private void triggerUpdates() {
   Set<OvsdbInventoryListener> ovsdbInventoryListeners =
       OvsdbInventoryServiceImpl.getOvsdbInventoryListeners();
   for (OvsdbInventoryListener ovsdbInventoryListener : ovsdbInventoryListeners) {
     ovsdbInventoryListener.triggerUpdates();
   }
 }
  private void ovsdbUpdate(
      Node node,
      DataObject resourceAugmentationDataChanges,
      OvsdbInventoryListener.OvsdbType ovsdbType,
      Action action) {

    Set<OvsdbInventoryListener> ovsdbInventoryListeners =
        OvsdbInventoryServiceImpl.getOvsdbInventoryListeners();
    for (OvsdbInventoryListener ovsdbInventoryListener : ovsdbInventoryListeners) {
      ovsdbInventoryListener.ovsdbUpdate(node, resourceAugmentationDataChanges, ovsdbType, action);
    }
  }