Example #1
0
// GetReference returns an ObjectReference which refers to the given
// object, or an error if the object doesn't follow the conventions
// that would allow this.
func GetReference(obj runtime.Object) (*ObjectReference, error) {
	if obj == nil {
		return nil, ErrNilObject
	}
	if ref, ok := obj.(*ObjectReference); ok {
		// Don't make a reference to a reference.
		return ref, nil
	}
	meta, err := meta.Accessor(obj)
	if err != nil {
		return nil, err
	}
	_, kind, err := Scheme.ObjectVersionAndKind(obj)
	if err != nil {
		return nil, err
	}
	version := versionFromSelfLink.FindStringSubmatch(meta.SelfLink())
	if len(version) < 2 {
		return nil, fmt.Errorf("unexpected self link format: '%v'; got version '%v'", meta.SelfLink(), version)
	}
	return &ObjectReference{
		Kind:            kind,
		APIVersion:      version[1],
		Name:            meta.Name(),
		Namespace:       meta.Namespace(),
		UID:             meta.UID(),
		ResourceVersion: meta.ResourceVersion(),
	}, nil
}
Example #2
0
// GetReference returns an ObjectReference which refers to the given
// object, or an error if the object doesn't follow the conventions
// that would allow this.
// TODO: should take a meta.Interface see https://github.com/GoogleCloudPlatform/kubernetes/issues/7127
func GetReference(obj runtime.Object) (*ObjectReference, error) {
	if obj == nil {
		return nil, ErrNilObject
	}
	if ref, ok := obj.(*ObjectReference); ok {
		// Don't make a reference to a reference.
		return ref, nil
	}
	meta, err := meta.Accessor(obj)
	if err != nil {
		return nil, err
	}

	// if the object referenced is actually persisted, we can just get kind from meta
	// if we are building an object reference to something not yet persisted, we should fallback to scheme
	kind := meta.Kind()
	if kind == "" {
		_, kind, err = Scheme.ObjectVersionAndKind(obj)
		if err != nil {
			return nil, err
		}
	}

	// if the object referenced is actually persisted, we can also get version from meta
	version := meta.APIVersion()
	if version == "" {
		selfLink := meta.SelfLink()
		if selfLink == "" {
			if ForTesting_ReferencesAllowBlankSelfLinks {
				version = "testing"
			} else {
				return nil, ErrNoSelfLink
			}
		} else {
			selfLinkUrl, err := url.Parse(selfLink)
			if err != nil {
				return nil, err
			}
			// example paths: /<prefix>/<version>/*
			parts := strings.Split(selfLinkUrl.Path, "/")
			if len(parts) < 3 {
				return nil, fmt.Errorf("unexpected self link format: '%v'; got version '%v'", selfLink, version)
			}
			version = parts[2]
		}
	}

	return &ObjectReference{
		Kind:            kind,
		APIVersion:      version,
		Name:            meta.Name(),
		Namespace:       meta.Namespace(),
		UID:             meta.UID(),
		ResourceVersion: meta.ResourceVersion(),
	}, nil
}
Example #3
0
// GetReference returns an ObjectReference which refers to the given
// object, or an error if the object doesn't follow the conventions
// that would allow this.
func GetReference(obj runtime.Object) (*ObjectReference, error) {
	if obj == nil {
		return nil, ErrNilObject
	}
	if ref, ok := obj.(*ObjectReference); ok {
		// Don't make a reference to a reference.
		return ref, nil
	}
	meta, err := meta.Accessor(obj)
	if err != nil {
		return nil, err
	}
	_, kind, err := Scheme.ObjectVersionAndKind(obj)
	if err != nil {
		return nil, err
	}
	version := ""
	parsedSelfLink := versionFromSelfLink.FindStringSubmatch(meta.SelfLink())
	if len(parsedSelfLink) < 2 {
		if ForTesting_ReferencesAllowBlankSelfLinks {
			version = "testing"
		} else if meta.SelfLink() == "" {
			return nil, ErrNoSelfLink
		} else {
			return nil, fmt.Errorf("unexpected self link format: '%v'; got version '%v'", meta.SelfLink(), version)
		}
	} else {
		version = parsedSelfLink[1]
	}
	return &ObjectReference{
		Kind:            kind,
		APIVersion:      version,
		Name:            meta.Name(),
		Namespace:       meta.Namespace(),
		UID:             meta.UID(),
		ResourceVersion: meta.ResourceVersion(),
	}, nil
}