[ONOS-4703,4704] SONA : Floating IP handling in SONA initialization

Generates flow rules for existing Floating IPs when SONA is initialized.

Change-Id: I0cb86345600c3cf3ee72fca176ae6d82e7a8cc36
diff --git a/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java
index 21c8515..fd6f953 100644
--- a/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java
+++ b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java
@@ -105,6 +105,15 @@
      * @param id security group id
      * @return security group information
      */
-    OpenstackSecurityGroup getSecurityGroup(String id);
+    OpenstackSecurityGroup securityGroup(String id);
+
+    /**
+     * Returns collection of OpenStack floating IP information.
+     *
+     * @return collection of OpenStack floating IP information
+     */
+    Collection<OpenstackFloatingIP> floatingIps();
+
+
 
 }