mirror of
https://github.com/rocky-linux/peridot.git
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211 lines
6.0 KiB
Go
211 lines
6.0 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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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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)
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var _ runtime.Unstructured = &UnstructuredList{}
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var _ metav1.ListInterface = &UnstructuredList{}
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// UnstructuredList allows lists that do not have Golang structs
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// registered to be manipulated generically. This can be used to deal
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// with the API lists from a plug-in.
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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 UnstructuredList struct {
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Object map[string]interface{}
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// Items is a list of unstructured objects.
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Items []Unstructured `json:"items"`
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}
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func (u *UnstructuredList) GetObjectKind() schema.ObjectKind { return u }
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func (u *UnstructuredList) IsList() bool { return true }
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func (u *UnstructuredList) EachListItem(fn func(runtime.Object) error) error {
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for i := range u.Items {
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if err := fn(&u.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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// 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 (u *UnstructuredList) NewEmptyInstance() runtime.Unstructured {
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out := new(UnstructuredList)
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if u != nil {
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out.SetGroupVersionKind(u.GroupVersionKind())
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}
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return out
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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.
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func (u *UnstructuredList) UnstructuredContent() map[string]interface{} {
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out := make(map[string]interface{}, len(u.Object)+1)
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// shallow copy every property
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for k, v := range u.Object {
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out[k] = v
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}
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items := make([]interface{}, len(u.Items))
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for i, item := range u.Items {
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items[i] = item.UnstructuredContent()
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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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// SetUnstructuredContent obeys the conventions of List and keeps Items and the items
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// array in sync. If items is not an array of objects in the incoming map, then any
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// mismatched item will be removed.
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func (obj *UnstructuredList) SetUnstructuredContent(content map[string]interface{}) {
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obj.Object = content
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if content == nil {
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obj.Items = nil
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return
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}
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items, ok := obj.Object["items"].([]interface{})
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if !ok || items == nil {
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items = []interface{}{}
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}
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unstructuredItems := make([]Unstructured, 0, len(items))
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newItems := make([]interface{}, 0, len(items))
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for _, item := range items {
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o, ok := item.(map[string]interface{})
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if !ok {
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continue
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}
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unstructuredItems = append(unstructuredItems, Unstructured{Object: o})
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newItems = append(newItems, o)
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}
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obj.Items = unstructuredItems
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obj.Object["items"] = newItems
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}
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func (u *UnstructuredList) DeepCopy() *UnstructuredList {
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if u == nil {
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return nil
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}
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out := new(UnstructuredList)
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*out = *u
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out.Object = runtime.DeepCopyJSON(u.Object)
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out.Items = make([]Unstructured, len(u.Items))
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for i := range u.Items {
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u.Items[i].DeepCopyInto(&out.Items[i])
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}
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return out
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}
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// MarshalJSON ensures that the unstructured list object produces proper
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// JSON when passed to Go's standard JSON library.
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func (u *UnstructuredList) 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 list object properly
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// decodes JSON when passed to Go's standard JSON library.
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func (u *UnstructuredList) 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 (u *UnstructuredList) GetAPIVersion() string {
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return getNestedString(u.Object, "apiVersion")
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}
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func (u *UnstructuredList) SetAPIVersion(version string) {
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u.setNestedField(version, "apiVersion")
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}
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func (u *UnstructuredList) GetKind() string {
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return getNestedString(u.Object, "kind")
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}
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func (u *UnstructuredList) SetKind(kind string) {
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u.setNestedField(kind, "kind")
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}
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func (u *UnstructuredList) GetResourceVersion() string {
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return getNestedString(u.Object, "metadata", "resourceVersion")
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}
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func (u *UnstructuredList) SetResourceVersion(version string) {
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u.setNestedField(version, "metadata", "resourceVersion")
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}
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func (u *UnstructuredList) GetSelfLink() string {
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return getNestedString(u.Object, "metadata", "selfLink")
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}
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func (u *UnstructuredList) SetSelfLink(selfLink string) {
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u.setNestedField(selfLink, "metadata", "selfLink")
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}
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func (u *UnstructuredList) GetContinue() string {
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return getNestedString(u.Object, "metadata", "continue")
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}
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func (u *UnstructuredList) SetContinue(c string) {
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u.setNestedField(c, "metadata", "continue")
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}
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func (u *UnstructuredList) GetRemainingItemCount() *int64 {
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return getNestedInt64Pointer(u.Object, "metadata", "remainingItemCount")
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}
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func (u *UnstructuredList) 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 *UnstructuredList) 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 *UnstructuredList) 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 *UnstructuredList) 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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