final SearchRequestBuilder builder = client.prepareSearch(index);

        if (skipDuplicateWords) {
            builder.setSize(size * 2);
        } else {
            builder.setSize(size);
        }

        // set query.
        final QueryBuilder q = buildQuery(query, fields);

        // set function score

                .execute().actionGet().getHits().getTotalHits().value > 0);

        urlQueueService.delete("sessionId");
        assertFalse(fesenClient.prepareSearch("fess_crawler.queue").setQuery(QueryBuilders.termQuery("sessionId", "sessionId")).setSize(0)
                .execute().actionGet().getHits().getTotalHits().value > 0);

    }

    private int queryFreqThreshold = 10;

    private final List<String> excludeWords = new ArrayList<>();

    public void setIndex(final String index) {
        this.index = index;
    }

    public void setSize(final int size) {
        this.size = size;
    }

    public void setSeed(final String seed) {
        this.seed = seed;
    }

    public void setWindowSize(final int windowSize) {

                if (scrollId == null) {
                    final SearchRequestBuilder builder = client.prepareSearch().setIndices(indexName).setScroll(settings.getScrollTimeout())
                            .setQuery(queryBuilder).setSize(scrollSize);
                    for (final SortBuilder<?> sortBuilder : sortList) {
                        builder.addSort(sortBuilder);
                    }

  private void verifyTableSize(int inputSize, int setSize, int tableSize) {
    Builder<Integer> builder = ImmutableSet.builder();
    for (int i = 0; i < inputSize; i++) {
      builder.add(i % setSize);
    }
    ImmutableSet<Integer> set = builder.build();
    assertTrue(set instanceof RegularImmutableSet);
    assertEquals(
        "Input size " + inputSize + " and set size " + setSize,
        tableSize,

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

        }
    }

    public int getCount(final Consumer<SearchRequestBuilder> callback) {
        final TotalHits totalHits = getClient().get(c -> {
            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;
    }

            throw new SuggestIndexException(deleteResponse.getErrors().get(0));
        }

        final List<SuggestItem> updateItems = new ArrayList<>();
        SearchResponse response = client.prepareSearch(index).setSize(500).setScroll(settings.getScrollTimeout())
                .setQuery(QueryBuilders.rangeQuery(FieldNames.DOC_FREQ).gte(1)).execute().actionGet(settings.getSearchTimeout());
        String scrollId = response.getScrollId();

            return StringUtil.EMPTY_STRINGS;
        }
        final SearchResponse response = client.prepareSearch(index).setQuery(QueryBuilders.termQuery(fessConfig.getIndexFieldUrl(), url))
                .setFetchSource(false).setSize(fessConfig.getPageScoreBoosterMaxFetchSizeAsInteger()).execute().actionGet(requestTimeout);
        return Arrays.stream(response.getHits().getHits()).map(SearchHit::getId).toArray(n -> new String[n]);
    };

        SearchResponse response = getClient().get(c -> c.prepareSearch(index).setScroll(new TimeValue(scrollTimeout))
                .setQuery(QueryBuilders.boolQuery().filter(QueryBuilders.termQuery(SESSION_ID, sessionId))).setSize(scrollSize).execute());
        String scrollId = response.getScrollId();
        try {
            while (scrollId != null) {
                final SearchHits searchHits = response.getHits();