JDKLogger.java 文件源码

/**
 * This function initializes and returns the logger.
 * 
 * @return  The logger
 */
protected static final Logger initializeLogger()
{
    //get logger
    Logger logger=Logger.getLogger(FaxClient.class.getName());

    //enable all log events (fax4j logger filters out uneeded log events)
    logger.setLevel(Level.ALL);
    logger.setFilter(null);

    //enable to pass log events to parent loggers
    logger.setUseParentHandlers(true);

    //create handler
    Formatter formatter=new SimpleFormatter();
    Handler handler=new StreamHandler(System.out,formatter);

    //set filtering
    handler.setLevel(logger.getLevel());
    handler.setFilter(logger.getFilter());

    //add handler
    logger.addHandler(handler);

    return logger;
}