Supports a creation of dpdk tunnel bridge and ports in OpenstackNode.

Change-Id: I2688837b3e677fd39f06135ff76ca856f0da1dbe
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
index 4d8167b..720cfd6 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
@@ -82,14 +82,28 @@
                                            int ovsdbPort,
                                            OvsdbController ovsdbController,
                                            DeviceService deviceService) {
-        OvsdbNodeId ovsdb = new OvsdbNodeId(osNode.managementIp(), ovsdbPort);
-        OvsdbClientService client = ovsdbController.getOvsdbClient(ovsdb);
+        OvsdbClientService client = getOvsdbClient(osNode, ovsdbPort, ovsdbController);
         return deviceService.isAvailable(osNode.ovsdb()) &&
                 client != null &&
                 client.isConnected();
     }
 
     /**
+     * Gets the ovsdb client with supplied openstack node.
+     *
+     * @param osNode openstack node
+     * @param ovsdbPort ovsdb port
+     * @param ovsdbController ovsdb controller
+     * @return ovsdb client
+     */
+    public static OvsdbClientService getOvsdbClient(OpenstackNode osNode,
+                                                    int ovsdbPort,
+                                                    OvsdbController ovsdbController) {
+        OvsdbNodeId ovsdb = new OvsdbNodeId(osNode.managementIp(), ovsdbPort);
+        return ovsdbController.getOvsdbClient(ovsdb);
+    }
+
+    /**
      * Obtains a connected openstack client.
      *
      * @param osNode openstack node