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https://github.com/k3s-io/kubernetes.git
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64d98cba73
Prepares for the meta object to front multiple underlying types when TypeMeta and ObjectMeta is split in internal and v1beta3, but combined in v1beta1 and v1beta2
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 api
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import (
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"errors"
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"fmt"
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"regexp"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/meta"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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)
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var ErrNilObject = errors.New("Can't reference a nil object")
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var versionFromSelfLink = regexp.MustCompile("/api/([^/]*)/")
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// GetReference returns an ObjectReference which refers to the given
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// object, or an error if the object doesn't follow the conventions
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// that would allow this.
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func GetReference(obj runtime.Object) (*ObjectReference, error) {
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if obj == nil {
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return nil, ErrNilObject
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}
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jsonBase, err := meta.FindTypeMeta(obj)
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if err != nil {
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return nil, err
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}
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_, kind, err := Scheme.ObjectVersionAndKind(obj)
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if err != nil {
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return nil, err
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}
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version := versionFromSelfLink.FindStringSubmatch(jsonBase.SelfLink())
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if len(version) < 2 {
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return nil, fmt.Errorf("unexpected self link format: %v", jsonBase.SelfLink())
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}
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return &ObjectReference{
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Kind: kind,
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APIVersion: version[1],
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// TODO: correct Name and UID when TypeMeta makes a distinction
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Name: jsonBase.ID(),
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UID: jsonBase.ID(),
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ResourceVersion: jsonBase.ResourceVersion(),
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}, nil
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}
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