}
            if (fieldSet.contains(NUMBER_OF_PENDING_TASKS)) {
                builder.field(NUMBER_OF_PENDING_TASKS, response.getNumberOfPendingTasks());
            }
            if (fieldSet.contains(NUMBER_OF_IN_FLIGHT_FETCH)) {
                builder.field(NUMBER_OF_IN_FLIGHT_FETCH, response.getNumberOfInFlightFetch());
            }

            engineObj.unassignedShards = response.getUnassignedShards();
            engineObj.delayedUnassignedShards = response.getDelayedUnassignedShards();
            engineObj.numberOfPendingTasks = response.getNumberOfPendingTasks();
            engineObj.numberOfInFlightFetch = response.getNumberOfInFlightFetch();
            engineObj.status = response.getStatus().name().toLowerCase(Locale.ROOT);
        } catch (final Exception e) {