Chris Lu
4 years ago
2 changed files with 299 additions and 290 deletions
@ -0,0 +1,299 @@ |
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package filer |
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import ( |
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"context" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/viant/ptrie" |
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"strings" |
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"time" |
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb" |
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"github.com/chrislusf/seaweedfs/weed/stats" |
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"github.com/chrislusf/seaweedfs/weed/util" |
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) |
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var ( |
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_ = VirtualFilerStore(&FilerStoreWrapper{}) |
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) |
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type VirtualFilerStore interface { |
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FilerStore |
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DeleteHardLink(ctx context.Context, hardLinkId HardLinkId) error |
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DeleteOneEntry(ctx context.Context, entry *Entry) error |
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AddPathSpecificStore(path string, storeId string, store FilerStore) |
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} |
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type FilerStoreWrapper struct { |
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defaultStore FilerStore |
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pathToStore ptrie.Trie |
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storeIdToStore map[string]FilerStore |
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} |
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func NewFilerStoreWrapper(store FilerStore) *FilerStoreWrapper { |
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if innerStore, ok := store.(*FilerStoreWrapper); ok { |
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return innerStore |
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} |
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return &FilerStoreWrapper{ |
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defaultStore: store, |
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pathToStore: ptrie.New(), |
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storeIdToStore: make(map[string]FilerStore), |
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} |
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} |
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func (fsw *FilerStoreWrapper) AddPathSpecificStore(path string, storeId string, store FilerStore) { |
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fsw.storeIdToStore[storeId] = store |
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err := fsw.pathToStore.Put([]byte(path), storeId) |
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if err != nil { |
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glog.Fatalf("put path specific store: %v", err) |
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} |
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} |
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func (fsw *FilerStoreWrapper) getActualStore(path util.FullPath) (store FilerStore) { |
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store = fsw.defaultStore |
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if path == "/" { |
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return |
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} |
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var storeId string |
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fsw.pathToStore.MatchPrefix([]byte(path), func(key []byte, value interface{}) bool { |
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storeId = value.(string) |
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return false |
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}) |
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if storeId != "" { |
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store = fsw.storeIdToStore[storeId] |
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} |
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return |
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} |
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func (fsw *FilerStoreWrapper) getDefaultStore() (store FilerStore) { |
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return fsw.defaultStore |
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} |
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func (fsw *FilerStoreWrapper) GetName() string { |
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return fsw.getDefaultStore().GetName() |
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} |
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func (fsw *FilerStoreWrapper) Initialize(configuration util.Configuration, prefix string) error { |
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return fsw.getDefaultStore().Initialize(configuration, prefix) |
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} |
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func (fsw *FilerStoreWrapper) InsertEntry(ctx context.Context, entry *Entry) error { |
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actualStore := fsw.getActualStore(entry.FullPath) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "insert").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "insert").Observe(time.Since(start).Seconds()) |
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}() |
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filer_pb.BeforeEntrySerialization(entry.Chunks) |
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if entry.Mime == "application/octet-stream" { |
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entry.Mime = "" |
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} |
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if err := fsw.handleUpdateToHardLinks(ctx, entry); err != nil { |
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return err |
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} |
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glog.V(4).Infof("InsertEntry %s", entry.FullPath) |
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return actualStore.InsertEntry(ctx, entry) |
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} |
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func (fsw *FilerStoreWrapper) UpdateEntry(ctx context.Context, entry *Entry) error { |
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actualStore := fsw.getActualStore(entry.FullPath) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "update").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "update").Observe(time.Since(start).Seconds()) |
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}() |
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filer_pb.BeforeEntrySerialization(entry.Chunks) |
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if entry.Mime == "application/octet-stream" { |
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entry.Mime = "" |
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} |
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if err := fsw.handleUpdateToHardLinks(ctx, entry); err != nil { |
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return err |
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} |
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glog.V(4).Infof("UpdateEntry %s", entry.FullPath) |
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return actualStore.UpdateEntry(ctx, entry) |
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} |
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func (fsw *FilerStoreWrapper) FindEntry(ctx context.Context, fp util.FullPath) (entry *Entry, err error) { |
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actualStore := fsw.getActualStore(fp) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "find").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "find").Observe(time.Since(start).Seconds()) |
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}() |
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glog.V(4).Infof("FindEntry %s", fp) |
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entry, err = actualStore.FindEntry(ctx, fp) |
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if err != nil { |
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return nil, err |
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} |
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fsw.maybeReadHardLink(ctx, entry) |
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filer_pb.AfterEntryDeserialization(entry.Chunks) |
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return |
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} |
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func (fsw *FilerStoreWrapper) DeleteEntry(ctx context.Context, fp util.FullPath) (err error) { |
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actualStore := fsw.getActualStore(fp) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "delete").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "delete").Observe(time.Since(start).Seconds()) |
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}() |
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existingEntry, findErr := fsw.FindEntry(ctx, fp) |
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if findErr == filer_pb.ErrNotFound { |
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return nil |
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} |
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if len(existingEntry.HardLinkId) != 0 { |
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// remove hard link
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glog.V(4).Infof("DeleteHardLink %s", existingEntry.FullPath) |
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if err = fsw.DeleteHardLink(ctx, existingEntry.HardLinkId); err != nil { |
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return err |
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} |
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} |
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glog.V(4).Infof("DeleteEntry %s", fp) |
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return actualStore.DeleteEntry(ctx, fp) |
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} |
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func (fsw *FilerStoreWrapper) DeleteOneEntry(ctx context.Context, existingEntry *Entry) (err error) { |
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actualStore := fsw.getActualStore(existingEntry.FullPath) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "delete").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "delete").Observe(time.Since(start).Seconds()) |
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}() |
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if len(existingEntry.HardLinkId) != 0 { |
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// remove hard link
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glog.V(4).Infof("DeleteHardLink %s", existingEntry.FullPath) |
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if err = fsw.DeleteHardLink(ctx, existingEntry.HardLinkId); err != nil { |
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return err |
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} |
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} |
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glog.V(4).Infof("DeleteOneEntry %s", existingEntry.FullPath) |
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return actualStore.DeleteEntry(ctx, existingEntry.FullPath) |
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} |
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func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.FullPath) (err error) { |
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actualStore := fsw.getActualStore(fp) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "deleteFolderChildren").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "deleteFolderChildren").Observe(time.Since(start).Seconds()) |
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}() |
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glog.V(4).Infof("DeleteFolderChildren %s", fp) |
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return actualStore.DeleteFolderChildren(ctx, fp) |
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} |
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func (fsw *FilerStoreWrapper) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error) { |
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actualStore := fsw.getActualStore(dirPath) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "list").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "list").Observe(time.Since(start).Seconds()) |
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}() |
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glog.V(4).Infof("ListDirectoryEntries %s from %s limit %d", dirPath, startFileName, limit) |
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entries, err := actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit) |
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if err != nil { |
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return nil, err |
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} |
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for _, entry := range entries { |
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fsw.maybeReadHardLink(ctx, entry) |
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filer_pb.AfterEntryDeserialization(entry.Chunks) |
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} |
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return entries, err |
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} |
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func (fsw *FilerStoreWrapper) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int, prefix string) ([]*Entry, error) { |
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actualStore := fsw.getActualStore(dirPath) |
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stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "prefixList").Inc() |
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start := time.Now() |
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defer func() { |
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stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "prefixList").Observe(time.Since(start).Seconds()) |
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}() |
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glog.V(4).Infof("ListDirectoryPrefixedEntries %s from %s prefix %s limit %d", dirPath, startFileName, prefix, limit) |
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entries, err := actualStore.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, prefix) |
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if err == ErrUnsupportedListDirectoryPrefixed { |
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entries, err = fsw.prefixFilterEntries(ctx, dirPath, startFileName, includeStartFile, limit, prefix) |
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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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for _, entry := range entries { |
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fsw.maybeReadHardLink(ctx, entry) |
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filer_pb.AfterEntryDeserialization(entry.Chunks) |
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} |
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return entries, nil |
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} |
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func (fsw *FilerStoreWrapper) prefixFilterEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int, prefix string) (entries []*Entry, err error) { |
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actualStore := fsw.getActualStore(dirPath) |
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entries, err = actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit) |
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if err != nil { |
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return nil, err |
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} |
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if prefix == "" { |
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return |
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} |
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count := 0 |
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var lastFileName string |
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notPrefixed := entries |
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entries = nil |
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for count < limit && len(notPrefixed) > 0 { |
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for _, entry := range notPrefixed { |
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lastFileName = entry.Name() |
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if strings.HasPrefix(entry.Name(), prefix) { |
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count++ |
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entries = append(entries, entry) |
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if count >= limit { |
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break |
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} |
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} |
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} |
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if count < limit { |
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notPrefixed, err = actualStore.ListDirectoryEntries(ctx, dirPath, lastFileName, false, limit) |
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if err != nil { |
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return |
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} |
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} |
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} |
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return |
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} |
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func (fsw *FilerStoreWrapper) BeginTransaction(ctx context.Context) (context.Context, error) { |
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return fsw.getDefaultStore().BeginTransaction(ctx) |
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} |
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func (fsw *FilerStoreWrapper) CommitTransaction(ctx context.Context) error { |
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return fsw.getDefaultStore().CommitTransaction(ctx) |
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} |
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func (fsw *FilerStoreWrapper) RollbackTransaction(ctx context.Context) error { |
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return fsw.getDefaultStore().RollbackTransaction(ctx) |
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} |
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func (fsw *FilerStoreWrapper) Shutdown() { |
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fsw.getDefaultStore().Shutdown() |
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} |
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func (fsw *FilerStoreWrapper) KvPut(ctx context.Context, key []byte, value []byte) (err error) { |
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return fsw.getDefaultStore().KvPut(ctx, key, value) |
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} |
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func (fsw *FilerStoreWrapper) KvGet(ctx context.Context, key []byte) (value []byte, err error) { |
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return fsw.getDefaultStore().KvGet(ctx, key) |
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} |
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func (fsw *FilerStoreWrapper) KvDelete(ctx context.Context, key []byte) (err error) { |
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return fsw.getDefaultStore().KvDelete(ctx, key) |
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} |
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