95 lines
3.3 KiB
Go
95 lines
3.3 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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// ObjectKind returns the group,version,kind of the provided object, or an error
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// if the object in not runtime.Unstructured or has no group,version,kind
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// information.
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func (d *UnstructuredObjectTyper) ObjectKind(obj runtime.Object) (schema.GroupVersionKind, error) {
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if _, ok := obj.(runtime.Unstructured); !ok {
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return schema.GroupVersionKind{}, fmt.Errorf("type %T is invalid for dynamic object typer", obj)
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}
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return obj.GetObjectKind().GroupVersionKind(), nil
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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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gvk, err := d.ObjectKind(obj)
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if err != nil {
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return nil, false, err
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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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// IsUnversioned returns false always because runtime.Unstructured objects
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// should always have group,version,kind information set. ok will be true if the
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// object's group,version,kind is api.Registry.
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func (d *UnstructuredObjectTyper) IsUnversioned(obj runtime.Object) (unversioned bool, ok bool) {
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gvk, err := d.ObjectKind(obj)
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if err != nil {
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return false, false
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}
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return false, d.registered[gvk]
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}
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var _ runtime.ObjectTyper = &UnstructuredObjectTyper{}
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