micro/server/grpc/handler.go

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2019-06-03 20:44:43 +03:00
package grpc
import (
"reflect"
"github.com/micro/go-micro/registry"
"github.com/micro/go-micro/server"
)
type rpcHandler struct {
name string
handler interface{}
endpoints []*registry.Endpoint
opts server.HandlerOptions
}
func newRpcHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
options := server.HandlerOptions{
Metadata: make(map[string]map[string]string),
}
for _, o := range opts {
o(&options)
}
typ := reflect.TypeOf(handler)
hdlr := reflect.ValueOf(handler)
name := reflect.Indirect(hdlr).Type().Name()
var endpoints []*registry.Endpoint
for m := 0; m < typ.NumMethod(); m++ {
if e := extractEndpoint(typ.Method(m)); e != nil {
e.Name = name + "." + e.Name
for k, v := range options.Metadata[e.Name] {
e.Metadata[k] = v
}
endpoints = append(endpoints, e)
}
}
return &rpcHandler{
name: name,
handler: handler,
endpoints: endpoints,
opts: options,
}
}
func (r *rpcHandler) Name() string {
return r.name
}
func (r *rpcHandler) Handler() interface{} {
return r.handler
}
func (r *rpcHandler) Endpoints() []*registry.Endpoint {
return r.endpoints
}
func (r *rpcHandler) Options() server.HandlerOptions {
return r.opts
}