| 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; |
| 26 | |
| 27 | import java.text.MessageFormat; |
| 28 | import java.util.Locale; |
| 29 | import java.util.MissingResourceException; |
| 30 | import java.util.ResourceBundle; |
| 31 | |
| 32 | /** |
| 33 | * Support for localized messages. |
| 34 | * |
| 35 | * @author Mark Matthews |
| 36 | * @version $Id: Messages.java 3726 2005-05-19 15:52:24Z mmatthews $ |
| 37 | */ |
| 38 | public class Messages { |
| 39 | |
| 40 | private static final String BUNDLE_NAME = "com.mysql.jdbc.LocalizedErrorMessages"; //$NON-NLS-1$ |
| 41 | |
| 42 | private static final ResourceBundle RESOURCE_BUNDLE; |
| 43 | |
| 44 | static { |
| 45 | ResourceBundle temp = null; |
| 46 | |
| 47 | // |
| 48 | // Overly-pedantic here, some appserver and JVM combos don't deal |
| 49 | // well with the no-args version, others don't deal well with |
| 50 | // the three-arg version, so we need to try both :( |
| 51 | // |
| 52 | |
| 53 | try { |
| 54 | temp = ResourceBundle.getBundle(BUNDLE_NAME, Locale.getDefault(), |
| 55 | Messages.class.getClassLoader()); |
| 56 | } catch (Throwable t) { |
| 57 | try { |
| 58 | temp = ResourceBundle.getBundle(BUNDLE_NAME); |
| 59 | } catch (Throwable t2) { |
| 60 | throw new RuntimeException( |
| 61 | "Can't load resource bundle due to underlying exception " |
| 62 | + t.toString()); |
| 63 | } |
| 64 | } finally { |
| 65 | RESOURCE_BUNDLE = temp; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Returns the localized message for the given message key |
| 71 | * |
| 72 | * @param key |
| 73 | * the message key |
| 74 | * @return The localized message for the key |
| 75 | */ |
| 76 | public static String getString(String key) { |
| 77 | if (RESOURCE_BUNDLE == null) { |
| 78 | throw new RuntimeException( |
| 79 | "Localized messages from resource bundle '" + BUNDLE_NAME |
| 80 | + "' not loaded during initialization of driver."); |
| 81 | } |
| 82 | |
| 83 | try { |
| 84 | if (key == null) { |
| 85 | throw new IllegalArgumentException( |
| 86 | "Message key can not be null"); |
| 87 | } |
| 88 | |
| 89 | String message = RESOURCE_BUNDLE.getString(key); |
| 90 | |
| 91 | if (message == null) { |
| 92 | message = "Missing error message for key '" + key + "'"; |
| 93 | } |
| 94 | |
| 95 | return message; |
| 96 | } catch (MissingResourceException e) { |
| 97 | return '!' + key + '!'; |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | public static String getString(String key, Object[] args) { |
| 102 | return MessageFormat.format(getString(key), args); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Dis-allow construction ... |
| 107 | */ |
| 108 | private Messages() { |
| 109 | |
| 110 | // XXX Auto-generated constructor stub |
| 111 | } |
| 112 | } |