/
sender.go
48 lines (36 loc) · 909 Bytes
/
sender.go
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package stream
import (
"fmt"
"reflect"
xreflect "go.nhat.io/grpcmock/reflect"
)
// Sender is an interface wrapper around grpc.ClientStream and grpc.ServerStream.
type Sender interface {
SendMsg(m interface{}) error
}
// SendCloser is an interface wrapper around grpc.ClientStream.
type SendCloser interface {
Sender
CloseSend() error
}
// SendAll sends all the messages from a given input.
func SendAll(s Sender, in interface{}) error {
if !xreflect.IsSlice(in) {
return fmt.Errorf("%w: %T", xreflect.ErrIsNotSlice, in)
}
valueOf := reflect.ValueOf(in)
for i := 0; i < valueOf.Len(); i++ {
msg := xreflect.NewValue(valueOf.Index(i).Interface())
if err := s.SendMsg(msg); err != nil {
return err
}
}
return nil
}
// CloseSend closes the send direction of the stream.
func CloseSend(s Sender) error {
if s, ok := s.(SendCloser); ok {
return s.CloseSend()
}
return nil
}