/**
* Registers the provider.
*
* @param provider the provider to register, not null
* @throws ZoneRulesException if unable to complete the registration
*/
private static void registerProvider0(ZoneRulesProvider provider) {
for (String zoneId : provider.provideZoneIds()) {
Objects.requireNonNull(zoneId, "zoneId");
ZoneRulesProvider old = ZONES.putIfAbsent(zoneId, provider.provideBind(zoneId));
if (old != null) {
throw new ZoneRulesException(
"Unable to register zone as one already registered with that ID: "
+ zoneId
+ ", currently loading from provider: "
+ provider);
}
}
}
