private Endpoint computeEndpoint(String serviceName) {
Service service = partition.getServices().get(serviceName);
if (service != null) {
if (service.getEndpoints().containsKey(region)) {
Endpoint merged =
Endpoint.merge(
partition.getDefaults(),
Endpoint.merge(service.getDefaults(), service.getEndpoints().get(region)));
return merged;
} else if (service.isPartitionWideEndpointAvailable() && !service.isRegionalized()) {
// partition doesn't have any information about a service.
Endpoint merged =
Endpoint.merge(
partition.getDefaults(),
Endpoint.merge(
service.getDefaults(),
service.getEndpoints().get(service.getPartitionEndpoint())));
return merged;
} else {
if (partition.getDefaults() != null && partition.getDefaults().getHostName() != null) {
return partition.getDefaults();
}
}
}
return null;
}
@Override
public Collection<String> getAvailableEndpoints() {
final List<String> endpoints = new ArrayList<String>();
for (String service : partition.getServices().keySet()) {
if (isServiceSupported(service)) {
endpoints.add(getServiceEndpoint(service));
}
}
return Collections.unmodifiableCollection(endpoints);
}
private boolean isServicePartitionWide(String serviceName) {
return partition.getServices().get(serviceName) != null
&& partition.getServices().get(serviceName).getPartitionEndpoint() != null;
}
/**
* This method returns true only if the metadata for the service contains the given region in the
* list of supported regions.
*/
private boolean isServiceSupportedInRegion(String serviceName) {
return partition.getServices().get(serviceName) != null
&& partition.getServices().get(serviceName).getEndpoints().containsKey(region);
}