com.adsapient.shared.service.AdSapientHibernateService.java Source code

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Here is the source code for com.adsapient.shared.service.AdSapientHibernateService.java

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/*
 * AdSapient - Open Source Ad Server
 * http://www.sourceforge.net/projects/adsapient
 * http://www.adsapient.com
 *
 * Copyright (C) 2001-06 Vitaly Sazanovich
 * Vitaly.Sazanovich@gmail.com
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Library General Public License  as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * 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 General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
package com.adsapient.shared.service;

import org.apache.log4j.Logger;

import org.hibernate.FlushMode;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

import org.hibernate.cfg.Configuration;

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class AdSapientHibernateService implements ApplicationContextAware {
    static Logger logger = Logger.getLogger(AdSapientHibernateService.class);

    public static ApplicationContext ctx;

    public static String application = null;

    public static SessionFactory sessionFactory;

    private static Session testSession;

    private static String pathToHibernateConfigFile = "/hibernate.cfg.xml";

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        ctx = applicationContext;
        sessionFactory = (SessionFactory) ctx.getBean("sessionFactory");
    }

    public static void setTestSession(Session testSession) {
        AdSapientHibernateService.testSession = testSession;
    }

    public static void rebuildSessionFactory() {
        try {
        } catch (Exception ex) {
            logger.fatal(ex.getMessage(), ex);
        }
    }

    public static synchronized void rebuildSessionFactory(Configuration configuration) {
        try {
            rebuildSessionFactory();
        } catch (Exception ex) {
            throw new RuntimeException("problem with rebuild  session", ex);
        }
    }

    public static synchronized void closeSession(Session session, Transaction transaction) {
        if ((session != null) && session.equals(testSession)) {
            return;
        }

        try {
            if ((transaction != null) && !transaction.wasCommitted()) {
                try {
                    transaction.rollback();
                } catch (HibernateException e) {
                    logger.error("error while trying to rollback wrong transaction", e);
                }
            }
        } catch (HibernateException e) {
            logger.error("error while trying to find out transaktion state", e);
        }

        if (session != null) {
            try {
                session.close();
            } catch (HibernateException eh) {
                logger.error("Exeption in close sesion:" + eh.getMessage());
            }
        }
    }

    public static synchronized Session openSession() throws HibernateException {
        if (sessionFactory == null) {
            return null;
        }

        if (testSession != null) {
            return testSession;
        }

        Session session = sessionFactory.openSession();
        session.setFlushMode(FlushMode.COMMIT);

        return session;
    }
}