//getDeliveryMode
java.net.URI delivery = null;
if(body.getSubscribe().getDelivery().getMode()!=null)
delivery = new java.net.URI(body.getSubscribe().getDelivery().getMode());
Subscription subscription = sH.create(filter,expires,delivery);
subscription.setNotificationConsumer(new ForwardConsumer(notifyto));
subscription.setSubscriptionEndConsumer(new ForwardEndConsumer(endto));
//check if topic expression
// if(filter instanceof TopicFilter == true){