mirror of
https://github.com/rocky-linux/peridot.git
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497 lines
14 KiB
Go
497 lines
14 KiB
Go
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/*
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Copyright 2015 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 unstructured
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import (
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"bytes"
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"errors"
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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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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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)
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// Unstructured allows objects that do not have Golang structs registered to be manipulated
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// generically. This can be used to deal with the API objects from a plug-in. Unstructured
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// objects still have functioning TypeMeta features-- kind, version, etc.
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//
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// WARNING: This object has accessors for the v1 standard metadata. You *MUST NOT* use this
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// type if you are dealing with objects that are not in the server meta v1 schema.
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//
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// TODO: make the serialization part of this type distinct from the field accessors.
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// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
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// +k8s:deepcopy-gen=true
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type Unstructured struct {
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// Object is a JSON compatible map with string, float, int, bool, []interface{}, or
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// map[string]interface{}
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// children.
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Object map[string]interface{}
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}
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var _ metav1.Object = &Unstructured{}
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var _ runtime.Unstructured = &Unstructured{}
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var _ metav1.ListInterface = &Unstructured{}
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func (obj *Unstructured) GetObjectKind() schema.ObjectKind { return obj }
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func (obj *Unstructured) IsList() bool {
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field, ok := obj.Object["items"]
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if !ok {
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return false
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}
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_, ok = field.([]interface{})
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return ok
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}
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func (obj *Unstructured) ToList() (*UnstructuredList, error) {
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if !obj.IsList() {
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// return an empty list back
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return &UnstructuredList{Object: obj.Object}, nil
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}
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ret := &UnstructuredList{}
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ret.Object = obj.Object
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err := obj.EachListItem(func(item runtime.Object) error {
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castItem := item.(*Unstructured)
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ret.Items = append(ret.Items, *castItem)
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return nil
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})
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if err != nil {
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return nil, err
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}
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return ret, nil
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}
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func (obj *Unstructured) EachListItem(fn func(runtime.Object) error) error {
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field, ok := obj.Object["items"]
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if !ok {
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return errors.New("content is not a list")
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}
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items, ok := field.([]interface{})
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if !ok {
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return fmt.Errorf("content is not a list: %T", field)
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}
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for _, item := range items {
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child, ok := item.(map[string]interface{})
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if !ok {
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return fmt.Errorf("items member is not an object: %T", child)
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}
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if err := fn(&Unstructured{Object: child}); err != nil {
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return err
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}
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}
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return nil
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}
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func (obj *Unstructured) UnstructuredContent() map[string]interface{} {
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if obj.Object == nil {
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return make(map[string]interface{})
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}
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return obj.Object
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}
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func (obj *Unstructured) SetUnstructuredContent(content map[string]interface{}) {
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obj.Object = content
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}
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// MarshalJSON ensures that the unstructured object produces proper
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// JSON when passed to Go's standard JSON library.
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func (u *Unstructured) MarshalJSON() ([]byte, error) {
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var buf bytes.Buffer
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err := UnstructuredJSONScheme.Encode(u, &buf)
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return buf.Bytes(), err
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}
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// UnmarshalJSON ensures that the unstructured object properly decodes
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// JSON when passed to Go's standard JSON library.
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func (u *Unstructured) UnmarshalJSON(b []byte) error {
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_, _, err := UnstructuredJSONScheme.Decode(b, nil, u)
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return err
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}
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// NewEmptyInstance returns a new instance of the concrete type containing only kind/apiVersion and no other data.
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// This should be called instead of reflect.New() for unstructured types because the go type alone does not preserve kind/apiVersion info.
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func (in *Unstructured) NewEmptyInstance() runtime.Unstructured {
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out := new(Unstructured)
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if in != nil {
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out.GetObjectKind().SetGroupVersionKind(in.GetObjectKind().GroupVersionKind())
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}
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return out
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}
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func (in *Unstructured) DeepCopy() *Unstructured {
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if in == nil {
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return nil
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}
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out := new(Unstructured)
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*out = *in
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out.Object = runtime.DeepCopyJSON(in.Object)
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return out
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}
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func (u *Unstructured) setNestedField(value interface{}, fields ...string) {
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if u.Object == nil {
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u.Object = make(map[string]interface{})
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}
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SetNestedField(u.Object, value, fields...)
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}
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func (u *Unstructured) setNestedStringSlice(value []string, fields ...string) {
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if u.Object == nil {
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u.Object = make(map[string]interface{})
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}
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SetNestedStringSlice(u.Object, value, fields...)
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}
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func (u *Unstructured) setNestedSlice(value []interface{}, fields ...string) {
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if u.Object == nil {
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u.Object = make(map[string]interface{})
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}
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SetNestedSlice(u.Object, value, fields...)
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}
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func (u *Unstructured) setNestedMap(value map[string]string, fields ...string) {
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if u.Object == nil {
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u.Object = make(map[string]interface{})
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}
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SetNestedStringMap(u.Object, value, fields...)
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}
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func (u *Unstructured) GetOwnerReferences() []metav1.OwnerReference {
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field, found, err := NestedFieldNoCopy(u.Object, "metadata", "ownerReferences")
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if !found || err != nil {
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return nil
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}
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original, ok := field.([]interface{})
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if !ok {
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return nil
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}
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ret := make([]metav1.OwnerReference, 0, len(original))
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for _, obj := range original {
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o, ok := obj.(map[string]interface{})
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if !ok {
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// expected map[string]interface{}, got something else
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return nil
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}
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ret = append(ret, extractOwnerReference(o))
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}
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return ret
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}
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func (u *Unstructured) SetOwnerReferences(references []metav1.OwnerReference) {
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if references == nil {
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RemoveNestedField(u.Object, "metadata", "ownerReferences")
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return
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}
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newReferences := make([]interface{}, 0, len(references))
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for _, reference := range references {
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out, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&reference)
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if err != nil {
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utilruntime.HandleError(fmt.Errorf("unable to convert Owner Reference: %v", err))
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continue
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}
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newReferences = append(newReferences, out)
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}
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u.setNestedField(newReferences, "metadata", "ownerReferences")
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}
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func (u *Unstructured) GetAPIVersion() string {
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return getNestedString(u.Object, "apiVersion")
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}
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func (u *Unstructured) SetAPIVersion(version string) {
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u.setNestedField(version, "apiVersion")
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}
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func (u *Unstructured) GetKind() string {
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return getNestedString(u.Object, "kind")
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}
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func (u *Unstructured) SetKind(kind string) {
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u.setNestedField(kind, "kind")
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}
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func (u *Unstructured) GetNamespace() string {
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return getNestedString(u.Object, "metadata", "namespace")
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}
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func (u *Unstructured) SetNamespace(namespace string) {
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if len(namespace) == 0 {
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RemoveNestedField(u.Object, "metadata", "namespace")
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return
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}
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u.setNestedField(namespace, "metadata", "namespace")
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}
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func (u *Unstructured) GetName() string {
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return getNestedString(u.Object, "metadata", "name")
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}
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func (u *Unstructured) SetName(name string) {
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if len(name) == 0 {
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RemoveNestedField(u.Object, "metadata", "name")
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return
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}
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u.setNestedField(name, "metadata", "name")
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}
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func (u *Unstructured) GetGenerateName() string {
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return getNestedString(u.Object, "metadata", "generateName")
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}
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func (u *Unstructured) SetGenerateName(generateName string) {
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if len(generateName) == 0 {
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RemoveNestedField(u.Object, "metadata", "generateName")
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return
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}
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u.setNestedField(generateName, "metadata", "generateName")
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}
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func (u *Unstructured) GetUID() types.UID {
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return types.UID(getNestedString(u.Object, "metadata", "uid"))
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}
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func (u *Unstructured) SetUID(uid types.UID) {
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if len(string(uid)) == 0 {
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RemoveNestedField(u.Object, "metadata", "uid")
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return
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}
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u.setNestedField(string(uid), "metadata", "uid")
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}
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func (u *Unstructured) GetResourceVersion() string {
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return getNestedString(u.Object, "metadata", "resourceVersion")
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}
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func (u *Unstructured) SetResourceVersion(resourceVersion string) {
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if len(resourceVersion) == 0 {
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RemoveNestedField(u.Object, "metadata", "resourceVersion")
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return
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}
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u.setNestedField(resourceVersion, "metadata", "resourceVersion")
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}
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func (u *Unstructured) GetGeneration() int64 {
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val, found, err := NestedInt64(u.Object, "metadata", "generation")
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if !found || err != nil {
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return 0
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}
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return val
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}
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func (u *Unstructured) SetGeneration(generation int64) {
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if generation == 0 {
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RemoveNestedField(u.Object, "metadata", "generation")
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return
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}
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u.setNestedField(generation, "metadata", "generation")
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}
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func (u *Unstructured) GetSelfLink() string {
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return getNestedString(u.Object, "metadata", "selfLink")
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}
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func (u *Unstructured) SetSelfLink(selfLink string) {
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if len(selfLink) == 0 {
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RemoveNestedField(u.Object, "metadata", "selfLink")
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return
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}
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u.setNestedField(selfLink, "metadata", "selfLink")
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}
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func (u *Unstructured) GetContinue() string {
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return getNestedString(u.Object, "metadata", "continue")
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}
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func (u *Unstructured) SetContinue(c string) {
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if len(c) == 0 {
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RemoveNestedField(u.Object, "metadata", "continue")
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return
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}
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u.setNestedField(c, "metadata", "continue")
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}
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func (u *Unstructured) GetRemainingItemCount() *int64 {
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return getNestedInt64Pointer(u.Object, "metadata", "remainingItemCount")
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}
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func (u *Unstructured) SetRemainingItemCount(c *int64) {
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if c == nil {
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RemoveNestedField(u.Object, "metadata", "remainingItemCount")
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} else {
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u.setNestedField(*c, "metadata", "remainingItemCount")
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}
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}
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func (u *Unstructured) GetCreationTimestamp() metav1.Time {
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var timestamp metav1.Time
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timestamp.UnmarshalQueryParameter(getNestedString(u.Object, "metadata", "creationTimestamp"))
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return timestamp
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}
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func (u *Unstructured) SetCreationTimestamp(timestamp metav1.Time) {
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ts, _ := timestamp.MarshalQueryParameter()
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if len(ts) == 0 || timestamp.Time.IsZero() {
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RemoveNestedField(u.Object, "metadata", "creationTimestamp")
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return
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}
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u.setNestedField(ts, "metadata", "creationTimestamp")
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}
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func (u *Unstructured) GetDeletionTimestamp() *metav1.Time {
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var timestamp metav1.Time
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timestamp.UnmarshalQueryParameter(getNestedString(u.Object, "metadata", "deletionTimestamp"))
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if timestamp.IsZero() {
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return nil
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}
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return ×tamp
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}
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func (u *Unstructured) SetDeletionTimestamp(timestamp *metav1.Time) {
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if timestamp == nil {
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RemoveNestedField(u.Object, "metadata", "deletionTimestamp")
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return
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}
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ts, _ := timestamp.MarshalQueryParameter()
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u.setNestedField(ts, "metadata", "deletionTimestamp")
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}
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func (u *Unstructured) GetDeletionGracePeriodSeconds() *int64 {
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val, found, err := NestedInt64(u.Object, "metadata", "deletionGracePeriodSeconds")
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if !found || err != nil {
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return nil
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}
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return &val
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}
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func (u *Unstructured) SetDeletionGracePeriodSeconds(deletionGracePeriodSeconds *int64) {
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if deletionGracePeriodSeconds == nil {
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RemoveNestedField(u.Object, "metadata", "deletionGracePeriodSeconds")
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return
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}
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u.setNestedField(*deletionGracePeriodSeconds, "metadata", "deletionGracePeriodSeconds")
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}
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func (u *Unstructured) GetLabels() map[string]string {
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m, _, _ := NestedStringMap(u.Object, "metadata", "labels")
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return m
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}
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func (u *Unstructured) SetLabels(labels map[string]string) {
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if labels == nil {
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RemoveNestedField(u.Object, "metadata", "labels")
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return
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}
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u.setNestedMap(labels, "metadata", "labels")
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}
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func (u *Unstructured) GetAnnotations() map[string]string {
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m, _, _ := NestedStringMap(u.Object, "metadata", "annotations")
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return m
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}
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func (u *Unstructured) SetAnnotations(annotations map[string]string) {
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if annotations == nil {
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RemoveNestedField(u.Object, "metadata", "annotations")
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return
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}
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u.setNestedMap(annotations, "metadata", "annotations")
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}
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func (u *Unstructured) SetGroupVersionKind(gvk schema.GroupVersionKind) {
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u.SetAPIVersion(gvk.GroupVersion().String())
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u.SetKind(gvk.Kind)
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}
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func (u *Unstructured) GroupVersionKind() schema.GroupVersionKind {
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gv, err := schema.ParseGroupVersion(u.GetAPIVersion())
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if err != nil {
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return schema.GroupVersionKind{}
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}
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gvk := gv.WithKind(u.GetKind())
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return gvk
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}
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func (u *Unstructured) GetFinalizers() []string {
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val, _, _ := NestedStringSlice(u.Object, "metadata", "finalizers")
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return val
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}
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func (u *Unstructured) SetFinalizers(finalizers []string) {
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if finalizers == nil {
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RemoveNestedField(u.Object, "metadata", "finalizers")
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return
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}
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||
|
u.setNestedStringSlice(finalizers, "metadata", "finalizers")
|
||
|
}
|
||
|
|
||
|
func (u *Unstructured) GetClusterName() string {
|
||
|
return getNestedString(u.Object, "metadata", "clusterName")
|
||
|
}
|
||
|
|
||
|
func (u *Unstructured) SetClusterName(clusterName string) {
|
||
|
if len(clusterName) == 0 {
|
||
|
RemoveNestedField(u.Object, "metadata", "clusterName")
|
||
|
return
|
||
|
}
|
||
|
u.setNestedField(clusterName, "metadata", "clusterName")
|
||
|
}
|
||
|
|
||
|
func (u *Unstructured) GetManagedFields() []metav1.ManagedFieldsEntry {
|
||
|
items, found, err := NestedSlice(u.Object, "metadata", "managedFields")
|
||
|
if !found || err != nil {
|
||
|
return nil
|
||
|
}
|
||
|
managedFields := []metav1.ManagedFieldsEntry{}
|
||
|
for _, item := range items {
|
||
|
m, ok := item.(map[string]interface{})
|
||
|
if !ok {
|
||
|
utilruntime.HandleError(fmt.Errorf("unable to retrieve managedFields for object, item %v is not a map", item))
|
||
|
return nil
|
||
|
}
|
||
|
out := metav1.ManagedFieldsEntry{}
|
||
|
if err := runtime.DefaultUnstructuredConverter.FromUnstructured(m, &out); err != nil {
|
||
|
utilruntime.HandleError(fmt.Errorf("unable to retrieve managedFields for object: %v", err))
|
||
|
return nil
|
||
|
}
|
||
|
managedFields = append(managedFields, out)
|
||
|
}
|
||
|
return managedFields
|
||
|
}
|
||
|
|
||
|
func (u *Unstructured) SetManagedFields(managedFields []metav1.ManagedFieldsEntry) {
|
||
|
if managedFields == nil {
|
||
|
RemoveNestedField(u.Object, "metadata", "managedFields")
|
||
|
return
|
||
|
}
|
||
|
items := []interface{}{}
|
||
|
for _, managedFieldsEntry := range managedFields {
|
||
|
out, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&managedFieldsEntry)
|
||
|
if err != nil {
|
||
|
utilruntime.HandleError(fmt.Errorf("unable to set managedFields for object: %v", err))
|
||
|
return
|
||
|
}
|
||
|
items = append(items, out)
|
||
|
}
|
||
|
u.setNestedSlice(items, "metadata", "managedFields")
|
||
|
}
|