Golang runtime.NewMissingVersionErr函數代碼示例

// 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 *unversioned.GroupVersionKind, into runtime.Object) (runtime.Object, *unversioned.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 {
		typed, _, err := s.typer.ObjectKind(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:
			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
}

func (t *thirdPartyResourceDataCodec) Decode(data []byte, gvk *unversioned.GroupVersionKind, into runtime.Object) (runtime.Object, *unversioned.GroupVersionKind, error) {
	if into == nil {
		obj, err := t.populate(data)
		if err != nil {
			return nil, nil, err
		}
		return obj, gvk, nil
	}
	thirdParty, ok := into.(*extensions.ThirdPartyResourceData)
	if !ok {
		return nil, nil, fmt.Errorf("unexpected object: %#v", into)
	}

	var dataObj interface{}
	if err := json.Unmarshal(data, &dataObj); err != nil {
		return nil, nil, err
	}
	mapObj, ok := dataObj.(map[string]interface{})
	if !ok {

		return nil, nil, fmt.Errorf("unexpected object: %#v", dataObj)
	}
	/*if gvk.Kind != "ThirdPartyResourceData" {
		return nil, nil, fmt.Errorf("unexpected kind: %s", gvk.Kind)
	}*/
	actual := &unversioned.GroupVersionKind{}
	if kindObj, found := mapObj["kind"]; !found {
		if gvk == nil {
			return nil, nil, runtime.NewMissingKindErr(string(data))
		}
		mapObj["kind"] = gvk.Kind
		actual.Kind = gvk.Kind
	} else {
		kindStr, ok := kindObj.(string)
		if !ok {
			return nil, nil, fmt.Errorf("unexpected object for 'kind': %v", kindObj)
		}
		if kindStr != t.kind {
			return nil, nil, fmt.Errorf("kind doesn't match, expecting: %s, got %s", gvk.Kind, kindStr)
		}
		actual.Kind = t.kind
	}
	if versionObj, found := mapObj["apiVersion"]; !found {
		if gvk == nil {
			return nil, nil, runtime.NewMissingVersionErr(string(data))
		}
		mapObj["apiVersion"] = gvk.GroupVersion().String()
		actual.Group, actual.Version = gvk.Group, gvk.Version
	} else {
		versionStr, ok := versionObj.(string)
		if !ok {
			return nil, nil, fmt.Errorf("unexpected object for 'apiVersion': %v", versionObj)
		}
		if gvk != nil && versionStr != gvk.GroupVersion().String() {
			return nil, nil, fmt.Errorf("version doesn't match, expecting: %v, got %s", gvk.GroupVersion(), versionStr)
		}
		gv, err := unversioned.ParseGroupVersion(versionStr)
		if err != nil {
			return nil, nil, err
		}
		actual.Group, actual.Version = gv.Group, gv.Version
	}

	mapObj, err := parseObject(data)
	if err != nil {
		return nil, actual, err
	}
	if err := t.populateResource(thirdParty, mapObj, data); err != nil {
		return nil, actual, err
	}
	return thirdParty, actual, nil
}

// Decode attempts to convert the provided data into a protobuf message, 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 protobuf unmarshalling (the MarshalTo interface). 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 *RawSerializer) Decode(originalData []byte, gvk *unversioned.GroupVersionKind, into runtime.Object) (runtime.Object, *unversioned.GroupVersionKind, error) {
	if into == nil {
		return nil, nil, fmt.Errorf("this serializer requires an object to decode into: %#v", s)
	}

	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
		}
		if into != nil && into != obj {
			versioned.Objects = []runtime.Object{obj, into}
		} else {
			versioned.Objects = []runtime.Object{obj}
		}
		return versioned, actual, err
	}

	if len(originalData) == 0 {
		// TODO: treat like decoding {} from JSON with defaulting
		return nil, nil, fmt.Errorf("empty data")
	}
	data := originalData

	actual := &unversioned.GroupVersionKind{}
	copyKindDefaults(actual, gvk)

	if intoUnknown, ok := into.(*runtime.Unknown); ok && intoUnknown != nil {
		intoUnknown.Raw = data
		intoUnknown.ContentEncoding = ""
		intoUnknown.ContentType = s.contentType
		intoUnknown.SetGroupVersionKind(actual)
		return intoUnknown, actual, nil
	}

	typed, _, err := s.typer.ObjectKind(into)
	switch {
	case runtime.IsNotRegisteredError(err):
		pb, ok := into.(proto.Message)
		if !ok {
			return nil, actual, errNotMarshalable{reflect.TypeOf(into)}
		}
		if err := proto.Unmarshal(data, pb); err != nil {
			return nil, actual, err
		}
		return into, actual, nil
	case err != nil:
		return nil, actual, err
	default:
		copyKindDefaults(actual, typed)
		// if the result of defaulting did not set a version or group, ensure that at least group is set
		// (copyKindDefaults will not assign Group if version is already set). This guarantees that the group
		// of into is set if there is no better information from the caller or object.
		if len(actual.Version) == 0 && len(actual.Group) == 0 {
			actual.Group = typed.Group
		}
	}

	if len(actual.Kind) == 0 {
		return nil, actual, runtime.NewMissingKindErr("<protobuf encoded body - must provide default type>")
	}
	if len(actual.Version) == 0 {
		return nil, actual, runtime.NewMissingVersionErr("<protobuf encoded body - must provide default type>")
	}

	return unmarshalToObject(s.typer, s.creater, actual, into, data)
}