fier store: fix elastic search regression

fix https://github.com/chrislusf/seaweedfs/issues/1774

weed/filer/elastic/v7/elastic_store.go

@@ -101,7 +101,7 @@ func (store *ElasticStore) ListDirectoryPrefixedEntries(ctx context.Context, dir
 }
 
 func (store *ElasticStore) InsertEntry(ctx context.Context, entry *filer.Entry) (err error) {
-	index := getIndex(entry.FullPath)
+	index := getIndex(entry.FullPath, false)
 	dir, _ := entry.FullPath.DirAndName()
 	id := weed_util.Md5String([]byte(entry.FullPath))
 	esEntry := &ESEntry{
@@ -131,7 +131,7 @@ func (store *ElasticStore) UpdateEntry(ctx context.Context, entry *filer.Entry)
 }
 
 func (store *ElasticStore) FindEntry(ctx context.Context, fullpath weed_util.FullPath) (entry *filer.Entry, err error) {
-	index := getIndex(fullpath)
+	index := getIndex(fullpath, false)
 	id := weed_util.Md5String([]byte(fullpath))
 	searchResult, err := store.client.Get().
 		Index(index).
@@ -154,7 +154,7 @@ func (store *ElasticStore) FindEntry(ctx context.Context, fullpath weed_util.Ful
 }
 
 func (store *ElasticStore) DeleteEntry(ctx context.Context, fullpath weed_util.FullPath) (err error) {
-	index := getIndex(fullpath)
+	index := getIndex(fullpath, false)
 	id := weed_util.Md5String([]byte(fullpath))
 	if strings.Count(string(fullpath), "/") == 1 {
 		return store.deleteIndex(ctx, index)
@@ -198,47 +198,13 @@ func (store *ElasticStore) DeleteFolderChildren(ctx context.Context, fullpath we
 }
 
 func (store *ElasticStore) ListDirectoryEntries(ctx context.Context, dirPath weed_util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
-	if string(dirPath) == "/" {
-		return store.listRootDirectoryEntries(ctx, startFileName, includeStartFile, limit, eachEntryFunc)
-	}
 	return store.listDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit, eachEntryFunc)
 }
 
-func (store *ElasticStore) listRootDirectoryEntries(ctx context.Context, startFileName string, inclusive bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
-	indexResult, err := store.client.CatIndices().Do(ctx)
-	if err != nil {
-		glog.Errorf("list indices %v.", err)
-		return
-	}
-	for _, index := range indexResult {
-		if index.Index == indexKV {
-			continue
-		}
-		if strings.HasPrefix(index.Index, indexPrefix) {
-			if entry, err := store.FindEntry(ctx,
-				weed_util.FullPath("/"+strings.Replace(index.Index, indexPrefix, "", 1))); err == nil {
-				fileName := getFileName(entry.FullPath)
-				if fileName == startFileName && !inclusive {
-					continue
-				}
-				limit--
-				if limit < 0 {
-					break
-				}
-				if !eachEntryFunc(entry) {
-					break
-				}
-				lastFileName = fileName
-			}
-		}
-	}
-	return
-}
-
 func (store *ElasticStore) listDirectoryEntries(
 	ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
 	first := true
-	index := getIndex(fullpath)
+	index := getIndex(fullpath, true)
 	nextStart := ""
 	parentId := weed_util.Md5String([]byte(fullpath))
 	if _, err = store.client.Refresh(index).Do(ctx); err != nil {
@@ -277,7 +243,7 @@ func (store *ElasticStore) listDirectoryEntries(
 					return lastFileName, nil
 				}
 				nextStart = string(esEntry.Entry.FullPath)
-				fileName := getFileName(esEntry.Entry.FullPath)
+				fileName := esEntry.Entry.FullPath.Name()
 				if fileName == startFileName && !inclusive {
 					continue
 				}
@@ -287,6 +253,9 @@ func (store *ElasticStore) listDirectoryEntries(
 				lastFileName = fileName
 			}
 		}
+		if len(result.Hits.Hits) < store.maxPageSize {
+			break
+		}
 	}
 	return
 }
@@ -323,18 +292,16 @@ func (store *ElasticStore) Shutdown() {
 	store.client.Stop()
 }
 
-func getIndex(fullpath weed_util.FullPath) string {
+func getIndex(fullpath weed_util.FullPath, isDirectory bool) string {
 	path := strings.Split(string(fullpath), "/")
-	if len(path) > 1 {
-		return indexPrefix + path[1]
+	if isDirectory && len(path) >= 2 {
+		return indexPrefix + strings.ToLower(path[1])
 	}
-	return ""
-}
-
-func getFileName(fullpath weed_util.FullPath) string {
-	path := strings.Split(string(fullpath), "/")
-	if len(path) > 1 {
-		return path[len(path)-1]
+	if len(path) > 2 {
+		return indexPrefix + strings.ToLower(path[1])
+	}
+	if len(path) == 2 {
+		return indexPrefix
 	}
 	return ""
 }