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helloworld_impl.go
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/
helloworld_impl.go
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package helloworldv1
import (
"context"
"errors"
"time"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// FooServer ...
type FooServer struct {
UnimplementedGreeterServiceServer
hook func(context.Context)
}
// SetHook ...
func (s *FooServer) SetHook(f func(context.Context)) {
s.hook = f
}
// ErrFoo ...
var ErrFoo = errors.New("error foo")
// StatusFoo ...
var StatusFoo = status.Errorf(codes.DataLoss, ErrFoo.Error())
// SayHello ...
func (s *FooServer) SayHello(ctx context.Context, in *SayHelloRequest) (out *SayHelloResponse, err error) {
var fm = new(SayHelloRequest_FieldMask)
// sleep to test cost time
time.Sleep(20 * time.Millisecond)
switch in.Name {
case "traceHook":
s.hook(ctx)
err = StatusFoo
case "needErr":
err = StatusFoo
case "slow":
time.Sleep(500 * time.Millisecond)
out = &SayHelloResponse{Data: &SayHelloResponse_Data{Name: in.Name}}
case "needPanic":
panic("go dead!")
default:
out = &SayHelloResponse{Data: &SayHelloResponse_Data{Name: in.Name}}
}
switch in.GetType() {
case Type_TYPE_UNSPECIFIED:
return
case Type_TYPE_PRUNE:
fm = in.FieldMaskPrune()
case Type_TYPE_FILTER:
fm = in.FieldMaskFilter()
default:
return
}
out = &SayHelloResponse{
Error: 0,
Msg: "请求正常",
Data: &SayHelloResponse_Data{
Name: "",
AgeNumber: 18,
Sex: Sex_SEX_MALE,
Metadata: map[string]string{"Bar": "bar"},
},
}
if fm.MaskedInName() {
out.Data.Name = in.GetName()
}
_ = fm.Mask(out)
return
}