@Nullable
private static List<Locale> extractLocalesFromString(final String rawLocales) {
if (rawLocales.isEmpty()) {
return Collections.emptyList();
}
final String[] splitRawLocales = rawLocales.split(",");
final List<Locale> locales = new ArrayList<>(splitRawLocales.length);
for (String rawLocale : splitRawLocales) {
final Locale locale = PropertiesUtil.getLocale("_" + rawLocale + ".properties");
if (locale == PropertiesUtil.DEFAULT_LOCALE) {
return null;
} else if (!locales.contains(locale)) {
locales.add(locale);
}
}
return locales;
}
