public JSONObject loadTestAndAllQuestions(JSONRPC2Request req, HttpServletRequest request)
throws Exception {
JSONObject jsonResult = new JSONObject();
JSONArray jsonAllQuestions = new JSONArray();
JSONObject jsonTest = new JSONObject();
// retrievers
Map<String, Object> params = req.getNamedParams();
NamedParamsRetriever np = new NamedParamsRetriever(params);
Map<String, Object> tParams = np.getMap("test");
NamedParamsRetriever testNp = new NamedParamsRetriever(tParams);
int tid = testNp.getInt("id");
// get data from DB
MySQLDAO dao = new MySQLDAO();
Test t = dao.loadTest(tid);
QuestionsList allQuestions = QuestionController.loadAllQuestions();
// set result
jsonTest = t.toJSONObject();
jsonAllQuestions = allQuestions.toJSONArray();
jsonResult.put("test", jsonTest);
jsonResult.put("questions", jsonAllQuestions);
return jsonResult;
}
public JSONObject checkTest(JSONRPC2Request req, HttpServletRequest request)
throws JSONRPC2Error, Exception {
JSONObject jsonResult = new JSONObject();
JSONArray jsonWrongQuestions = new JSONArray();
QuestionsList wrongQuestions = new QuestionsList();
// retrievers
Map<String, Object> params = req.getNamedParams();
NamedParamsRetriever np = new NamedParamsRetriever(params);
Map<String, Object> tParams = np.getMap("test");
NamedParamsRetriever testNp = new NamedParamsRetriever(tParams);
// get guessed questions values
QuestionsList guessQuestions = new QuestionsList();
List<Object> questions = testNp.getList("questions");
for (Object q : questions) {
// set new retriever for each question
NamedParamsRetriever questNp = new NamedParamsRetriever((Map<String, Object>) q);
// retrieve values
String answer = questNp.getString("answer");
String body = questNp.getString("body");
int id = questNp.getInt("id");
// create question with the values and add it to the guessed questions
Question quest = new Question();
quest.setId(id);
quest.setBody(body);
quest.setAnswer(answer);
guessQuestions.add(quest);
}
// get test
int tid = testNp.getInt("id");
MySQLDAO dao = new MySQLDAO();
Test t = dao.loadTest(tid);
// get true questions
MySQLDAO questionsDao = new MySQLDAO();
QuestionsList trueQuestions = questionsDao.loadQuestionsByTest(tid);
// cycle through questions and find these with same id
for (Question tq : trueQuestions) {
for (Question gq : guessQuestions) {
if (tq.getId() == gq.getId()) {
// if answers are different, than there is mistake
System.out.println("id match!");
if (!tq.getAnswer().equals(gq.getAnswer())) {
System.out.println("Wrong question!");
wrongQuestions.add(gq);
}
}
}
}
jsonWrongQuestions = wrongQuestions.toJSONArray();
jsonResult.put("test", t);
jsonResult.put("wrongQuestions", jsonWrongQuestions);
return jsonResult;
}
public JSONArray loadQuestionsByTest(JSONRPC2Request req, HttpServletRequest request)
throws Exception, JSONRPC2Error {
JSONArray jsonTestQuestions = new JSONArray();
// get testId
Map<String, Object> params = req.getNamedParams();
NamedParamsRetriever np = new NamedParamsRetriever(params);
Map<String, Object> tParams = np.getMap("test");
NamedParamsRetriever testNp = new NamedParamsRetriever(tParams);
int testId = testNp.getInt("id");
// get test questions
MySQLDAO dao = new MySQLDAO();
QuestionsList qByTest = dao.loadQuestionsByTest(testId);
// set result
jsonTestQuestions = qByTest.toJSONArray();
return jsonTestQuestions;
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// declare rpc objects
JSONRPC2Request req = null;
JSONRPC2Response resp = null;
try {
/*
* Had to change this, since after switching to the JS json-rpc lib
* the request has no params ("json=" in our case) and the whole payload is the request data itself
*/
StringBuffer jb = new StringBuffer();
String line = null;
// Getting the request reader in order to load the whole request date into a single string
BufferedReader reader = request.getReader();
while ((line = reader.readLine()) != null) jb.append(line);
// populate rpc objects
req = JSONRPC2Request.parse(jb.toString());
resp = new JSONRPC2Response(req.getID());
// define jsonResult
JSONObject jsonResult = new JSONObject();
// retrieve request information
String method = req.getMethod();
System.out.println(req.getMethod());
// find the requested method
if (method.equals("login")) {
// login user
jsonResult = loginUser(request, response, req);
System.out.println("json result: " + jsonResult.toString());
// resp.setResult(jsonResult.toJSONString());
resp.setResult(jsonResult);
} else if (method.equals("register")) {
// register user
// TODO duplicates!
jsonResult = registerUser(req, resp);
System.out.println("json result to string: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (isLoggedIn(request)) {
if (method.equals("logout")) {
// logout user
jsonResult = logoutUser(request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("loadAllQuestions")) {
// return all questions as QuestionsList
QuestionsList questions = QuestionController.loadAllQuestions();
if (questions != null) {
JSONObject jsonQuestions = new JSONObject();
JSONArray allQuestions = questions.toJSONArray();
jsonQuestions.put("allQuestions", allQuestions);
System.out.println("jsonQuestions: " + jsonQuestions.toString());
resp.setResult(jsonQuestions);
} else {
resp.setError(JSONRPC2Error.INTERNAL_ERROR);
}
} else if (method.equals("loadQuestion")) {
jsonResult = loadQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("addQuestion")) {
// add question
jsonResult = addQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("deleteQuestion")) {
// delete question
jsonResult = deleteQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("udpateQuestion")) {
// update question
jsonResult = updateQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("loadTestAndAllQuestions")) {
// return the test and all questions from the database
jsonResult = loadTestAndAllQuestions(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("loadAllTests")) {
// return all questions as QuestionsList
TestsList tests = TestController.loadAllTests();
if (tests != null) {
JSONObject jsonTests = new JSONObject();
JSONArray allTests = tests.toJSONArray();
jsonTests.put("allTests", allTests);
System.out.println("jsonTests: " + jsonTests.toString());
resp.setResult(jsonTests);
} else {
resp.setError(JSONRPC2Error.INTERNAL_ERROR);
}
} else if (method.equals("loadQuestionsByTest")) {
JSONArray testQuestions = new JSONArray();
testQuestions = loadQuestionsByTest(req, request);
jsonResult.put("testQuestions", testQuestions);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("addTest")) {
// add question
jsonResult = addTest(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("deleteTest")) {
// delete question
jsonResult = deleteTest(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("updateTest")) {
// update question
jsonResult = updateTest(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("addTestQuestion")) {
// bind question to test
jsonResult = addTestQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("removeTestQuestion")) {
// delete question from test
jsonResult = removeTestQuestion(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
} else if (method.equals("checkTest")) {
// check if test is asnwered correctly
jsonResult = checkTest(req, request);
System.out.println("json result: " + jsonResult.toString());
resp.setResult(jsonResult);
}
/*
JSONObject json = new JSONObject();
json.put("hi", "opa");
resp.setResult(json.toJSONString());
*/
}
} catch (Throwable t) {
JSONRPC2Error error = new JSONRPC2Error(1, t.getMessage());
resp.setError(error);
} finally {
// dispatch result
response.getWriter().print(resp.toJSONObject().toJSONString());
System.out.println("final result: " + resp.toJSONObject().toJSONString());
}
}
