSpawnpointToAttach.getSpawnpointPK());
attachedSpawnpointCollectionNew.add(spawnpointCollectionNewSpawnpointToAttach);
}
spawnpointCollectionNew = attachedSpawnpointCollectionNew;
map.setSpawnpointCollection(spawnpointCollectionNew);
Collection<Character> attachedCharacterCollectionNew = new ArrayList<Character>();
for (Character characterCollectionNewCharacterToAttach : characterCollectionNew) {
characterCollectionNewCharacterToAttach = em.getReference(characterCollectionNewCharacterToAttach.getClass(), characterCollectionNewCharacterToAttach.getId());
attachedCharacterCollectionNew.add(characterCollectionNewCharacterToAttach);
}
characterCollectionNew = attachedCharacterCollectionNew;
map.setCharacterCollection(characterCollectionNew);
map = em.merge(map);
for (Spawnpoint spawnpointCollectionNewSpawnpoint : spawnpointCollectionNew) {
if (!spawnpointCollectionOld.contains(spawnpointCollectionNewSpawnpoint)) {
Map oldMapOfSpawnpointCollectionNewSpawnpoint = spawnpointCollectionNewSpawnpoint.getMap();
spawnpointCollectionNewSpawnpoint.setMap(map);
spawnpointCollectionNewSpawnpoint = em.merge(spawnpointCollectionNewSpawnpoint);
if (oldMapOfSpawnpointCollectionNewSpawnpoint != null && !oldMapOfSpawnpointCollectionNewSpawnpoint.equals(map)) {
oldMapOfSpawnpointCollectionNewSpawnpoint.getSpawnpointCollection().remove(spawnpointCollectionNewSpawnpoint);
oldMapOfSpawnpointCollectionNewSpawnpoint = em.merge(oldMapOfSpawnpointCollectionNewSpawnpoint);
}
}
}
for (Character characterCollectionOldCharacter : characterCollectionOld) {
if (!characterCollectionNew.contains(characterCollectionOldCharacter)) {
characterCollectionOldCharacter.setLastOutpost(null);
characterCollectionOldCharacter = em.merge(characterCollectionOldCharacter);
}
}
for (Character characterCollectionNewCharacter : characterCollectionNew) {
if (!characterCollectionOld.contains(characterCollectionNewCharacter)) {
Map oldLastOutpostOfCharacterCollectionNewCharacter = characterCollectionNewCharacter.getLastOutpost();
characterCollectionNewCharacter.setLastOutpost(map);
characterCollectionNewCharacter = em.merge(characterCollectionNewCharacter);
if (oldLastOutpostOfCharacterCollectionNewCharacter != null && !oldLastOutpostOfCharacterCollectionNewCharacter.equals(map)) {
oldLastOutpostOfCharacterCollectionNewCharacter.getCharacterCollection().remove(characterCollectionNewCharacter);
oldLastOutpostOfCharacterCollectionNewCharacter = em.merge(oldLastOutpostOfCharacterCollectionNewCharacter);
}
}
}
em.getTransaction().commit();
} catch (Exception ex) {
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
Integer id = map.getId();
if (findMap(id) == null) {
throw new NonexistentEntityException("The map 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();
Map map;
try {
map = em.getReference(Map.class, id);
map.getId();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The map with id " + id + " no longer exists.", enfe);
}
List<String> illegalOrphanMessages = null;
Collection<Spawnpoint> spawnpointCollectionOrphanCheck = map.getSpawnpointCollection();
for (Spawnpoint spawnpointCollectionOrphanCheckSpawnpoint : spawnpointCollectionOrphanCheck) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("This Map (" + map + ") cannot be destroyed since the Spawnpoint " + spawnpointCollectionOrphanCheckSpawnpoint + " in its spawnpointCollection field has a non-nullable map field.");
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
Collection<Character> characterCollection = map.getCharacterCollection();
for (Character characterCollectionCharacter : characterCollection) {
characterCollectionCharacter.setLastOutpost(null);
characterCollectionCharacter = em.merge(characterCollectionCharacter);
}
em.remove(map);
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public List<Map> findMapEntities() {
return findMapEntities(true, -1, -1);
}
public List<Map> findMapEntities(int maxResults, int firstResult) {
return findMapEntities(false, maxResults, firstResult);
}
private List<Map> findMapEntities(boolean all, int maxResults, int firstResult) {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
cq.select(cq.from(Map.class));
Query q = em.createQuery(cq);
if (!all) {
q.setMaxResults(maxResults);
q.setFirstResult(firstResult);
}
return q.getResultList();
} finally {
em.close();
}
}
public Map findMap(Integer id) {
EntityManager em = getEntityManager();
try {
return em.find(Map.class, id);
} finally {
em.close();
}
}
public Map findByGameId(int gameId) {
EntityManager em = getEntityManager();
try {
TypedQuery<Map> query = getEntityManager().createNamedQuery("Map.findByGameID", Map.class);
query.setParameter("gameID", gameId);
return query.getSingleResult();
} finally {
em.close();
}
}
public int getMapCount() {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
Root<Map> rt = cq.from(Map.class);
cq.select(em.getCriteriaBuilder().count(rt));
Query q = em.createQuery(cq);
return ((Long) q.getSingleResult()).intValue();
} finally {
em.close();
}
}
}