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118 lines
4.3 KiB
Go
118 lines
4.3 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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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 persistentvolume
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/validation"
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"k8s.io/kubernetes/pkg/fields"
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"k8s.io/kubernetes/pkg/labels"
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"k8s.io/kubernetes/pkg/registry/generic"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/util/validation/field"
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)
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// persistentvolumeStrategy implements behavior for PersistentVolume objects
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type persistentvolumeStrategy struct {
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runtime.ObjectTyper
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api.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating PersistentVolume
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// objects via the REST API.
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var Strategy = persistentvolumeStrategy{api.Scheme, api.SimpleNameGenerator}
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func (persistentvolumeStrategy) NamespaceScoped() bool {
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return false
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}
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// ResetBeforeCreate clears the Status field which is not allowed to be set by end users on creation.
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func (persistentvolumeStrategy) PrepareForCreate(obj runtime.Object) {
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pv := obj.(*api.PersistentVolume)
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pv.Status = api.PersistentVolumeStatus{}
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}
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func (persistentvolumeStrategy) Validate(ctx api.Context, obj runtime.Object) field.ErrorList {
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persistentvolume := obj.(*api.PersistentVolume)
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return validation.ValidatePersistentVolume(persistentvolume)
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}
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// Canonicalize normalizes the object after validation.
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func (persistentvolumeStrategy) Canonicalize(obj runtime.Object) {
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}
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func (persistentvolumeStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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// PrepareForUpdate sets the Status fields which is not allowed to be set by an end user updating a PV
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func (persistentvolumeStrategy) PrepareForUpdate(obj, old runtime.Object) {
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newPv := obj.(*api.PersistentVolume)
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oldPv := obj.(*api.PersistentVolume)
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newPv.Status = oldPv.Status
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}
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func (persistentvolumeStrategy) ValidateUpdate(ctx api.Context, obj, old runtime.Object) field.ErrorList {
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errorList := validation.ValidatePersistentVolume(obj.(*api.PersistentVolume))
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return append(errorList, validation.ValidatePersistentVolumeUpdate(obj.(*api.PersistentVolume), old.(*api.PersistentVolume))...)
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}
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func (persistentvolumeStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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type persistentvolumeStatusStrategy struct {
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persistentvolumeStrategy
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}
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var StatusStrategy = persistentvolumeStatusStrategy{Strategy}
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// PrepareForUpdate sets the Spec field which is not allowed to be changed when updating a PV's Status
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func (persistentvolumeStatusStrategy) PrepareForUpdate(obj, old runtime.Object) {
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newPv := obj.(*api.PersistentVolume)
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oldPv := obj.(*api.PersistentVolume)
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newPv.Spec = oldPv.Spec
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}
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func (persistentvolumeStatusStrategy) ValidateUpdate(ctx api.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidatePersistentVolumeStatusUpdate(obj.(*api.PersistentVolume), old.(*api.PersistentVolume))
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}
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// MatchPersistentVolume returns a generic matcher for a given label and field selector.
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func MatchPersistentVolumes(label labels.Selector, field fields.Selector) generic.Matcher {
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return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
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persistentvolumeObj, ok := obj.(*api.PersistentVolume)
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if !ok {
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return false, fmt.Errorf("not a persistentvolume")
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}
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fields := PersistentVolumeToSelectableFields(persistentvolumeObj)
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return label.Matches(labels.Set(persistentvolumeObj.Labels)) && field.Matches(fields), nil
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})
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}
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// PersistentVolumeToSelectableFields returns a label set that represents the object
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func PersistentVolumeToSelectableFields(persistentvolume *api.PersistentVolume) labels.Set {
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objectMetaFieldsSet := generic.ObjectMetaFieldsSet(persistentvolume.ObjectMeta, false)
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specificFieldsSet := fields.Set{
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// This is a bug, but we need to support it for backward compatibility.
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"name": persistentvolume.Name,
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}
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return labels.Set(generic.MergeFieldsSets(objectMetaFieldsSet, specificFieldsSet))
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}
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