| /* |
| Copyright 2018 The Kubernetes Authors. |
| |
| 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 registry |
| |
| import ( |
| "context" |
| |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/watch" |
| "k8s.io/apiserver/pkg/storage" |
| ) |
| |
| type DryRunnableStorage struct { |
| Storage storage.Interface |
| Codec runtime.Codec |
| } |
| |
| func (s *DryRunnableStorage) Versioner() storage.Versioner { |
| return s.Storage.Versioner() |
| } |
| |
| func (s *DryRunnableStorage) Create(ctx context.Context, key string, obj, out runtime.Object, ttl uint64, dryRun bool) error { |
| if dryRun { |
| if err := s.Storage.Get(ctx, key, "", out, false); err == nil { |
| return storage.NewKeyExistsError(key, 0) |
| } |
| s.copyInto(obj, out) |
| return nil |
| } |
| return s.Storage.Create(ctx, key, obj, out, ttl) |
| } |
| |
| func (s *DryRunnableStorage) Delete(ctx context.Context, key string, out runtime.Object, preconditions *storage.Preconditions, dryRun bool) error { |
| if dryRun { |
| if err := s.Storage.Get(ctx, key, "", out, false); err != nil { |
| return err |
| } |
| return preconditions.Check(key, out) |
| } |
| return s.Storage.Delete(ctx, key, out, preconditions) |
| } |
| |
| func (s *DryRunnableStorage) Watch(ctx context.Context, key string, resourceVersion string, p storage.SelectionPredicate) (watch.Interface, error) { |
| return s.Storage.Watch(ctx, key, resourceVersion, p) |
| } |
| |
| func (s *DryRunnableStorage) WatchList(ctx context.Context, key string, resourceVersion string, p storage.SelectionPredicate) (watch.Interface, error) { |
| return s.Storage.WatchList(ctx, key, resourceVersion, p) |
| } |
| |
| func (s *DryRunnableStorage) Get(ctx context.Context, key string, resourceVersion string, objPtr runtime.Object, ignoreNotFound bool) error { |
| return s.Storage.Get(ctx, key, resourceVersion, objPtr, ignoreNotFound) |
| } |
| |
| func (s *DryRunnableStorage) GetToList(ctx context.Context, key string, resourceVersion string, p storage.SelectionPredicate, listObj runtime.Object) error { |
| return s.Storage.GetToList(ctx, key, resourceVersion, p, listObj) |
| } |
| |
| func (s *DryRunnableStorage) List(ctx context.Context, key string, resourceVersion string, p storage.SelectionPredicate, listObj runtime.Object) error { |
| return s.Storage.List(ctx, key, resourceVersion, p, listObj) |
| } |
| |
| func (s *DryRunnableStorage) GuaranteedUpdate( |
| ctx context.Context, key string, ptrToType runtime.Object, ignoreNotFound bool, |
| preconditions *storage.Preconditions, tryUpdate storage.UpdateFunc, dryRun bool, suggestion ...runtime.Object) error { |
| if dryRun { |
| err := s.Storage.Get(ctx, key, "", ptrToType, ignoreNotFound) |
| if err != nil { |
| return err |
| } |
| err = preconditions.Check(key, ptrToType) |
| if err != nil { |
| return err |
| } |
| rev, err := s.Versioner().ObjectResourceVersion(ptrToType) |
| out, _, err := tryUpdate(ptrToType, storage.ResponseMeta{ResourceVersion: rev}) |
| if err != nil { |
| return err |
| } |
| s.copyInto(out, ptrToType) |
| return nil |
| } |
| return s.Storage.GuaranteedUpdate(ctx, key, ptrToType, ignoreNotFound, preconditions, tryUpdate, suggestion...) |
| } |
| |
| func (s *DryRunnableStorage) Count(key string) (int64, error) { |
| return s.Storage.Count(key) |
| } |
| |
| func (s *DryRunnableStorage) copyInto(in, out runtime.Object) error { |
| var data []byte |
| |
| data, err := runtime.Encode(s.Codec, in) |
| if err != nil { |
| return err |
| } |
| _, _, err = s.Codec.Decode(data, nil, out) |
| if err != nil { |
| return err |
| } |
| return nil |
| |
| } |