OsgiServiceFactorySessionFactory.java

package org.om.osgi.session.factory;

import org.om.core.api.mapping.registry.MappingRegistry;
import org.om.core.api.persistence.PersistenceAdapterFactory;
import org.om.core.api.persistence.proxy.ProxyFactory;
import org.om.core.api.session.factory.SessionFactory;
import org.om.core.impl.session.factory.ImmutableSessionFactory;
import org.osgi.framework.Bundle;
import org.osgi.framework.ServiceFactory;
import org.osgi.framework.ServiceRegistration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A {@link SessionFactory} that acts as a OSGI {@link ServiceFactory} to avoid
 * class loading issues in OSGI runtimes.
 * 
 * @author Jakob Külzer
 * 
 */
public class OsgiServiceFactorySessionFactory implements ServiceFactory {

	private static final Logger LOGGER = LoggerFactory.getLogger(OsgiServiceFactorySessionFactory.class);

	private final MappingRegistry mappingRegistry;
	private final PersistenceAdapterFactory persistenceDelegateFactory;
	private final ProxyFactory proxyFactory;

	public OsgiServiceFactorySessionFactory(PersistenceAdapterFactory persistenceDelegateFactory,
			MappingRegistry mappingRegistry, ProxyFactory proxyFactory) {
		this.persistenceDelegateFactory = persistenceDelegateFactory;
		this.mappingRegistry = mappingRegistry;
		this.proxyFactory = proxyFactory;
	}

	@Override
	public Object getService(Bundle bundle, ServiceRegistration registration) {
		LOGGER.info("Creating new SessionFactory for bundle {}", bundle.toString());

		return new ImmutableSessionFactory(persistenceDelegateFactory, mappingRegistry, proxyFactory);
	}

	@Override
	public void ungetService(Bundle bundle, ServiceRegistration registration, Object service) {
		LOGGER.info("Destroying SessionFactory for bundle {}", bundle.toString());
	}

}