}
            return null;
        }).filter(q -> q != null).toArray(n -> new QueryBuilder[n]);

        if (queryBuilders.length == 1) {
            builder = queryBuilders[0];
        } else if (queryBuilders.length > 1) {
            final BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
            StreamUtil.stream(queryBuilders).of(stream -> stream.forEach(boolQuery::must));
            builder = boolQuery;
        }

        final BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder
                .must(QueryBuilders.rangeQuery(FieldNames.TIMESTAMP).lt(time.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli()));

        boolQueryBuilder.must(QueryBuilders.termQuery(FieldNames.KINDS, SuggestItem.Kind.DOCUMENT.toString()));

        // Using template method
        QueryBuilder result1 = queryCommand.convertWithFieldCheck(fessConfig, context1, "title", "test", 1.0f,
                (field, boost) -> QueryBuilders.matchQuery(field, "test").boost(boost),
                (field, text, boost) -> QueryBuilders.matchQuery(field, text).boost(boost));

        // Manual implementation (for comparison)
        QueryBuilder result2;

     * @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"));

import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.core.message.UserMessages;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Query command for handling wildcard queries.
 * Converts Lucene WildcardQuery objects to OpenSearch QueryBuilder objects,
 * supporting wildcard pattern matching with configurable case sensitivity.
 */

     * @param q The query string.
     * @param fields The fields to search in.
     * @return The QueryBuilder instance.
     */
    public QueryBuilder buildQuery(final String q, final List<String> fields) {
        try {
            final QueryBuilder queryBuilder;
            if (Strings.isNullOrEmpty(q)) {
                queryBuilder = QueryBuilders.matchAllQuery();
            } else {
                final String fullWidthSpace = "\u3000";

                .setQuery(QueryBuilders.termQuery("sessionId", sessionId1))
                .setSize(0)
                .execute()
                .actionGet()
                .getHits()
                .getTotalHits()
                .value() > 0);
        assertTrue(fesenClient.prepareSearch("fess_crawler.filter")
                .setQuery(QueryBuilders.termQuery("sessionId", sessionId2))

        QueryBuilder queryBuilder = QueryBuilders.termQuery("field", "value");
        queryContext.setQueryBuilder(queryBuilder);
        assertEquals(queryBuilder, queryContext.getQueryBuilder());
    }

    // Test addFunctionScore
    @Test
    public void test_addFunctionScore() {
        queryContext = new QueryContext("test", false);

        // Filter by MIME type
        final List<OpenSearchAccessResult> htmlResults = dataService.getAccessResultList(builder -> {
            builder.setQuery(QueryBuilders.boolQuery()
                    .must(QueryBuilders.termQuery("sessionId", sessionId))
                    .must(QueryBuilders.termQuery("mimeType", "text/html")));
            builder.setSize(10);
        });

        assertNotNull(htmlResults);

        // Build query to exclude certain kinds
        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()));
        }