public T fromDatacenter(Datacenter in) {
return this.id(in.getId())
.name(in.getName())
.longName(in.getLongName())
.locationAddress(in.getLocationAddress())
.regions(in.getRegions());
}
private void checkDatacenter(Datacenter dc) {
assert dc.getId() > 0 : dc;
assert dc.getName() != null : dc;
assert dc.getLongName() != null : dc;
for (Region region : dc.getRegions()) checkRegion(region);
}