143 lines
4.9 KiB
Go
143 lines
4.9 KiB
Go
package search
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"k8s.io/apimachinery/pkg/fields"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/util/validation/field"
|
|
"k8s.io/apiserver/pkg/registry/generic"
|
|
"k8s.io/apiserver/pkg/storage"
|
|
"k8s.io/apiserver/pkg/storage/names"
|
|
"sigs.k8s.io/structured-merge-diff/v4/fieldpath"
|
|
|
|
searchapis "github.com/karmada-io/karmada/pkg/apis/search"
|
|
)
|
|
|
|
// NewStrategy creates and returns a ResourceRegistry Strategy instance.
|
|
func NewStrategy(typer runtime.ObjectTyper) Strategy {
|
|
return Strategy{typer, names.SimpleNameGenerator}
|
|
}
|
|
|
|
// GetAttrs returns labels.Set, fields.Set, and error in case the given runtime.Object is not a ResourceRegistry.
|
|
func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
|
|
resourceRegistry, ok := obj.(*searchapis.ResourceRegistry)
|
|
if !ok {
|
|
return nil, nil, fmt.Errorf("given object is not a ResourceRegistry")
|
|
}
|
|
return resourceRegistry.ObjectMeta.Labels, SelectableFields(resourceRegistry), nil
|
|
}
|
|
|
|
// MatchResourceRegistry is the filter used by the generic etcd backend to watch events
|
|
// from etcd to clients of the apiserver only interested in specific labels/fields.
|
|
func MatchResourceRegistry(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
|
|
return storage.SelectionPredicate{
|
|
Label: label,
|
|
Field: field,
|
|
GetAttrs: GetAttrs,
|
|
}
|
|
}
|
|
|
|
// SelectableFields returns a field set that represents the object.
|
|
func SelectableFields(obj *searchapis.ResourceRegistry) fields.Set {
|
|
return generic.ObjectMetaFieldsSet(&obj.ObjectMeta, false)
|
|
}
|
|
|
|
// Strategy implements behavior for ResourceRegistry.
|
|
type Strategy struct {
|
|
runtime.ObjectTyper
|
|
names.NameGenerator
|
|
}
|
|
|
|
// NamespaceScoped returns if the object must be in a namespace.
|
|
func (Strategy) NamespaceScoped() bool {
|
|
return false
|
|
}
|
|
|
|
// GetResetFields returns the set of fields that get reset by the strategy
|
|
// and should not be modified by the user.
|
|
func (Strategy) GetResetFields() map[fieldpath.APIVersion]*fieldpath.Set {
|
|
return map[fieldpath.APIVersion]*fieldpath.Set{
|
|
"search.karmada.io/v1alpha1": fieldpath.NewSet(
|
|
fieldpath.MakePathOrDie("status"),
|
|
),
|
|
}
|
|
}
|
|
|
|
// PrepareForCreate is invoked on create before validation to normalize the object.
|
|
func (Strategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
|
|
}
|
|
|
|
// PrepareForUpdate is invoked on update before validation to normalize the object.
|
|
func (Strategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
|
|
}
|
|
|
|
// Validate returns an ErrorList with validation errors or nil.
|
|
func (Strategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
|
|
// TODO: add validation for ResourceRegistry
|
|
return field.ErrorList{}
|
|
}
|
|
|
|
// WarningsOnCreate returns warnings for the creation of the given object.
|
|
func (Strategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string { return nil }
|
|
|
|
// AllowCreateOnUpdate returns true if the object can be created by a PUT.
|
|
func (Strategy) AllowCreateOnUpdate() bool {
|
|
return false
|
|
}
|
|
|
|
// AllowUnconditionalUpdate returns true if the object can be updated
|
|
// unconditionally (irrespective of the latest resource version), when
|
|
// there is no resource version specified in the object.
|
|
func (Strategy) AllowUnconditionalUpdate() bool {
|
|
return true
|
|
}
|
|
|
|
// Canonicalize allows an object to be mutated into a canonical form.
|
|
func (Strategy) Canonicalize(obj runtime.Object) {
|
|
}
|
|
|
|
// ValidateUpdate is invoked after default fields in the object have been
|
|
// filled in before the object is persisted.
|
|
func (Strategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
|
|
// TODO: add validation for ResourceRegistry
|
|
return field.ErrorList{}
|
|
}
|
|
|
|
// WarningsOnUpdate returns warnings for the given update.
|
|
func (Strategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
|
|
return nil
|
|
}
|
|
|
|
// StatusStrategy implements behavior for ResourceRegistryStatus.
|
|
type StatusStrategy struct {
|
|
Strategy
|
|
}
|
|
|
|
// NewStatusStrategy creates and returns a StatusStrategy instance.
|
|
func NewStatusStrategy(strategy Strategy) StatusStrategy {
|
|
return StatusStrategy{strategy}
|
|
}
|
|
|
|
// GetResetFields returns the set of fields that get reset by the strategy
|
|
// and should not be modified by the user.
|
|
func (StatusStrategy) GetResetFields() map[fieldpath.APIVersion]*fieldpath.Set {
|
|
return map[fieldpath.APIVersion]*fieldpath.Set{}
|
|
}
|
|
|
|
// PrepareForUpdate clears fields that are not allowed to be set by end users on update of status
|
|
func (StatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
|
|
}
|
|
|
|
// ValidateUpdate is the default update validation for an end user updating status
|
|
func (StatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
|
|
return field.ErrorList{}
|
|
}
|
|
|
|
// WarningsOnUpdate returns warnings for the given update.
|
|
func (StatusStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
|
|
return nil
|
|
}
|