presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/FileStorageService.java/FileStorageService/FileStorageService
class FileStorageService:    public FileStorageService(File dataDirectory)
    {
        File baseDataDir = requireNonNull(dataDirectory, "dataDirectory is null");
        this.baseStorageDir = new File(baseDataDir, "storage");
        this.baseStagingDir = new File(baseDataDir, "staging");
        this.baseQuarantineDir = new File(baseDataDir, "quarantine");
    }