searchEngineClient.scrollSearch(fessConfig.getIndexDocumentUpdateIndex(), requestBuilder -> {
                requestBuilder.setQuery(queryBuilder).setSize((int) numFound);
                if (fields != null) {
                    requestBuilder.setFetchSource(fields, null);
                }
                return true;
            }, entity -> {

        final GetRequestBuilder requestBuilder = client.prepareGet(index, id);
        if (condition.build(requestBuilder)) {
            response = requestBuilder.execute().actionGet(ComponentUtil.getFessConfig().getIndexSearchTimeout());
        }
        final long execTime = systemHelper.getCurrentTimeAsLong() - startTime;

        return searchResult.build(requestBuilder, execTime, OptionalEntity.ofNullable(response, () -> {}));