@Override
public boolean isAvailable(Resource resource) {
checkNotNull(resource);
checkArgument(resource instanceof DiscreteResource || resource instanceof ContinuousResource);
// check if it's registered or not.
Versioned<Set<Resource>> v = childMap.get(resource.parent().get());
if (v == null || !v.value().contains(resource)) {
return false;
}
if (resource instanceof DiscreteResource) {
// check if already consumed
return getConsumers((DiscreteResource) resource).isEmpty();
} else {
ContinuousResource requested = (ContinuousResource) resource;
ContinuousResource registered =
v.value()
.stream()
.filter(c -> c.id().equals(resource.id()))
.findFirst()
.map(c -> (ContinuousResource) c)
.get();
if (registered.value() < requested.value()) {
// Capacity < requested, can never satisfy
return false;
}
// check if there's enough left
return isAvailable(requested);
}
}
