com.mysql.fabric.jdbc.FabricMySQLDataSource Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of mysql-connector-java
MySQL JDBC Type 4 driver
There is a newer version: 8.0.33
/*
  Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.

  The MySQL Connector/J is licensed under the terms of the GPLv2
  , like most MySQL Connectors.
  There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
  this software, see the FOSS License Exception
  .

  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; version 2
  of the License.

  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., 51 Franklin St, Fifth
  Floor, Boston, MA 02110-1301  USA

 */

package com.mysql.fabric.jdbc;

import java.sql.Driver;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.Properties;

import com.mysql.jdbc.NonRegisteringDriver;
import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;

/**
 * DataSource used to create connections to a MySQL fabric.
 */
public class FabricMySQLDataSource extends MysqlDataSource implements FabricMySQLConnectionProperties {

    private static final long serialVersionUID = 1L;

    /** Driver used to create connections. */
    private final static Driver driver;

    static {
        try {
            driver = new FabricMySQLDriver();
        } catch (Exception ex) {
            throw new RuntimeException("Can create driver", ex);
        }
    }

    /**
     * Creates a connection using the specified properties.
     * copied directly from MysqlDataSource.getConnection().
     * No easy way to override the static `mysqlDriver' without
     * globally affecting the driver.
     * 
     * @param props
     *            the properties to connect with
     * 
     * @return a connection to the database
     * 
     * @throws SQLException
     *             if an error occurs
     */
    @Override
    protected java.sql.Connection getConnection(Properties props) throws SQLException {
        String jdbcUrlToUse = null;

        if (!this.explicitUrl) {
            StringBuilder jdbcUrl = new StringBuilder("jdbc:mysql:fabric://");

            if (this.hostName != null) {
                jdbcUrl.append(this.hostName);
            }

            jdbcUrl.append(":");
            jdbcUrl.append(this.port);
            jdbcUrl.append("/");

            if (this.databaseName != null) {
                jdbcUrl.append(this.databaseName);
            }

            jdbcUrlToUse = jdbcUrl.toString();
        } else {
            jdbcUrlToUse = this.url;
        }

        //
        // URL should take precedence over properties
        //

        Properties urlProps = ((FabricMySQLDriver) driver).parseFabricURL(jdbcUrlToUse, null);
        urlProps.remove(NonRegisteringDriver.DBNAME_PROPERTY_KEY);
        urlProps.remove(NonRegisteringDriver.HOST_PROPERTY_KEY);
        urlProps.remove(NonRegisteringDriver.PORT_PROPERTY_KEY);

        Iterator