/*
* 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 org.jboss.as.jpa.config.PersistenceUnitMetadata;
import org.jboss.as.jpa.persistenceprovider.PersistenceProviderAdapterRegistry;
import org.jboss.as.jpa.spi.PersistenceProviderAdaptor;
import org.jboss.logging.Logger;
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 javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceException;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceProviderResolverHolder;
import javax.sql.DataSource;
import java.util.List;
import java.util.Map;
/**
* 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 PersistenceUnitService implements Service<PersistenceUnitService> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("persistenceunit");
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 static final Logger log = Logger.getLogger("org.jboss.jpa");
private EntityManagerFactory entityManagerFactory;
private PersistenceUnitMetadata pu;
public PersistenceUnitService(PersistenceUnitMetadata pu) {
this.pu = pu;
}
@Override
public void start(StartContext context) throws StartException {
try {
log.infof("starting Persistence Unit Service '%s' ", pu.getScopedPersistenceUnitName() );
PersistenceProvider provider = lookupProvider(pu.getPersistenceProviderClassName());
pu.setJtaDataSource(jtaDataSource.getOptionalValue());
pu.setNonJtaDataSource(nonJtaDataSource.getOptionalValue());
this.entityManagerFactory = createContainerEntityManagerFactory(provider);
} finally {
pu.setTempClassloader(null); // release the temp classloader (only needed when creating the EMF)
}
}
@Override
public void stop(StopContext context) {
log.infof("stopping Persistence Unit Service '%s' ", pu.getScopedPersistenceUnitName() );
if (entityManagerFactory != null) {
entityManagerFactory.close();
entityManagerFactory = null;
}
}
@Override
public PersistenceUnitService getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
/**
* Get the entity manager factory
*
* @return the entity manager factory
*/
public EntityManagerFactory getEntityManagerFactory() {
return entityManagerFactory;
}
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 PersistenceUnitService.SERVICE_NAME.append(pu.getScopedPersistenceUnitName());
}
public static ServiceName getPUServiceName(String scopedPersistenceUnitName) {
return PersistenceUnitService.SERVICE_NAME.append(scopedPersistenceUnitName);
}
/**
* Look up the persistence provider
*
* @param providerName
* @return
*/
private PersistenceProvider lookupProvider(String providerName) {
List<PersistenceProvider> providers =
PersistenceProviderResolverHolder.getPersistenceProviderResolver().getPersistenceProviders();
for (PersistenceProvider provider : providers) {
if (provider.getClass().getName().equals(providerName)) {
return provider;
}
}
StringBuilder sb = new StringBuilder();
for (PersistenceProvider provider : providers) {
sb.append(provider.getClass().getName()).append(", ");
}
throw new PersistenceException("PersistenceProvider '" + providerName + "' not found in {" + sb.toString() + "}");
}
/**
* Create EE container entity manager factory
*
* @param provider
* @return EntityManagerFactory
*/
private EntityManagerFactory createContainerEntityManagerFactory(PersistenceProvider provider) {
PersistenceProviderAdaptor adaptor = PersistenceProviderAdapterRegistry.getPersistenceProviderAdaptor(pu.getPersistenceProviderClassName());
adaptor.beforeCreateContainerEntityManagerFactory(pu);
try {
return provider.createContainerEntityManagerFactory(pu, properties.getValue());
} finally {
try {
adaptor.afterCreateContainerEntityManagerFactory(pu);
} finally {
pu.setAnnotationIndex(null); // close reference to Annotation Index (only needed during call to createContainerEntityManagerFactory)
pu.setTempClassloader(null); // close reference to temp classloader (only needed during call to createEntityManagerFactory)
}
}
}
}