func (o objects) Kind(gvk unversioned.GroupVersionKind, name string) (runtime.Object, error) {
// TODO our test clients deal in internal versions. We need to plumb that knowledge down here
// we might do this via an extra function to the scheme to allow getting internal group versions
// I'm punting for now
gvk.Version = ""
empty, _ := o.scheme.New(gvk.GroupVersion().String(), gvk.Kind)
nilValue := reflect.Zero(reflect.TypeOf(empty)).Interface().(runtime.Object)
arr, ok := o.types[gvk.Kind]
if !ok {
if strings.HasSuffix(gvk.Kind, "List") {
itemKind := gvk.Kind[:len(gvk.Kind)-4]
arr, ok := o.types[itemKind]
if !ok {
return empty, nil
}
out, err := o.scheme.New(gvk.GroupVersion().String(), gvk.Kind)
if err != nil {
return nilValue, err
}
if err := meta.SetList(out, arr); err != nil {
return nilValue, err
}
if out, err = o.scheme.Copy(out); err != nil {
return nilValue, err
}
return out, nil
}
return nilValue, errors.NewNotFound(gvk.Kind, name)
}
index := o.last[gvk.Kind]
if index >= len(arr) {
index = len(arr) - 1
}
if index < 0 {
return nilValue, errors.NewNotFound(gvk.Kind, name)
}
out, err := o.scheme.Copy(arr[index])
if err != nil {
return nilValue, err
}
o.last[gvk.Kind] = index + 1
if status, ok := out.(*unversioned.Status); ok {
if status.Details != nil {
status.Details.Kind = gvk.Kind
}
if status.Status != unversioned.StatusSuccess {
return nilValue, &errors.StatusError{ErrStatus: *status}
}
}
return out, nil
}
// DecodeIntoWithSpecifiedVersionKind compares the passed in requestGroupVersionKind
// with data.Version and data.Kind, defaulting data.Version and
// data.Kind to the specified value if they are empty, or generating an error if
// data.Version and data.Kind are not empty and differ from the specified value.
// The function then implements the functionality of DecodeInto.
// If specifiedVersion and specifiedKind are empty, the function degenerates to
// DecodeInto.
func (s *Scheme) DecodeIntoWithSpecifiedVersionKind(data []byte, obj interface{}, requestedGVK unversioned.GroupVersionKind) error {
if len(data) == 0 {
return errors.New("empty input")
}
dataVersion, dataKind, err := s.DataVersionAndKind(data)
if err != nil {
return err
}
if dataVersion == "" {
dataVersion = requestedGVK.GroupVersion().String()
}
if dataKind == "" {
dataKind = requestedGVK.Kind
}
if (len(requestedGVK.Group) > 0 || len(requestedGVK.Version) > 0) && (dataVersion != requestedGVK.GroupVersion().String()) {
return errors.New(fmt.Sprintf("The apiVersion in the data (%s) does not match the specified apiVersion(%v)", dataVersion, requestedGVK.GroupVersion()))
}
if len(requestedGVK.Kind) > 0 && (dataKind != requestedGVK.Kind) {
return errors.New(fmt.Sprintf("The kind in the data (%s) does not match the specified kind(%v)", dataKind, requestedGVK))
}
objVersion, objKind, err := s.ObjectVersionAndKind(obj)
if err != nil {
return err
}
if dataKind == "" {
// Assume objects with unset Kind fields are being unmarshalled into the
// correct type.
dataKind = objKind
}
if dataVersion == "" {
// Assume objects with unset Version fields are being unmarshalled into the
// correct type.
dataVersion = objVersion
}
external, err := s.NewObject(dataVersion, dataKind)
if err != nil {
return err
}
if err := codec.NewDecoderBytes(data, new(codec.JsonHandle)).Decode(external); err != nil {
return err
}
flags, meta := s.generateConvertMeta(dataVersion, objVersion, external)
if err := s.converter.Convert(external, obj, flags, meta); err != nil {
return err
}
// Version and Kind should be blank in memory.
return s.SetVersionAndKind("", "", obj)
}
// RESTMapping returns a struct representing the resource path and conversion interfaces a
// RESTClient should use to operate on the provided group/kind in order of versions. If a version search
// order is not provided, the search order provided to DefaultRESTMapper will be used to resolve which
// version should be used to access the named group/kind.
func (m *DefaultRESTMapper) RESTMapping(gk unversioned.GroupKind, versions ...string) (*RESTMapping, error) {
// Pick an appropriate version
var gvk *unversioned.GroupVersionKind
hadVersion := false
for _, version := range versions {
if len(version) == 0 {
continue
}
currGVK := gk.WithVersion(version)
hadVersion = true
if _, ok := m.kindToPluralResource[currGVK]; ok {
gvk = &currGVK
break
}
}
// Use the default preferred versions
if !hadVersion && (gvk == nil) {
for _, gv := range m.defaultGroupVersions {
if gv.Group != gk.Group {
continue
}
currGVK := gk.WithVersion(gv.Version)
if _, ok := m.kindToPluralResource[currGVK]; ok {
gvk = &currGVK
break
}
}
}
if gvk == nil {
return nil, fmt.Errorf("no kind named %q is registered in versions %q", gk, versions)
}
// Ensure we have a REST mapping
resource, ok := m.kindToPluralResource[*gvk]
if !ok {
found := []unversioned.GroupVersion{}
for _, gv := range m.defaultGroupVersions {
if _, ok := m.kindToPluralResource[*gvk]; ok {
found = append(found, gv)
}
}
if len(found) > 0 {
return nil, fmt.Errorf("object with kind %q exists in versions %v, not %v", gvk.Kind, found, gvk.GroupVersion().String())
}
return nil, fmt.Errorf("the provided version %q and kind %q cannot be mapped to a supported object", gvk.GroupVersion().String(), gvk.Kind)
}
// Ensure we have a REST scope
scope, ok := m.kindToScope[*gvk]
if !ok {
return nil, fmt.Errorf("the provided version %q and kind %q cannot be mapped to a supported scope", gvk.GroupVersion().String(), gvk.Kind)
}
interfaces, err := m.interfacesFunc(gvk.GroupVersion().String())
if err != nil {
return nil, fmt.Errorf("the provided version %q has no relevant versions", gvk.GroupVersion().String())
}
retVal := &RESTMapping{
Resource: resource,
GroupVersionKind: *gvk,
Scope: scope,
Codec: interfaces.Codec,
ObjectConvertor: interfaces.ObjectConvertor,
MetadataAccessor: interfaces.MetadataAccessor,
}
return retVal, nil
}
