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registry.go
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registry.go
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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 node
import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/rest"
"k8s.io/kubernetes/pkg/watch"
)
// Registry is an interface for things that know how to store node.
type Registry interface {
ListNodes(ctx api.Context, options *api.ListOptions) (*api.NodeList, error)
CreateNode(ctx api.Context, node *api.Node) error
UpdateNode(ctx api.Context, node *api.Node) error
GetNode(ctx api.Context, nodeID string) (*api.Node, error)
DeleteNode(ctx api.Context, nodeID string) error
WatchNodes(ctx api.Context, options *api.ListOptions) (watch.Interface, 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) ListNodes(ctx api.Context, options *api.ListOptions) (*api.NodeList, error) {
obj, err := s.List(ctx, options)
if err != nil {
return nil, err
}
return obj.(*api.NodeList), nil
}
func (s *storage) CreateNode(ctx api.Context, node *api.Node) error {
_, err := s.Create(ctx, node)
return err
}
func (s *storage) UpdateNode(ctx api.Context, node *api.Node) error {
_, _, err := s.Update(ctx, node.Name, rest.DefaultUpdatedObjectInfo(node, api.Scheme))
return err
}
func (s *storage) WatchNodes(ctx api.Context, options *api.ListOptions) (watch.Interface, error) {
return s.Watch(ctx, options)
}
func (s *storage) GetNode(ctx api.Context, name string) (*api.Node, error) {
obj, err := s.Get(ctx, name)
if err != nil {
return nil, err
}
return obj.(*api.Node), nil
}
func (s *storage) DeleteNode(ctx api.Context, name string) error {
_, err := s.Delete(ctx, name, nil)
return err
}