JdkLogger Class — netty Architecture

Source Code

common/src/main/java/io/netty/util/internal/logging/JdkLogger.java lines 50–647

class JdkLogger extends AbstractInternalLogger {

    private static final long serialVersionUID = -1767272577989225979L;

    private final transient Logger logger;

    JdkLogger(Logger logger) {
        super(logger.getName());
        this.logger = logger;
    }

    /**
     * Is this logger instance enabled for the FINEST level?
     *
     * @return True if this Logger is enabled for level FINEST, false otherwise.
     */
    @Override
    public boolean isTraceEnabled() {
        return logger.isLoggable(Level.FINEST);
    }

    /**
     * Log a message object at level FINEST.
     *
     * @param msg
     *          - the message object to be logged
     */
    @Override
    public void trace(String msg) {
        if (logger.isLoggable(Level.FINEST)) {
            log(SELF, Level.FINEST, msg, null);
        }
    }

    /**
     * Log a message at level FINEST according to the specified format and
     * argument.
     *
     * <p>
     * This form avoids superfluous object creation when the logger is disabled
     * for level FINEST.
     * </p>
     *
     * @param format
     *          the format string
     * @param arg
     *          the argument
     */
    @Override
    public void trace(String format, Object arg) {
        if (logger.isLoggable(Level.FINEST)) {
            FormattingTuple ft = MessageFormatter.format(format, arg);
            log(SELF, Level.FINEST, ft.getMessage(), ft.getThrowable());
        }
    }

    /**
     * Log a message at level FINEST according to the specified format and
     * arguments.
     *
     * <p>
     * This form avoids superfluous object creation when the logger is disabled
     * for the FINEST level.
     * </p>
     *
     * @param format
     *          the format string
     * @param argA
     *          the first argument
     * @param argB
     *          the second argument
     */
    @Override
    public void trace(String format, Object argA, Object argB) {
        if (logger.isLoggable(Level.FINEST)) {
            FormattingTuple ft = MessageFormatter.format(format, argA, argB);
            log(SELF, Level.FINEST, ft.getMessage(), ft.getThrowable());
        }
    }

    /**