RollingResourceAppender.java 文件源码

/**
     This method differentiates RollingFileAppender from its super
     class.

     @since 0.9.0
  */
  @Override
protected void subAppend(LoggingEvent event) {
    super.subAppend(event);
    if(res != null && qw != null) {
        long size = ((CountingQuietWriter) qw).getCount();
        if (size >= maxFileSize && size >= nextRollover) {
            rollOver();
        }
    }
   }