/**
* Obtains an instance of {@code Chronology} from a locale.
* <p>
* See {@link Chronology#ofLocale(Locale)}.
*
* @param Locale $locale the locale to use to obtain the calendar system, not null
* @return Chronology the calendar system associated with the locale, not null
* @throws DateTimeException if the locale-specified calendar cannot be found
*/
static function ofLocale(Locale $locale)
{
$type = $locale->getUnicodeLocaleType("ca");
if ($type == null || "iso" === $type || "iso8601" === $type) {
return IsoChronology::INSTANCE();
}
// Not pre-defined; lookup by the type
// do {
// Chronology chrono = CHRONOS_BY_TYPE->get(type);
// if (chrono != null) {
// return chrono;
// }
// // If not found, do the initialization (once) and repeat the lookup
// } while (initCache());
//
//// Look for a Chronology using ServiceLoader of the Thread's ContextClassLoader
//// Application provided Chronologies must not be cached
// @SuppressWarnings("rawtypes")
// ServiceLoader < Chronology> loader = ServiceLoader->load(Chronology .class);
// for (Chronology chrono : $loader) {
// if ($type->equals($chrono->getCalendarType())) {
// return $chrono;
// }
// }
throw new DateTimeException("Unknown calendar system: " . $type);
}
