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62 lines
1.3 KiB
62 lines
1.3 KiB
package main
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import (
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"bytes"
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"strings"
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"text/template"
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)
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var httpTemplate = `
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type {{.ServiceType}}Handler interface {
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{{range .MethodSets}}
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{{.Name}}(context.Context, *{{.Request}}) (*{{.Reply}}, error)
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{{end}}
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}
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func New{{.ServiceType}}Handler(srv {{.ServiceType}}Handler, opts ...http1.HandleOption) http.Handler {
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r := mux.NewRouter()
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{{range .Methods}}
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r.Handle("{{.Path}}", http1.NewHandler(srv.{{.Name}}, opts...)).Methods("{{.Method}}")
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{{end}}
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return r
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}
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`
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type serviceDesc struct {
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ServiceType string // Greeter
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ServiceName string // helloworld.Greeter
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Metadata string // api/helloworld/helloworld.proto
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Methods []*methodDesc
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MethodSets map[string]*methodDesc
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}
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type methodDesc struct {
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// method
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Name string
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Num int
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Vars []string
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Forms []string
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Request string
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Reply string
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// http_rule
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Path string
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Method string
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Body string
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ResponseBody string
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}
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func (s *serviceDesc) execute() string {
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s.MethodSets = make(map[string]*methodDesc)
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for _, m := range s.Methods {
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s.MethodSets[m.Name] = m
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}
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buf := new(bytes.Buffer)
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tmpl, err := template.New("http").Parse(strings.TrimSpace(httpTemplate))
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if err != nil {
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panic(err)
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}
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if err := tmpl.Execute(buf, s); err != nil {
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panic(err)
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}
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return string(buf.Bytes())
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}
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