private static String localeToLanguageTag(Locale locale) {
/*
* This might seem redundant, but a language can also contain a
* country/region and a variant. Stating that e.g language
* "ar" should return "ar" means that "messages_ar.properties"
* will be used for any country/region and variant of Arabic.
* This should be true until UMS contains multiple dialects of Arabic,
* in which case different codes would have to be returned for the
* different dialects.
*/
if (locale == null) {
return null;
}
String languageTag = locale.getLanguage();
if (languageTag != null && !languageTag.isEmpty()) {
switch (languageTag) {
case "en":
if (locale.getCountry().equalsIgnoreCase("GB")) {
return "en-GB";
} else {
return "en-US";
}
case "pt":
if (locale.getCountry().equalsIgnoreCase("BR")) {
return "pt-BR";
} else {
return "pt";
}
case "nb":
case "nn":
return "no";
case "cmn":
case "zh":
if (locale.getScript().equalsIgnoreCase("Hans")) {
return "zh-Hans";
} else if (locale.getCountry().equalsIgnoreCase("CN")
|| locale.getCountry().equalsIgnoreCase("SG")) {
return "zh-Hans";
} else {
return "zh-Hant";
}
default:
return languageTag;
}
} else {
return null;
}
}
