public static List<TermQuery> getTermQueryList(final Query query, final String[] fields) {
        if (query instanceof final BooleanQuery booleanQuery) {
            final List<BooleanClause> clauses = booleanQuery.clauses();
            final List<TermQuery> queryList = new ArrayList<>();
            for (final BooleanClause clause : clauses) {
                final Query q = clause.query();
                if (q instanceof BooleanQuery) {

import java.io.Closeable;

/**
 * The {@code QueryLogReader} interface provides methods to read query logs and close the reader.
 * It extends the {@code Closeable} interface, ensuring that resources can be released when no longer needed.
 */
public interface QueryLogReader extends Closeable {
    /**
     * Reads a query log.
     * @return The query log.
     */
    QueryLog read();

    @Override
    void close();

            if (query.length() == 1) {
                return UnicodeBlock.of(query.charAt(0)) != UnicodeBlock.HIRAGANA;
            }
            return true;
        }
        return false;
    }

    /**
     * Checks if the query is a hiragana query.
     * @param query The query string.

        request.setSize(size);
        return this;
    }

    /**
     * Sets the query string for the request.
     * @param query The query string.
     * @return This builder instance.
     */
    public SuggestRequestBuilder setQuery(final String query) {
        request.setQuery(query);
        return this;
    }

    /**
     * Adds a tag to filter by.
     * @param tag The tag.

 * <li>{@link #deleteByQuery(String)} - Delete suggest items by query string.
 * <li>{@link #deleteByQuery(QueryBuilder)} - Delete suggest items by query builder.
 * <li>{@link #deleteAll()} - Delete all suggest items.
 * <li>{@link #deleteDocumentWords()} - Delete document words.
 * <li>{@link #deleteQueryWords()} - Delete query words.
 * <li>{@link #indexFromQueryLog(QueryLog)} - Index from a single query log.

        // Test normal query
        String query = "test query";
        String field = "content";
        String[] keywords = SuggestUtil.parseQuery(query, field);
        assertNotNull(keywords);
        assertEquals(2, keywords.length);
        assertEquals("test", keywords[0]);
        assertEquals("query", keywords[1]);

        // Test empty query

            ReadingConverter readingConverter, Normalizer normalizer, SuggestAnalyzer analyzer, String[] langs);

    /**
     * Parses the given query log and returns a list of suggest items.
     *
     * @param queryLog the query log to parse
     * @param fields the fields to extract from the query log
     * @param tagFieldNames the names of the fields to use as tags
     * @param roleFieldName the name of the field to use for roles

/**
 * The QueryLog class represents a log entry containing a query string and an optional filter query string.
 */
public class QueryLog {
    private final String q;
    private final String fq;

    /**
     * Constructor for QueryLog.
     * @param queryString The query string.
     * @param filterQueryString The filter query string (can be null).
     */

        SuggestItem.Kind[] kinds1 = { SuggestItem.Kind.QUERY };
        SuggestItem.Kind[] kinds2 = { SuggestItem.Kind.DOCUMENT, SuggestItem.Kind.QUERY };

        SuggestItem.Kind[] result = SuggestItem.concatKinds(kinds1, kinds2);

        assertNotNull(result);
        assertEquals(2, result.length); // Should not have duplicates
        assertTrue(Arrays.asList(result).contains(SuggestItem.Kind.QUERY));

import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.sort.SortBuilder;
import org.opensearch.transport.client.Client;

/**
 * <p>