podd.util.db.impl.HibernateSessionFactoryImpl.java Source code

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Here is the source code for podd.util.db.impl.HibernateSessionFactoryImpl.java

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/*
 * Copyright (c) 2009 - 2010. School of Information Technology and Electrical
 * Engineering, The University of Queensland.  This software is being developed
 * for the "Phenomics Ontoogy Driven Data Management Project (PODD)" project.
 * PODD is a National e-Research Architecture Taskforce (NeAT) project
 * co-funded by ANDS and ARCS.
 *
 * PODD is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PODD 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with PODD.  If not, see <http://www.gnu.org/licenses/>.
 */

package podd.util.db.impl;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.springframework.beans.factory.DisposableBean;
import podd.util.db.HibernateSessionFactory;

/**
 * @author Yuan-Fang Li
 * @version $Id$
 */

public class HibernateSessionFactoryImpl implements HibernateSessionFactory, DisposableBean {
    private static final Logger LOG = LoggerFactory.getLogger(HibernateSessionFactoryImpl.class);

    private SessionFactory factory;
    private ThreadLocal<Session> map;

    public HibernateSessionFactoryImpl(String configurationFileURL) {
        map = new ThreadLocal<Session>();
        LOG.debug("HibernateSessionFactoryUtil.static - loading config");
        final Configuration configuration = new Configuration().setProperties(Environment.getProperties());
        factory = configuration.configure(configurationFileURL).buildSessionFactory();
        LOG.debug("HibernateSessionFactoryUtil.static - end");
    }

    @Override
    public synchronized Session currentSession() {
        Session session = map.get();
        if (null == session) {
            session = factory.openSession();
            map.set(session);
        }
        return session;
    }

    @Override
    public synchronized void closeSession() {
        Session session = map.get();
        map.set(null);
        if (session != null) {

            //SessionFactoryUtils.releaseSession(session, factory);           

            session.close();
        }
    }

    @Override
    public void destroy() throws Exception {
        factory.close();
    }

    public SessionFactory getSessionFactory() {
        return factory;
    }
}