/*                                                                 
 * NOTE: This copyright does *not* cover user programs that use HQ 
 * program services by normal system calls through the application 
 * program interfaces provided as part of the Hyperic Plug-in Development 
 * Kit or the Hyperic Client Development Kit - this is merely considered 
 * normal use of the program, and does *not* fall under the heading of 
 * "derived work". 
 *  
 * Copyright (C) [2004-2009], Hyperic, Inc. 
 * This file is part of HQ.         
 *  
 * HQ is free software; you can redistribute it and/or modify 
 * it under the terms version 2 of the GNU General Public License as 
 * published by the Free Software Foundation. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 
 * USA. 
 */

package org.hyperic.hibernate.dialect;

import java.sql.Connection;
import java.sql.SQLException;

import org.hibernate.dialect.Dialect;
import org.hyperic.util.jdbc.DBUtil;

public class HQDialectUtil {
    
    /**
     * Utility class should have a private constructor.
     */
    private HQDialectUtil() {
    }

    public static Dialect getDialect(Connection conn) throws SQLException {
        int t = DBUtil.getDBType(conn);
        
        if (DBUtil.isMySQL(t)) {
            return new MySQL5InnoDBDialect();
        } else if(DBUtil.isPostgreSQL(t)) {
            return new PostgreSQLDialect();
        } else if (DBUtil.isOracle(t)) {
            return new Oracle9Dialect();
        } else {
            throw new IllegalArgumentException("Unsupported DB");
        }
    }

    public static HQDialect getHQDialect(Connection conn) throws SQLException {
        return (HQDialect)HQDialectUtil.getDialect(conn);
    }
}