/jboss-as-7.1.1.Final/jpa/core/src/main/java/org/jboss/as/jpa/service/PersistenceUnitServiceImpl.java
Java | 173 lines | 102 code | 23 blank | 48 comment | 2 complexity | 2d33004732bcc07c8322c2ea4048f0e8 MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
- /*
- * JBoss, Home of Professional Open Source.
- * Copyright 2011, Red Hat, Inc., and individual contributors
- * as indicated by the @author tags. See the copyright.txt file in the
- * distribution for a full listing of individual contributors.
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this software; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
- */
- package org.jboss.as.jpa.service;
- import java.util.Map;
- import javax.persistence.EntityManagerFactory;
- import javax.persistence.spi.PersistenceProvider;
- import javax.sql.DataSource;
- import org.jboss.as.jpa.classloader.TempClassLoaderFactoryImpl;
- import org.jboss.as.jpa.spi.PersistenceProviderAdaptor;
- import org.jboss.as.jpa.spi.PersistenceUnitMetadata;
- import org.jboss.as.jpa.spi.PersistenceUnitService;
- import org.jboss.as.jpa.util.JPAServiceNames;
- import org.jboss.as.naming.WritableServiceBasedNamingStore;
- import org.jboss.msc.inject.Injector;
- import org.jboss.msc.service.Service;
- import org.jboss.msc.service.ServiceName;
- import org.jboss.msc.service.StartContext;
- import org.jboss.msc.service.StartException;
- import org.jboss.msc.service.StopContext;
- import org.jboss.msc.value.InjectedValue;
- import static org.jboss.as.jpa.JpaLogger.JPA_LOGGER;
- /**
- * Persistence Unit service that is created for each deployed persistence unit that will be referenced by the
- * persistence context/unit injector.
- * <p/>
- * The persistence unit scoped
- *
- * @author Scott Marlow
- */
- public class PersistenceUnitServiceImpl implements Service<PersistenceUnitServiceImpl>, PersistenceUnitService {
- private final InjectedValue<Map> properties = new InjectedValue<Map>();
- private final InjectedValue<DataSource> jtaDataSource = new InjectedValue<DataSource>();
- private final InjectedValue<DataSource> nonJtaDataSource = new InjectedValue<DataSource>();
- private final PersistenceProviderAdaptor persistenceProviderAdaptor;
- private final PersistenceProvider persistenceProvider;
- private final PersistenceUnitMetadata pu;
- private final ClassLoader classLoader;
- private volatile EntityManagerFactory entityManagerFactory;
- public PersistenceUnitServiceImpl(final ClassLoader classLoader, final PersistenceUnitMetadata pu, final PersistenceProviderAdaptor persistenceProviderAdaptor, final PersistenceProvider persistenceProvider) {
- this.pu = pu;
- this.persistenceProviderAdaptor = persistenceProviderAdaptor;
- this.persistenceProvider = persistenceProvider;
- this.classLoader = classLoader;
- }
- @Override
- public void start(StartContext context) throws StartException {
- try {
- JPA_LOGGER.startingService("Persistence Unit", pu.getScopedPersistenceUnitName());
- pu.setTempClassLoaderFactory(new TempClassLoaderFactoryImpl(classLoader));
- pu.setJtaDataSource(jtaDataSource.getOptionalValue());
- pu.setNonJtaDataSource(nonJtaDataSource.getOptionalValue());
- WritableServiceBasedNamingStore.pushOwner(context.getController().getServiceContainer().subTarget());
- this.entityManagerFactory = createContainerEntityManagerFactory();
- } finally {
- pu.setTempClassLoaderFactory(null); // release the temp classloader factory (only needed when creating the EMF)
- WritableServiceBasedNamingStore.popOwner();
- }
- }
- @Override
- public void stop(StopContext context) {
- JPA_LOGGER.stoppingService("Persistence Unit", pu.getScopedPersistenceUnitName());
- if (entityManagerFactory != null) {
- WritableServiceBasedNamingStore.pushOwner(context.getController().getServiceContainer().subTarget());
- try {
- entityManagerFactory.close();
- } finally {
- entityManagerFactory = null;
- pu.setTempClassLoaderFactory(null);
- WritableServiceBasedNamingStore.popOwner();
- }
- }
- }
- @Override
- public PersistenceUnitServiceImpl getValue() throws IllegalStateException, IllegalArgumentException {
- return this;
- }
- /**
- * Get the entity manager factory
- *
- * @return the entity manager factory
- */
- @Override
- public EntityManagerFactory getEntityManagerFactory() {
- return entityManagerFactory;
- }
- @Override
- public String getScopedPersistenceUnitName() {
- return pu.getScopedPersistenceUnitName();
- }
- public Injector<Map> getPropertiesInjector() {
- return properties;
- }
- public Injector<DataSource> getJtaDataSourceInjector() {
- return jtaDataSource;
- }
- public Injector<DataSource> getNonJtaDataSourceInjector() {
- return nonJtaDataSource;
- }
- /**
- * Returns the Persistence Unit service name used for creation or lookup.
- * The service name contains the unique fully scoped persistence unit name
- *
- * @param pu persistence unit definition
- * @return
- */
- public static ServiceName getPUServiceName(PersistenceUnitMetadata pu) {
- return JPAServiceNames.getPUServiceName(pu.getScopedPersistenceUnitName());
- }
- public static ServiceName getPUServiceName(String scopedPersistenceUnitName) {
- return JPAServiceNames.getPUServiceName(scopedPersistenceUnitName);
- }
- /**
- * Create EE container entity manager factory
- *
- * @return EntityManagerFactory
- */
- private EntityManagerFactory createContainerEntityManagerFactory() {
- persistenceProviderAdaptor.beforeCreateContainerEntityManagerFactory(pu);
- try {
- return persistenceProvider.createContainerEntityManagerFactory(pu, properties.getValue());
- } finally {
- try {
- persistenceProviderAdaptor.afterCreateContainerEntityManagerFactory(pu);
- } finally {
- pu.setAnnotationIndex(null); // close reference to Annotation Index (only needed during call to createContainerEntityManagerFactory)
- //This is needed if the datasource is restarted
- //pu.setTempClassLoaderFactory(null); // close reference to temp classloader factory (only needed during call to createEntityManagerFactory)
- }
- }
- }
- }