/** Connect the vector of QV's into the main View */
public void installQVs() {
Exam thisExam = theTD.curX;
Vector qv = thisExam.getListData();
for (int i = 0; i < qv.size(); i++) {
// Use question number (1-origin) as string name.
// System.out.println("Add question " +i +" to " + questionsPanel);
questionsPanel.add(Integer.toString(i + 1), new QView((Q) qv.elementAt(i)));
}
myCardLayout.first(questionsPanel);
}
/**
* Compute conflicts -- there is a conflict if the other variable is assigned and {@link
* ExamDistributionConstraint#check(ExamPlacement, ExamPlacement)} is false
*/
@Override
public void computeConflicts(ExamPlacement givenPlacement, Set<ExamPlacement> conflicts) {
boolean before = true;
for (Exam exam : variables()) {
if (exam.equals(givenPlacement.variable())) {
before = false;
continue;
}
ExamPlacement placement = exam.getAssignment();
if (placement == null) continue;
if (!check(before ? placement : givenPlacement, before ? givenPlacement : placement))
conflicts.add(placement);
}
}
/**
* Create a new object of type cls from a resultset row starting from a specified offset. This is
* done so that you can select other rows than just those needed for this object. You may for
* example want to create two objects from the same row.
*
* @throws TorqueException Any exceptions caught during processing will be rethrown wrapped into a
* TorqueException.
*/
public static Exam row2Object(Record row, int offset, Class cls) throws TorqueException {
try {
Exam obj = (Exam) cls.newInstance();
ExamPeer.populateObject(row, offset, obj);
obj.setModified(false);
obj.setNew(false);
return obj;
} catch (InstantiationException e) {
throw new TorqueException(e);
} catch (IllegalAccessException e) {
throw new TorqueException(e);
}
}
/**
* Check for conflict -- there is a conflict if the other variable is assigned and {@link
* ExamDistributionConstraint#check(ExamPlacement, ExamPlacement)} is false
*/
@Override
public boolean inConflict(ExamPlacement givenPlacement) {
boolean before = true;
for (Exam exam : variables()) {
if (exam.equals(givenPlacement.variable())) {
before = false;
continue;
}
ExamPlacement placement = exam.getAssignment();
if (placement == null) continue;
if (!check(before ? placement : givenPlacement, before ? givenPlacement : placement))
return true;
}
return false;
}
/**
* Approve Exam.
*
* @param examId
* @return
*/
public boolean approveExam(String examId) {
// Upon Approved, Generate Time Slots
Exam examToApproved = examDao.findByExamId(examId);
List<TestingCenterTimeSlots> timeSlots = generateTimeSlots(examToApproved);
tctsDao.insertTimeSlots(timeSlots);
examToApproved.setStatusType(ExamStatusType.APROVED);
if (examDao.updateExam(examToApproved)) {
return true;
} else {
return false;
}
}
// Schedule an Exam
public boolean addExam(Exam newExam, String userId) {
ExamType examType = newExam.getExamType();
boolean result = true;
if (examType.equals(ExamType.REGULAR)) {
// If Regular Exam
result = examDao.addExam(newExam);
// If
} else {
result = adhocExamDao.addAdhocExam((AdhocExam) newExam);
}
if (result) {
User user = userDao.getUserById(userId);
String emailAddress = user.getEmail();
try {
emailService.sendEmail(
StringResources.EMAIL_HOST,
StringResources.EMAIL_PORT,
StringResources.EMAIL_LOGIN,
StringResources.EMAIL_PASSWORD,
emailAddress,
"Exam Request Notification",
"You successfully send a exam request");
} catch (MessagingException e) {
// Do nothing
}
}
return result;
}
public void editExam(Exam exam) {
for (int i = 0; i < exams.size(); i++) {
if (exams.get(i).getId() == exam.getId()) {
exams.set(i, exam);
}
}
}
/** Build a Criteria object from the data object for this peer */
public static Criteria buildCriteria(Exam obj) {
Criteria criteria = new Criteria(DATABASE_NAME);
if (!obj.isNew()) criteria.add(EXAM_ID, obj.getExamId());
criteria.add(TITLE, obj.getTitle());
criteria.add(TIME_OF_EXAM, obj.getTimeOfExam());
criteria.add(UPLOADED_BY, obj.getUploadedBy());
criteria.add(DATE_UPLOADED, obj.getDateUploaded());
criteria.add(INSTRUCTIONS, obj.getInstructions());
return criteria;
}
public int getAwardLevel() {
int passingExams = 0;
double examAverage = 0;
for (Exam exam : exams) {
examAverage += exam.getGrade();
if (exam.getGrade() >= 3) {
passingExams++;
}
}
examAverage = examAverage / exams.size();
if (passingExams == 3) {
return 1;
} else if (passingExams > 3 && examAverage < 3.25) {
return 1;
} else if (passingExams == 4) {
return 2;
} else if (passingExams == 5) {
return 3;
} else {
return 0;
}
}
/**
* Populates an object from a resultset row starting from a specified offset. This is done so that
* you can select other rows than just those needed for this object. You may for example want to
* create two objects from the same row.
*
* @throws TorqueException Any exceptions caught during processing will be rethrown wrapped into a
* TorqueException.
*/
public static void populateObject(Record row, int offset, Exam obj) throws TorqueException {
try {
obj.setExamId(row.getValue(offset + 0).asInt());
obj.setTitle(row.getValue(offset + 1).asString());
obj.setTimeOfExam(row.getValue(offset + 2).asUtilDate());
obj.setUploadedBy(row.getValue(offset + 3).asString());
obj.setDateUploaded(row.getValue(offset + 4).asUtilDate());
obj.setInstructions(row.getValue(offset + 5).asString());
} catch (DataSetException e) {
throw new TorqueException(e);
}
}
public static void m2(Exam exam) {
exam.w();
}
/**
* Method to do update. This method is to be used during a transaction, otherwise use the
* doUpdate(Exam) method. It will take care of the connection details internally.
*
* @param obj the data object to update in the database.
* @param con the connection to use
* @throws TorqueException Any exceptions caught during processing will be rethrown wrapped into a
* TorqueException.
*/
public static void doUpdate(Exam obj, Connection con) throws TorqueException {
doUpdate(buildCriteria(obj), con);
obj.setModified(false);
}
/**
* Method to do inserts. This method is to be used during a transaction, otherwise use the
* doInsert(Exam) method. It will take care of the connection details internally.
*
* @param obj the data object to insert into the database.
* @param con the connection to use
* @throws TorqueException Any exceptions caught during processing will be rethrown wrapped into a
* TorqueException.
*/
public static void doInsert(Exam obj, Connection con) throws TorqueException {
obj.setPrimaryKey(doInsert(buildCriteria(obj), con));
obj.setNew(false);
obj.setModified(false);
}
// Calculate How many time
public List<TestingCenterTimeSlots> generateTimeSlots(Exam exam) {
TestingCenterInfo tci = tcr.findByTerm(tcr.getCurrentTerm().getTermId());
int gap = tci.getGap();
int examDuration = exam.getDuration();
int openMinutes = (int) ChronoUnit.MINUTES.between(tci.getOpen(), tci.getClose());
// Ensure time chunk devides 30
int timeChuck =
(examDuration + gap) % 30 == 0 ? examDuration : 30 * ((examDuration + gap) / 30 + 1);
LocalTime endTime = exam.getEndDateTime().toLocalTime();
LocalTime beginTime = exam.getStartDateTime().toLocalTime();
LocalTime openTime = tci.getOpen();
LocalTime closeTime = tci.getClose();
LocalDate beginDate = exam.getStartDateTime().toLocalDate();
LocalDate endDate = exam.getEndDateTime().toLocalDate();
beginTime = adjustTime(beginTime); // Exam Begin Time
endTime = adjustTime(endTime); // Exam End Time
// Calculate Duration According to different day.
int startDayDuration = (int) ChronoUnit.MINUTES.between(beginTime, closeTime);
int dayLast = (int) ChronoUnit.DAYS.between(beginDate, endDate) - 1;
int endDayDuration = (int) ChronoUnit.MINUTES.between(openTime, endTime);
int startDayChucks = startDayDuration / timeChuck;
int endDayChucks = endDayDuration / timeChuck;
int regularDayChuncks = dayLast >= 0 ? (dayLast * openMinutes) / timeChuck : 0;
int dailyChuncks = openMinutes / timeChuck;
LocalDate dateCursor = beginDate;
LocalTime timeCursor = beginTime;
List<TestingCenterTimeSlots> timeSlotses = new ArrayList<>();
if (startDayChucks > 0) {
for (int i = 0; i < startDayChucks; i++) {
LocalDateTime slotsBegin = dateCursor.atTime(timeCursor);
LocalDateTime slotsEnd = dateCursor.atTime(timeCursor.plusMinutes(examDuration));
TestingCenterTimeSlots t =
new TestingCenterTimeSlots(
exam.getExamId(),
slotsBegin,
slotsEnd,
tci.getNumSeats(),
tci.getNumSetAsideSeats());
timeSlotses.add(t);
timeCursor = timeCursor.plusMinutes(timeChuck);
}
}
if (regularDayChuncks > 0) {
for (int i = 0; i < dayLast; i++) {
dateCursor = dateCursor.plusDays(1);
timeCursor = adjustTime(openTime);
for (int j = 0; j < dailyChuncks; j++) {
LocalDateTime slotsBegin = dateCursor.atTime(timeCursor);
LocalDateTime slotsEnd = dateCursor.atTime(timeCursor.plusMinutes(examDuration));
TestingCenterTimeSlots t =
new TestingCenterTimeSlots(
exam.getExamId(),
slotsBegin,
slotsEnd,
tci.getNumSeats(),
tci.getNumSetAsideSeats());
timeSlotses.add(t);
timeCursor = timeCursor.plusMinutes(timeChuck);
}
}
}
if (endDayChucks > 0) {
dateCursor = dateCursor.plusDays(1);
timeCursor = adjustTime(openTime);
for (int i = 0; i < endDayChucks; i++) {
LocalDateTime slotsBegin = dateCursor.atTime(timeCursor);
LocalDateTime slotsEnd = dateCursor.atTime(timeCursor.plusMinutes(examDuration));
TestingCenterTimeSlots t =
new TestingCenterTimeSlots(
exam.getExamId(),
slotsBegin,
slotsEnd,
tci.getNumSeats(),
tci.getNumSetAsideSeats());
timeSlotses.add(t);
timeCursor = timeCursor.plusMinutes(timeChuck);
}
}
return timeSlotses;
}
public static Exam getNewExam(boolean random) {
return Exam.createExam(random, selectedDao);
}
public static Exam getNewExam(String name) {
return Exam.createExam(name, selectedDao);
}
public static ArrayList<IExam> getExamList() {
return Exam.getExams();
}
/**
* Return true if this is hard constraint or this is a soft constraint without any violation
*
* @param p exam assignment to be made
*/
public boolean isSatisfied(ExamPlacement p) {
if (isHard()) return true;
switch (getType()) {
case sDistPrecedence:
ExamPeriod last = null;
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
if (last == null || last.getIndex() < placement.getPeriod().getIndex())
last = placement.getPeriod();
else return false;
}
return true;
case sDistPrecedenceRev:
last = null;
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
if (last == null || last.getIndex() > placement.getPeriod().getIndex())
last = placement.getPeriod();
else return false;
}
return true;
case sDistSamePeriod:
ExamPeriod period = null;
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
if (period == null) period = placement.getPeriod();
else if (period.getIndex() != placement.getPeriod().getIndex()) return false;
}
return true;
case sDistDifferentPeriod:
HashSet<ExamPeriod> periods = new HashSet<ExamPeriod>();
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
if (!periods.add(placement.getPeriod())) return false;
}
return true;
case sDistSameRoom:
Set<ExamRoomPlacement> rooms = null;
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
if (rooms == null) rooms = placement.getRoomPlacements();
else if (!rooms.containsAll(placement.getRoomPlacements())
|| !placement.getRoomPlacements().containsAll(rooms)) return false;
}
return true;
case sDistDifferentRoom:
HashSet<ExamRoomPlacement> allRooms = new HashSet<ExamRoomPlacement>();
for (Exam exam : variables()) {
ExamPlacement placement =
(p != null && exam.equals(p.variable()) ? p : exam.getAssignment());
if (placement == null) continue;
for (ExamRoomPlacement room : placement.getRoomPlacements()) {
if (!allRooms.add(room)) return false;
}
}
return true;
default:
return false;
}
}
