stats.keyField(keyField);
stats.valueField(valueField);
stats.order(TermsStatsFacet.ComparatorType.fromString(order.toString().toLowerCase()));
stats.size(size);
stats.facetFilter(standardFilters(range, filter));
srb.addFacet(stats);
final SearchRequest request = srb.request();
SearchResponse r = c.search(request).actionGet();