Log4jFileAppender.java 文件源码

/**
 * Called when a new log attempt is made, either due to server restart or rollover. The filename
 * is modified to identify the logging node in getNewFileName.
 */
@Override
public void activateOptions() {
  if (fileName != null) {
    if (!fileName.equals(mCurrentFileName)) {
      mOriginalFileName = fileName;
    } else {
      fileName = mOriginalFileName;
    }
    try {
      fileName = getNewLogFileName(fileName);
      setFile(fileName, fileAppend, bufferedIO, bufferSize);
    } catch (Exception e) {
      errorHandler.error("Error while activating log options", e, ErrorCode.FILE_OPEN_FAILURE);
    }
  }
}