1 files changed, 28 insertions, 0 deletions
diff --git a/weed/filer/filer.go b/weed/filer/filer.go
new file mode 100644
index 000000000..fd23e119c
--- /dev/null
+++ b/weed/filer/filer.go
@@ -0,0 +1,28 @@
+package filer
+
+type FileId string //file id in SeaweedFS
+
+type FileEntry struct {
+	Name string `json:"name,omitempty"` //file name without path
+	Id   FileId `json:"fid,omitempty"`
+}
+
+type DirectoryId int32
+
+type DirectoryEntry struct {
+	Name string //dir name without path
+	Id   DirectoryId
+}
+
+type Filer interface {
+	CreateFile(fullFileName string, fid string) (err error)
+	FindFile(fullFileName string) (fid string, err error)
+	DeleteFile(fullFileName string) (fid string, err error)
+
+	//Optional functions. embedded filer support these
+	FindDirectory(dirPath string) (dirId DirectoryId, err error)
+	ListDirectories(dirPath string) (dirs []DirectoryEntry, err error)
+	ListFiles(dirPath string, lastFileName string, limit int) (files []FileEntry, err error)
+	DeleteDirectory(dirPath string, recursive bool) (err error)
+	Move(fromPath string, toPath string) (err error)
+}