Golang registered.Group函数代码示例

// checkNamespace makes sure that the scope of gvk matches ns. It
// returns an error if namespace is empty but gvk is a namespaced
// kind, or if ns is non-empty and gvk is a namespaced kind.
func checkNamespace(gvk unversioned.GroupVersionKind, ns string) error {
	group, err := registered.Group(gvk.Group)
	if err != nil {
		return err
	}
	mapping, err := group.RESTMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
	if err != nil {
		return err
	}
	switch mapping.Scope.Name() {
	case meta.RESTScopeNameRoot:
		if ns != "" {
			return fmt.Errorf("namespace specified for a non-namespaced kind %s", gvk)
		}
	case meta.RESTScopeNameNamespace:
		if ns == "" {
			// Skipping this check for Events, since
			// controllers emit events that have no namespace,
			// even though Event is a namespaced resource.
			if gvk.Kind != "Event" {
				return fmt.Errorf("no namespace specified for a namespaced kind %s", gvk)
			}
		}
	}

	return nil
}

func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
	switch version {
	case v1beta1.SchemeGroupVersion:
		return &meta.VersionInterfaces{
			ObjectConvertor:  api.Scheme,
			MetadataAccessor: accessor,
		}, nil
	default:
		g, _ := registered.Group(authorization.GroupName)
		return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
	}
}

// Check whether the kind in groupVersion is scoped at the root of the api hierarchy
func isNamespacedKind(kind, groupVersion string) (bool, error) {
	group := apiutil.GetGroup(groupVersion)
	g, err := registered.Group(group)
	if err != nil {
		return false, err
	}
	restMapping, err := g.RESTMapper.RESTMapping(unversioned.GroupKind{Group: group, Kind: kind}, apiutil.GetVersion(groupVersion))
	if err != nil {
		return false, err
	}
	scopeName := restMapping.Scope.Name()
	if scopeName == meta.RESTScopeNameNamespace {
		return true, nil
	}
	return false, nil
}

func setConfigDefaults(config *rest.Config) error {
	// if core group is not registered, return an error
	g, err := registered.Group("")
	if err != nil {
		return err
	}
	config.APIPath = "/api"
	if config.UserAgent == "" {
		config.UserAgent = rest.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	config.NegotiatedSerializer = serializer.DirectCodecFactory{CodecFactory: api.Codecs}

	return nil
}