/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.service.jdbc.connections.internal;
import java.util.Map;
import org.jboss.logging.Logger;
import org.hibernate.MultiTenancyStrategy;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.service.classloading.spi.ClassLoaderService;
import org.hibernate.service.classloading.spi.ClassLoadingException;
import org.hibernate.service.jdbc.connections.spi.DataSourceBasedMultiTenantConnectionProviderImpl;
import org.hibernate.service.jdbc.connections.spi.MultiTenantConnectionProvider;
import org.hibernate.service.spi.BasicServiceInitiator;
import org.hibernate.service.spi.ServiceException;
import org.hibernate.service.spi.ServiceRegistryImplementor;
/**
* @author Steve Ebersole
*/
public class MultiTenantConnectionProviderInitiator implements BasicServiceInitiator<MultiTenantConnectionProvider> {
public static final MultiTenantConnectionProviderInitiator INSTANCE = new MultiTenantConnectionProviderInitiator();
private static final Logger log = Logger.getLogger( MultiTenantConnectionProviderInitiator.class );
@Override
public Class<MultiTenantConnectionProvider> getServiceInitiated() {
return MultiTenantConnectionProvider.class;
}
@Override
@SuppressWarnings( {"unchecked"})
public MultiTenantConnectionProvider initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
final MultiTenancyStrategy strategy = MultiTenancyStrategy.determineMultiTenancyStrategy( configurationValues );
if ( strategy == MultiTenancyStrategy.NONE || strategy == MultiTenancyStrategy.DISCRIMINATOR ) {
// nothing to do, but given the separate hierarchies have to handle this here.
}
final Object configValue = configurationValues.get( AvailableSettings.MULTI_TENANT_CONNECTION_PROVIDER );
if ( configValue == null ) {
// if they also specified the data source *name*, then lets assume they want
// org.hibernate.service.jdbc.connections.spi.DataSourceBasedMultiTenantConnectionProviderImpl
final Object dataSourceConfigValue = configurationValues.get( AvailableSettings.DATASOURCE );
if ( dataSourceConfigValue != null && String.class.isInstance( dataSourceConfigValue ) ) {
return new DataSourceBasedMultiTenantConnectionProviderImpl();
}
return null;
}
if ( MultiTenantConnectionProvider.class.isInstance( configValue ) ) {
return (MultiTenantConnectionProvider) configValue;
}
else {
final Class<MultiTenantConnectionProvider> implClass;
if ( Class.class.isInstance( configValue ) ) {
implClass = (Class) configValue;
}
else {
final String className = configValue.toString();
final ClassLoaderService classLoaderService = registry.getService( ClassLoaderService.class );
try {
implClass = classLoaderService.classForName( className );
}
catch (ClassLoadingException cle) {
log.warn( "Unable to locate specified class [" + className + "]", cle );
throw new ServiceException( "Unable to locate specified multi-tenant connection provider [" + className + "]" );
}
}
try {
return implClass.newInstance();
}
catch (Exception e) {
log.warn( "Unable to instantiate specified class [" + implClass.getName() + "]", e );
throw new ServiceException( "Unable to instantiate specified multi-tenant connection provider [" + implClass.getName() + "]" );
}
}
}
}