843 lines
24 KiB
Go
843 lines
24 KiB
Go
/*
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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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gojson "encoding/json"
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"errors"
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"fmt"
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"io"
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"strings"
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"github.com/golang/glog"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/conversion/unstructured"
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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/apimachinery/pkg/util/json"
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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 _ runtime.Unstructured = &UnstructuredList{}
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func (obj *Unstructured) GetObjectKind() schema.ObjectKind { return obj }
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func (obj *UnstructuredList) GetObjectKind() schema.ObjectKind { return obj }
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func (obj *Unstructured) IsUnstructuredObject() {}
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func (obj *UnstructuredList) IsUnstructuredObject() {}
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func (obj *Unstructured) IsList() bool {
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if obj.Object != nil {
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_, ok := obj.Object["items"]
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return ok
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}
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return false
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}
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func (obj *UnstructuredList) IsList() bool { return true }
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func (obj *Unstructured) EachListItem(fn func(runtime.Object) error) error {
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if obj.Object == nil {
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return fmt.Errorf("content is not a list")
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}
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field, ok := obj.Object["items"]
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if !ok {
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return fmt.Errorf("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 nil
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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")
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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 *UnstructuredList) EachListItem(fn func(runtime.Object) error) error {
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for i := range obj.Items {
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if err := fn(&obj.Items[i]); 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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obj.Object = make(map[string]interface{})
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}
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return obj.Object
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}
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// UnstructuredContent returns a map contain an overlay of the Items field onto
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// the Object field. Items always overwrites overlay. Changing "items" in the
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// returned object will affect items in the underlying Items field, but changing
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// the "items" slice itself will have no effect.
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// TODO: expose SetUnstructuredContent on runtime.Unstructured that allows
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// items to be changed.
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func (obj *UnstructuredList) UnstructuredContent() map[string]interface{} {
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out := obj.Object
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if out == nil {
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out = make(map[string]interface{})
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}
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items := make([]interface{}, len(obj.Items))
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for i, item := range obj.Items {
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items[i] = item.Object
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}
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out["items"] = items
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return out
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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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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 = unstructured.DeepCopyJSON(in.Object)
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return out
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}
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func (in *UnstructuredList) DeepCopy() *UnstructuredList {
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if in == nil {
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return nil
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}
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out := new(UnstructuredList)
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*out = *in
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out.Object = unstructured.DeepCopyJSON(in.Object)
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out.Items = make([]Unstructured, len(in.Items))
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for i := range in.Items {
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in.Items[i].DeepCopyInto(&out.Items[i])
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}
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return out
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}
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func getNestedField(obj map[string]interface{}, fields ...string) interface{} {
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var val interface{} = obj
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for _, field := range fields {
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if _, ok := val.(map[string]interface{}); !ok {
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return nil
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}
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val = val.(map[string]interface{})[field]
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}
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return val
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}
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func getNestedString(obj map[string]interface{}, fields ...string) string {
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if str, ok := getNestedField(obj, fields...).(string); ok {
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return str
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}
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return ""
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}
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func getNestedInt64(obj map[string]interface{}, fields ...string) int64 {
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if str, ok := getNestedField(obj, fields...).(int64); ok {
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return str
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}
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return 0
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}
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func getNestedInt64Pointer(obj map[string]interface{}, fields ...string) *int64 {
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nested := getNestedField(obj, fields...)
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switch n := nested.(type) {
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case int64:
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return &n
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case *int64:
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return n
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default:
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return nil
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}
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}
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func getNestedSlice(obj map[string]interface{}, fields ...string) []string {
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if m, ok := getNestedField(obj, fields...).([]interface{}); ok {
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strSlice := make([]string, 0, len(m))
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for _, v := range m {
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if str, ok := v.(string); ok {
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strSlice = append(strSlice, str)
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}
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}
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return strSlice
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}
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return nil
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}
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func getNestedMap(obj map[string]interface{}, fields ...string) map[string]string {
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if m, ok := getNestedField(obj, fields...).(map[string]interface{}); ok {
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strMap := make(map[string]string, len(m))
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for k, v := range m {
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if str, ok := v.(string); ok {
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strMap[k] = str
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}
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}
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return strMap
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}
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return nil
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}
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func setNestedField(obj map[string]interface{}, value interface{}, fields ...string) {
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m := obj
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if len(fields) > 1 {
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for _, field := range fields[0 : len(fields)-1] {
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if _, ok := m[field].(map[string]interface{}); !ok {
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m[field] = make(map[string]interface{})
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}
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m = m[field].(map[string]interface{})
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}
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}
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m[fields[len(fields)-1]] = value
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}
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func setNestedSlice(obj map[string]interface{}, value []string, fields ...string) {
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m := make([]interface{}, 0, len(value))
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for _, v := range value {
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m = append(m, v)
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}
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setNestedField(obj, m, fields...)
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}
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func setNestedMap(obj map[string]interface{}, value map[string]string, fields ...string) {
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m := make(map[string]interface{}, len(value))
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for k, v := range value {
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m[k] = v
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}
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setNestedField(obj, m, fields...)
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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) setNestedSlice(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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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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setNestedMap(u.Object, value, fields...)
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}
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func extractOwnerReference(src interface{}) metav1.OwnerReference {
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v := src.(map[string]interface{})
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// though this field is a *bool, but when decoded from JSON, it's
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// unmarshalled as bool.
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var controllerPtr *bool
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controller, ok := (getNestedField(v, "controller")).(bool)
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if !ok {
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controllerPtr = nil
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} else {
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controllerCopy := controller
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controllerPtr = &controllerCopy
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}
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var blockOwnerDeletionPtr *bool
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blockOwnerDeletion, ok := (getNestedField(v, "blockOwnerDeletion")).(bool)
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if !ok {
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blockOwnerDeletionPtr = nil
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} else {
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blockOwnerDeletionCopy := blockOwnerDeletion
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blockOwnerDeletionPtr = &blockOwnerDeletionCopy
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}
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return metav1.OwnerReference{
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Kind: getNestedString(v, "kind"),
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Name: getNestedString(v, "name"),
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APIVersion: getNestedString(v, "apiVersion"),
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UID: (types.UID)(getNestedString(v, "uid")),
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Controller: controllerPtr,
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BlockOwnerDeletion: blockOwnerDeletionPtr,
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}
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}
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func setOwnerReference(src metav1.OwnerReference) map[string]interface{} {
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ret := make(map[string]interface{})
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setNestedField(ret, src.Kind, "kind")
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setNestedField(ret, src.Name, "name")
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setNestedField(ret, src.APIVersion, "apiVersion")
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setNestedField(ret, string(src.UID), "uid")
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// json.Unmarshal() extracts boolean json fields as bool, not as *bool and hence extractOwnerReference()
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// expects bool or a missing field, not *bool. So if pointer is nil, fields are omitted from the ret object.
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// If pointer is non-nil, they are set to the referenced value.
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if src.Controller != nil {
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setNestedField(ret, *src.Controller, "controller")
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}
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if src.BlockOwnerDeletion != nil {
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setNestedField(ret, *src.BlockOwnerDeletion, "blockOwnerDeletion")
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}
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return ret
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}
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func getOwnerReferences(object map[string]interface{}) ([]map[string]interface{}, error) {
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field := getNestedField(object, "metadata", "ownerReferences")
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if field == nil {
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return nil, fmt.Errorf("cannot find field metadata.ownerReferences in %v", object)
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}
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ownerReferences, ok := field.([]map[string]interface{})
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if ok {
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return ownerReferences, nil
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}
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// TODO: This is hacky...
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interfaces, ok := field.([]interface{})
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if !ok {
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return nil, fmt.Errorf("expect metadata.ownerReferences to be a slice in %#v", object)
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}
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ownerReferences = make([]map[string]interface{}, 0, len(interfaces))
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for i := 0; i < len(interfaces); i++ {
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r, ok := interfaces[i].(map[string]interface{})
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if !ok {
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return nil, fmt.Errorf("expect element metadata.ownerReferences to be a map[string]interface{} in %#v", object)
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}
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ownerReferences = append(ownerReferences, r)
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}
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return ownerReferences, nil
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}
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func (u *Unstructured) GetOwnerReferences() []metav1.OwnerReference {
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original, err := getOwnerReferences(u.Object)
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if err != nil {
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glog.V(6).Info(err)
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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 i := 0; i < len(original); i++ {
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ret = append(ret, extractOwnerReference(original[i]))
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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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var newReferences = make([]map[string]interface{}, 0, len(references))
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for i := 0; i < len(references); i++ {
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newReferences = append(newReferences, setOwnerReference(references[i]))
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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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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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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(name string) {
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u.setNestedField(name, "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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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(version string) {
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u.setNestedField(version, "metadata", "resourceVersion")
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}
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func (u *Unstructured) GetGeneration() int64 {
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return getNestedInt64(u.Object, "metadata", "generation")
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}
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func (u *Unstructured) SetGeneration(generation int64) {
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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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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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u.setNestedField(c, "metadata", "continue")
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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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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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u.setNestedField(nil, "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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return getNestedInt64Pointer(u.Object, "metadata", "deletionGracePeriodSeconds")
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}
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func (u *Unstructured) SetDeletionGracePeriodSeconds(deletionGracePeriodSeconds *int64) {
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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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return getNestedMap(u.Object, "metadata", "labels")
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}
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func (u *Unstructured) SetLabels(labels map[string]string) {
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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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return getNestedMap(u.Object, "metadata", "annotations")
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}
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func (u *Unstructured) SetAnnotations(annotations map[string]string) {
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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 {
|
|
gv, err := schema.ParseGroupVersion(u.GetAPIVersion())
|
|
if err != nil {
|
|
return schema.GroupVersionKind{}
|
|
}
|
|
gvk := gv.WithKind(u.GetKind())
|
|
return gvk
|
|
}
|
|
|
|
var converter = unstructured.NewConverter(false)
|
|
|
|
func (u *Unstructured) GetInitializers() *metav1.Initializers {
|
|
field := getNestedField(u.Object, "metadata", "initializers")
|
|
if field == nil {
|
|
return nil
|
|
}
|
|
obj, ok := field.(map[string]interface{})
|
|
if !ok {
|
|
return nil
|
|
}
|
|
out := &metav1.Initializers{}
|
|
if err := converter.FromUnstructured(obj, out); err != nil {
|
|
utilruntime.HandleError(fmt.Errorf("unable to retrieve initializers for object: %v", err))
|
|
}
|
|
return out
|
|
}
|
|
|
|
func (u *Unstructured) SetInitializers(initializers *metav1.Initializers) {
|
|
if u.Object == nil {
|
|
u.Object = make(map[string]interface{})
|
|
}
|
|
if initializers == nil {
|
|
setNestedField(u.Object, nil, "metadata", "initializers")
|
|
return
|
|
}
|
|
out, err := converter.ToUnstructured(initializers)
|
|
if err != nil {
|
|
utilruntime.HandleError(fmt.Errorf("unable to retrieve initializers for object: %v", err))
|
|
}
|
|
setNestedField(u.Object, out, "metadata", "initializers")
|
|
}
|
|
|
|
func (u *Unstructured) GetFinalizers() []string {
|
|
return getNestedSlice(u.Object, "metadata", "finalizers")
|
|
}
|
|
|
|
func (u *Unstructured) SetFinalizers(finalizers []string) {
|
|
u.setNestedSlice(finalizers, "metadata", "finalizers")
|
|
}
|
|
|
|
func (u *Unstructured) GetClusterName() string {
|
|
return getNestedString(u.Object, "metadata", "clusterName")
|
|
}
|
|
|
|
func (u *Unstructured) SetClusterName(clusterName string) {
|
|
u.setNestedField(clusterName, "metadata", "clusterName")
|
|
}
|
|
|
|
// UnstructuredList allows lists that do not have Golang structs
|
|
// registered to be manipulated generically. This can be used to deal
|
|
// with the API lists from a plug-in.
|
|
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
|
|
// +k8s:deepcopy-gen=true
|
|
type UnstructuredList struct {
|
|
Object map[string]interface{}
|
|
|
|
// Items is a list of unstructured objects.
|
|
Items []Unstructured `json:"items"`
|
|
}
|
|
|
|
var _ metav1.ListInterface = &UnstructuredList{}
|
|
|
|
// MarshalJSON ensures that the unstructured list object produces proper
|
|
// JSON when passed to Go's standard JSON library.
|
|
func (u *UnstructuredList) MarshalJSON() ([]byte, error) {
|
|
var buf bytes.Buffer
|
|
err := UnstructuredJSONScheme.Encode(u, &buf)
|
|
return buf.Bytes(), err
|
|
}
|
|
|
|
// UnmarshalJSON ensures that the unstructured list object properly
|
|
// decodes JSON when passed to Go's standard JSON library.
|
|
func (u *UnstructuredList) UnmarshalJSON(b []byte) error {
|
|
_, _, err := UnstructuredJSONScheme.Decode(b, nil, u)
|
|
return err
|
|
}
|
|
|
|
func (u *UnstructuredList) setNestedField(value interface{}, fields ...string) {
|
|
if u.Object == nil {
|
|
u.Object = make(map[string]interface{})
|
|
}
|
|
setNestedField(u.Object, value, fields...)
|
|
}
|
|
|
|
func (u *UnstructuredList) GetAPIVersion() string {
|
|
return getNestedString(u.Object, "apiVersion")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetAPIVersion(version string) {
|
|
u.setNestedField(version, "apiVersion")
|
|
}
|
|
|
|
func (u *UnstructuredList) GetKind() string {
|
|
return getNestedString(u.Object, "kind")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetKind(kind string) {
|
|
u.setNestedField(kind, "kind")
|
|
}
|
|
|
|
func (u *UnstructuredList) GetResourceVersion() string {
|
|
return getNestedString(u.Object, "metadata", "resourceVersion")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetResourceVersion(version string) {
|
|
u.setNestedField(version, "metadata", "resourceVersion")
|
|
}
|
|
|
|
func (u *UnstructuredList) GetSelfLink() string {
|
|
return getNestedString(u.Object, "metadata", "selfLink")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetSelfLink(selfLink string) {
|
|
u.setNestedField(selfLink, "metadata", "selfLink")
|
|
}
|
|
|
|
func (u *UnstructuredList) GetContinue() string {
|
|
return getNestedString(u.Object, "metadata", "continue")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetContinue(c string) {
|
|
u.setNestedField(c, "metadata", "continue")
|
|
}
|
|
|
|
func (u *UnstructuredList) SetGroupVersionKind(gvk schema.GroupVersionKind) {
|
|
u.SetAPIVersion(gvk.GroupVersion().String())
|
|
u.SetKind(gvk.Kind)
|
|
}
|
|
|
|
func (u *UnstructuredList) GroupVersionKind() schema.GroupVersionKind {
|
|
gv, err := schema.ParseGroupVersion(u.GetAPIVersion())
|
|
if err != nil {
|
|
return schema.GroupVersionKind{}
|
|
}
|
|
gvk := gv.WithKind(u.GetKind())
|
|
return gvk
|
|
}
|
|
|
|
// UnstructuredJSONScheme is capable of converting JSON data into the Unstructured
|
|
// type, which can be used for generic access to objects without a predefined scheme.
|
|
// TODO: move into serializer/json.
|
|
var UnstructuredJSONScheme runtime.Codec = unstructuredJSONScheme{}
|
|
|
|
type unstructuredJSONScheme struct{}
|
|
|
|
func (s unstructuredJSONScheme) Decode(data []byte, _ *schema.GroupVersionKind, obj runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
|
|
var err error
|
|
if obj != nil {
|
|
err = s.decodeInto(data, obj)
|
|
} else {
|
|
obj, err = s.decode(data)
|
|
}
|
|
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
gvk := obj.GetObjectKind().GroupVersionKind()
|
|
if len(gvk.Kind) == 0 {
|
|
return nil, &gvk, runtime.NewMissingKindErr(string(data))
|
|
}
|
|
|
|
return obj, &gvk, nil
|
|
}
|
|
|
|
func (unstructuredJSONScheme) Encode(obj runtime.Object, w io.Writer) error {
|
|
switch t := obj.(type) {
|
|
case *Unstructured:
|
|
return json.NewEncoder(w).Encode(t.Object)
|
|
case *UnstructuredList:
|
|
items := make([]map[string]interface{}, 0, len(t.Items))
|
|
for _, i := range t.Items {
|
|
items = append(items, i.Object)
|
|
}
|
|
listObj := make(map[string]interface{}, len(t.Object)+1)
|
|
for k, v := range t.Object { // Make a shallow copy
|
|
listObj[k] = v
|
|
}
|
|
listObj["items"] = items
|
|
return json.NewEncoder(w).Encode(listObj)
|
|
case *runtime.Unknown:
|
|
// TODO: Unstructured needs to deal with ContentType.
|
|
_, err := w.Write(t.Raw)
|
|
return err
|
|
default:
|
|
return json.NewEncoder(w).Encode(t)
|
|
}
|
|
}
|
|
|
|
func (s unstructuredJSONScheme) decode(data []byte) (runtime.Object, error) {
|
|
type detector struct {
|
|
Items gojson.RawMessage
|
|
}
|
|
var det detector
|
|
if err := json.Unmarshal(data, &det); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if det.Items != nil {
|
|
list := &UnstructuredList{}
|
|
err := s.decodeToList(data, list)
|
|
return list, err
|
|
}
|
|
|
|
// No Items field, so it wasn't a list.
|
|
unstruct := &Unstructured{}
|
|
err := s.decodeToUnstructured(data, unstruct)
|
|
return unstruct, err
|
|
}
|
|
|
|
func (s unstructuredJSONScheme) decodeInto(data []byte, obj runtime.Object) error {
|
|
switch x := obj.(type) {
|
|
case *Unstructured:
|
|
return s.decodeToUnstructured(data, x)
|
|
case *UnstructuredList:
|
|
return s.decodeToList(data, x)
|
|
case *runtime.VersionedObjects:
|
|
o, err := s.decode(data)
|
|
if err == nil {
|
|
x.Objects = []runtime.Object{o}
|
|
}
|
|
return err
|
|
default:
|
|
return json.Unmarshal(data, x)
|
|
}
|
|
}
|
|
|
|
func (unstructuredJSONScheme) decodeToUnstructured(data []byte, unstruct *Unstructured) error {
|
|
m := make(map[string]interface{})
|
|
if err := json.Unmarshal(data, &m); err != nil {
|
|
return err
|
|
}
|
|
|
|
unstruct.Object = m
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s unstructuredJSONScheme) decodeToList(data []byte, list *UnstructuredList) error {
|
|
type decodeList struct {
|
|
Items []gojson.RawMessage
|
|
}
|
|
|
|
var dList decodeList
|
|
if err := json.Unmarshal(data, &dList); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := json.Unmarshal(data, &list.Object); err != nil {
|
|
return err
|
|
}
|
|
|
|
// For typed lists, e.g., a PodList, API server doesn't set each item's
|
|
// APIVersion and Kind. We need to set it.
|
|
listAPIVersion := list.GetAPIVersion()
|
|
listKind := list.GetKind()
|
|
itemKind := strings.TrimSuffix(listKind, "List")
|
|
|
|
delete(list.Object, "items")
|
|
list.Items = nil
|
|
for _, i := range dList.Items {
|
|
unstruct := &Unstructured{}
|
|
if err := s.decodeToUnstructured([]byte(i), unstruct); err != nil {
|
|
return err
|
|
}
|
|
// This is hacky. Set the item's Kind and APIVersion to those inferred
|
|
// from the List.
|
|
if len(unstruct.GetKind()) == 0 && len(unstruct.GetAPIVersion()) == 0 {
|
|
unstruct.SetKind(itemKind)
|
|
unstruct.SetAPIVersion(listAPIVersion)
|
|
}
|
|
list.Items = append(list.Items, *unstruct)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// UnstructuredObjectConverter is an ObjectConverter for use with
|
|
// Unstructured objects. Since it has no schema or type information,
|
|
// it will only succeed for no-op conversions. This is provided as a
|
|
// sane implementation for APIs that require an object converter.
|
|
type UnstructuredObjectConverter struct{}
|
|
|
|
func (UnstructuredObjectConverter) Convert(in, out, context interface{}) error {
|
|
unstructIn, ok := in.(*Unstructured)
|
|
if !ok {
|
|
return fmt.Errorf("input type %T in not valid for unstructured conversion", in)
|
|
}
|
|
|
|
unstructOut, ok := out.(*Unstructured)
|
|
if !ok {
|
|
return fmt.Errorf("output type %T in not valid for unstructured conversion", out)
|
|
}
|
|
|
|
// maybe deep copy the map? It is documented in the
|
|
// ObjectConverter interface that this function is not
|
|
// guaranteeed to not mutate the input. Or maybe set the input
|
|
// object to nil.
|
|
unstructOut.Object = unstructIn.Object
|
|
return nil
|
|
}
|
|
|
|
func (UnstructuredObjectConverter) ConvertToVersion(in runtime.Object, target runtime.GroupVersioner) (runtime.Object, error) {
|
|
if kind := in.GetObjectKind().GroupVersionKind(); !kind.Empty() {
|
|
gvk, ok := target.KindForGroupVersionKinds([]schema.GroupVersionKind{kind})
|
|
if !ok {
|
|
// TODO: should this be a typed error?
|
|
return nil, fmt.Errorf("%v is unstructured and is not suitable for converting to %q", kind, target)
|
|
}
|
|
in.GetObjectKind().SetGroupVersionKind(gvk)
|
|
}
|
|
return in, nil
|
|
}
|
|
|
|
func (UnstructuredObjectConverter) ConvertFieldLabel(version, kind, label, value string) (string, string, error) {
|
|
return "", "", errors.New("unstructured cannot convert field labels")
|
|
}
|