ManagerBase.java :  » Portal » DLOG4J » dlog4j » Java Open Source

/*
 *  This program 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 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package dlog4j;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletContext;
import javax.sql.DataSource;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.SessionFactory;

/**
 * Manager,Hibernate
 * DlogActionServletinit
 * @author Liudong
 */
public class ManagerBase {
    
    private static ServletContext context;
    
    protected static void init(ServletContext servletContext) {
        if(servletContext!=null)
            context = servletContext;
    }
    /**
     * Hibernate
     * @return
     */
    public static Session getSession() throws SQLException{
        SessionFactory sessions = (SessionFactory)context.getAttribute(dlog4j.Globals.HIBERNATE_SESSIONS_KEY);
        return sessions.openSession(getConnection());
    }
  /**
   * 
   * @return
   * @throws SQLException
   */
  public static Connection getConnection() throws SQLException{
    DataSource dataSource = (DataSource)context.getAttribute(org.apache.struts.Globals.DATA_SOURCE_KEY);
    return dataSource.getConnection();    
  }
    /**
     * Hibernate
     * @param session
     * @throws SQLException
     * @throws HibernateException
     */
    public static void commitSession(Session session, boolean close) throws SQLException, HibernateException{
        session.flush();
        session.connection().commit();
        if(close){
          session.connection().close();
            session.close();
        }  
    }
    /**
     * session
     * @param session
     * @throws SQLException
     * @throws HibernateException
     */
    public static void closeSession(Session session) throws SQLException,HibernateException{
      session.connection().close();
      session.close();
    }
  public static void close(Object obj1,Object obj2,Object obj3){
    close(obj1);close(obj2);close(obj3);
  }
  /**
   * 
   * @param obj
   */
  public static void close(Object obj){
    if(obj==null)
      return;
    try{
      if(obj instanceof Connection)
        ((Connection)obj).close();
      if(obj instanceof Statement)
        ((Statement)obj).close();
      if(obj instanceof ResultSet)
        ((ResultSet)obj).close();
      if(obj instanceof Session)
          closeSession((Session)obj);
    }catch(Exception e){}
    obj = null;
  }

}