| 1 | /* |
| 2 | Copyright (C) 2002-2004 MySQL AB |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of version 2 of the GNU General Public License as |
| 6 | published by the Free Software Foundation. |
| 7 | |
| 8 | There are special exceptions to the terms and conditions of the GPL |
| 9 | as it is applied to this software. View the full text of the |
| 10 | exception in file EXCEPTIONS-CONNECTOR-J in the directory of this |
| 11 | software distribution. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | |
| 22 | |
| 23 | |
| 24 | */ |
| 25 | package com.mysql.jdbc.util; |
| 26 | |
| 27 | import com.mysql.jdbc.TimeUtil; |
| 28 | |
| 29 | import java.sql.DriverManager; |
| 30 | import java.sql.ResultSet; |
| 31 | |
| 32 | /** |
| 33 | * Dumps the timezone of the MySQL server represented by the JDBC url given on |
| 34 | * the commandline (or localhost/test if none provided). |
| 35 | * |
| 36 | * @author Mark Matthews |
| 37 | */ |
| 38 | public class TimezoneDump { |
| 39 | // ~ Static fields/initializers |
| 40 | // --------------------------------------------- |
| 41 | |
| 42 | private static final String DEFAULT_URL = "jdbc:mysql:///test"; |
| 43 | |
| 44 | // ~ Constructors |
| 45 | // ----------------------------------------------------------- |
| 46 | |
| 47 | /** |
| 48 | * Constructor for TimezoneDump. |
| 49 | */ |
| 50 | public TimezoneDump() { |
| 51 | super(); |
| 52 | } |
| 53 | |
| 54 | // ~ Methods |
| 55 | // ---------------------------------------------------------------- |
| 56 | |
| 57 | /** |
| 58 | * Entry point for program when called from the command line. |
| 59 | * |
| 60 | * @param args |
| 61 | * command-line args. Arg 1 is JDBC URL. |
| 62 | * @throws Exception |
| 63 | * if any errors occur |
| 64 | */ |
| 65 | public static void main(String[] args) throws Exception { |
| 66 | String jdbcUrl = DEFAULT_URL; |
| 67 | |
| 68 | if ((args.length == 1) && (args[0] != null)) { |
| 69 | jdbcUrl = args[0]; |
| 70 | } |
| 71 | |
| 72 | Class.forName("com.mysql.jdbc.Driver").newInstance(); |
| 73 | |
| 74 | ResultSet rs = DriverManager.getConnection(jdbcUrl).createStatement() |
| 75 | .executeQuery("SHOW VARIABLES LIKE 'timezone'"); |
| 76 | |
| 77 | while (rs.next()) { |
| 78 | String timezoneFromServer = rs.getString(2); |
| 79 | System.out.println("MySQL timezone name: " + timezoneFromServer); |
| 80 | |
| 81 | String canonicalTimezone = TimeUtil |
| 82 | .getCanoncialTimezone(timezoneFromServer); |
| 83 | System.out.println("Java timezone name: " + canonicalTimezone); |
| 84 | } |
| 85 | } |
| 86 | } |