    001/**
    002 * Copyright (c) 2004-2011 QOS.ch
    003 * All rights reserved.
    004 *
    005 * Permission is hereby granted, free  of charge, to any person obtaining
    006 * a  copy  of this  software  and  associated  documentation files  (the
    007 * "Software"), to  deal in  the Software without  restriction, including
    008 * without limitation  the rights to  use, copy, modify,  merge, publish,
    009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    010 * permit persons to whom the Software  is furnished to do so, subject to
    011 * the following conditions:
    012 *
    013 * The  above  copyright  notice  and  this permission  notice  shall  be
    014 * included in all copies or substantial portions of the Software.
    015 *
    016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    023 *
    024 */
    025package org.slf4j.ext;
    026
    027import org.slf4j.LoggerFactory;
    028import org.slf4j.Marker;
    029import org.slf4j.MarkerFactory;
    030import org.slf4j.spi.LocationAwareLogger;
    031
    032/**
    033 * Simple Logger used to log events. All events are directed to a logger named "EventLogger"
    034 * with a level of INFO and with an Event marker.
    035 *
    036 * @author Ralph Goers
    037 */
    038public class EventLogger {
    039
    040    private static final String FQCN = EventLogger.class.getName();
    041
    042    static Marker EVENT_MARKER = MarkerFactory.getMarker("EVENT");
    043
    044    private static LoggerWrapper eventLogger = new LoggerWrapper(LoggerFactory.getLogger("EventLogger"), FQCN);
    045
    046    /**
    047     * There can only be a single EventLogger.
    048     */
    049    private EventLogger() {
    050    }
    051
    052    /**
    053     * Logs the event.
    054     *
    055     * @param data The EventData.
    056     */
    057    public static void logEvent(EventData data) {
    058        if (eventLogger.instanceofLAL) {
    059            ((LocationAwareLogger) eventLogger.logger).log(EVENT_MARKER, FQCN, LocationAwareLogger.INFO_INT, data.toXML(), new Object[] { data }, null);
    060        } else {
    061            eventLogger.logger.info(EVENT_MARKER, data.toXML(), data);
    062        }
    063    }
    064}