/** Unlike EC2, you cannot default GCE instances to a region. Hence, we constrain to zones. */
@Override
public Iterable<Location> listLocations() {
Location provider = justProvider.get().iterator().next();
ImmutableList.Builder<Location> zones = ImmutableList.builder();
for (Region region : concat(api.regions().list())) {
Location regionLocation =
new LocationBuilder()
.scope(LocationScope.REGION)
.id(region.name())
.description(region.selfLink().toString())
.parent(provider)
.build();
for (URI zoneSelfLink : region.zones()) {
String zoneName = toName(zoneSelfLink);
zones.add(
new LocationBuilder()
.scope(LocationScope.ZONE)
.id(zoneName)
.description(zoneSelfLink.toString())
.parent(regionLocation)
.build());
}
}
return zones.build();
}
