diff --git a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
index ac9409f..0d95e49 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
@@ -2,7 +2,8 @@
 
 import java.util.Iterator;
 
-import net.onrc.onos.graph.GraphDBOperation;
+import net.onrc.onos.graph.DBOperation;
+import net.onrc.onos.graph.GraphDBManager;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IDeviceObject;
 
 import org.restlet.resource.Get;
@@ -12,7 +13,7 @@
 	
 	@Get("json")
 	public Iterator<IDeviceObject> retrieve() {
-		GraphDBOperation op = new GraphDBOperation("");
+		DBOperation op = GraphDBManager.getDBOperation("ramcloud", "/tmp/ramcloudconf");
 		
 		return op.getDevices().iterator();
 	}
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowprogrammer/FlowSynchronizer.java b/src/main/java/net/onrc/onos/ofcontroller/flowprogrammer/FlowSynchronizer.java
index b3c8e84..c62bd5d 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowprogrammer/FlowSynchronizer.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowprogrammer/FlowSynchronizer.java
@@ -22,7 +22,8 @@
 import org.slf4j.LoggerFactory;
 
 import net.floodlightcontroller.core.IOFSwitch;
-import net.onrc.onos.graph.GraphDBOperation;
+import net.onrc.onos.graph.DBOperation;
+import net.onrc.onos.graph.GraphDBManager;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IFlowEntry;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
 import net.onrc.onos.ofcontroller.util.Dpid;
@@ -40,12 +41,12 @@
 
     private static Logger log = LoggerFactory.getLogger(FlowSynchronizer.class);
 
-    private GraphDBOperation dbHandler;
+    private DBOperation dbHandler;
     protected IFlowPusherService pusher;
     private Map<IOFSwitch, Thread> switchThreads; 
 
     public FlowSynchronizer() {
-	dbHandler = new GraphDBOperation("");
+	dbHandler = GraphDBManager.getDBOperation("ramcloud", "/tmp/ramcloudconf");
 	switchThreads = new HashMap<IOFSwitch, Thread>();
     }