Created
January 10, 2023 21:43
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template
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| import ( | |
| "context" | |
| "github.com/opentracing/opentracing-go" | |
| "github.com/opentracing/opentracing-go/ext" | |
| clientv3 "go.etcd.io/etcd/client/v3" | |
| ) | |
| {{ $decorator := .Vars.DecoratorName }} | |
| type {{ $decorator }} struct { | |
| base {{.Interface.Type}} | |
| } | |
| // {{ .Vars.ConstructorName }}... | |
| func {{ .Vars.ConstructorName }} (base {{.Interface.Type}}) {{ $decorator }} { | |
| return {{ $decorator }} {base: base} | |
| } | |
| {{ range $method := .Interface.Methods }} | |
| // {{ $method.Name }}... | |
| func (_d {{ $decorator }}) {{ $method.Name }}( | |
| {{- /* именуем принимаемые параметры */}} | |
| {{ range $param := $method.Params -}} | |
| {{- $param.Name }} {{ $param.Type -}}, | |
| {{ end -}} | |
| ) ( | |
| {{- /* именуем возвращаемые параметры */}} | |
| {{ range $param := $method.Results -}} | |
| {{- $param.Name }} {{ $param.Type -}}, | |
| {{ end -}} | |
| ) { | |
| {{- if $method.AcceptsContext}} | |
| span, ctx := opentracing.StartSpanFromContext(ctx, "etcd/{{ $method.Name }}") | |
| defer span.Finish() | |
| ext.SpanKindRPCClient.Set(span) | |
| ext.Component.Set(span, "etcd-client") | |
| {{ range $param := $method.Params -}} | |
| {{/* https://github.com/golang/go/issues/20531 */}} | |
| {{- if eq $param.Name "ctx" }}{{ continue }}{{ end -}} | |
| {{- if and (eq $param.Name "m") (eq $param.Type "*clientv3.AlarmMember") }}{{ continue }}{{ end -}} | |
| {{/* пропускаем авторизационные методы */}} | |
| {{- if eq $method.Name "Authenticate" }}{{ continue }}{{ end -}} | |
| {{- if eq $method.Name "UserAdd" }}{{ continue }}{{ end -}} | |
| {{- if eq $method.Name "UserAddWithOptions" }}{{ continue }}{{ end -}} | |
| {{- if eq $method.Name "UserChangePassword" }}{{ continue }}{{ end -}} | |
| span.LogKV("{{ $param.Name }}", {{ $param.Name }}) | |
| {{ end }} | |
| {{- if $method.ReturnsError }} | |
| defer func() { | |
| ext.Error.Set(span, err != nil) | |
| if err != nil { | |
| span.LogKV("error", err.Error()) | |
| } | |
| }() | |
| {{ end -}} | |
| {{ end }} | |
| {{/* присваивание к именованным параметрам - хак шаблонов */}} | |
| {{/* https://stackoverflow.com/questions/50085038/detect-last-item-inside-an-array-using-range-inside-go-templates */}} | |
| {{ range $i, $result := $method.Results }}{{ if $i }},{{ end }}{{ $result.Name }}{{ end -}} | |
| = _d.base.{{ $method.Name }}( | |
| {{- range $param := $method.Params }} | |
| {{ $param.Name }}{{- if $param.Variadic -}}...{{- end -}}, | |
| {{- end }} | |
| ) | |
| return | |
| } | |
| {{ end }} |
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