stats are being sent; now handle them
diff --git a/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowController.java b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowController.java
index 6b2ca9c..b7e98c3 100644
--- a/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowController.java
+++ b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowController.java
@@ -78,6 +78,20 @@
public void removePacketListener(PacketListener listener);
/**
+ * Register a listener for OF msg events.
+ *
+ * @param listener the listener to notify
+ */
+ public void addEventListener(OpenFlowEventListener listener);
+
+ /**
+ * Unregister a listener.
+ *
+ * @param listener the listener to unregister
+ */
+ public void removeEventListener(OpenFlowEventListener listener);
+
+ /**
* Send a message to a particular switch.
* @param dpid the switch to send to.
* @param msg the message to send
diff --git a/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowEventListener.java b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowEventListener.java
new file mode 100644
index 0000000..3fbacc7
--- /dev/null
+++ b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/OpenFlowEventListener.java
@@ -0,0 +1,17 @@
+package org.onlab.onos.openflow.controller;
+
+import org.projectfloodlight.openflow.protocol.OFMessage;
+
+
+/**
+ * Notifies providers about openflow msg events.
+ */
+public interface OpenFlowEventListener {
+
+ /**
+ * Handles the message event.
+ *
+ * @param msg the message
+ */
+ public void handleMessage(Dpid dpid, OFMessage msg);
+}