}

        final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        final String minimumShouldMatch = fessConfig.getQueryBoolMinimumShouldMatch();
        if (StringUtil.isNotBlank(minimumShouldMatch)) {
            boolQuery.minimumShouldMatch(minimumShouldMatch);
        }
        return new DefaultQueryBuilder(boolQuery);
    }

    /**

        boolBuilder.add(new TermQuery(new Term("field2", "value2")), BooleanClause.Occur.SHOULD);
        BooleanQuery boolQuery = boolBuilder.build();
        BoostQuery boostQuery = new BoostQuery(boolQuery, 2.0f);

        QueryContext context = new QueryContext("test", false);
        QueryBuilder result = queryProcessor.execute(context, boostQuery, 1.0f);

        if (!kinds.isEmpty()) {
            filterList.add(buildFilterQuery(FieldNames.KINDS, kinds));
        }

        if (filterList.size() > 0) {
            final BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
            boolQueryBuilder.must(queryBuilder);
            filterList.forEach(boolQueryBuilder::filter);
            builder.setQuery(boolQueryBuilder);
        } else {
            builder.setQuery(queryBuilder);

        return ComponentUtil.getSearchEngineClient().getDocument(fessConfig.getIndexDocumentSearchIndex(), builder -> {
            final BoolQueryBuilder boolQuery =
                    QueryBuilders.boolQuery().must(QueryBuilders.termQuery(fessConfig.getIndexFieldDocId(), docId));
            final Set<String> roleSet = ComponentUtil.getRoleQueryHelper().build(SearchRequestType.JSON); // TODO SearchRequestType?

                } else {
                    final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery().filter(QueryBuilders.termQuery(SESSION_ID, sessionId));
                    if (queryBuilder != null) {
                        boolQuery.must(queryBuilder);
                    }
                    builder.setQuery(boolQuery);
                }
            } else if (queryBuilder != null) {

            protected FilterChain createDefaultFilterChain() {
                return (context, query, boost) -> {
                    called.set(true);
                    return QueryBuilders.boolQuery();
                };
            }
        };
        queryProcessor.init();

        QueryContext context = new QueryContext(null, false);
        MatchAllDocsQuery query = new MatchAllDocsQuery();

     *
     * @param time The timestamp to purge data before.
     */
    public void purgeDocumentSuggest(final LocalDateTime time) {
        final BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder
                .must(QueryBuilders.rangeQuery(FieldNames.TIMESTAMP).lt(time.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli()));

                return;
            }
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            final BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery()//
                    .must(QueryBuilders.termQuery(fessConfig.getIndexFieldConfigId(), dataConfig.getConfigId()))//
                    .mustNot(QueryBuilders.termQuery(fessConfig.getIndexFieldSegment(), sessionId));

     */
    public SuggestDeleteResponse deleteDocumentWords() {
        final long start = System.currentTimeMillis();

        final SuggestDeleteResponse deleteResponse = deleteByQuery(QueryBuilders.boolQuery()
                .must(QueryBuilders.rangeQuery(FieldNames.DOC_FREQ).gte(1))
                .mustNot(QueryBuilders.matchPhraseQuery(FieldNames.KINDS, SuggestItem.Kind.QUERY.toString()))

    /**
     * Builds the OpenSearch query for popular words.
     * @return The QueryBuilder instance.
     */
    protected QueryBuilder buildQuery() {
        final BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery();
        queryBuilder.must(QueryBuilders.termQuery(FieldNames.KINDS, SuggestItem.Kind.QUERY.toString()));
        queryBuilder.mustNot(QueryBuilders.existsQuery(FieldNames.READING_PREFIX + "1"));