split `ExtAcpKey` to `ExtAmzOwnerKey` and `ExtAmzAclKey` to avoid unnecessary `json.Unmarshal()` call Signed-off-by: changlin.shi <changlin.shi@ly.com> Signed-off-by: changlin.shi <changlin.shi@ly.com>
see https://blog.aqwari.net/xml-schema-go/ 1. go get aqwari.net/xml/cmd/xsdgen 2. xsdgen -o s3api_xsd_generated.go -pkg s3api AmazonS3.xsd