});
        final OpenSearchResultList<OpenSearchAccessResult> targetList = new OpenSearchResultList<>();
        final SearchHits hits = response.getHits();
        final TotalHits totalHits = hits.getTotalHits();
        final long totalHitsValue = totalHits != null ? totalHits.value : 0;
        targetList.setTotalHits(totalHitsValue);
        targetList.setTookInMillis(response.getTook().getMillis());

                items.add(SuggestItem.parseSource(source));
            }
        }

        return new PopularWordsResponse(index, searchResponse.getTook().getMillis(), words, searchResponse.getHits().getTotalHits().value,
                items);
    }

                .setTrackTotalHits(true).execute().actionGet(settings.getSearchTimeout());
        return response.getHits().getTotalHits().value;
    }

            }
        }
        firstWords.addAll(secondWords);
        firstItems.addAll(secondItems);
        return new SuggestResponse(index, searchResponse.getTook().getMillis(), firstWords, searchResponse.getHits().getTotalHits().value,
                firstItems);
    }

    protected boolean isFirstWordMatching(final boolean singleWordQuery, final boolean hiraganaQuery, final String text) {

            final SearchRequestBuilder builder = c.prepareSearch(index).setSize(0).setTrackTotalHits(true);
            callback.accept(builder);
            return builder.execute();
        }).getHits().getTotalHits();
        return totalHits != null ? (int) totalHits.value : 0;
    }

    protected <T> T get(final Class<T> clazz, final String sessionId, final String url) {
        final String id = getId(sessionId, url);

                    .actionGet(settings.getSearchTimeout());
            String scrollId = response.getScrollId();

            final Map<String, Object>[] array = new Map[(int) response.getHits().getTotalHits().value];

            int count = 0;
            try {
                while (scrollId != null) {
                    final SearchHit[] hits = response.getHits().getHits();

                .setTrackTotalHits(true).execute().actionGet(suggestSettings.getSearchTimeout());
        return searchResponse.getHits().getTotalHits().value;
    }

    private String getSearchAlias(final String index) {
        return index;
    }

    private String getUpdateAlias(final String index) {
        return index + ".update";
    }

                .setQuery(queryBuilder).setSize(0).setTrackTotalHits(true).execute().actionGet(fessConfig.getIndexSearchTimeout());
        final TotalHits totalHits = countResponse.getHits().getTotalHits();
        if (totalHits != null) {
            return totalHits.value;
        }
        return 0;
    }

    public long deleteBySessionId(final String sessionId) {