added config properties for titan
diff --git a/src/main/java/net/floodlightcontroller/core/internal/Controller.java b/src/main/java/net/floodlightcontroller/core/internal/Controller.java
index 8a35b54..6f2d166 100644
--- a/src/main/java/net/floodlightcontroller/core/internal/Controller.java
+++ b/src/main/java/net/floodlightcontroller/core/internal/Controller.java
@@ -2065,7 +2065,7 @@
         initVendorMessages();
         this.systemStartTime = System.currentTimeMillis();
         this.swStore = new SwitchStorageImpl();
-        this.swStore.init("");
+        this.swStore.init("/tmp/cassandra.titan");
     }
     
     /**