add WIP filer.replicate

weed/replication/replicator.go

@@ -0,0 +1,31 @@
+package replication
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/replication/sink"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+type Replicator struct {
+	sink *sink.FilerSink
+}
+
+func NewReplicator(config util.Configuration) *Replicator {
+
+	sink := &sink.FilerSink{}
+	sink.Initialize(config)
+
+	return &Replicator{
+		sink: sink,
+	}
+}
+
+func (r *Replicator) Replicate(key string, message *filer_pb.EventNotification) error {
+	if message.OldEntry != nil && message.NewEntry == nil {
+		return r.sink.DeleteEntry(message.OldEntry, message.DeleteChunks)
+	}
+	if message.OldEntry == nil && message.NewEntry != nil {
+		return r.sink.CreateEntry(message.NewEntry)
+	}
+	return r.sink.UpdateEntry(message.OldEntry, message.NewEntry, message.DeleteChunks)
+}