mirror of
https://github.com/vee1e/kubeedge.git
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88 lines
1.9 KiB
Go
88 lines
1.9 KiB
Go
/*
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Copyright 2025 The KubeEdge 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 jsonpatch
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import (
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"encoding/json"
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"k8s.io/klog/v2"
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)
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const (
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OpAdd Operation = "add"
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OpRemove Operation = "remove"
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OpReplace Operation = "replace"
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)
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type Operation string
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// Items maps the json expression of jsonpatch.
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type Items []Item
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// New returns a new Items.
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func New() Items {
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return make(Items, 0)
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}
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// Add adds a operation of jsonpatch .
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func (items Items) Add(op Operation, path string, value any) Items {
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item := newItem(op, path)
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if err := item.setValue(value); err != nil {
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// There are usually no errors here.
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klog.Warningf("failed to set value: %v", err)
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return items
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}
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return append(items, item)
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}
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// ToJSON returns the json buffers.
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func (items Items) ToJSON() ([]byte, error) {
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return json.Marshal(items)
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}
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// Item is a operation of jsonpatch.
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type Item struct {
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Op Operation `json:"op"`
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Path string `json:"path"`
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Value string `json:"value,omitempty"`
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}
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// newItem returns a new Item.
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func newItem(op Operation, path string) Item {
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return Item{
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Op: op,
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Path: path,
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}
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}
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// setValue sets a object value to jsonpath. It will convert the structure into a json string.
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func (o *Item) setValue(value any) error {
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if value == nil {
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return nil
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}
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switch value := value.(type) {
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case string:
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o.Value = value
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default:
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bff, err := json.Marshal(value)
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if err != nil {
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return err
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}
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o.Value = string(bff)
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}
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return nil
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}
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