Slf4jLog.java

// ========================================================================
// Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================

package org.eclipse.jetty.util.log;



/**
 * Slf4jLog Logger
 */
public class Slf4jLog extends AbstractLogger
{
    private final org.slf4j.Logger _logger;

    public Slf4jLog() throws Exception
    {
        this("org.eclipse.jetty.util.log");
    }

    public Slf4jLog(String name)
    {
        // This checks to make sure that an slf4j implementation is present.
        // It is needed because slf4j-api 1.6.x defaults to using NOPLogger.
        try
        {
            Class.forName("org.slf4j.impl.StaticLoggerBinder");
        }
        catch (ClassNotFoundException ex)
        {
            throw new NoClassDefFoundError("org.slf4j.impl.StaticLoggerBinder");
        }

        org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger( name );
        
        // Fix LocationAwareLogger use to indicate FQCN of this class - 
        // https://bugs.eclipse.org/bugs/show_bug.cgi?id=276670
        if (logger instanceof org.slf4j.spi.LocationAwareLogger)
        {
            _logger = new JettyAwareLogger((org.slf4j.spi.LocationAwareLogger)logger);
        }
        else
        {
            _logger = logger;
        }
    }

    public String getName()
    {
        return _logger.getName();
    }

    public void warn(String msg, Object... args)
    {
        _logger.warn(msg, args);
    }

    public void warn(Throwable thrown)
    {
        warn("", thrown);
    }

    public void warn(String msg, Throwable thrown)
    {
        _logger.warn(msg, thrown);
    }

    public void info(String msg, Object... args)
    {
        _logger.info(msg, args);
    }

    public void info(Throwable thrown)
    {
        info("", thrown);
    }

    public void info(String msg, Throwable thrown)
    {
        _logger.info(msg, thrown);
    }

    public void debug(String msg, Object... args)
    {
        _logger.debug(msg, args);
    }

    public void debug(Throwable thrown)
    {
        debug("", thrown);
    }

    public void debug(String msg, Throwable thrown)
    {
        _logger.debug(msg, thrown);
    }

    public boolean isDebugEnabled()
    {
        return _logger.isDebugEnabled();
    }

    public void setDebugEnabled(boolean enabled)
    {
        warn("setDebugEnabled not implemented",null,null);
    }

    /**
     * Create a Child Logger of this Logger.
     */
    protected Logger newLogger(String fullname)
    {
        return new Slf4jLog(fullname);
    }

    public void ignore(Throwable ignored)
    {
        if (Log.isIgnored())
        {
            warn(Log.IGNORED, ignored);
        }
    }

    @Override
    public String toString()
    {
        return _logger.toString();
    }
}