package filer2 import ( "context" "errors" "time" "github.com/joeslay/seaweedfs/weed/pb/filer_pb" "github.com/joeslay/seaweedfs/weed/stats" "github.com/joeslay/seaweedfs/weed/util" ) type FilerStore interface { // GetName gets the name to locate the configuration in filer.toml file GetName() string // Initialize initializes the file store Initialize(configuration util.Configuration) error InsertEntry(context.Context, *Entry) error UpdateEntry(context.Context, *Entry) (err error) // err == filer2.ErrNotFound if not found FindEntry(context.Context, FullPath) (entry *Entry, err error) DeleteEntry(context.Context, FullPath) (err error) ListDirectoryEntries(ctx context.Context, dirPath FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error) BeginTransaction(ctx context.Context) (context.Context, error) CommitTransaction(ctx context.Context) error RollbackTransaction(ctx context.Context) error } var ErrNotFound = errors.New("filer: no entry is found in filer store") type FilerStoreWrapper struct { actualStore FilerStore } func NewFilerStoreWrapper(store FilerStore) *FilerStoreWrapper { if innerStore, ok := store.(*FilerStoreWrapper); ok { return innerStore } return &FilerStoreWrapper{ actualStore: store, } } func (fsw *FilerStoreWrapper) GetName() string { return fsw.actualStore.GetName() } func (fsw *FilerStoreWrapper) Initialize(configuration util.Configuration) error { return fsw.actualStore.Initialize(configuration) } func (fsw *FilerStoreWrapper) InsertEntry(ctx context.Context, entry *Entry) error { stats.FilerStoreCounter.WithLabelValues(fsw.actualStore.GetName(), "insert").Inc() start := time.Now() defer func() { stats.FilerStoreHistogram.WithLabelValues(fsw.actualStore.GetName(), "insert").Observe(time.Since(start).Seconds()) }() filer_pb.BeforeEntrySerialization(entry.Chunks) return fsw.actualStore.InsertEntry(ctx, entry) } func (fsw *FilerStoreWrapper) UpdateEntry(ctx context.Context, entry *Entry) error { stats.FilerStoreCounter.WithLabelValues(fsw.actualStore.GetName(), "update").Inc() start := time.Now() defer func() { stats.FilerStoreHistogram.WithLabelValues(fsw.actualStore.GetName(), "update").Observe(time.Since(start).Seconds()) }() filer_pb.BeforeEntrySerialization(entry.Chunks) return fsw.actualStore.UpdateEntry(ctx, entry) } func (fsw *FilerStoreWrapper) FindEntry(ctx context.Context, fp FullPath) (entry *Entry, err error) { stats.FilerStoreCounter.WithLabelValues(fsw.actualStore.GetName(), "find").Inc() start := time.Now() defer func() { stats.FilerStoreHistogram.WithLabelValues(fsw.actualStore.GetName(), "find").Observe(time.Since(start).Seconds()) }() entry, err = fsw.actualStore.FindEntry(ctx, fp) if err != nil { return nil, err } filer_pb.AfterEntryDeserialization(entry.Chunks) return } func (fsw *FilerStoreWrapper) DeleteEntry(ctx context.Context, fp FullPath) (err error) { stats.FilerStoreCounter.WithLabelValues(fsw.actualStore.GetName(), "delete").Inc() start := time.Now() defer func() { stats.FilerStoreHistogram.WithLabelValues(fsw.actualStore.GetName(), "delete").Observe(time.Since(start).Seconds()) }() return fsw.actualStore.DeleteEntry(ctx, fp) } func (fsw *FilerStoreWrapper) ListDirectoryEntries(ctx context.Context, dirPath FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error) { stats.FilerStoreCounter.WithLabelValues(fsw.actualStore.GetName(), "list").Inc() start := time.Now() defer func() { stats.FilerStoreHistogram.WithLabelValues(fsw.actualStore.GetName(), "list").Observe(time.Since(start).Seconds()) }() entries, err := fsw.actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit) if err != nil { return nil, err } for _, entry := range entries { filer_pb.AfterEntryDeserialization(entry.Chunks) } return entries, err } func (fsw *FilerStoreWrapper) BeginTransaction(ctx context.Context) (context.Context, error) { return fsw.actualStore.BeginTransaction(ctx) } func (fsw *FilerStoreWrapper) CommitTransaction(ctx context.Context) error { return fsw.actualStore.CommitTransaction(ctx) } func (fsw *FilerStoreWrapper) RollbackTransaction(ctx context.Context) error { return fsw.actualStore.RollbackTransaction(ctx) }