org.squale.welcom.outils.jdbc.WSessionHibernatePersitance.java Source code

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Here is the source code for org.squale.welcom.outils.jdbc.WSessionHibernatePersitance.java

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/**
 * Copyright (C) 2008-2010, Squale Project - http://www.squale.org
 *
 * This file is part of Squale.
 *
 * Squale 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 3 of the
 * License, or any later version.
 *
 * Squale 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 Lesser General Public License
 * along with Squale.  If not, see <http://www.gnu.org/licenses/>.
 */
/*
 * Cr le 25 juil. 05
 *
 * Pour changer le modle de ce fichier gnr, allez  :
 * Fentre&gt;Prfrences&gt;Java&gt;Gnration de code&gt;Code et commentaires
 */
package org.squale.welcom.outils.jdbc;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.validator.GenericValidator;
import org.squale.welcom.outils.WelcomConfigurator;

import org.squale.jraf.bootstrap.locator.ProviderLocator;
import org.squale.jraf.commons.exception.JrafPersistenceException;
import org.squale.jraf.helper.PersistenceHelper;
import org.squale.jraf.provider.persistence.hibernate.SessionImpl;
import org.squale.jraf.spi.persistence.IPersistenceProvider;
import org.squale.jraf.spi.persistence.ISession;
import org.squale.jraf.spi.provider.IProvider;

/**
 * @author M327837 Pour changer le modle de ce commentaire de type gnr, allez  :
 *         Fentre&gt;Prfrences&gt;Java&gt;Gnration de code&gt;Code et commentaires
 */
public class WSessionHibernatePersitance {
    /** logger */
    private static Log log = LogFactory.getLog(WSessionHibernatePersitance.class);

    /** La connection */
    private static Map hmConn = new HashMap();

    /**
     * Recupere la connection jdbc
     * 
     * @throws SQLException : Erreur SQL
     * @return connection
     */
    public static Connection getHibernateConnection() throws SQLException {
        // Recherche le jdbc dans le pacekge
        ISession session;
        Connection conn = null;
        try {
            session = getPersistenceProvider().getSession();
            final SessionImpl sessionImpl = (SessionImpl) session;
            final Object sessionHibernate = sessionImpl.getClass().getMethod("getSession", (Class[]) null)
                    .invoke(sessionImpl, (Object[]) null);
            conn = (Connection) sessionHibernate.getClass().getMethod("connection", (Class[]) null)
                    .invoke(sessionHibernate, (Object[]) null);

            hmConn.put(sessionHibernate, conn);

        } catch (final Exception e1) {
            log.error(e1, e1);
            throw new SQLException(e1.getMessage());
        }
        return conn;
    }

    /**
     * Recupere le provider
     * 
     * @return Le persisance provider
     * @throws JrafPersistenceException Probleme pour trouver le provider
     */
    private static IPersistenceProvider getPersistenceProvider() throws JrafPersistenceException {
        final String providerName = WelcomConfigurator
                .getMessage(WelcomConfigurator.ADDONS_CONFIG_HIBERNATE_PROVIDERPERSISTENCE);
        if (GenericValidator.isBlankOrNull(providerName)) {
            return PersistenceHelper.getPersistenceProvider();
        } else {

            final IProvider provider = ProviderLocator.getProvider(providerName);
            if (provider instanceof IPersistenceProvider) {
                return (IPersistenceProvider) provider;
            } else {
                throw new JrafPersistenceException("Le provider '" + providerName
                        + "' declar sous 'addons.config.hibernate.providerpersistence' introuvable dans le dictionnaire JNDI");
            }

        }
    }

    /**
     * Ferme la session Hybernate
     * 
     * @param conn : Connection jdbc
     */
    public static void close(final Connection conn) {

        Object hybernateSession = null;// hmConn.get(conn);
        for (Iterator iter = hmConn.entrySet().iterator(); iter.hasNext();) {
            Entry element = (Entry) iter.next();
            if (element.getValue() == conn) {
                hybernateSession = element.getKey();
                hmConn.remove(hybernateSession);
            }

        }
        // hmConn.remove(conn);

        try {
            if (hybernateSession != null) {
                final Boolean isOpen = (Boolean) hybernateSession.getClass().getMethod("isOpen", (Class[]) null)
                        .invoke(hybernateSession, (Object[]) null);
                if (isOpen.booleanValue()) {
                    hybernateSession.getClass().getMethod("flush", (Class[]) null).invoke(hybernateSession,
                            (Object[]) null);
                    hybernateSession.getClass().getMethod("close", (Class[]) null).invoke(hybernateSession,
                            (Object[]) null);
                }
                // hybernateSession.getClass().getMethod("disconnect", (Class[]) null).invoke(hybernateSession,
                // (Object[]) null);
            }
        } catch (final Exception e) {
            log.error(e, e);
        }
    }

}