karmada/pkg/util/detector/handler.go

88 lines
2.2 KiB
Go

package detector
import (
"fmt"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/klog/v2"
"github.com/karmada-io/karmada/pkg/util"
)
// ClusterWideKey is the object key which is a unique identifier under a cluster, across all resources.
type ClusterWideKey struct {
// Group is the API Group of resource being referenced.
Group string
// Version is the API Version of the resource being referenced.
Version string
// Kind is the type of resource being referenced.
Kind string
// Namespace is the name of a namespace.
Namespace string
// Name is the name of resource being referenced.
Name string
}
// String returns the key's printable info with format:
// "<GroupVersion>, kind=<Kind>, <NamespaceKey>"
func (k *ClusterWideKey) String() string {
return fmt.Sprintf("%s, kind=%s, %s", k.GroupVersion().String(), k.Kind, k.NamespaceKey())
}
// NamespaceKey returns the traditional key of a object.
func (k *ClusterWideKey) NamespaceKey() string {
if len(k.Namespace) > 0 {
return k.Namespace + "/" + k.Name
}
return k.Name
}
// GroupVersionKind returns the group, version, and kind of resource being referenced.
func (k *ClusterWideKey) GroupVersionKind() schema.GroupVersionKind {
return schema.GroupVersionKind{
Group: k.Group,
Version: k.Version,
Kind: k.Kind,
}
}
// GroupVersion returns the group and version of resource being referenced.
func (k *ClusterWideKey) GroupVersion() schema.GroupVersion {
return schema.GroupVersion{
Group: k.Group,
Version: k.Version,
}
}
// ClusterWideKeyFunc generates a ClusterWideKey for object.
func ClusterWideKeyFunc(obj interface{}) (util.QueueKey, error) {
runtimeObject, ok := obj.(runtime.Object)
if !ok {
klog.Errorf("Invalid object")
return nil, fmt.Errorf("not runtime object")
}
metaInfo, err := meta.Accessor(obj)
if err != nil { // should not happen
return nil, fmt.Errorf("object has no meta: %v", err)
}
gvk := runtimeObject.GetObjectKind().GroupVersionKind()
key := ClusterWideKey{
Group: gvk.Group,
Version: gvk.Version,
Kind: gvk.Kind,
Namespace: metaInfo.GetNamespace(),
Name: metaInfo.GetName(),
}
return key, nil
}