com.liferay.geoipusersmap.util.LPortalConnectionPool.java Source code

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Here is the source code for com.liferay.geoipusersmap.util.LPortalConnectionPool.java

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/**
 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.liferay.geoipusersmap.util;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import com.mchange.v2.c3p0.DataSources;

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

import java.util.Properties;

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

/**
 * <a href="LPortalConnectionPool.java.html"><b><i>View Source</i></b></a>
 *
 * @author Jose Miguel Trinchan
 *
 */

public class LPortalConnectionPool {

    public static void cleanUp(Connection con) {
        _instance._cleanUp(con);
    }

    public static void cleanUp(Connection con, Statement s) {
        _instance._cleanUp(con, s);
    }

    public static void cleanUp(Connection con, Statement s, ResultSet rs) {
        _instance._cleanUp(con, s, rs);
    }

    public static void destroy() throws SQLException {
        _instance._destroy();
    }

    public static Connection getConnection() throws SQLException {
        return _instance._getConnection();
    }

    public static Properties getProperties() {
        return _instance._props;
    }

    private LPortalConnectionPool() {
        try {

            // Properties

            ClassLoader classLoader = getClass().getClassLoader();

            _props = new Properties();

            _props.load(classLoader.getResourceAsStream("lportal-connection-pool.properties"));

            //_props.list(System.out);

            // Pooled data source

            String driverClass = _props.getProperty("driver.class");
            String jdbcUrl = _props.getProperty("jdbc.url");
            String user = _props.getProperty("user");
            String password = _props.getProperty("password");

            int minPoolSize = 5;

            try {
                minPoolSize = Integer.parseInt(_props.getProperty("min.pool.size"));
            } catch (Exception e) {
            }

            int maxPoolSize = 5;

            try {
                maxPoolSize = Integer.parseInt(_props.getProperty("max.pool.size"));
            } catch (Exception e) {
            }

            int acquireIncrement = 5;

            try {
                acquireIncrement = Integer.parseInt(_props.getProperty("acquire.increment"));
            } catch (Exception e) {
            }

            _cpds = new ComboPooledDataSource();

            _cpds.setDriverClass(driverClass);
            _cpds.setJdbcUrl(jdbcUrl);
            _cpds.setUser(user);
            _cpds.setPassword(password);

            _cpds.setMinPoolSize(minPoolSize);
            _cpds.setMaxPoolSize(maxPoolSize);
            _cpds.setAcquireIncrement(acquireIncrement);
        } catch (Exception e) {
            _log.error(e);
        }
    }

    private void _cleanUp(Connection con) {
        _cleanUp(con, null, null);
    }

    private void _cleanUp(Connection con, Statement s) {
        _cleanUp(con, s, null);
    }

    private void _cleanUp(Connection con, Statement s, ResultSet rs) {
        try {
            if (rs != null) {
                rs.close();
            }
        } catch (SQLException sqle) {
            _log.error(sqle);
        }

        try {
            if (s != null) {
                s.close();
            }
        } catch (SQLException sqle) {
            _log.error(sqle);
        }

        try {
            if (con != null) {
                con.close();
            }
        } catch (SQLException sqle) {
            _log.error(sqle);
        }
    }

    private void _destroy() throws SQLException {
        DataSources.destroy(_cpds);
    }

    private Connection _getConnection() throws SQLException {
        return _cpds.getConnection();
    }

    private static Log _log = LogFactory.getLog(LPortalConnectionPool.class);

    private static LPortalConnectionPool _instance = new LPortalConnectionPool();

    private Properties _props;
    private ComboPooledDataSource _cpds;

}