OSGiLogger.java

/**
 * (C) Copyright 2013 Jabylon (http://www.jabylon.org) and others.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.jabylon.cdo.server.logging;

import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.jabylon.cdo.server.ServerConstants;
import org.osgi.service.log.LogEntry;
import org.osgi.service.log.LogListener;
import org.osgi.service.log.LogReaderService;
import org.osgi.service.log.LogService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
import org.slf4j.helpers.BasicMarkerFactory;

/**
 * pipes OSGi log events to SLF4j.
 * Only useful for eclipse, so we have a nice logging backend (logback) 
 *
 */
@Component
public class OSGiLogger implements LogListener {
    @Reference
    private LogReaderService logReader;

    private Logger logger = LoggerFactory.getLogger(OSGiLogger.class);
    private BasicMarkerFactory factory = new BasicMarkerFactory();

    public void bindLogReader(LogReaderService service) {
    	if(!ServerConstants.IS_KARAF) {
    		this.logReader = service;
    		logReader.addLogListener(this);    		
    	}
    }

    public void unbindLogReader(LogReaderService service) {
    	if(!ServerConstants.IS_KARAF) {
    		service.removeLogListener(this);
    		logReader = null;    		
    	}
    }

    @Override
    public void logged(LogEntry entry) {

        Marker marker = null;
        if (entry.getBundle() != null)
            marker = factory.getMarker(entry.getBundle().getSymbolicName());
        switch (entry.getLevel()) {
        case LogService.LOG_DEBUG:
            logger.debug(marker, entry.getMessage(), entry.getException());
            break;
        case LogService.LOG_ERROR:
            logger.error(marker, entry.getMessage(), entry.getException());
            break;
        case LogService.LOG_INFO:
            logger.info(marker, entry.getMessage(), entry.getException());
            break;
        case LogService.LOG_WARNING:
            logger.warn(marker, entry.getMessage(), entry.getException());
            break;
        }

    }
}