// 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
}
// 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
}
// 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
}