Preconditions.checkNotNull(deliveryItem, "deliveryItem");
Preconditions.checkNotNull(deliveryItem.getItem().getId(), "id");
// Create the Customer Item resource
Representation publicItemRepresentation = new PublicItemRepresentation().get(deliveryItem.getItem());
// Create the wrapping DeliveryItem resource
RepresentationFactory factory = new DefaultRepresentationFactory();
return factory.newRepresentation("/delivery/item/" + deliveryItem.getItem().getSKU())