facetField = facetResponse.getFieldList().stream().map(field -> {
                        final Map<String, Object> fieldMap = new HashMap<>(2, 1f);
                        fieldMap.put("name", field.getName());
                        fieldMap.put("result", field.getValueCountMap().entrySet().stream().map(e -> {
                            final Map<String, Object> valueCount = new HashMap<>(2, 1f);