kubernetes item 源码
kubernetes item 代码
文件路径：/staging/src/k8s.io/kubectl/pkg/apply/parse/item.go
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package parse
import (
"k8s.io/kube-openapi/pkg/util/proto"
"k8s.io/kubectl/pkg/apply"
)
// Item wraps values from 3 sources (recorded, local, remote).
// The values are not collated
type Item interface {
// CreateElement merges the values in the item into a combined Element
CreateElement(ItemVisitor) (apply.Element, error)
}
// primitiveItem contains a recorded, local, and remote value
type primitiveItem struct {
Name string
Primitive *proto.Primitive
apply.RawElementData
}
func (i *primitiveItem) CreateElement(v ItemVisitor) (apply.Element, error) {
return v.CreatePrimitiveElement(i)
}
func (i *primitiveItem) GetMeta() proto.Schema {
// https://golang.org/doc/faq#nil_error
if i.Primitive != nil {
return i.Primitive
}
return nil
}
// listItem contains a recorded, local, and remote list
type listItem struct {
Name string
Array *proto.Array
apply.ListElementData
}
func (i *listItem) CreateElement(v ItemVisitor) (apply.Element, error) {
return v.CreateListElement(i)
}
func (i *listItem) GetMeta() proto.Schema {
// https://golang.org/doc/faq#nil_error
if i.Array != nil {
return i.Array
}
return nil
}
// mapItem contains a recorded, local, and remote map
type mapItem struct {
Name string
Map *proto.Map
apply.MapElementData
}
func (i *mapItem) CreateElement(v ItemVisitor) (apply.Element, error) {
return v.CreateMapElement(i)
}
func (i *mapItem) GetMeta() proto.Schema {
// https://golang.org/doc/faq#nil_error
if i.Map != nil {
return i.Map
}
return nil
}
// mapItem contains a recorded, local, and remote map
type typeItem struct {
Name string
Type *proto.Kind
apply.MapElementData
}
func (i *typeItem) GetMeta() proto.Schema {
// https://golang.org/doc/faq#nil_error
if i.Type != nil {
return i.Type
}
return nil
}
func (i *typeItem) CreateElement(v ItemVisitor) (apply.Element, error) {
return v.CreateTypeElement(i)
}
// emptyItem contains no values
type emptyItem struct {
Name string
}
func (i *emptyItem) CreateElement(v ItemVisitor) (apply.Element, error) {
e := &apply.EmptyElement{}
e.Name = i.Name
return e, nil
}
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