/*
* 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.persistenceprovider;
import java.util.ServiceLoader;
import javax.persistence.spi.PersistenceProvider;
import org.jboss.as.jpa.config.Configuration;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoadException;
import org.jboss.modules.ModuleLoader;
/**
* For loading persistence provider modules
*
* @author Scott Marlow
*/
public class PersistenceProviderLoader {
/**
* pre-loads the default persistence provider
*
* @throws ModuleLoadException
*/
public static void loadDefaultProvider() throws ModuleLoadException {
loadProviderModuleByName(Configuration.PROVIDER_MODULE_DEFAULT);
}
/**
* Loads the specified JPA persistence provider module name
*
* @param moduleName
* @throws ModuleLoadException
*/
public static void loadProviderModuleByName(String moduleName) throws ModuleLoadException {
final ModuleLoader moduleLoader = Module.getBootModuleLoader();
Module module = moduleLoader.loadModule(ModuleIdentifier.fromString(moduleName));
final ServiceLoader<PersistenceProvider> serviceLoader =
module.loadService(PersistenceProvider.class);
if (serviceLoader != null) {
for (PersistenceProvider provider1 : serviceLoader) {
// persistence provider jar may contain multiple provider service implementations
// save each provider
PersistenceProviderResolverImpl.getInstance().addPersistenceProvider(provider1);
}
}
}
}