org.jgroups.logging.Slf4jLogImpl Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.logging;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.function.Function;

/**
 * Logger that delivers messages to a SLF4J logger
 *
 * @author Konstantin Gusarov
 * @since 4.0.0
 */
public class Slf4jLogImpl implements Log {
    private static final Map, String> LEVELS = new LinkedHashMap<>();
    private static final Locale LOCALE = Locale.getDefault();

    static {
        LEVELS.put(Logger::isErrorEnabled, "ERROR");
        LEVELS.put(Logger::isWarnEnabled, "WARN");
        LEVELS.put(Logger::isInfoEnabled, "INFO");
        LEVELS.put(Logger::isDebugEnabled, "DEBUG");
        LEVELS.put(Logger::isTraceEnabled, "TRACE");
    }

    private final Logger logger;
    private final Locale locale;

    public Slf4jLogImpl(final Class clazz) {
        this(LOCALE, LoggerFactory.getLogger(clazz));
    }

    public Slf4jLogImpl(final String category) {
        this(LOCALE, LoggerFactory.getLogger(category));
    }

    public Slf4jLogImpl(final Locale locale, final Logger logger) {
        this.logger = logger;
        this.locale = locale;
    }

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

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

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

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

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

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

    @Override
    public void fatal(final String msg) {
        logger.error(msg);
    }

    @Override
    public void fatal(final String msg, final Object... args) {
        final String formatted = String.format(locale, msg, args);
        logger.error(formatted);
    }

    @Override
    public void fatal(final String msg, final Throwable throwable) {
        logger.error(msg, throwable);
    }

    @Override
    public void error(final String msg) {
        logger.error(msg);
    }

    @Override
    public void error(final String format, final Object... args) {
        final String formatted = String.format(locale, format, args);
        logger.error(formatted);
    }

    @Override
    public void error(final String msg, final Throwable throwable) {
        logger.error(msg, throwable);
    }

    @Override
    public void warn(final String msg) {
        logger.warn(msg);
    }

    @Override
    public void warn(final String msg, final Object... args) {
        final String formatted = String.format(locale, msg, args);
        logger.warn(formatted);
    }

    @Override
    public void warn(final String msg, final Throwable throwable) {
        logger.warn(msg, throwable);
    }

    @Override
    public void info(final String msg) {
        logger.info(msg);
    }

    @Override
    public void info(final String msg, final Object... args) {
        final String formatted = String.format(locale, msg, args);
        logger.info(formatted);
    }

    @Override
    public void debug(final String msg) {
        logger.debug(msg);
    }

    @Override
    public void debug(final String msg, final Object... args) {
        final String formatted = String.format(locale, msg, args);
        logger.debug(formatted);
    }

    @Override
    public void debug(final String msg, final Throwable throwable) {
        logger.debug(msg, throwable);
    }

    @Override
    public void trace(final Object msg) {
        logger.trace("{}", msg);
    }

    @Override
    public void trace(final String msg) {
        logger.trace(msg);
    }

    @Override
    public void trace(final String msg, final Object... args) {
        final String formatted = String.format(locale, msg, args);
        logger.trace(formatted);
    }

    @Override
    public void trace(final String msg, final Throwable throwable) {
        logger.trace(msg, throwable);
    }

    @Override
    public void setLevel(final String level) {
        throw new UnsupportedOperationException();
    }

    @Override
    public String getLevel() {
        String result = "NONE";

        for (final Map.Entry, String> entry : LEVELS.entrySet()) {
            if (entry.getKey().apply(logger)) {
                result = entry.getValue();
            } else {
                break;
            }
        }

        return result;
    }
}