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/*
Copyright 2014 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package pod
import (
"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/watch"
)
// Registry is an interface implemented by things that know how to store Pod objects.
type Registry interface {
// ListPods obtains a list of pods having labels which match selector.
ListPods(ctx api.Context, label labels.Selector) (*api.PodList, error)
// Watch for new/changed/deleted pods
WatchPods(ctx api.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error)
// Get a specific pod
GetPod(ctx api.Context, podID string) (*api.Pod, error)
// Create a pod based on a specification.
CreatePod(ctx api.Context, pod *api.Pod) error
// Update an existing pod
UpdatePod(ctx api.Context, pod *api.Pod) error
// Delete an existing pod
DeletePod(ctx api.Context, podID string) error
}
// storage puts strong typing around storage calls
type storage struct {
rest.StandardStorage
}
// NewRegistry returns a new Registry interface for the given Storage. Any mismatched
// types will panic.
func NewRegistry(s rest.StandardStorage) Registry {
return &storage{s}
}
func (s *storage) ListPods(ctx api.Context, label labels.Selector) (*api.PodList, error) {
obj, err := s.List(ctx, label, fields.Everything())
if err != nil {
return nil, err
}
return obj.(*api.PodList), nil
}
func (s *storage) WatchPods(ctx api.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
return s.Watch(ctx, label, field, resourceVersion)
}
func (s *storage) GetPod(ctx api.Context, podID string) (*api.Pod, error) {
obj, err := s.Get(ctx, podID)
if err != nil {
return nil, err
}
return obj.(*api.Pod), nil
}
func (s *storage) CreatePod(ctx api.Context, pod *api.Pod) error {
_, err := s.Create(ctx, pod)
return err
}
func (s *storage) UpdatePod(ctx api.Context, pod *api.Pod) error {
_, _, err := s.Update(ctx, pod)
return err
}
func (s *storage) DeletePod(ctx api.Context, podID string) error {
_, err := s.Delete(ctx, podID, nil)
return err
}
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