forked from openshift/origin
/
registry.go
76 lines (65 loc) · 2.25 KB
/
registry.go
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package image
import (
"github.com/openshift/origin/pkg/image/api"
kapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/rest"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/labels"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/watch"
)
// Registry is an interface for things that know how to store Image objects.
type Registry interface {
// ListImages obtains a list of images that match a selector.
ListImages(ctx kapi.Context, selector labels.Selector) (*api.ImageList, error)
// GetImage retrieves a specific image.
GetImage(ctx kapi.Context, id string) (*api.Image, error)
// CreateImage creates a new image.
CreateImage(ctx kapi.Context, image *api.Image) error
// DeleteImage deletes an image.
DeleteImage(ctx kapi.Context, id string) error
// WatchImages watches for new or deleted images.
WatchImages(ctx kapi.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error)
}
// Storage is an interface for a standard REST Storage backend
type Storage interface {
rest.GracefulDeleter
rest.Lister
rest.Getter
rest.Watcher
Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error)
}
// storage puts strong typing around storage calls
type storage struct {
Storage
}
// NewRegistry returns a new Registry interface for the given Storage. Any mismatched
// types will panic.
func NewRegistry(s Storage) Registry {
return &storage{s}
}
func (s *storage) ListImages(ctx kapi.Context, label labels.Selector) (*api.ImageList, error) {
obj, err := s.List(ctx, label, fields.Everything())
if err != nil {
return nil, err
}
return obj.(*api.ImageList), nil
}
func (s *storage) GetImage(ctx kapi.Context, imageID string) (*api.Image, error) {
obj, err := s.Get(ctx, imageID)
if err != nil {
return nil, err
}
return obj.(*api.Image), nil
}
func (s *storage) CreateImage(ctx kapi.Context, image *api.Image) error {
_, err := s.Create(ctx, image)
return err
}
func (s *storage) DeleteImage(ctx kapi.Context, imageID string) error {
_, err := s.Delete(ctx, imageID, nil)
return err
}
func (s *storage) WatchImages(ctx kapi.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
return s.Watch(ctx, label, field, resourceVersion)
}