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|
package filer
import (
"context"
"io"
"math"
"strings"
"time"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/viant/ptrie"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/stats"
"github.com/seaweedfs/seaweedfs/weed/util"
)
var (
_ = VirtualFilerStore(&FilerStoreWrapper{})
_ = Debuggable(&FilerStoreWrapper{})
)
type VirtualFilerStore interface {
FilerStore
DeleteHardLink(ctx context.Context, hardLinkId HardLinkId) error
DeleteOneEntry(ctx context.Context, entry *Entry) error
AddPathSpecificStore(path string, storeId string, store FilerStore)
OnBucketCreation(bucket string)
OnBucketDeletion(bucket string)
CanDropWholeBucket() bool
}
type FilerStoreWrapper struct {
defaultStore FilerStore
pathToStore ptrie.Trie[string]
storeIdToStore map[string]FilerStore
}
func NewFilerStoreWrapper(store FilerStore) *FilerStoreWrapper {
if innerStore, ok := store.(*FilerStoreWrapper); ok {
return innerStore
}
return &FilerStoreWrapper{
defaultStore: store,
pathToStore: ptrie.New[string](),
storeIdToStore: make(map[string]FilerStore),
}
}
func (fsw *FilerStoreWrapper) CanDropWholeBucket() bool {
if ba, ok := fsw.defaultStore.(BucketAware); ok {
return ba.CanDropWholeBucket()
}
return false
}
func (fsw *FilerStoreWrapper) OnBucketCreation(bucket string) {
for _, store := range fsw.storeIdToStore {
if ba, ok := store.(BucketAware); ok {
ba.OnBucketCreation(bucket)
}
}
if ba, ok := fsw.defaultStore.(BucketAware); ok {
ba.OnBucketCreation(bucket)
}
}
func (fsw *FilerStoreWrapper) OnBucketDeletion(bucket string) {
for _, store := range fsw.storeIdToStore {
if ba, ok := store.(BucketAware); ok {
ba.OnBucketDeletion(bucket)
}
}
if ba, ok := fsw.defaultStore.(BucketAware); ok {
ba.OnBucketDeletion(bucket)
}
}
func (fsw *FilerStoreWrapper) AddPathSpecificStore(path string, storeId string, store FilerStore) {
fsw.storeIdToStore[storeId] = NewFilerStorePathTranslator(path, store)
err := fsw.pathToStore.Put([]byte(path), storeId)
if err != nil {
glog.Fatalf("put path specific store: %v", err)
}
}
func (fsw *FilerStoreWrapper) getActualStore(path util.FullPath) (store FilerStore) {
store = fsw.defaultStore
if path == "/" || path == "//" {
return
}
var storeId string
fsw.pathToStore.MatchPrefix([]byte(path), func(key []byte, value string) bool {
storeId = value
return false
})
if storeId != "" {
store = fsw.storeIdToStore[storeId]
}
return
}
func (fsw *FilerStoreWrapper) getDefaultStore() (store FilerStore) {
return fsw.defaultStore
}
func (fsw *FilerStoreWrapper) GetName() string {
return fsw.getDefaultStore().GetName()
}
func (fsw *FilerStoreWrapper) Initialize(configuration util.Configuration, prefix string) error {
return fsw.getDefaultStore().Initialize(configuration, prefix)
}
func (fsw *FilerStoreWrapper) InsertEntry(ctx context.Context, entry *Entry) error {
actualStore := fsw.getActualStore(entry.FullPath)
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "insert").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "insert").Observe(time.Since(start).Seconds())
}()
filer_pb.BeforeEntrySerialization(entry.GetChunks())
if entry.Mime == "application/octet-stream" {
entry.Mime = ""
}
if err := fsw.handleUpdateToHardLinks(ctx, entry); err != nil {
return err
}
// glog.V(4).Infof("InsertEntry %s", entry.FullPath)
return actualStore.InsertEntry(ctx, entry)
}
func (fsw *FilerStoreWrapper) UpdateEntry(ctx context.Context, entry *Entry) error {
actualStore := fsw.getActualStore(entry.FullPath)
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "update").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "update").Observe(time.Since(start).Seconds())
}()
filer_pb.BeforeEntrySerialization(entry.GetChunks())
if entry.Mime == "application/octet-stream" {
entry.Mime = ""
}
if err := fsw.handleUpdateToHardLinks(ctx, entry); err != nil {
return err
}
// glog.V(4).Infof("UpdateEntry %s", entry.FullPath)
return actualStore.UpdateEntry(ctx, entry)
}
func (fsw *FilerStoreWrapper) FindEntry(ctx context.Context, fp util.FullPath) (entry *Entry, err error) {
actualStore := fsw.getActualStore(fp)
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "find").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "find").Observe(time.Since(start).Seconds())
}()
entry, err = actualStore.FindEntry(ctx, fp)
// glog.V(4).Infof("FindEntry %s: %v", fp, err)
if err != nil {
if fsw.CanDropWholeBucket() && strings.Contains(err.Error(), "Table") && strings.Contains(err.Error(), "doesn't exist") {
err = filer_pb.ErrNotFound
}
return nil, err
}
fsw.maybeReadHardLink(ctx, entry)
filer_pb.AfterEntryDeserialization(entry.GetChunks())
return
}
func (fsw *FilerStoreWrapper) DeleteEntry(ctx context.Context, fp util.FullPath) (err error) {
actualStore := fsw.getActualStore(fp)
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "delete").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "delete").Observe(time.Since(start).Seconds())
}()
existingEntry, findErr := fsw.FindEntry(ctx, fp)
if findErr == filer_pb.ErrNotFound || existingEntry == nil {
return nil
}
if len(existingEntry.HardLinkId) != 0 {
// remove hard link
op := ctx.Value("OP")
if op != "MV" {
glog.V(4).Infof("DeleteHardLink %s", existingEntry.FullPath)
if err = fsw.DeleteHardLink(ctx, existingEntry.HardLinkId); err != nil {
return err
}
}
}
// glog.V(4).Infof("DeleteEntry %s", fp)
return actualStore.DeleteEntry(ctx, fp)
}
func (fsw *FilerStoreWrapper) DeleteOneEntry(ctx context.Context, existingEntry *Entry) (err error) {
actualStore := fsw.getActualStore(existingEntry.FullPath)
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "delete").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "delete").Observe(time.Since(start).Seconds())
}()
if len(existingEntry.HardLinkId) != 0 {
// remove hard link
op := ctx.Value("OP")
if op != "MV" {
glog.V(4).Infof("DeleteHardLink %s", existingEntry.FullPath)
if err = fsw.DeleteHardLink(ctx, existingEntry.HardLinkId); err != nil {
return err
}
}
}
// glog.V(4).Infof("DeleteOneEntry %s", existingEntry.FullPath)
return actualStore.DeleteEntry(ctx, existingEntry.FullPath)
}
func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.FullPath) (err error) {
actualStore := fsw.getActualStore(fp + "/")
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "deleteFolderChildren").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "deleteFolderChildren").Observe(time.Since(start).Seconds())
}()
// glog.V(4).Infof("DeleteFolderChildren %s", fp)
return actualStore.DeleteFolderChildren(ctx, fp)
}
func (fsw *FilerStoreWrapper) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc ListEachEntryFunc) (string, error) {
actualStore := fsw.getActualStore(dirPath + "/")
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "list").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "list").Observe(time.Since(start).Seconds())
}()
// glog.V(4).Infof("ListDirectoryEntries %s from %s limit %d", dirPath, startFileName, limit)
return actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit, func(entry *Entry) bool {
fsw.maybeReadHardLink(ctx, entry)
filer_pb.AfterEntryDeserialization(entry.GetChunks())
return eachEntryFunc(entry)
})
}
func (fsw *FilerStoreWrapper) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error) {
actualStore := fsw.getActualStore(dirPath + "/")
stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "prefixList").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(actualStore.GetName(), "prefixList").Observe(time.Since(start).Seconds())
}()
if limit > math.MaxInt32-1 {
limit = math.MaxInt32 - 1
}
// glog.V(4).Infof("ListDirectoryPrefixedEntries %s from %s prefix %s limit %d", dirPath, startFileName, prefix, limit)
adjustedEntryFunc := func(entry *Entry) bool {
fsw.maybeReadHardLink(ctx, entry)
filer_pb.AfterEntryDeserialization(entry.GetChunks())
return eachEntryFunc(entry)
}
lastFileName, err = actualStore.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, prefix, adjustedEntryFunc)
if err == ErrUnsupportedListDirectoryPrefixed {
lastFileName, err = fsw.prefixFilterEntries(ctx, dirPath, startFileName, includeStartFile, limit, prefix, adjustedEntryFunc)
}
return lastFileName, err
}
func (fsw *FilerStoreWrapper) prefixFilterEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error) {
actualStore := fsw.getActualStore(dirPath + "/")
if prefix == "" {
return actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit, eachEntryFunc)
}
var notPrefixed []*Entry
lastFileName, err = actualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit, func(entry *Entry) bool {
notPrefixed = append(notPrefixed, entry)
return true
})
if err != nil {
return
}
count := int64(0)
for count < limit && len(notPrefixed) > 0 {
for _, entry := range notPrefixed {
if strings.HasPrefix(entry.Name(), prefix) {
count++
if !eachEntryFunc(entry) {
return
}
if count >= limit {
break
}
}
}
if count < limit && lastFileName < prefix {
notPrefixed = notPrefixed[:0]
lastFileName, err = actualStore.ListDirectoryEntries(ctx, dirPath, lastFileName, false, limit, func(entry *Entry) bool {
notPrefixed = append(notPrefixed, entry)
return true
})
if err != nil {
return
}
} else {
break
}
}
return
}
func (fsw *FilerStoreWrapper) BeginTransaction(ctx context.Context) (context.Context, error) {
return fsw.getDefaultStore().BeginTransaction(ctx)
}
func (fsw *FilerStoreWrapper) CommitTransaction(ctx context.Context) error {
return fsw.getDefaultStore().CommitTransaction(ctx)
}
func (fsw *FilerStoreWrapper) RollbackTransaction(ctx context.Context) error {
return fsw.getDefaultStore().RollbackTransaction(ctx)
}
func (fsw *FilerStoreWrapper) Shutdown() {
fsw.getDefaultStore().Shutdown()
}
func (fsw *FilerStoreWrapper) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
return fsw.getDefaultStore().KvPut(ctx, key, value)
}
func (fsw *FilerStoreWrapper) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
return fsw.getDefaultStore().KvGet(ctx, key)
}
func (fsw *FilerStoreWrapper) KvDelete(ctx context.Context, key []byte) (err error) {
return fsw.getDefaultStore().KvDelete(ctx, key)
}
func (fsw *FilerStoreWrapper) Debug(writer io.Writer) {
if debuggable, ok := fsw.getDefaultStore().(Debuggable); ok {
debuggable.Debug(writer)
}
}
|
