// 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
}
// 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
}