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/*
Copyright (c) 2002, 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.jdbc.util;
import java.sql.DriverManager;
import java.sql.ResultSet;
import com.mysql.jdbc.TimeUtil;
/**
* Dumps the timezone of the MySQL server represented by the JDBC url given on the commandline (or localhost/test if none provided).
*/
public class TimezoneDump {
private static final String DEFAULT_URL = "jdbc:mysql:///test";
/**
* Constructor for TimezoneDump.
*/
public TimezoneDump() {
super();
}
/**
* Entry point for program when called from the command line.
*
* @param args
* command-line args. Arg 1 is JDBC URL.
* @throws Exception
* if any errors occur
*/
public static void main(String[] args) throws Exception {
String jdbcUrl = DEFAULT_URL;
if ((args.length == 1) && (args[0] != null)) {
jdbcUrl = args[0];
}
Class.forName("com.mysql.jdbc.Driver").newInstance();
ResultSet rs = null;
try {
rs = DriverManager.getConnection(jdbcUrl).createStatement().executeQuery("SHOW VARIABLES LIKE 'timezone'");
while (rs.next()) {
String timezoneFromServer = rs.getString(2);
System.out.println("MySQL timezone name: " + timezoneFromServer);
String canonicalTimezone = TimeUtil.getCanonicalTimezone(timezoneFromServer, null);
System.out.println("Java timezone name: " + canonicalTimezone);
}
} finally {
if (rs != null) {
rs.close();
}
}
}
}