DBConnector.java

/*
 * Copyright 2014 by SCSK Corporation.
 * 
 * This file is part of PrimeCloud Controller(TM).
 * 
 * PrimeCloud Controller(TM) 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.
 * 
 * PrimeCloud Controller(TM) 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 PrimeCloud Controller(TM). If not, see <http://www.gnu.org/licenses/>.
 */
package jp.primecloud.auto.tool.management.db;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class DBConnector {

    private String url;

    private String userId;

    private String password;

    protected static Log log = LogFactory.getLog(DBConnector.class);

    public DBConnector(String url, String userId, String password) {
        this.url = url;
        this.userId = userId;
        this.password = password;
        try {
            //mysql
            String driver = "com.mysql.jdbc.Driver";
            Class.forName(driver);
        } catch (ClassNotFoundException e) {
            log.error(e.getMessage(), e);
        }
    }

    public Connection getConnection() {
        Connection con = null;
        try {
            DriverManager.registerDriver(new com.mysql.jdbc.Driver());
            con = DriverManager.getConnection(url, userId, password);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
        return con;
    }

    public void closeConnection(Connection con, Statement stmt, ResultSet rs) throws SQLException {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException e) {
                log.error(e.getMessage(), e);
            }
        }
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException e) {
                log.error(e.getMessage(), e);
            }
        }
        if (con != null) {
            try {
                con.close();
            } catch (SQLException e) {
                log.error(e.getMessage(), e);
            }
        }
    }
}