add filer notification

weed/filer2/filer_notify.go

@@ -0,0 +1,38 @@
+package filer2
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/msgqueue"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func (f *Filer) NotifyUpdateEvent(oldEntry, newEntry *Entry) {
+	var key string
+	if oldEntry != nil {
+		key = string(oldEntry.FullPath)
+	} else if newEntry != nil {
+		key = string(newEntry.FullPath)
+	} else {
+		return
+	}
+
+	msgqueue.Queue.SendMessage(
+		key,
+		&filer_pb.EventNotification{
+			OldEntry: toProtoEntry(oldEntry),
+			NewEntry: toProtoEntry(newEntry),
+		},
+	)
+
+}
+
+func toProtoEntry(entry *Entry) *filer_pb.Entry {
+	if entry == nil {
+		return nil
+	}
+	return &filer_pb.Entry{
+		Name:        string(entry.FullPath),
+		IsDirectory: entry.IsDirectory(),
+		Attributes:  EntryAttributeToPb(entry),
+		Chunks:      entry.Chunks,
+	}
+}