public static Filter create(final PrincipalKeys principalsKeys) {
if (isSuperUser()) {
return null;
}
if (principalsKeys.isEmpty()) {
return createNoPrincipalsFilter();
}
final ValueFilter.Builder valueFilterBuilder =
ValueFilter.create().fieldName(NodeIndexPath.PERMISSIONS_READ.toString());
for (final PrincipalKey principalKey : principalsKeys) {
valueFilterBuilder.addValue(ValueFactory.newString(principalKey.toString()));
}
return valueFilterBuilder.build();
}
private static Filter createNoPrincipalsFilter() {
return ValueFilter.create()
.fieldName(NodeIndexPath.PERMISSIONS_READ.toString())
.addValue(ValueFactory.newString(PrincipalKey.ofAnonymous().toString()))
.build();
}