import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.rescore.RescorerBuilder;

import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilder;

public class KeyMatchHelperTest extends UnitFessTestCase {

    private KeyMatchHelper keyMatchHelper;

    @Override

        final List<FunctionScoreQueryBuilder.FilterFunctionBuilder> flist = new ArrayList<>();

        if (isSingleWordQuery(query) && !isHiraganaQuery(query)) {
            flist.add(new FunctionScoreQueryBuilder.FilterFunctionBuilder(QueryBuilders.prefixQuery(FieldNames.TEXT, query),
                    ScoreFunctionBuilders.weightFactorFunction(prefixMatchWeight)));

     */
    public void addFunctionScore(final Consumer<List<FilterFunctionBuilder>> functionScoreQuery) {
        final List<FilterFunctionBuilder> list = new ArrayList<>();
        functionScoreQuery.accept(list);
        queryBuilder = QueryBuilders.functionScoreQuery(queryBuilder, list.toArray(new FilterFunctionBuilder[list.size()]));
    }

    /**

                    QueryBuilders.functionScoreQuery(QueryBuilders.matchAllQuery(),
                            new FunctionScoreQueryBuilder.FilterFunctionBuilder[] { new FunctionScoreQueryBuilder.FilterFunctionBuilder(
                                    new RandomScoreFunctionBuilder().seed(sessionId.hashCode())) }),
                    0, pollingFetchSize, SortBuilders.scoreSort().order(SortOrder.DESC));

import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;

import jakarta.annotation.PostConstruct;

/**

import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.sort.SortBuilder;
import org.opensearch.search.sort.SortBuilders;

            reader.setLimitOfDocumentSize(fessConfig.getSuggestUpdateContentsLimitDocSizeAsInteger());

            final List<FunctionScoreQueryBuilder.FilterFunctionBuilder> flist = new ArrayList<>();
            flist.add(new FunctionScoreQueryBuilder.FilterFunctionBuilder(ScoreFunctionBuilders.randomFunction()
                    .seed(ComponentUtil.getSystemHelper().getCurrentTimeAsLong())