sucLogger.debug("Received flow stats update : {}",notification.toString());
final NodeStatisticsHandler sna = this.statisticsManager.getStatisticsHandler(notification.getId());
if (sna != null) {
sucLogger.debug("Received flow stats update : {}",notification.toString());
final NodeStatisticsHandler sna = this.statisticsManager.getStatisticsHandler(notification.getId());
if (sna != null) {