for (final String f : facetFields) {
            if (field.equals(f)) {
                flag = true;
            }
        }
        return flag;
    }

    public boolean isFacetSortValue(final String sort) {
        return "count".equals(sort) || "index".equals(sort);
    }

    public void setApiResponseFields(final String[] fields) {
        apiResponseFieldSet = new HashSet<>();