/**
  * Get a single world by it's ID
  *
  * @param id the ID
  * @return the world
  */
 @RequestMapping("/{id}")
 @ResponseBody
 public WorldModel get(@PathVariable("id") final String id) {
   WorldModel worldModel = new WorldModel();
   worldModel.setId(id);
   worldModel.setName("Middle Earth");
   worldModel.setDescription("The world of The Hobbit and The Lord of the Rings");
   worldModel.setCreationDate(OffsetDateTime.now());
   worldModel.setOwner(new UserLink());
   worldModel.getOwner().setId(UUID.randomUUID().toString());
   worldModel.getOwner().setName("Tolkien");
   return worldModel;
 }