Collator* U_EXPORT2 Collator::createInstance(const Locale& desiredLocale,
UErrorCode& status)
{
if (U_FAILURE(status))
return 0;
#if !UCONFIG_NO_SERVICE
if (hasService()) {
Locale actualLoc;
Collator *result =
(Collator*)gService->get(desiredLocale, &actualLoc, status);
// Ugly Hack Alert! If the returned locale is empty (not root,
// but empty -- getName() == "") then that means the service
// returned a default object, not a "real" service object. In
// that case, the locale metadata (valid & actual) is setup
// correctly already, and we don't want to overwrite it. (TODO
// remove in 3.0) [aliu]
if (*actualLoc.getName() != 0) {
result->setLocales(desiredLocale, actualLoc, actualLoc);
}
return result;
}
#endif
return makeInstance(desiredLocale, status);
}
virtual UObject* getKey(ICUServiceKey& key, UnicodeString* actualReturn, UErrorCode& status) const {
UnicodeString ar;
if (actualReturn == NULL) {
actualReturn = &ar;
}
Collator* result = (Collator*)ICULocaleService::getKey(key, actualReturn, status);
// Ugly Hack Alert! If the actualReturn length is zero, this
// means we got a default object, not a "real" service-created
// object. We don't call setLocales() on a default object,
// because that will overwrite its correct built-in locale
// metadata (valid & actual) with our incorrect data (all we
// have is the requested locale). (TODO remove in 3.0) [aliu]
if (result && actualReturn->length() > 0) {
const LocaleKey& lkey = (const LocaleKey&)key;
Locale canonicalLocale("");
Locale currentLocale("");
LocaleUtility::initLocaleFromName(*actualReturn, currentLocale);
result->setLocales(lkey.canonicalLocale(canonicalLocale), currentLocale, currentLocale);
}
return result;
}
