/** The key of the configuration. e.g. webconfig */
    String ONLINE_HELP_NAME_WEBCONFIG = "online.help.name.webconfig";

    /** The key of the configuration. e.g. searchlist */
    String ONLINE_HELP_NAME_SEARCHLIST = "online.help.name.searchlist";

    /** The key of the configuration. e.g. log */
    String ONLINE_HELP_NAME_LOG = "online.help.name.log";

    /** The key of the configuration. e.g. general */

        try {
            while (scrollId != null) {
                final SearchHits searchHits = response.getHits();
                if (searchHits.getHits().length == 0) {
                    break;
                }

                for (final SearchHit searchHit : searchHits) {
                    final Map<String, Object> source = searchHit.getSourceAsMap();

            for (final SearchHit searchHit : searchHits.getHits()) {
                final Map<String, Object> docMap = parseSearchHit(fessConfig, hlPrefix, searchHit);

                if (fessConfig.isResultCollapsed()) {
                    final Map<String, SearchHits> innerHits = searchHit.getInnerHits();
                    if (innerHits != null) {

        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                if (!handler.apply(searchHits)) {
                    break;
                }

                final SearchHits searchHits = response.getHits();
                if (searchHits.getHits().length == 0) {
                    break;
                }

                final BulkResponse bulkResponse = getClient().get(c -> {
                    final BulkRequestBuilder builder = c.prepareBulk();
                    for (final SearchHit searchHit : searchHits) {

        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                if (!handler.apply(searchHits)) {
                    break;
                }

        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                if (!handler.apply(searchHits)) {
                    break;
                }

                final SearchHits searchHits = response.getHits();
                if (searchHits.getHits().length == 0) {
                    break;
                }

                final BulkResponse bulkResponse = getClient().get(c -> {
                    final BulkRequestBuilder bulkBuilder = c.prepareBulk();
                    for (final SearchHit searchHit : searchHits) {

            while (scrollId != null) {
                final SearchHits searchHits = response.getHits();
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {

    }

    public static long scroll(final String index, final Function<SearchHit, Boolean> callback) {
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        return client.<SearchHit> scrollSearch(index, searchRequestBuilder -> true, (searchResponse, hit) -> hit,
                hit -> callback.apply(hit));
    }