/**
* 验证area的level和上级区域level是否匹配
*
* @param area
* @return
*/
private void validate(Area area) {
Area upperArea = area.getUpperArea();
AreaLevel level = area.getLevel();
if (upperArea == null || level == null) return;
if (!upperArea.getLevel().isUpperLevelTo(level)) {
throw new RuntimeException("区域等级和上级区域无法匹配");
}
}
