/**
* Produce a JsonObject by combining a JsonArray of names with the values of this JsonArray.
*
* @param names A JsonArray containing a list of key strings. These will be paired with the
* values.
* @return A JsonObject, or null if there are no names or if this JsonArray has no values.
* @throws JsonException If any of the names are null.
*/
public JsonObject toJsonObject(JsonArray names) {
if (names == null || names.length() == 0 || length() == 0) {
return null;
}
JsonObject jo = new JsonObject();
for (int i = 0; i < names.length(); i += 1) {
jo.put(names.getString(i), this.opt(i));
}
return jo;
}
/**
* Write the contents of the JsonArray as JSON text to a writer. For compactness, no whitespace is
* added.
*
* <p>Warning: This method assumes that the data structure is acyclical.
*
* @return The writer.
* @throws JsonException
*/
public Writer write(Writer writer) {
try {
boolean b = false;
int len = length();
writer.write('[');
for (int i = 0; i < len; i += 1) {
if (b) {
writer.write(',');
}
Object v = this.myArrayList.get(i);
if (v instanceof JsonObject) {
((JsonObject) v).write(writer);
} else if (v instanceof JsonArray) {
((JsonArray) v).write(writer);
} else {
writer.write(JsonObject.valueToString(v));
}
b = true;
}
writer.write(']');
return writer;
} catch (IOException e) {
throw new JsonException(e);
}
}
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/json;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
// THIS is for NOKIA application
Logger.getLogger(FBPlacesServlet.class.getName())
.log(Level.SEVERE, "Oops !!! Somebody called " + FBPlacesServlet.class.getName());
if (HttpUtils.isEmptyAny(request, "latitude", "longitude", "distance")) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
} else {
String latitude = request.getParameter("latitude");
String longitude = request.getParameter("longitude");
String distance = request.getParameter("distance");
int limit = NumberUtils.getInt(request.getParameter("limit"), 30);
FacebookClient facebookClient =
FacebookUtils.getFacebookClient(Commons.getProperty(Property.fb_app_token));
String query = request.getParameter("q");
JsonObject placesSearch = null;
if (query != null && query.length() > 0) {
placesSearch =
facebookClient.fetchObject(
"search",
JsonObject.class,
Parameter.with("type", "place"),
Parameter.with("center", latitude + "," + longitude),
Parameter.with("distance", distance),
Parameter.with("q", query),
Parameter.with("limit", limit));
} else {
placesSearch =
facebookClient.fetchObject(
"search",
JsonObject.class,
Parameter.with("type", "place"),
Parameter.with("center", latitude + "," + longitude),
Parameter.with("distance", distance),
Parameter.with("limit", limit));
}
JsonArray data = placesSearch.getJsonArray("data");
ArrayList<Object> jsonArray = new ArrayList<Object>();
String output = "";
if (request.getParameter("version") != null
&& request.getParameter("version").equals("3")) {
for (int i = 0; i < data.length(); i++) {
Map<String, Object> jsonObject = new HashMap<String, Object>();
JsonObject place = (JsonObject) data.get(i);
jsonObject.put("name", place.getString("name"));
jsonObject.put("url", place.getString("id"));
Map<String, String> desc = new HashMap<String, String>();
if (place.has("category")) {
desc.put("category", place.getString("category"));
}
JsonObject location = place.getJsonObject("location");
Iterator<?> iter = location.sortedKeys();
while (iter.hasNext()) {
String next = (String) iter.next();
if (!(next.equals("latitude") || next.equals("longitude"))) {
desc.put(next, location.getString(next));
}
}
jsonObject.put("desc", desc);
jsonObject.put("lat", MathUtils.normalizeE6(location.getDouble("latitude")));
jsonObject.put("lng", MathUtils.normalizeE6(location.getDouble("longitude")));
jsonArray.add(jsonObject);
}
JSONObject json = new JSONObject().put("ResultSet", jsonArray);
output = json.toString();
} else if (request.getParameter("version") != null
&& request.getParameter("version").equals("2")) {
for (int i = 0; i < data.length(); i++) {
Map<String, Object> jsonObject = new HashMap<String, Object>();
JsonObject place = (JsonObject) data.get(i);
jsonObject.put("name", place.getString("name"));
jsonObject.put("desc", place.getString("id"));
JsonObject location = place.getJsonObject("location");
jsonObject.put("lat", MathUtils.normalizeE6(location.getDouble("latitude")));
jsonObject.put("lng", MathUtils.normalizeE6(location.getDouble("longitude")));
jsonArray.add(jsonObject);
}
JSONObject json = new JSONObject().put("ResultSet", jsonArray);
output = json.toString();
} else {
// data
for (int i = 0; i < data.length(); i++) {
Map<String, Object> jsonObject = new HashMap<String, Object>();
JsonObject place = (JsonObject) data.get(i);
if (place.has("name")) {
jsonObject.put("name", place.getString("name"));
} else {
jsonObject.put("name", place.getString("id"));
}
jsonObject.put("id", place.getString("id"));
JsonObject location = place.getJsonObject("location");
jsonObject.put("lat", MathUtils.normalizeE6(location.getDouble("latitude")));
jsonObject.put("lng", MathUtils.normalizeE6(location.getDouble("longitude")));
jsonArray.add(jsonObject);
}
JSONObject json = new JSONObject().put("data", jsonArray);
output = json.toString();
}
out.println(output);
}
} catch (Exception ex) {
Logger.getLogger(FBPlacesServlet.class.getName()).log(Level.SEVERE, ex.getMessage(), ex);
if (ex instanceof FacebookOAuthException) {
response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
} else {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
} finally {
out.close();
}
}