[VOL-4442] grpc streaming connection monitoring
Change-Id: I435a03fdc0ac2b549dc4512220148cb19c16db19
diff --git a/vendor/github.com/jhump/protoreflect/internal/unrecognized.go b/vendor/github.com/jhump/protoreflect/internal/unrecognized.go
new file mode 100644
index 0000000..c903d4b
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/internal/unrecognized.go
@@ -0,0 +1,86 @@
+package internal
+
+import (
+ "reflect"
+
+ "github.com/golang/protobuf/proto"
+)
+
+var typeOfBytes = reflect.TypeOf([]byte(nil))
+
+// GetUnrecognized fetches the bytes of unrecognized fields for the given message.
+func GetUnrecognized(msg proto.Message) []byte {
+ val := reflect.Indirect(reflect.ValueOf(msg))
+ u := val.FieldByName("XXX_unrecognized")
+ if u.IsValid() && u.Type() == typeOfBytes {
+ return u.Interface().([]byte)
+ }
+
+ // Fallback to reflection for API v2 messages
+ get, _, _, ok := unrecognizedGetSetMethods(val)
+ if !ok {
+ return nil
+ }
+
+ return get.Call([]reflect.Value(nil))[0].Convert(typeOfBytes).Interface().([]byte)
+}
+
+// SetUnrecognized adds the given bytes to the unrecognized fields for the given message.
+func SetUnrecognized(msg proto.Message, data []byte) {
+ val := reflect.Indirect(reflect.ValueOf(msg))
+ u := val.FieldByName("XXX_unrecognized")
+ if u.IsValid() && u.Type() == typeOfBytes {
+ // Just store the bytes in the unrecognized field
+ ub := u.Interface().([]byte)
+ ub = append(ub, data...)
+ u.Set(reflect.ValueOf(ub))
+ return
+ }
+
+ // Fallback to reflection for API v2 messages
+ get, set, argType, ok := unrecognizedGetSetMethods(val)
+ if !ok {
+ return
+ }
+
+ existing := get.Call([]reflect.Value(nil))[0].Convert(typeOfBytes).Interface().([]byte)
+ if len(existing) > 0 {
+ data = append(existing, data...)
+ }
+ set.Call([]reflect.Value{reflect.ValueOf(data).Convert(argType)})
+}
+
+func unrecognizedGetSetMethods(val reflect.Value) (get reflect.Value, set reflect.Value, argType reflect.Type, ok bool) {
+ // val could be an APIv2 message. We use reflection to interact with
+ // this message so that we don't have a hard dependency on the new
+ // version of the protobuf package.
+ refMethod := val.MethodByName("ProtoReflect")
+ if !refMethod.IsValid() {
+ if val.CanAddr() {
+ refMethod = val.Addr().MethodByName("ProtoReflect")
+ }
+ if !refMethod.IsValid() {
+ return
+ }
+ }
+ refType := refMethod.Type()
+ if refType.NumIn() != 0 || refType.NumOut() != 1 {
+ return
+ }
+ ref := refMethod.Call([]reflect.Value(nil))
+ getMethod, setMethod := ref[0].MethodByName("GetUnknown"), ref[0].MethodByName("SetUnknown")
+ if !getMethod.IsValid() || !setMethod.IsValid() {
+ return
+ }
+ getType := getMethod.Type()
+ setType := setMethod.Type()
+ if getType.NumIn() != 0 || getType.NumOut() != 1 || setType.NumIn() != 1 || setType.NumOut() != 0 {
+ return
+ }
+ arg := setType.In(0)
+ if !arg.ConvertibleTo(typeOfBytes) || getType.Out(0) != arg {
+ return
+ }
+
+ return getMethod, setMethod, arg, true
+}