@Override
public Capacity buildConstraint(VJobElementBuilder eBuilder, List<PBVJob.vjob.Param> args)
throws ConstraintBuilderException {
PBPlacementConstraintBuilders.ensureArity(this, args, 2);
ManagedElementSet<Node> ns = PBPlacementConstraintBuilders.makeNodes(eBuilder, args.get(0));
if (ns.isEmpty()) {
throw new ConstraintBuilderException(args.get(0) + " is an empty set");
}
int v = PBPlacementConstraintBuilders.makeInt(args.get(1));
if (v < 0) {
throw new ConstraintBuilderException("capacity can not be negative (" + v + ")");
}
return new Capacity(ns, v);
}
@Override
public Root buildConstraint(List<VJobElement> args) throws ConstraintBuilderException {
if (args.size() != 1) {
throw new ConstraintBuilderException(this);
}
try {
ManagedElementSet<VirtualMachine> vms = (ManagedElementSet<VirtualMachine>) args.get(0);
if (vms.isEmpty()) {
throw new ConstraintBuilderException("Empty set not allowed");
}
return new Root(vms);
} catch (ClassCastException e) {
throw new ConstraintBuilderException(getSignature(), e);
}
}
