mirror of https://github.com/knative/pkg.git
95 lines
3.0 KiB
Go
95 lines
3.0 KiB
Go
/*
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Copyright 2018 The Knative 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 kmeta
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import (
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"fmt"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/tools/cache"
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)
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// Accessor is a collection of interfaces from metav1.TypeMeta,
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// runtime.Object and metav1.Object that Kubernetes API types
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// registered with runtime.Scheme must support.
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type Accessor interface {
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// Interfaces for metav1.TypeMeta
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GroupVersionKind() schema.GroupVersionKind
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SetGroupVersionKind(gvk schema.GroupVersionKind)
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// Interfaces for runtime.Object
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GetObjectKind() schema.ObjectKind
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DeepCopyObject() runtime.Object
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// Interfaces for metav1.Object
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GetNamespace() string
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SetNamespace(namespace string)
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GetName() string
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SetName(name string)
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GetGenerateName() string
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SetGenerateName(name string)
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GetUID() types.UID
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SetUID(uid types.UID)
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GetResourceVersion() string
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SetResourceVersion(version string)
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GetGeneration() int64
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SetGeneration(generation int64)
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GetSelfLink() string
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SetSelfLink(selfLink string)
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GetCreationTimestamp() metav1.Time
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SetCreationTimestamp(timestamp metav1.Time)
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GetDeletionTimestamp() *metav1.Time
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SetDeletionTimestamp(timestamp *metav1.Time)
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GetDeletionGracePeriodSeconds() *int64
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SetDeletionGracePeriodSeconds(*int64)
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GetLabels() map[string]string
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SetLabels(labels map[string]string)
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GetAnnotations() map[string]string
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SetAnnotations(annotations map[string]string)
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GetInitializers() *metav1.Initializers
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SetInitializers(initializers *metav1.Initializers)
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GetFinalizers() []string
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SetFinalizers(finalizers []string)
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GetOwnerReferences() []metav1.OwnerReference
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SetOwnerReferences([]metav1.OwnerReference)
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GetClusterName() string
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SetClusterName(clusterName string)
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}
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// DeletionHandlingAccessor tries to convert given interface into Accessor first;
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// and to handle deletion, it try to fetch info from DeletedFinalStateUnknown on failure.
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// The name is a reference to cache.DeletionHandlingMetaNamespaceKeyFunc
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func DeletionHandlingAccessor(obj interface{}) (Accessor, error) {
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accessor, ok := obj.(Accessor)
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if !ok {
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// To handle obj deletion, try to fetch info from DeletedFinalStateUnknown.
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tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
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if !ok {
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return nil, fmt.Errorf("couldn't get Accessor from tombstone %#v", obj)
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}
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accessor, ok = tombstone.Obj.(Accessor)
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if !ok {
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return nil, fmt.Errorf("the object that Tombstone contained is not of kmeta.Accessor %#v", obj)
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}
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}
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return accessor, nil
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}
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