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/*
Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, 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
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
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.lang.reflect.Constructor;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
import java.util.logging.Logger;
import com.mysql.jdbc.NonRegisteringDriver;
/**
* JDBC driver for Fabric MySQL connections. This driver will create connections for URLs of the form:
* <i>jdbc:mysql:fabric://host:port/?fabricShardTable=employees.employees&fabricShardKey=4621</i>.
*/
public class FabricMySQLDriver extends NonRegisteringDriver implements Driver {
// may be extended to support other protocols in the future
public static final String FABRIC_URL_PREFIX = "jdbc:mysql:fabric://";
// connection property keys
public static final String FABRIC_SHARD_KEY_PROPERTY_KEY = "fabricShardKey";
public static final String FABRIC_SHARD_TABLE_PROPERTY_KEY = "fabricShardTable";
public static final String FABRIC_SERVER_GROUP_PROPERTY_KEY = "fabricServerGroup";
public static final String FABRIC_PROTOCOL_PROPERTY_KEY = "fabricProtocol";
public static final String FABRIC_USERNAME_PROPERTY_KEY = "fabricUsername";
public static final String FABRIC_PASSWORD_PROPERTY_KEY = "fabricPassword";
public static final String FABRIC_REPORT_ERRORS_PROPERTY_KEY = "fabricReportErrors";
// Register ourselves with the DriverManager
static {
try {
DriverManager.registerDriver(new FabricMySQLDriver());
} catch (SQLException ex) {
throw new RuntimeException("Can't register driver", ex);
}
}
public FabricMySQLDriver() throws SQLException {
}
@Override
public Connection connect(String url, Properties info) throws SQLException {
Properties parsedProps = parseFabricURL(url, info);
if (parsedProps == null) {
return null;
}
parsedProps.setProperty(FABRIC_PROTOCOL_PROPERTY_KEY, "http");
if (com.mysql.jdbc.Util.isJdbc4()) {
try {
Constructor<?> jdbc4proxy = Class.forName("com.mysql.fabric.jdbc.JDBC4FabricMySQLConnectionProxy").getConstructor(
new Class[] { Properties.class });
return (Connection) com.mysql.jdbc.Util.handleNewInstance(jdbc4proxy, new Object[] { parsedProps }, null);
} catch (Exception e) {
throw (SQLException) new SQLException(e.getMessage()).initCause(e);
}
}
return new FabricMySQLConnectionProxy(parsedProps);
}
/**
* Determine whether this is a valid Fabric MySQL URL. It should be of the form:
* <i>jdbc:mysql:fabric://host:port/?options</i>.
*/
@Override
public boolean acceptsURL(String url) throws SQLException {
return parseFabricURL(url, null) != null;
}
/* static */Properties parseFabricURL(String url, Properties defaults) throws SQLException {
if (!url.startsWith("jdbc:mysql:fabric://")) {
return null;
}
// We have to fudge the URL here to get NonRegisteringDriver.parseURL() to parse it for us.
// It actually checks the prefix and bails if it's not recognized.
// jdbc:mysql:fabric:// => jdbc:mysql://
return super.parseURL(url.replaceAll("fabric:", ""), defaults);
}
public Logger getParentLogger() throws SQLException {
throw new SQLException("no logging");
}
}