@Override
public OperationResult run(Connection conn) throws SQLException {
// First, find the user
User user = Queries.getUser(conn, spec.getUsername(), this);
if (user == null) {
return new OperationResult(false, "Unknown user " + spec.getUsername());
}
// Create the CourseRegistration
CourseRegistration reg = new CourseRegistration();
reg.setUserId(user.getId());
reg.setCourseId(spec.getCourseId());
reg.setRegistrationType(spec.getRegistrationType());
reg.setSection(spec.getSection());
// Insert the CourseRegistration
DBUtil.storeModelObject(conn, reg);
Course course = null;
try {
course = DBUtil.loadModelObjectForId(conn, Course.SCHEMA, spec.getCourseId());
} catch (NoSuchUniqueIdException e) {
logger.error("Could not find course for id={}", spec.getCourseId());
}
return new OperationResult(
true,
"Added user "
+ spec.getUsername()
+ " to course"
+ (course != null ? " " + course.getNameAndTitle() : ""));
}
@Override
public void load(final Runnable onSuccess, final ICallback<Pair<String, Throwable>> onFailure) {
final Integer userId =
pageParams.getInt(PageObjectParamNameMap.getInstance().get(UserSelection.class));
if (userId == null) {
onFailure.call(new Pair<String, Throwable>("No user id specified", null));
return;
}
// Special case: if the requested user id is the logged-in user's id,
// then we succeed trivially. (A user can always access his/her
// own information, such as a submission history.)
User loggedInUser = session.get(User.class);
if (loggedInUser.getId() == userId.intValue()) {
GWT.log("User self-selection");
UserSelection userSelection = new UserSelection();
userSelection.setUser(loggedInUser);
session.add(userSelection);
onSuccess.run();
return;
}
// General case: a user is being selected among all users in the course.
// Users registered in the course should already have been loaded
User[] regUserList = session.get(User[].class);
// Check to see if the user is registered in the course
for (User userInCourse : regUserList) {
if (userInCourse.getId() == userId.intValue()) {
// Huzzah!
UserSelection userSelection = new UserSelection();
userSelection.setUser(userInCourse);
session.add(userSelection);
onSuccess.run();
return;
}
}
// User is not registered in course
onFailure.call(
new Pair<String, Throwable>("User " + userId + " is not registered in the course", null));
}
@Override
public void submit(int problemId, String programText)
throws CloudCoderAuthenticationException, SubmissionException {
// Make sure that client is authenticated and has permission to edit the given problem
User user = ServletUtil.checkClientIsAuthenticated(getThreadLocalRequest());
HttpSession session = getThreadLocalRequest().getSession();
// The Problem should be stored in the user's session
Problem problem = (Problem) session.getAttribute(SessionAttributeKeys.PROBLEM_KEY);
if (problem == null || problem.getProblemId() != problemId) {
throw new CloudCoderAuthenticationException();
}
// Insert a full-text change into the database.
Change fullTextChange =
new Change(
ChangeType.FULL_TEXT,
0,
0,
0,
0,
System.currentTimeMillis(),
user.getId(),
problem.getProblemId(),
programText);
Database.getInstance().storeChanges(new Change[] {fullTextChange});
// Get test cases. (TODO: cache them?)
List<TestCase> testCaseList = Database.getInstance().getTestCasesForProblem(problemId);
ISubmitService submitService = DefaultSubmitService.getInstance();
logger.info("Passing submission to submit service...");
IFutureSubmissionResult future = submitService.submitAsync(problem, testCaseList, programText);
// Put the full-text Change and IFutureSubmissionResult in the user's session.
addSessionObjects(session, fullTextChange, future);
}
@Override
public Boolean run(Connection conn) throws SQLException {
PreparedStatement stmt =
prepareStatement(
conn,
"update cc_quizzes as q"
+ " join cc_course_registrations as cr on cr.course_id = q.course_id"
+ " and cr.section = q.section"
+ " and cr.user_id = ?"
+ " and q.problem_id = ?"
+ " and q.section = ?"
+ " and q.course_id = ?"
+ " set end_time = ?");
stmt.setInt(1, user.getId());
stmt.setInt(2, quiz.getProblemId());
stmt.setInt(3, quiz.getSection());
stmt.setInt(4, quiz.getCourseId());
long currentTime = System.currentTimeMillis();
stmt.setLong(5, currentTime);
int updateCount = stmt.executeUpdate();
return updateCount > 0;
}