import org.apache.lucene.benchmark.quality.trec.TrecJudge; //导入依赖的package包/类
public static void main(String[] args) throws Throwable {

        File topicsFile = new File("aos/lucene/benchmark/topics.txt");
        File qrelsFile = new File("aos/lucene/benchmark/qrels.txt");
        Directory dir = FSDirectory.open(new File("indexes/MeetLucene"));
        IndexReader reader = DirectoryReader.open(dir);
        IndexSearcher searcher = new IndexSearcher(reader);

        String docNameField = "filename";

        PrintWriter LOGGER = new PrintWriter(System.out, true);

        TrecTopicsReader qReader = new TrecTopicsReader();
        QualityQuery qqs[] = qReader.readQueries(new BufferedReader(new FileReader(topicsFile)));

        Judge judge = new TrecJudge(new BufferedReader(new FileReader(qrelsFile)));

        judge.validateData(qqs, LOGGER);

        QualityQueryParser qqParser = new SimpleQQParser("title", "contents");

        QualityBenchmark qrun = new QualityBenchmark(qqs, qqParser, searcher, docNameField);
        SubmissionReport submitLog = null;
        QualityStats stats[] = qrun.execute(judge, submitLog, LOGGER);

        QualityStats avg = QualityStats.average(stats);
        avg.log("SUMMARY", 2, LOGGER, "  ");

        dir.close();

    }