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/* Copyright (C) 2006-2010 Joan Queralt Molina
*
* 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; either version 2
* of the License, or (at your option) any later version.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
package biogenesis;
import java.util.MissingResourceException;
import java.util.Locale;
import java.util.ResourceBundle;
/**
* A class used to translate messages in the appropriate language.
*/
public class Messages {
/**
* The root name of files containing localized messages.
*/
private static final String BUNDLE_NAME = "biogenesis/messages/messages"; //$NON-NLS-1$
/**
* The selected locale to be used.
*/
private static Locale currentLocale = Locale.getDefault();
/**
* The ResourceBundle used to access localized messages
*/
private static ResourceBundle appResourceBundle =
ResourceBundle.getBundle(BUNDLE_NAME, currentLocale);
/**
* The names of all supported languages
*/
private static final String[] supportedLocalesNames = new String[4];
/**
* The standard codes of all supported languages
*/
private static final String[] supportedLocalesCodes = {"ca","en","es","de"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
/**
* The default locale index in supportedLocalesCodes when the system language is
* not supported by the program. The default language is English.
*/
private static final int DEFAULT_LOCALE_INDEX = 1;
/**
* Obtains mnemonic for key message in the current selected language.
* This mnemonic should appear in the message file as key_MNEMONIC.
*
* @param key The key string to find
* @return The mnemonic for this key or the first letter in the key if it is not found
*/
public static Integer getMnemonic(String key) {
try {
return Integer.valueOf(appResourceBundle.getString(key+"_MNEMONIC").codePointAt(0)); //$NON-NLS-1$
} catch (MissingResourceException e) {
return Integer.valueOf(key.codePointAt(0));
}
}
/**
* Translate key message into the current selected language.
* Key message is looked up the corresponding message file and
* the translation retreived.
*
* @param key The key string to find
* @return The translated String or the string !key! if it is not found
*/
public static String getString(String key) {
try {
return appResourceBundle.getString(key);
} catch (MissingResourceException e) {
return '!' + key + '!';
}
}
/**
* Translate key message into the current selected language.
* Key message is looked up the corresponding message file and
* the translation retreived. The $1 token is substitued by the
* string param1 in the translated string.
*
* @param key The key string to find
* @param param1 The string that $1 represents on the translated string
* @return The translated String or the string !key! if it is not found
*/
public static String getString(String key, String param1) {
return getString(key).replace("$1", param1); //$NON-NLS-1$
}
/**
* Translate key message into the current selected language.
* Key message is looked up the corresponding message file and
* the translation retreived. The $1 token is substitued by the
* string param1 in the translated string and $2 by param2.
*
* @param key The key string to find
* @param param1 The string that substitute $1 on the translated string
* @param param2 The string that substitute $2 on the translated string
* @return The translated String or the string !key! if it is not found
*/
public static String getString(String key, String param1, String param2) {
return getString(key, param1).replace("$2", param2); //$NON-NLS-1$
}
/**
* Translate key message into the current selected language.
* Key message is looked up the corresponding message file and
* the translation retreived. $i tokens, where i is an integer are
* substitued by string params[i-1] in the translated string.
*
* @param key The key string to find
* @param params The strings that substitue $i on the translated string
* @return The translated String or the string !key! if it is not found
*/
public static String getString(String key, String[] params) {
String string = getString(key);
String replacedString;
for (int i=1; i<=params.length; i++) {
replacedString = "$"+i; //$NON-NLS-1$
string = string.replace(replacedString, params[i-1]);
}
return string;
}
/**
* Getter for the list of supported locales
*
* @return An array of strings containing the names of all
* supported locales.
*/
public static String[] getSupportedLocalesNames() {
String[] names = new String[supportedLocalesNames.length];
for (int i=0; i<names.length; i++)
names[i] = supportedLocalesNames[i];
return names;
}
/**
* Set a new locale using its index in the list of supported locales
*
* @param index
*/
public static void setLocale(int index) {
currentLocale = new Locale(supportedLocalesCodes[index]);
appResourceBundle = ResourceBundle.getBundle(BUNDLE_NAME, currentLocale);
changeLocale();
}
/**
* Set a new locale from a language code
*
* @param language
*/
public static void setLocale(String language) {
currentLocale = new Locale(language);
appResourceBundle = ResourceBundle.getBundle(BUNDLE_NAME, currentLocale);
changeLocale();
}
/**
* Return the language code of the current locale
*
* @return The language code of the current locale
*/
public static String getLanguage() {
return currentLocale.getLanguage();
}
/**
* Return the current locale
*
* @return The current locale
*/
public static Locale getLocale() {
return currentLocale;
}
/**
* Return the current locale index in the supported language list
*
* @return The index of the current locale in the supported language list
*/
public static int getLocaleIndex() {
for (int i=0; i<supportedLocalesCodes.length; i++)
if (currentLocale.getLanguage().equals(supportedLocalesCodes[i]))
return i;
return DEFAULT_LOCALE_INDEX;
}
/**
* Called when the locale is changed to translate the names of the supported
* languages to the new locale
*/
protected static void changeLocale() {
supportedLocalesNames[0] = Messages.getString("T_CATALAN"); //$NON-NLS-1$
supportedLocalesNames[1] = Messages.getString("T_ENGLISH"); //$NON-NLS-1$
supportedLocalesNames[2] = Messages.getString("T_SPANISH"); //$NON-NLS-1$
supportedLocalesNames[3] = Messages.getString("T_GERMAN"); //$NON-NLS-1$
}
}
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