* Support external module
* Support external module
* Support external module
* Support external module
* refactor code to make it more clear
* refactor code to make it more clear
* refactor code to make it more clear
* refactor code to make it more clear
* fix according to review
* fix according to review
* fix according to review
* fix according to review
* fix according to review
* fix according to review
* fix bug
* fix bug
* fix bug
* merge
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Co-authored-by: root <root@tjdm-inf-sci-k8s-hzz2-h12ni8-0202.tjdm.baidu.com>