"dgp.filter.http.accesslog" filter can't be used by XDS

[Zvoid]

My config:
{
"name": "dgp.filter.httpconnectionmanager",
"struct": {
"http_filters": [
{
"name": "dgp.filter.http.directdubboproxy"
},
{
"name": "dgp.filter.http.accesslog",
"config": {
"outPutPath": "C:\aa.log"
}
}
]
}
}
However, "conf" is nil in the access_log filter.
file: access_log.go.
func (factory *FilterFactory) PrepareFilterChain(ctx *http.HttpContext, chain filter.FilterChain) error {
f := &Filter{alw: factory.alw} // Filter.conf is nil
chain.AppendDecodeFilters(f)
chain.AppendEncodeFilters(f)
return nil
}

I modified it. it work.

func (factory *FilterFactory) PrepareFilterChain(ctx *http.HttpContext, chain filter.FilterChain) error {
f := &Filter{
alw: factory.alw,
conf: factory.conf,
}
chain.AppendDecodeFilters(f)
chain.AppendEncodeFilters(f)
return nil
}