com.liferay.portal.kernel.dao.jdbc.DataAccess.java Source code

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Here is the source code for com.liferay.portal.kernel.dao.jdbc.DataAccess.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.dao.jdbc;

import com.liferay.portal.kernel.jndi.JNDIUtil;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.InfrastructureUtil;
import com.liferay.portal.kernel.util.PropsKeys;
import com.liferay.portal.kernel.util.PropsUtil;

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

import java.util.Properties;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import javax.sql.DataSource;

/**
 * @author Brian Wing Shun Chan
 */
public class DataAccess {

    public static void cleanUp(Connection connection) {
        try {
            if (connection != null) {
                connection.close();
            }
        } catch (SQLException sqle) {
            if (_log.isWarnEnabled()) {
                _log.warn(sqle.getMessage());
            }
        }
    }

    public static void cleanUp(Connection connection, Statement statement) {
        cleanUp(statement);

        cleanUp(connection);
    }

    public static void cleanUp(Connection connection, Statement statement, ResultSet resultSet) {

        cleanUp(resultSet);

        cleanUp(statement);

        cleanUp(connection);
    }

    public static void cleanUp(ResultSet resultSet) {
        try {
            if (resultSet != null) {
                resultSet.close();
            }
        } catch (SQLException sqle) {
            if (_log.isWarnEnabled()) {
                _log.warn(sqle.getMessage());
            }
        }
    }

    public static void cleanUp(Statement statement) {
        try {
            if (statement != null) {
                statement.close();
            }
        } catch (SQLException sqle) {
            if (_log.isWarnEnabled()) {
                _log.warn(sqle.getMessage());
            }
        }
    }

    public static void cleanUp(Statement statement, ResultSet resultSet) {
        cleanUp(resultSet);

        cleanUp(statement);
    }

    public static void deepCleanUp(ResultSet resultSet) {
        try {
            if (resultSet != null) {
                Statement statement = resultSet.getStatement();

                cleanUp(statement.getConnection(), statement, resultSet);
            }
        } catch (SQLException sqle) {
            if (_log.isWarnEnabled()) {
                _log.warn(sqle.getMessage());
            }
        }
    }

    public static Connection getConnection() throws SQLException {
        DataSource dataSource = InfrastructureUtil.getDataSource();

        return dataSource.getConnection();
    }

    public static Connection getConnection(String location) throws NamingException, SQLException {

        Properties properties = PropsUtil.getProperties(PropsKeys.JNDI_ENVIRONMENT, true);

        Context context = new InitialContext(properties);

        DataSource dataSource = (DataSource) JNDIUtil.lookup(context, location);

        return dataSource.getConnection();
    }

    private static final Log _log = LogFactoryUtil.getLog(DataAccess.class);

}