public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// topdish1.appspot.com/api/dishDetail?id[]=1&id[]=2&id[]=5...
String[] ids = req.getParameterValues(APIConstants.ID_ARRAY);
Set<Key> dishKeys = new HashSet<Key>();
for (int i = 0; i < ids.length; i++) {
try {
Long id = Long.parseLong(ids[i]);
dishKeys.add(KeyFactory.createKey(Dish.class.getSimpleName(), id));
} catch (NumberFormatException e) {
// malformed input
} catch (JDOObjectNotFoundException e) {
// object not found, skipping
}
}
final Set<Dish> dishes = Datastore.get(dishKeys);
final Set<DishLite> dishLites = ConvertToLite.convertDishes(dishes);
if (!dishLites.isEmpty()) {
final JSONArray array = new JSONArray();
// Traverse dishes
for (final DishLite dish : dishLites) {
try {
// Put a new JSONObject of the Dish in the Array
array.put(new JSONObject(new Gson().toJson(dish)));
} catch (Exception e) {
e.printStackTrace();
}
}
// Return array (empty or not)
resp.getWriter().write(APIUtils.generateJSONSuccessMessage(DishConstants.DISHES, array));
} else resp.getWriter().write(APIUtils.generateJSONFailureMessage("No dishes found"));
}
