Manifest-Version: 1.0
Main-Class: toad.model.TopLevelDemo

        Session session_a = HibernateUtil.currentSession("toad");

package toad.persistence;

import org.hibernate.*;
import org.hibernate.cfg.*;
import org.apache.commons.logging.*;

import javax.naming.*;
import java.io.*;
import java.util.*;
import java.net.URL;

public class HibernateUtil
{
    private static final boolean usingAnnotations = true;
    private static Log log = LogFactory.getLog(HibernateUtil.class);
    private static HashMap<String, SessionFactory> sessionFactoryMap = new HashMap<String, SessionFactory>();
    public static final ThreadLocal sessionMapsThreadLocal = new ThreadLocal();

    static {
        try {
            String fileName;
            SessionFactory sf;
            // Create the SessionFactory objects from *.cfg.xml
            ArrayList<String> cfglist = getHibernateCfgFiles("/");
            for( String keyy : cfglist) {
                fileName = keyy + ".cfg.xml";
                if( usingAnnotations) {
                    sf = new AnnotationConfiguration().configure(fileName).buildSessionFactory();
                } else {
                    sf = new Configuration().configure(fileName).buildSessionFactory();                   
                }
                sessionFactoryMap.put(keyy, sf);
            }
        } catch (Exception ex) {
            ex.printStackTrace(System.out);
            log.error("Initial SessionFactory creation failed.", ex);
            System.out.println("Initial SessionFactories creation failed.");
            throw new ExceptionInInitializerError(ex);
   
        } // end of the try - catch block
    }
   
    public static Session currentSession() throws HibernateException
    {
        return currentSession("");
    }

    public static Session currentSession( String keyy) throws HibernateException
    {
        HashMap<String, Session> sessionMaps = (HashMap<String, Session>) sessionMapsThreadLocal.get();

        if( sessionMaps == null) {
            sessionMaps = new HashMap();
            sessionMapsThreadLocal.set( sessionMaps);
        }

        // Open a new Session, if this Thread has none yet
        Session s = (Session) sessionMaps.get(keyy);
        if( s == null) {
            s = ((SessionFactory) sessionFactoryMap.get(keyy)).openSession();
            sessionMaps.put(keyy, s);
        }

        return s;
    }

    public static ArrayList<String> getHibernateCfgFiles( String path)
    {
        ArrayList<String> ret_arry = new ArrayList<String>();
        String fileName, keyy;
        String[] str_arry;

        URL url = Configuration.class.getResource( path);  // returns C:/eclipse_workspace/sais_check_a/bin
        File file = new File( url.getFile());
        if( file.isDirectory()) {
            for( File f : file.listFiles()) {
                if( f.isFile()) {
                    fileName = f.getName();
                    if( fileName.endsWith(".cfg.xml")) {
                        str_arry = fileName.split("\\.");
                        keyy = str_arry[0];
                        ret_arry.add( keyy);
                    }
                }
            }
        }
     
        return ret_arry;
       
    }

    public static void closeSession()
    {
        log.debug("closing a single session");
        HashMap<String, Session> sessionMaps = (HashMap<String, Session>) sessionMapsThreadLocal.get();
        sessionMapsThreadLocal.set(null);
        if( sessionMaps != null) {
            Session session = sessionMaps.get("");
            if( session != null && session.isOpen())
                session.close();
        }
    }

    public static void closeSessions() throws HibernateException
    {
        log.debug("closing sessions");
        HashMap<String, Session> sessionMaps = (HashMap<String, Session>) sessionMapsThreadLocal.get();
        sessionMapsThreadLocal.set(null);
        if( sessionMaps != null) {
            for( Session session : sessionMaps.values()) {
                if( session.isOpen())
                    session.close();
            };
        }
    }
   
    /**
     * Closes the current SessionFactory and releases all resources.
     * <p>
     * The only other method that can be called on HibernateUtil
     * after this one is rebuildSessionFactory(Configuration).
     */
    public static void shutdown()
    {
        log.debug("Shutting down Hibernate");
        closeSessions();
        // Close caches and connection pools
        if( sessionFactoryMap != null) {
            for( SessionFactory sf : sessionFactoryMap.values()) {
                 sf.close();
            }
        }
        sessionFactoryMap = null;  // Clear static variables
    }

}

        URL url = Configuration.class.getResource( path);  // returns C:/eclipse_workspace/sais_check_a/bin