Ejemplo n.º 1
0
// unmarshalToObject is the common code between decode in the raw and normal serializer.
func unmarshalToObject(typer runtime.ObjectTyper, creater runtime.ObjectCreater, actual *unversioned.GroupVersionKind, into runtime.Object, data []byte) (runtime.Object, *unversioned.GroupVersionKind, error) {
	// use the target if necessary
	obj, err := runtime.UseOrCreateObject(typer, creater, *actual, into)
	if err != nil {
		return nil, actual, err
	}

	pb, ok := obj.(proto.Message)
	if !ok {
		return nil, actual, errNotMarshalable{reflect.TypeOf(obj)}
	}
	if err := proto.Unmarshal(data, pb); err != nil {
		return nil, actual, err
	}
	return obj, actual, nil
}
Ejemplo n.º 2
0
// Decode attempts to convert the provided data into YAML or JSON, extract the stored schema kind, apply the provided default gvk, and then
// load that data into an object matching the desired schema kind or the provided into. If into is *runtime.Unknown, the raw data will be
// extracted and no decoding will be performed. If into is not registered with the typer, then the object will be straight decoded using
// normal JSON/YAML unmarshalling. If into is provided and the original data is not fully qualified with kind/version/group, the type of
// the into will be used to alter the returned gvk. On success or most errors, the method will return the calculated schema kind.
func (s *Serializer) Decode(originalData []byte, gvk *schema.GroupVersionKind, into runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
	if versioned, ok := into.(*runtime.VersionedObjects); ok {
		into = versioned.Last()
		obj, actual, err := s.Decode(originalData, gvk, into)
		if err != nil {
			return nil, actual, err
		}
		versioned.Objects = []runtime.Object{obj}
		return versioned, actual, nil
	}

	data := originalData
	if s.yaml {
		altered, err := yaml.YAMLToJSON(data)
		if err != nil {
			return nil, nil, err
		}
		data = altered
	}

	actual, err := s.meta.Interpret(data)
	if err != nil {
		return nil, nil, err
	}

	if gvk != nil {
		// apply kind and version defaulting from provided default
		if len(actual.Kind) == 0 {
			actual.Kind = gvk.Kind
		}
		if len(actual.Version) == 0 && len(actual.Group) == 0 {
			actual.Group = gvk.Group
			actual.Version = gvk.Version
		}
		if len(actual.Version) == 0 && actual.Group == gvk.Group {
			actual.Version = gvk.Version
		}
	}

	if unk, ok := into.(*runtime.Unknown); ok && unk != nil {
		unk.Raw = originalData
		unk.ContentType = runtime.ContentTypeJSON
		unk.GetObjectKind().SetGroupVersionKind(*actual)
		return unk, actual, nil
	}

	if into != nil {
		types, _, err := s.typer.ObjectKinds(into)
		switch {
		case runtime.IsNotRegisteredError(err):
			if err := codec.NewDecoderBytes(data, new(codec.JsonHandle)).Decode(into); err != nil {
				return nil, actual, err
			}
			return into, actual, nil
		case err != nil:
			return nil, actual, err
		default:
			typed := types[0]
			if len(actual.Kind) == 0 {
				actual.Kind = typed.Kind
			}
			if len(actual.Version) == 0 && len(actual.Group) == 0 {
				actual.Group = typed.Group
				actual.Version = typed.Version
			}
			if len(actual.Version) == 0 && actual.Group == typed.Group {
				actual.Version = typed.Version
			}
		}
	}

	if len(actual.Kind) == 0 {
		return nil, actual, runtime.NewMissingKindErr(string(originalData))
	}
	if len(actual.Version) == 0 {
		return nil, actual, runtime.NewMissingVersionErr(string(originalData))
	}

	// use the target if necessary
	obj, err := runtime.UseOrCreateObject(s.typer, s.creater, *actual, into)
	if err != nil {
		return nil, actual, err
	}

	if err := codec.NewDecoderBytes(data, new(codec.JsonHandle)).Decode(obj); err != nil {
		return nil, actual, err
	}
	return obj, actual, nil
}