/*
* 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.processor;
import static org.jboss.as.jpa.messages.JpaLogger.JPA_LOGGER;
import java.util.Map;
import java.util.ServiceLoader;
import javax.persistence.spi.PersistenceProvider;
import org.jboss.as.jpa.messages.JpaLogger;
import org.jboss.as.jpa.transaction.JtaManagerImpl;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoadException;
import org.jboss.modules.ModuleLoader;
import org.jipijapa.plugin.spi.JtaManager;
import org.jipijapa.plugin.spi.ManagementAdaptor;
import org.jipijapa.plugin.spi.PersistenceProviderAdaptor;
import org.jipijapa.plugin.spi.PersistenceUnitMetadata;
import org.jipijapa.plugin.spi.Platform;
/**
* Loads persistence provider adaptors
*
* @author Scott Marlow
*/
public class PersistenceProviderAdaptorLoader {
private static final PersistenceProviderAdaptor noopAdaptor = new PersistenceProviderAdaptor() {
@Override
public void injectJtaManager(JtaManager jtaManager) {
}
@Override
public void injectPlatform(Platform platform) {
}
@Override
public void addProviderProperties(Map properties, PersistenceUnitMetadata pu) {
}
@Override
public void addProviderDependencies(PersistenceUnitMetadata pu) {
}
@Override
public void beforeCreateContainerEntityManagerFactory(PersistenceUnitMetadata pu) {
}
@Override
public void afterCreateContainerEntityManagerFactory(PersistenceUnitMetadata pu) {
}
@Override
public ManagementAdaptor getManagementAdaptor() {
return null;
}
@Override
public boolean doesScopedPersistenceUnitNameIdentifyCacheRegionName(PersistenceUnitMetadata pu) {
return true;
}
@Override
public void cleanup(PersistenceUnitMetadata pu) {
}
};
/**
* Loads the persistence provider adapter
*
* @param adapterModule may specify the adapter module name (can be null to use noop provider)
* @return the persistence provider adaptor for the provider class
* @throws ModuleLoadException
*/
public static PersistenceProviderAdaptor loadPersistenceAdapterModule(final String adapterModule, final Platform platform) throws
ModuleLoadException {
final ModuleLoader moduleLoader = Module.getBootModuleLoader();
if (adapterModule == null) {
return noopAdaptor;
}
PersistenceProviderAdaptor persistenceProviderAdaptor=null;
Module module = moduleLoader.loadModule(ModuleIdentifier.fromString(adapterModule));
final ServiceLoader<PersistenceProviderAdaptor> serviceLoader =
module.loadService(PersistenceProviderAdaptor.class);
if (serviceLoader != null) {
for (PersistenceProviderAdaptor adaptor : serviceLoader) {
if (persistenceProviderAdaptor != null) {
throw JpaLogger.ROOT_LOGGER.multipleAdapters(adapterModule);
}
persistenceProviderAdaptor = adaptor;
JPA_LOGGER.debugf("loaded persistence provider adapter %s", adapterModule);
}
if (persistenceProviderAdaptor != null) {
persistenceProviderAdaptor.injectJtaManager(JtaManagerImpl.getInstance());
persistenceProviderAdaptor.injectPlatform(platform);
}
}
return persistenceProviderAdaptor;
}
/**
* Loads the persistence provider adapter
*
* @param persistenceProvider classloader will be used to load the persistence provider adapter
* @return the persistence provider adaptor for the provider class
*/
public static PersistenceProviderAdaptor loadPersistenceAdapter(final PersistenceProvider persistenceProvider, final Platform platform)
{
PersistenceProviderAdaptor persistenceProviderAdaptor=null;
final ServiceLoader<PersistenceProviderAdaptor> serviceLoader =
ServiceLoader.load(PersistenceProviderAdaptor.class, persistenceProvider.getClass().getClassLoader());
if (serviceLoader != null) {
for (PersistenceProviderAdaptor adaptor : serviceLoader) {
if (persistenceProviderAdaptor != null) {
throw JpaLogger.ROOT_LOGGER.classloaderHasMultipleAdapters(persistenceProvider.getClass().getClassLoader().toString());
}
persistenceProviderAdaptor = adaptor;
JPA_LOGGER.debugf("loaded persistence provider adapter %s from classloader %s",
persistenceProviderAdaptor.getClass().getName(),
persistenceProvider.getClass().getClassLoader().toString());
}
if (persistenceProviderAdaptor != null) {
persistenceProviderAdaptor.injectJtaManager(JtaManagerImpl.getInstance());
persistenceProviderAdaptor.injectPlatform(platform);
}
}
return persistenceProviderAdaptor == null ?
noopAdaptor:
persistenceProviderAdaptor;
}
}