7dbb6f02fe
Files that have RESTStorage implementations now end in "storage", and files that have registries now end in "registry". I removed some underscores in file names, since it seems to be go style not to have them. I split minion_registry.go into two files. We should consider splitting this package into two, to make more clear the separation between the layers.
108 lines
3.0 KiB
Go
108 lines
3.0 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package registry
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import (
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"fmt"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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)
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// MinionRegistryStorage implements the RESTStorage interface, backed by a MinionRegistry.
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type MinionRegistryStorage struct {
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registry MinionRegistry
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}
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func MakeMinionRegistryStorage(m MinionRegistry) apiserver.RESTStorage {
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return &MinionRegistryStorage{
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registry: m,
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}
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}
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func (storage *MinionRegistryStorage) toApiMinion(name string) api.Minion {
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return api.Minion{JSONBase: api.JSONBase{ID: name}}
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}
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func (storage *MinionRegistryStorage) List(selector labels.Selector) (interface{}, error) {
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nameList, err := storage.registry.List()
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if err != nil {
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return nil, err
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}
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var list api.MinionList
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for _, name := range nameList {
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list.Items = append(list.Items, storage.toApiMinion(name))
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}
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return list, nil
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}
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func (storage *MinionRegistryStorage) Get(id string) (interface{}, error) {
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exists, err := storage.registry.Contains(id)
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if !exists {
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return nil, ErrDoesNotExist
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}
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return storage.toApiMinion(id), err
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}
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func (storage *MinionRegistryStorage) Extract(body []byte) (interface{}, error) {
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var minion api.Minion
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err := api.DecodeInto(body, &minion)
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return minion, err
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}
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func (storage *MinionRegistryStorage) Create(obj interface{}) (<-chan interface{}, error) {
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minion, ok := obj.(api.Minion)
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if !ok {
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return nil, fmt.Errorf("not a minion: %#v", obj)
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}
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if minion.ID == "" {
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return nil, fmt.Errorf("ID should not be empty: %#v", minion)
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}
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return apiserver.MakeAsync(func() (interface{}, error) {
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err := storage.registry.Insert(minion.ID)
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if err != nil {
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return nil, err
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}
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contains, err := storage.registry.Contains(minion.ID)
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if err != nil {
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return nil, err
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}
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if contains {
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return storage.toApiMinion(minion.ID), nil
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}
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return nil, fmt.Errorf("unable to add minion %#v", minion)
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}), nil
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}
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func (storage *MinionRegistryStorage) Update(minion interface{}) (<-chan interface{}, error) {
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return nil, fmt.Errorf("Minions can only be created (inserted) and deleted.")
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}
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func (storage *MinionRegistryStorage) Delete(id string) (<-chan interface{}, error) {
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exists, err := storage.registry.Contains(id)
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if !exists {
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return nil, ErrDoesNotExist
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}
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if err != nil {
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return nil, err
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}
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return apiserver.MakeAsync(func() (interface{}, error) {
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return api.Status{Status: api.StatusSuccess}, storage.registry.Delete(id)
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}), nil
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}
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