| // Copyright 2016 The LUCI 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 coordinatorTest |
| |
| import ( |
| "context" |
| "errors" |
| "sync" |
| "sync/atomic" |
| "time" |
| |
| "go.chromium.org/luci/common/clock" |
| "go.chromium.org/luci/common/gcloud/gs" |
| "go.chromium.org/luci/logdog/appengine/coordinator" |
| "go.chromium.org/luci/logdog/common/storage" |
| "go.chromium.org/luci/logdog/common/storage/archive" |
| "go.chromium.org/luci/logdog/common/storage/bigtable" |
| ) |
| |
| // BigTableStorage is a bound BigTable-backed Storage instance. |
| type BigTableStorage struct { |
| // Testing is the base in-memory BigTable instance that is backing this |
| // Storage. |
| bigtable.Testing |
| |
| closed int32 |
| } |
| |
| // GetSignedURLs implements coordinator.Storage. |
| func (st *BigTableStorage) GetSignedURLs(context.Context, *coordinator.URLSigningRequest) ( |
| *coordinator.URLSigningResponse, error) { |
| |
| return nil, nil |
| } |
| |
| // Close implements storage.Storage. |
| func (st *BigTableStorage) Close() { |
| if atomic.AddInt32(&st.closed, 1) != 1 { |
| panic("already closed") |
| } |
| } |
| |
| // Config implements storage.Storage. |
| func (st *BigTableStorage) Config(context.Context, storage.Config) error { |
| return errors.New("not implemented") |
| } |
| |
| // ArchivalStorage is a bound GSClient-backed Storage instance. |
| type ArchivalStorage struct { |
| // Storage is the base (archive) Storage instance. |
| storage.Storage |
| |
| // Opts is the set of archival options that the Storage was instantiated with. |
| Opts archive.Options |
| |
| closed int32 |
| } |
| |
| // Close implements storage.Storage. |
| func (st *ArchivalStorage) Close() { |
| if atomic.AddInt32(&st.closed, 1) != 1 { |
| panic("already closed") |
| } |
| st.Storage.Close() |
| } |
| |
| // GetSignedURLs implements coordinator.SigningStorage. |
| func (st *ArchivalStorage) GetSignedURLs(c context.Context, req *coordinator.URLSigningRequest) ( |
| *coordinator.URLSigningResponse, error) { |
| |
| if req.Lifetime < 0 { |
| return nil, errors.New("invalid lifetime") |
| } |
| |
| resp := coordinator.URLSigningResponse{ |
| Expiration: clock.Now(c).Add(req.Lifetime), |
| } |
| |
| signURL := func(s gs.Path) string { return string(s) + "&signed=true" } |
| if req.Stream { |
| resp.Stream = signURL(st.Opts.Stream) |
| } |
| if req.Index { |
| resp.Index = signURL(st.Opts.Index) |
| } |
| return &resp, nil |
| } |
| |
| // StorageCache wraps the default storage cache instance, adding tracking |
| // information that is useful for testing. |
| type StorageCache struct { |
| Base storage.Cache |
| |
| statsMu sync.Mutex |
| stats StorageCacheStats |
| } |
| |
| // StorageCacheStats expose stats for a StorageCache instance. |
| type StorageCacheStats struct { |
| Puts int |
| Hits int |
| Misses int |
| } |
| |
| // Clear clears the stats for this cache instance. |
| func (sc *StorageCache) Clear() { |
| sc.statsMu.Lock() |
| defer sc.statsMu.Unlock() |
| sc.stats = StorageCacheStats{} |
| } |
| |
| // Stats returns the stats for this cache instance. |
| func (sc *StorageCache) Stats() StorageCacheStats { |
| sc.statsMu.Lock() |
| defer sc.statsMu.Unlock() |
| return sc.stats |
| } |
| |
| // Get implements storage.Cache. |
| func (sc *StorageCache) Get(c context.Context, key storage.CacheKey) ([]byte, bool) { |
| v, ok := sc.Base.Get(c, key) |
| |
| // Calculate our hit/misses from the result. |
| sc.statsMu.Lock() |
| defer sc.statsMu.Unlock() |
| if ok { |
| sc.stats.Hits++ |
| } else { |
| sc.stats.Misses++ |
| } |
| |
| return v, ok |
| } |
| |
| // Put implements storage.Cache. |
| func (sc *StorageCache) Put(c context.Context, key storage.CacheKey, v []byte, exp time.Duration) { |
| sc.Base.Put(c, key, v, exp) |
| |
| sc.statsMu.Lock() |
| defer sc.statsMu.Unlock() |
| sc.stats.Puts++ |
| } |