Support to provision and unprovision physical bridge along with ports

Change-Id: I16868a264ea95099b2184e652859a9adbec9eacd
diff --git a/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/Constants.java b/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/Constants.java
index 8decf3a..64a29b8 100644
--- a/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/Constants.java
+++ b/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/Constants.java
@@ -40,6 +40,10 @@
     public static final String VLAN_INTF_NAME = "vlanPort";
     public static final String UPLINK_PORT = "uplinkPort";
 
+    public static final String BRIDGE_PREFIX = "br-";
+    public static final String INTEGRATION_TO_PHYSICAL_PREFIX = "int-to-";
+    public static final String PHYSICAL_TO_INTEGRATION_SUFFIX = "-to-int";
+
     public static final String FLAT = "flat";
     public static final String VLAN = "vlan";
     public static final String VXLAN = "vxlan";