private static Privilege[] filterPrivileges(
Privilege[] privileges, List<Privilege> privilegesToFilterOut) {
Set<Privilege> filteredResult = new HashSet<Privilege>();
for (Privilege privilege : privileges) {
if (!privilegesToFilterOut.contains(privilege)) {
if (privilege.isAggregate()
&& areIntersecting(privilege.getDeclaredAggregatePrivileges(), privilegesToFilterOut)) {
// We de-aggregate a privilege in case any of its children are to be filtered out, since a
// privilege is valid only if all its children are valid.
filteredResult.addAll(
Arrays.asList(
filterPrivileges(
privilege.getDeclaredAggregatePrivileges(), privilegesToFilterOut)));
} else {
filteredResult.add(privilege);
}
}
}
return filteredResult.toArray(new Privilege[filteredResult.size()]);
}
