// KindToResource converts Kind to a resource name.
func KindToResource(kind unversioned.GroupVersionKind, mixedCase bool) (plural, singular unversioned.GroupVersionResource) {
kindName := kind.Kind
if len(kindName) == 0 {
return
}
if mixedCase {
// Legacy support for mixed case names
singular = kind.GroupVersion().WithResource(strings.ToLower(kindName[:1]) + kindName[1:])
} else {
singular = kind.GroupVersion().WithResource(strings.ToLower(kindName))
}
singularName := singular.Resource
if strings.HasSuffix(singularName, "endpoints") {
plural = singular
} else {
switch string(singularName[len(singularName)-1]) {
case "s":
plural = kind.GroupVersion().WithResource(singularName + "es")
case "y":
plural = kind.GroupVersion().WithResource(strings.TrimSuffix(singularName, "y") + "ies")
default:
plural = kind.GroupVersion().WithResource(singularName + "s")
}
}
return
}
// Recognizes returns true for any version or kind that is specified (internal
// versions are specifically excluded).
func (unstructuredJSONScheme) Recognizes(gvk unversioned.GroupVersionKind) bool {
return !gvk.GroupVersion().IsEmpty() && len(gvk.Kind) > 0
}
// 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())
if err != nil {
return nil, fmt.Errorf("the provided version %q has no relevant versions", gvk.GroupVersion().String())
}
retVal := &RESTMapping{
Resource: resource.Resource,
GroupVersionKind: *gvk,
Scope: scope,
Codec: interfaces.Codec,
ObjectConvertor: interfaces.ObjectConvertor,
MetadataAccessor: interfaces.MetadataAccessor,
}
return retVal, nil
}