@Override
    public void setRootLoggerLevel(Level level) {
        ch.qos.logback.classic.Level value =
                switch (level) {
                    case DEBUG -> ch.qos.logback.classic.Level.DEBUG;
                    case INFO -> ch.qos.logback.classic.Level.INFO;
                    default -> ch.qos.logback.classic.Level.ERROR;
                };

         * Enumeration data object corresponding to the level
         */
        public NdrObject e;

        @Override
        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_long(this.level);
            final int _descr = this.level;
            _dst.enc_ndr_long(_descr);
            _dst.enc_ndr_referent(this.e, 1);

            if (this.e != null) {

		</RollingFile>
	</Appenders>

	<Loggers>
		<Logger name="org.codelibs" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>
		<Logger name="org.dbflute" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>
		<Logger name="org.lastaflute" additivity="false" level="${log.level}">
			<AppenderRef ref="AppFile" />
		</Logger>

                }
            }
            return null;
        };
    }

    public static int toMavenExecutionRequestLoggingLevel(Slf4jConfiguration.Level level) {
        requireNonNull(level, "level");
        return switch (level) {
            case DEBUG -> MavenExecutionRequest.LOGGING_LEVEL_DEBUG;
            case INFO -> MavenExecutionRequest.LOGGING_LEVEL_INFO;

    public Slf4jLogger(org.slf4j.Logger logger) {
        this.logger = requireNonNull(logger, "logger");
    }

    @Override
    public void log(Level level, String message, Throwable error) {
        requireNonNull(level, "level");
        requireNonNull(message, "message");
        switch (level) {
            case ERROR -> logger.error(message, error);
            case WARN -> logger.warn(message, error);

			Key:   "trace",
			Value: slog.GroupValue(fields...),
		})
	}
}

func (l *slogLogger) log(ctx context.Context, level slog.Level, msg string, args ...any) {
	if ctx == nil {
		ctx = context.Background()
	}

	if !l.Logger.Enabled(ctx, level) {
		return
	}

	r := slog.NewRecord(time.Now(), level, msg, utils.CallerFrame().PC)
	r.Add(args...)
	_ = l.Logger.Handler().Handle(ctx, r)
}

    private final AtomicReference<List<Entry>> entries = new AtomicReference<>(new CopyOnWriteArrayList<>());

    @Override
    public void log(Level level, String message, Throwable error) {
        requireNonNull(level, "level");
        requireNonNull(message, "message");
        entries.get().add(new Entry(level, message, error));
    }

    @Override
    public List<Entry> drain() {
        return entries.getAndSet(new CopyOnWriteArrayList<>());

    private static final Logger LOGGER = LoggerFactory.getLogger(MavenSimpleConfiguration.class);

    @Override
    public void setRootLoggerLevel(Level level) {
        String value =
                switch (level) {
                    case DEBUG -> "debug";
                    case INFO -> "info";
                    case ERROR -> "error";
                };

  fun enableHttp2() = enable(Http2::class)

  fun enableTaskRunner() = enable(TaskRunner::class)

  fun logHandler() =
    ConsoleHandler().apply {
      level = Level.FINE
      formatter =
        object : SimpleFormatter() {
          override fun format(record: LogRecord) = String.format("[%1\$tF %1\$tT] %2\$s %n", record.millis, record.message)
        }
    }

  fun enable(

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">

	<Properties>
		<Property name="domain.name" value="${sys:fess.log.name:-fess}" />
		<Property name="log.level" value="${sys:fess.log.level:-info}" />
		<Property name="root.log.level" value="${sys:fess.log.level:-warn}" />
		<Property name="log.pattern" value="%d [%t] %-5p %msg%n" />
		<Property name="log.file.basedir" value="${sys:fess.log.path:-target/logs}" />