LocationAwareSlf4JLogger Class — netty Architecture

Source Code

common/src/main/java/io/netty/util/internal/logging/LocationAwareSlf4JLogger.java lines 26–252

final class LocationAwareSlf4JLogger extends AbstractInternalLogger {

    // IMPORTANT: All our log methods first check if the log level is enabled before call the wrapped
    // LocationAwareLogger.log(...) method. This is done to reduce GC creation that is caused by varargs.

    static final String FQCN = LocationAwareSlf4JLogger.class.getName();
    private static final long serialVersionUID = -8292030083201538180L;

    private final transient LocationAwareLogger logger;

    LocationAwareSlf4JLogger(LocationAwareLogger logger) {
        super(logger.getName());
        this.logger = logger;
    }

    private void log(final int level, final String message) {
        logger.log(null, FQCN, level, message, null, null);
    }

    private void log(final int level, final String message, Throwable cause) {
        logger.log(null, FQCN, level, message, null, cause);
    }

    private void log(final int level, final org.slf4j.helpers.FormattingTuple tuple) {
        logger.log(null, FQCN, level, tuple.getMessage(), null, tuple.getThrowable());
    }

    @Override
    public boolean isTraceEnabled() {
        return logger.isTraceEnabled();
    }

    @Override
    public void trace(String msg) {
        if (isTraceEnabled()) {
            log(TRACE_INT, msg);
        }
    }

    @Override
    public void trace(String format, Object arg) {
        if (isTraceEnabled()) {
            log(TRACE_INT, org.slf4j.helpers.MessageFormatter.format(format, arg));
        }
    }

    @Override
    public void trace(String format, Object argA, Object argB) {
        if (isTraceEnabled()) {
            log(TRACE_INT, org.slf4j.helpers.MessageFormatter.format(format, argA, argB));
        }
    }

    @Override
    public void trace(String format, Object... argArray) {
        if (isTraceEnabled()) {
            log(TRACE_INT, org.slf4j.helpers.MessageFormatter.arrayFormat(format, argArray));
        }
    }

    @Override
    public void trace(String msg, Throwable t) {
        if (isTraceEnabled()) {
            log(TRACE_INT, msg, t);
        }
    }

    @Override
    public boolean isDebugEnabled() {
        return logger.isDebugEnabled();
    }

    @Override
    public void debug(String msg) {
        if (isDebugEnabled()) {
            log(DEBUG_INT, msg);
        }
    }

    @Override
    public void debug(String format, Object arg) {