mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 01:38:10 +00:00
97 lines
2.8 KiB
Go
97 lines
2.8 KiB
Go
/*
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Copyright 2017 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 flunder
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import (
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"context"
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"fmt"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/apiserver/pkg/registry/generic"
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"k8s.io/apiserver/pkg/storage"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/sample-apiserver/pkg/apis/wardle/validation"
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"k8s.io/sample-apiserver/pkg/apis/wardle"
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)
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// NewStrategy creates and returns a flunderStrategy instance
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func NewStrategy(typer runtime.ObjectTyper) flunderStrategy {
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return flunderStrategy{typer, names.SimpleNameGenerator}
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}
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// GetAttrs returns labels.Set, fields.Set, and error in case the given runtime.Object is not a Flunder
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func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
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apiserver, ok := obj.(*wardle.Flunder)
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if !ok {
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return nil, nil, fmt.Errorf("given object is not a Flunder")
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}
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return labels.Set(apiserver.ObjectMeta.Labels), SelectableFields(apiserver), nil
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}
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// MatchFlunder is the filter used by the generic etcd backend to watch events
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// from etcd to clients of the apiserver only interested in specific labels/fields.
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func MatchFlunder(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
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return storage.SelectionPredicate{
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Label: label,
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Field: field,
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GetAttrs: GetAttrs,
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}
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}
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// SelectableFields returns a field set that represents the object.
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func SelectableFields(obj *wardle.Flunder) fields.Set {
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return generic.ObjectMetaFieldsSet(&obj.ObjectMeta, true)
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}
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type flunderStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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func (flunderStrategy) NamespaceScoped() bool {
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return true
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}
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func (flunderStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
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}
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func (flunderStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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}
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func (flunderStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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flunder := obj.(*wardle.Flunder)
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return validation.ValidateFlunder(flunder)
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}
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func (flunderStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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func (flunderStrategy) AllowUnconditionalUpdate() bool {
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return false
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}
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func (flunderStrategy) Canonicalize(obj runtime.Object) {
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}
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func (flunderStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return field.ErrorList{}
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}
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