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) {

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

        final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery().must(QueryBuilders.rangeQuery(freqField).gte(1));
        for (final SuggestItem.Kind kind : excludeKinds) {
            boolQuery.mustNot(QueryBuilders.matchPhraseQuery(FieldNames.KINDS, kind.toString()));
        }

        final SuggestDeleteResponse deleteResponse = deleteByQuery(index, boolQuery);
        if (deleteResponse.hasError()) {

     * @param boolQuery Consumer that configures the boolean query.
     */
    public void addQuery(final Consumer<BoolQueryBuilder> boolQuery) {
        BoolQueryBuilder builder;
        if (queryBuilder instanceof MatchAllQueryBuilder) {
            builder = QueryBuilders.boolQuery();
        } else {
            builder = QueryBuilders.boolQuery().must(queryBuilder);
        }

                List<String> readingList = new ArrayList<>();

                final String[] langsArray = languages.toArray(new String[languages.size()]);

                final BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
                final String[] queries = q.replace(fullWidthSpace, " ").replaceAll(" +", " ").trim().split(" ");
                for (int i = 0; i < queries.length; i++) {

            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();

    /**
     * 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"));