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773784112f
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Move unstructured conversion into pkg/runtime Scheme conversion should support unstructured conversion natively to allow going from unstructured to typed and back. It is not a higher level responsibility to do that conversion because the scheme is the only one who knows what types it supports. @liggitt @kubernetes/sig-cli-api-reviews I am going to make Scheme support unstructured in ConvertToVersion and Convert, which means resource.Builder and the CLI can get simpler for all existing use cases where versioned and unstructured need to coexist. Kubernetes-commit: a67abac7654cc3e05618d41191d71730cf9565ac
78 lines
2.8 KiB
Go
78 lines
2.8 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package discovery
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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// UnstructuredObjectTyper provides a runtime.ObjectTyper implmentation for
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// runtime.Unstructured object based on discovery information.
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type UnstructuredObjectTyper struct {
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registered map[schema.GroupVersionKind]bool
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}
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// NewUnstructuredObjectTyper returns a runtime.ObjectTyper for
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// unstructred objects based on discovery information.
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func NewUnstructuredObjectTyper(groupResources []*APIGroupResources) *UnstructuredObjectTyper {
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dot := &UnstructuredObjectTyper{registered: make(map[schema.GroupVersionKind]bool)}
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for _, group := range groupResources {
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for _, discoveryVersion := range group.Group.Versions {
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resources, ok := group.VersionedResources[discoveryVersion.Version]
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if !ok {
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continue
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}
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gv := schema.GroupVersion{Group: group.Group.Name, Version: discoveryVersion.Version}
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for _, resource := range resources {
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dot.registered[gv.WithKind(resource.Kind)] = true
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}
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}
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}
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return dot
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}
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// ObjectKinds returns a slice of one element with the group,version,kind of the
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// provided object, or an error if the object is not runtime.Unstructured or
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// has no group,version,kind information. unversionedType will always be false
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// because runtime.Unstructured object should always have group,version,kind
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// information set.
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func (d *UnstructuredObjectTyper) ObjectKinds(obj runtime.Object) (gvks []schema.GroupVersionKind, unversionedType bool, err error) {
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if _, ok := obj.(runtime.Unstructured); !ok {
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return nil, false, fmt.Errorf("type %T is invalid for dynamic object typer", obj)
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}
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gvk := obj.GetObjectKind().GroupVersionKind()
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if len(gvk.Kind) == 0 {
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return nil, false, runtime.NewMissingKindErr("unstructured object has no kind")
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}
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if len(gvk.Version) == 0 {
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return nil, false, runtime.NewMissingVersionErr("unstructured object has no version")
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}
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return []schema.GroupVersionKind{gvk}, false, nil
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}
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// Recognizes returns true if the provided group,version,kind was in the
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// discovery information.
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func (d *UnstructuredObjectTyper) Recognizes(gvk schema.GroupVersionKind) bool {
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return d.registered[gvk]
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}
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var _ runtime.ObjectTyper = &UnstructuredObjectTyper{}
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