if (or.left() instanceof EqualTo
&& or.right() instanceof EqualTo
&& ((EqualTo) or.left()).attribute().equals(SchemaToStructTypeConverter.GROUP)
&& ((EqualTo) or.right()).attribute().equals(SchemaToStructTypeConverter.GROUP)) {
final Set<String> groups = new HashSet<>();
groups.add((String) ((EqualTo) or.left()).value());
groups.add((String) ((EqualTo) or.right()).value());
LOGGER.info("Filter {} specifies that {} should be {} or {}", filter, SchemaToStructTypeConverter.GROUP,
((EqualTo) or.left()).value(), ((EqualTo) or.right()).value());
return groups;