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strategy.go
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strategy.go
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package group
import (
"fmt"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/validation/field"
apirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
kstorage "k8s.io/apiserver/pkg/storage"
kapi "k8s.io/kubernetes/pkg/api"
userapi "github.com/openshift/origin/pkg/user/apis/user"
"github.com/openshift/origin/pkg/user/apis/user/validation"
)
// groupStrategy implements behavior for Groups
type groupStrategy struct {
runtime.ObjectTyper
}
// Strategy is the default logic that applies when creating and updating Group
// objects via the REST API.
var Strategy = groupStrategy{kapi.Scheme}
func (groupStrategy) DefaultGarbageCollectionPolicy() rest.GarbageCollectionPolicy {
return rest.Unsupported
}
func (groupStrategy) PrepareForUpdate(ctx apirequest.Context, obj, old runtime.Object) {}
// NamespaceScoped is false for groups
func (groupStrategy) NamespaceScoped() bool {
return false
}
func (groupStrategy) GenerateName(base string) string {
return base
}
func (groupStrategy) PrepareForCreate(ctx apirequest.Context, obj runtime.Object) {
}
// Validate validates a new group
func (groupStrategy) Validate(ctx apirequest.Context, obj runtime.Object) field.ErrorList {
return validation.ValidateGroup(obj.(*userapi.Group))
}
// AllowCreateOnUpdate is false for groups
func (groupStrategy) AllowCreateOnUpdate() bool {
return false
}
func (groupStrategy) AllowUnconditionalUpdate() bool {
return false
}
// Canonicalize normalizes the object after validation.
func (groupStrategy) Canonicalize(obj runtime.Object) {
}
// ValidateUpdate is the default update validation for an end group.
func (groupStrategy) ValidateUpdate(ctx apirequest.Context, obj, old runtime.Object) field.ErrorList {
return validation.ValidateGroupUpdate(obj.(*userapi.Group), old.(*userapi.Group))
}
// GetAttrs returns labels and fields of a given object for filtering purposes
func GetAttrs(o runtime.Object) (labels.Set, fields.Set, error) {
obj, ok := o.(*userapi.Group)
if !ok {
return nil, nil, fmt.Errorf("not a Group")
}
return labels.Set(obj.Labels), SelectableFields(obj), nil
}
// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) kstorage.SelectionPredicate {
return kstorage.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: GetAttrs,
}
}
// SelectableFields returns a field set that can be used for filter selection
func SelectableFields(obj *userapi.Group) fields.Set {
return userapi.GroupToSelectableFields(obj)
}