org.jivesoftware.util.LocaleUtils Maven / Gradle / Ivy
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/*
* Copyright (C) 2004-2008 Jive Software. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.util;
import java.text.DateFormat;
import java.text.Format;
import java.text.MessageFormat;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.StringTokenizer;
import java.util.TimeZone;
import java.util.concurrent.ConcurrentHashMap;
import org.jivesoftware.openfire.XMPPServer;
import org.jivesoftware.openfire.container.Plugin;
import org.jivesoftware.openfire.container.PluginManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A set of methods for retrieving and converting locale specific strings and numbers.
*
* @author Jive Software
*/
public class LocaleUtils {
private static final Logger Log = LoggerFactory.getLogger(LocaleUtils.class);
private static final Map timeZoneLists =
new ConcurrentHashMap<>();
// The basename to use for looking up the appropriate resource bundles
// TODO - extract this out into a test that grabs the resource name from JiveGlobals
// TODO and defaults to openfire_i18n if nothing set.
private static final String resourceBaseName = "openfire_i18n";
private LocaleUtils() {
}
/**
* Converts a locale string like "en", "en_US" or "en_US_win" to a Java
* locale object. If the conversion fails, null is returned.
*
* @param localeCode the locale code for a Java locale. See the {@link java.util.Locale}
* class for more details.
* @return The Java Locale that matches the locale code, or null.
*/
public static Locale localeCodeToLocale(String localeCode) {
Locale locale = null;
if (localeCode != null) {
String language = null;
String country = null;
String variant = null;
StringTokenizer tokenizer = new StringTokenizer(localeCode, "_");
if (tokenizer.hasMoreTokens()) {
language = tokenizer.nextToken();
if (tokenizer.hasMoreTokens()) {
country = tokenizer.nextToken();
if (tokenizer.hasMoreTokens()) {
variant = tokenizer.nextToken();
}
}
}
locale = new Locale(language,
((country != null) ? country : ""),
((variant != null) ? variant : ""));
}
return locale;
}
// The list of supported timezone ids. The list tries to include all of the relevant
// time zones for the world without any extraneous zones.
private static String[] timeZoneIds = new String[]{"GMT",
"Pacific/Apia",
"HST",
"AST",
"America/Los_Angeles",
"America/Phoenix",
"America/Mazatlan",
"America/Denver",
"America/Belize",
"America/Chicago",
"America/Mexico_City",
"America/Regina",
"America/Bogota",
"America/New_York",
"America/Indianapolis",
"America/Halifax",
"America/Caracas",
"America/Santiago",
"America/St_Johns",
"America/Sao_Paulo",
"America/Buenos_Aires",
"America/Godthab",
"Atlantic/South_Georgia",
"Atlantic/Azores",
"Atlantic/Cape_Verde",
"Africa/Casablanca",
"Europe/Dublin",
"Europe/Berlin",
"Europe/Belgrade",
"Europe/Paris",
"Europe/Warsaw",
"ECT",
"Europe/Athens",
"Europe/Bucharest",
"Africa/Cairo",
"Africa/Harare",
"Europe/Helsinki",
"Asia/Jerusalem",
"Asia/Baghdad",
"Asia/Kuwait",
"Europe/Moscow",
"Africa/Nairobi",
"Asia/Tehran",
"Asia/Muscat",
"Asia/Baku",
"Asia/Kabul",
"Asia/Yekaterinburg",
"Asia/Karachi",
"Asia/Calcutta",
"Asia/Katmandu",
"Asia/Almaty",
"Asia/Dhaka",
"Asia/Colombo",
"Asia/Rangoon",
"Asia/Bangkok",
"Asia/Krasnoyarsk",
"Asia/Hong_Kong",
"Asia/Irkutsk",
"Asia/Kuala_Lumpur",
"Australia/Perth",
"Asia/Taipei",
"Asia/Tokyo",
"Asia/Seoul",
"Asia/Yakutsk",
"Australia/Adelaide",
"Australia/Darwin",
"Australia/Brisbane",
"Australia/Sydney",
"Pacific/Guam",
"Australia/Hobart",
"Asia/Vladivostok",
"Pacific/Noumea",
"Pacific/Auckland",
"Pacific/Fiji",
"Pacific/Tongatapu"
};
// A mapping from the supported timezone ids to friendly english names.
private static final Map nameMap = new HashMap<>();
static {
nameMap.put(timeZoneIds[0], "International Date Line West");
nameMap.put(timeZoneIds[1], "Midway Island, Samoa");
nameMap.put(timeZoneIds[2], "Hawaii");
nameMap.put(timeZoneIds[3], "Alaska");
nameMap.put(timeZoneIds[4], "Pacific Time (US & Canada); Tijuana");
nameMap.put(timeZoneIds[5], "Arizona");
nameMap.put(timeZoneIds[6], "Chihuahua, La Pax, Mazatlan");
nameMap.put(timeZoneIds[7], "Mountain Time (US & Canada)");
nameMap.put(timeZoneIds[8], "Central America");
nameMap.put(timeZoneIds[9], "Central Time (US & Canada)");
nameMap.put(timeZoneIds[10], "Guadalajara, Mexico City, Monterrey");
nameMap.put(timeZoneIds[11], "Saskatchewan");
nameMap.put(timeZoneIds[12], "Bogota, Lima, Quito");
nameMap.put(timeZoneIds[13], "Eastern Time (US & Canada)");
nameMap.put(timeZoneIds[14], "Indiana (East)");
nameMap.put(timeZoneIds[15], "Atlantic Time (Canada)");
nameMap.put(timeZoneIds[16], "Caracas, La Paz");
nameMap.put(timeZoneIds[17], "Santiago");
nameMap.put(timeZoneIds[18], "Newfoundland");
nameMap.put(timeZoneIds[19], "Brasilia");
nameMap.put(timeZoneIds[20], "Buenos Aires, Georgetown");
nameMap.put(timeZoneIds[21], "Greenland");
nameMap.put(timeZoneIds[22], "Mid-Atlantic");
nameMap.put(timeZoneIds[23], "Azores");
nameMap.put(timeZoneIds[24], "Cape Verde Is.");
nameMap.put(timeZoneIds[25], "Casablanca, Monrovia");
nameMap.put(timeZoneIds[26], "Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London");
nameMap.put(timeZoneIds[27], "Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna");
nameMap.put(timeZoneIds[28], "Belgrade, Bratislava, Budapest, Ljubljana, Prague");
nameMap.put(timeZoneIds[29], "Brussels, Copenhagen, Madrid, Paris");
nameMap.put(timeZoneIds[30], "Sarajevo, Skopje, Warsaw, Zagreb");
nameMap.put(timeZoneIds[31], "West Central Africa");
nameMap.put(timeZoneIds[32], "Athens, Istanbul, Minsk");
nameMap.put(timeZoneIds[33], "Bucharest");
nameMap.put(timeZoneIds[34], "Cairo");
nameMap.put(timeZoneIds[35], "Harare, Pretoria");
nameMap.put(timeZoneIds[36], "Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius");
nameMap.put(timeZoneIds[37], "Jerusalem");
nameMap.put(timeZoneIds[38], "Baghdad");
nameMap.put(timeZoneIds[39], "Kuwait, Riyadh");
nameMap.put(timeZoneIds[40], "Moscow, St. Petersburg, Volgograd");
nameMap.put(timeZoneIds[41], "Nairobi");
nameMap.put(timeZoneIds[42], "Tehran");
nameMap.put(timeZoneIds[43], "Abu Dhabi, Muscat");
nameMap.put(timeZoneIds[44], "Baku, Tbilisi, Muscat");
nameMap.put(timeZoneIds[45], "Kabul");
nameMap.put(timeZoneIds[46], "Ekaterinburg");
nameMap.put(timeZoneIds[47], "Islamabad, Karachi, Tashkent");
nameMap.put(timeZoneIds[48], "Chennai, Kolkata, Mumbai, New Dehli");
nameMap.put(timeZoneIds[49], "Kathmandu");
nameMap.put(timeZoneIds[50], "Almaty, Novosibirsk");
nameMap.put(timeZoneIds[51], "Astana, Dhaka");
nameMap.put(timeZoneIds[52], "Sri Jayawardenepura");
nameMap.put(timeZoneIds[53], "Rangoon");
nameMap.put(timeZoneIds[54], "Bangkok, Hanoi, Jakarta");
nameMap.put(timeZoneIds[55], "Krasnoyarsk");
nameMap.put(timeZoneIds[56], "Beijing, Chongqing, Hong Kong, Urumqi");
nameMap.put(timeZoneIds[57], "Irkutsk, Ulaan Bataar");
nameMap.put(timeZoneIds[58], "Kuala Lumpur, Singapore");
nameMap.put(timeZoneIds[59], "Perth");
nameMap.put(timeZoneIds[60], "Taipei");
nameMap.put(timeZoneIds[61], "Osaka, Sapporo, Tokyo");
nameMap.put(timeZoneIds[62], "Seoul");
nameMap.put(timeZoneIds[63], "Yakutsk");
nameMap.put(timeZoneIds[64], "Adelaide");
nameMap.put(timeZoneIds[65], "Darwin");
nameMap.put(timeZoneIds[66], "Brisbane");
nameMap.put(timeZoneIds[67], "Canberra, Melbourne, Sydney");
nameMap.put(timeZoneIds[68], "Guam, Port Moresby");
nameMap.put(timeZoneIds[69], "Hobart");
nameMap.put(timeZoneIds[70], "Vladivostok");
nameMap.put(timeZoneIds[71], "Magadan, Solomon Is., New Caledonia");
nameMap.put(timeZoneIds[72], "Auckland, Wellington");
nameMap.put(timeZoneIds[73], "Fiji, Kamchatka, Marshall Is.");
nameMap.put(timeZoneIds[74], "Nuku'alofa");
}
/**
* Returns a list of all available time zone's as a String [][]. The first
* entry in each list item is the timeZoneID, and the second is the
* display name.
*
* The list of time zones attempts to be inclusive of all of the worlds
* zones while being as concise as possible. For "en" language locales
* the name is a friendly english name. For non-"en" language locales
* the standard JDK name is used for the given Locale. The GMT+/- time
* is also included for readability.
*
* @return a list of time zones, as a tuple of the zime zone ID, and its
* display name.
*/
public static String[][] getTimeZoneList() {
Locale jiveLocale = JiveGlobals.getLocale();
String[][] timeZoneList = timeZoneLists.get(jiveLocale);
if (timeZoneList == null) {
String[] timeZoneIDs = timeZoneIds;
// Now, create String[][] using the unique zones.
timeZoneList = new String[timeZoneIDs.length][2];
for (int i = 0; i < timeZoneList.length; i++) {
String zoneID = timeZoneIDs[i];
timeZoneList[i][0] = zoneID;
timeZoneList[i][1] = getTimeZoneName(zoneID, jiveLocale);
}
// Add the new list to the map of locales to lists
timeZoneLists.put(jiveLocale, timeZoneList);
}
return timeZoneList;
}
/**
* Returns the display name for a time zone. The display name is the name
* specified by the Java TimeZone class for non-"en" locales or a friendly english
* name for "en", with the addition of the GMT offset
* for human readability.
*
* @param zoneID the time zone to get the name for.
* @param locale the locale to use.
* @return the display name for the time zone.
*/
public static String getTimeZoneName(String zoneID, Locale locale) {
TimeZone zone = TimeZone.getTimeZone(zoneID);
StringBuilder buf = new StringBuilder();
// Add in the GMT part to the name. First, figure out the offset.
int offset = zone.getRawOffset();
if (zone.inDaylightTime(new Date()) && zone.useDaylightTime()) {
offset += (int)JiveConstants.HOUR;
}
buf.append('(');
if (offset < 0) {
buf.append("GMT-");
}
else {
buf.append("GMT+");
}
offset = Math.abs(offset);
int hours = offset / (int)JiveConstants.HOUR;
int minutes = (offset % (int)JiveConstants.HOUR) / (int)JiveConstants.MINUTE;
buf.append(hours).append(':');
if (minutes < 10) {
buf.append('0').append(minutes);
}
else {
buf.append(minutes);
}
buf.append(") ");
// Use a friendly english timezone name if the locale is en, otherwise use the timezone id
if ("en".equals(locale.getLanguage())) {
String name = nameMap.get(zoneID);
if (name == null) {
name = zoneID;
}
buf.append(name);
}
else {
buf.append(
zone.getDisplayName(true, TimeZone.LONG, locale).replace('_', ' ').replace('/',
' '));
}
return buf.toString();
}
/**
* Returns the specified resource bundle, which is a properties file
* that aids in localization of skins. This method is handy since it
* uses the class loader that other Jive classes are loaded from (hence,
* it can load bundles that are stored in jive.jar).
*
* @param baseName the name of the resource bundle to load.
* @param locale the desired Locale.
* @return the specified resource bundle, if it exists.
*/
public static ResourceBundle getResourceBundle(String baseName,
Locale locale) {
return ResourceBundle.getBundle(baseName, locale);
}
/**
* Returns an internationalized string loaded from a resource bundle.
* The locale used will be the locale specified by JiveGlobals.getLocale().
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @return the localized string.
*/
public static String getLocalizedString(String key) {
Locale locale = JiveGlobals.getLocale();
try {
ResourceBundle bundle = ResourceBundle.getBundle(resourceBaseName, locale);
return getLocalizedString(key, locale, null, bundle);
} catch (MissingResourceException mre) {
Log.error(mre.getMessage());
return key;
}
}
/**
* Returns an internationalized string loaded from a resource bundle using
* the passed in Locale.
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @param locale the locale to use for retrieving the appropriate
* locale-specific string.
* @return the localized string.
*/
public static String getLocalizedString(String key, Locale locale) {
ResourceBundle bundle = ResourceBundle.getBundle(resourceBaseName, locale);
return getLocalizedString(key, locale, null, bundle);
}
/**
* Returns an internationalized string loaded from a resource bundle using
* the locale specified by JiveGlobals.getLocale() substituting the passed
* in arguments. Substitution is handled using the
* {@link java.text.MessageFormat} class.
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @param arguments a list of objects to use which are formatted, then
* inserted into the pattern at the appropriate places.
* @return the localized string.
*/
public static String getLocalizedString(String key, List arguments) {
Locale locale = JiveGlobals.getLocale();
ResourceBundle bundle = ResourceBundle.getBundle(resourceBaseName, locale);
return getLocalizedString(key, locale, arguments, bundle);
}
/**
* Returns an internationalized string loaded from a resource bundle from the passed
* in plugin. If the plugin name is null, the key will be looked up using
* the standard resource bundle.
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @param pluginName the name of the plugin to load the require resource bundle from.
* @return the localized string.
*/
public static String getLocalizedString(String key, String pluginName) {
return getLocalizedString(key, pluginName, null);
}
/**
* Returns an internationalized string loaded from a resource bundle from the passed
* in plugin. If the plugin name is null, the key will be looked up using
* the standard resource bundle.
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @param pluginName the name of the plugin to load the require resource bundle from.
* @param arguments a list of objects to use which are formatted, then
* inserted into the pattern at the appropriate places.
* @return the localized string.
*/
public static String getLocalizedString(String key, String pluginName, List arguments) {
return getLocalizedString(key, pluginName, arguments, null, false);
}
/**
* Returns an internationalized string loaded from a resource bundle from
* the passed in plugin, using the passed in Locale.
*
* If the plugin name is null, the key will be looked up using the
* standard resource bundle.
*
* If the locale is null, the Jive Global locale will be used.
*
* @param key
* the key to use for retrieving the string from the appropriate
* resource bundle.
* @param pluginName
* the name of the plugin to load the require resource bundle
* from.
* @param arguments
* a list of objects to use which are formatted, then inserted
* into the pattern at the appropriate places.
* @param locale
* the locale to use for retrieving the appropriate
* locale-specific string.
* @param fallback
* if true, the global locale used by Openfire will be
* used if the requested locale is not available)
* @return the localized string.
*/
public static String getLocalizedString(String key, String pluginName, List arguments, Locale locale, boolean fallback) {
if (pluginName == null) {
return getLocalizedString(key, arguments);
}
if (locale == null) {
locale = JiveGlobals.getLocale();
}
String i18nFile = getI18nFile(pluginName);
// Retrieve classloader from pluginName.
final XMPPServer xmppServer = XMPPServer.getInstance();
PluginManager pluginManager = xmppServer.getPluginManager();
Plugin plugin = pluginManager.getPlugin(pluginName);
if (plugin == null) {
throw new NullPointerException("Plugin could not be located: " + pluginName);
}
ClassLoader pluginClassLoader = pluginManager.getPluginClassloader(plugin);
try {
ResourceBundle bundle = ResourceBundle.getBundle(i18nFile, locale, pluginClassLoader);
return getLocalizedString(key, locale, arguments, bundle);
}
catch (MissingResourceException mre) {
Locale jivesLocale = JiveGlobals.getLocale();
if (fallback && !jivesLocale.equals(locale)) {
Log.info("Could not find the requested locale. Falling back to default locale.", mre);
return getLocalizedString(key, pluginName, arguments, jivesLocale, false);
}
Log.error(mre.getMessage(), mre);
return key;
}
}
/**
* Retrieve the ResourceBundle that is used with this plugin.
*
* @param pluginName the name of the plugin.
* @return the ResourceBundle used with this plugin.
* @throws Exception thrown if an exception occurs.
*/
public static ResourceBundle getPluginResourceBundle(String pluginName) throws Exception {
final Locale locale = JiveGlobals.getLocale();
String i18nFile = getI18nFile(pluginName);
// Retrieve classloader from pluginName.
final XMPPServer xmppServer = XMPPServer.getInstance();
PluginManager pluginManager = xmppServer.getPluginManager();
Plugin plugin = pluginManager.getPlugin(pluginName);
if (plugin == null) {
throw new NullPointerException("Plugin could not be located.");
}
ClassLoader pluginClassLoader = pluginManager.getPluginClassloader(plugin);
return ResourceBundle.getBundle(i18nFile, locale, pluginClassLoader);
}
private static String getI18nFile(String pluginName) {
return pluginName.replace('.', '_') + "_i18n";
}
/**
* Returns an internationalized string loaded from a resource bundle using
* the passed in Locale substituting the passed in arguments. Substitution
* is handled using the {@link MessageFormat} class.
*
* @param key the key to use for retrieving the string from the
* appropriate resource bundle.
* @param locale the locale to use for retrieving the appropriate
* locale-specific string.
* @param arguments a list of objects to use which are formatted, then
* inserted into the pattern at the appropriate places.
* @param bundle The resource bundle from which to return the localized
* string.
* @return the localized string.
*/
public static String getLocalizedString(String key, Locale locale, List arguments,
ResourceBundle bundle)
{
if (key == null) {
throw new NullPointerException("Key cannot be null");
}
if (locale == null) {
locale = JiveGlobals.getLocale();
}
String value;
// See if the bundle has a value
try {
// The jdk caches resource bundles on it's own, so we won't bother.
value = bundle.getString(key);
// perform argument substitutions
if (arguments != null) {
MessageFormat messageFormat = new MessageFormat("");
messageFormat.setLocale(bundle.getLocale());
messageFormat.applyPattern(value);
try {
// This isn't fool-proof, but it's better than nothing
// The idea is to try and convert strings into the
// types of objects that the formatters expects
// i.e. Numbers and Dates
Format[] formats = messageFormat.getFormats();
for (int i = 0; i < formats.length; i++) {
Format format = formats[i];
if (format != null) {
if (format instanceof DateFormat) {
if (arguments.size() > i) {
Object val = arguments.get(i);
if (val instanceof String) {
DateFormat dateFmt = (DateFormat)format;
try {
val = dateFmt.parse((String)val);
arguments.set(i, val);
}
catch (ParseException e) {
Log.error(e.getMessage(), e);
}
}
}
}
else if (format instanceof NumberFormat) {
if (arguments.size() > i) {
Object val = arguments.get(i);
if (val instanceof String) {
NumberFormat nbrFmt = (NumberFormat)format;
try {
val = nbrFmt.parse((String)val);
arguments.set(i, val);
}
catch (ParseException e) {
Log.error(e.getMessage(), e);
}
}
}
}
}
}
value = messageFormat.format(arguments.toArray());
}
catch (IllegalArgumentException e) {
Log.error("Unable to format resource string for key: "
+ key + ", argument type not supported");
value = "";
}
}
}
catch (java.util.MissingResourceException mre) {
Log.warn("Missing resource for key: " + key
+ " in locale " + locale.toString());
value = "";
}
return value;
}
/**
* Returns an internationalized String representation of the number using
* the default locale.
*
* @param number the number to format.
* @return an internationalized String representation of the number.
*/
public static String getLocalizedNumber(long number) {
return NumberFormat.getInstance().format(number);
}
/**
* Returns an internationalized String representation of the number using
* the specified locale.
*
* @param number the number to format.
* @param locale the locale to use for formatting.
* @return an internationalized String representation of the number.
*/
public static String getLocalizedNumber(long number, Locale locale) {
return NumberFormat.getInstance(locale).format(number);
}
/**
* Returns an internationalized String representation of the number using
* the default locale.
*
* @param number the number to format.
* @return an internationalized String representation of the number.
*/
public static String getLocalizedNumber(double number) {
return NumberFormat.getInstance().format(number);
}
/**
* Returns an internationalized String representation of the number using
* the specified locale.
*
* @param number the number to format.
* @param locale the locale to use for formatting.
* @return an internationalized String representation of the number.
*/
public static String getLocalizedNumber(double number, Locale locale) {
return NumberFormat.getInstance(locale).format(number);
}
}