private Post parsePost(Element element) {
   Post post = new Post();
   post.setId(Long.parseLong(element.dataset().get("story-id")));
   post.setTitle(element.select(titleSelector).text());
   post.setContent(element.select(contentSelector).text());
   post.setDescription(element.select(descriptionSelector).text());
   post.setUrls(findUrls(post));
   return post;
 }
 private List<String> findUrls(Post post) {
   List<String> urls = new ArrayList<>();
   urls.addAll(findUrls(post.getTitle()));
   urls.addAll(findUrls(post.getDescription()));
   return urls;
 }