org.springside.examples.showcase.log.AppenderUtils.java Source code

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Here is the source code for org.springside.examples.showcase.log.AppenderUtils.java

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/**
 * Copyright (c) 2005-2009 springside.org.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * 
 * $Id: AppenderUtils.java 1066 2010-04-30 16:25:19Z calvinxiu $
 */
package org.springside.examples.showcase.log;

import java.util.Date;
import java.util.Map;

import org.apache.log4j.PatternLayout;
import org.apache.log4j.spi.LoggingEvent;

import com.google.common.collect.Maps;

/**
 * Log4j Appender, ?Logging EventMap.
 * 
 * @author calvin
 */
public class AppenderUtils {

    public static final String MESSAGE = "message";
    public static final String LEVEL = "level";
    public static final String LOG_TIME = "log_time";
    public static final String LOGGER_NAME = "loggerName";
    public static final String THREAD_NAME = "threadName";

    public static final PatternLayout DEFAULT_PATTERN_LAYOUT = new PatternLayout("%d [%t] %-5p %c - %m");

    /**
     * layoutPattern?.
     */
    public static String convertEventToString(LoggingEvent event) {
        return DEFAULT_PATTERN_LAYOUT.format(event);
    }

    /**
     * ??layoutPattern?.
     */
    public static String convertEventToString(LoggingEvent event, String layoutPattern) {
        return new PatternLayout(layoutPattern).format(event);
    }

    /**
     * ?Map, MapKey???.
     */
    public static Map<String, Object> convertEventToMap(LoggingEvent event) {
        Map<String, Object> map = Maps.newHashMap();
        map.put(MESSAGE, event.getMessage());
        map.put(LEVEL, event.getLevel().toString());
        map.put(LOGGER_NAME, event.getLoggerName());
        map.put(THREAD_NAME, event.getThreadName());
        map.put(LOG_TIME, new Date(event.getTimeStamp()));
        return map;
    }
}