Added a summary command.
diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
index 2ebc5a25..ccbb33b 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
@@ -13,6 +13,13 @@
 public interface FlowRuleService {
 
     /**
+     * Returns the number of flow rules in the system.
+     *
+     * @return flow rule count
+     */
+    int getFlowRuleCount();
+
+    /**
      * Returns the collection of flow entries applied on the specified device.
      * This will include flow rules which may not yet have been applied to
      * the device.
@@ -72,7 +79,4 @@
      * @param listener flow rule listener
      */
     void removeListener(FlowRuleListener listener);
-
-
-
 }