final DefaultQueryBuilderFunction builder) {
        final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
        boolQuery.should(builder.apply(fessConfig.getIndexFieldTitle(), fessConfig.getQueryBoostTitleAsDecimal().floatValue()));
        boolQuery.should(builder.apply(fessConfig.getIndexFieldContent(), fessConfig.getQueryBoostContentAsDecimal().floatValue()));

                    boolQuery.should(queryBuilder);
                    break;
                case MUST_NOT:
                    boolQuery.mustNot(queryBuilder);
                    break;
                default:
                    break;
                }
            }
        }
        if (boolQuery.hasClauses()) {
            return boolQuery;
        }
        return null;
    }

            if (list.size() == 1) {
                return list.get(0);
            }
            if (list.size() > 1) {
                final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
                list.forEach(boolQuery::should);
                return boolQuery;
            }
            return null;
        }).filter(q -> q != null).toArray(n -> new QueryBuilder[n]);

        if (queryBuilders.length == 1) {

                }).forEach(docId -> {
                    boolQuery.should(QueryBuilders.termQuery(fessConfig.getIndexFieldDocId(), docId));
                });

                if (boolQuery.hasClauses()) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Loaded KeyMatch Boost Query: {}", boolQuery);
                    }

    }

    public void addQuery(final Consumer<BoolQueryBuilder> boolQuery) {
        BoolQueryBuilder builder;
        if (queryBuilder instanceof MatchAllQueryBuilder) {
            builder = QueryBuilders.boolQuery();
        } else {
            builder = QueryBuilders.boolQuery().must(queryBuilder);
        }
        boolQuery.accept(builder);
        if (builder.hasClauses()) {
            queryBuilder = builder;

            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();

        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) {

    }

    @Override
    protected String getValidationError() {
        return null;
    }

    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"));