@Override
public void writeObject(ObjectOutput output, XSubpart object) throws IOException {
object.writeExternal(output);
}
public List<EnrollmentRequest> check(
OnlineSectioningServer server, OnlineSectioningHelper helper) {
XStudent student = server.getStudent(getStudentId());
if (student == null) throw new SectioningException(MSG.exceptionBadStudentId());
List<EnrollmentRequest> requests = new ArrayList<EnrollmentRequest>();
Hashtable<Long, EnrollmentRequest> courseId2request = new Hashtable<Long, EnrollmentRequest>();
Hashtable<Long, XOffering> courseId2offering = new Hashtable<Long, XOffering>();
for (ClassAssignmentInterface.ClassAssignment ca : getAssignment()) {
// Skip free times and dummy sections
if (ca == null || ca.isFreeTime() || ca.getClassId() == null || ca.isDummy()) continue;
XCourse course = server.getCourse(ca.getCourseId());
if (course == null)
throw new SectioningException(
MSG.exceptionCourseDoesNotExist(MSG.courseName(ca.getSubject(), ca.getClassNumber())));
XOffering offering = server.getOffering(course.getOfferingId());
if (offering == null)
throw new SectioningException(
MSG.exceptionCourseDoesNotExist(MSG.courseName(ca.getSubject(), ca.getClassNumber())));
// Check section limits
XSection section = offering.getSection(ca.getClassId());
if (section == null)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.clazz(ca.getSubject(), ca.getCourseNbr(), ca.getSubpart(), ca.getSection())));
// Check cancelled flag
if (section.isCancelled()) {
if (server.getConfig().getPropertyBoolean("Enrollment.CanKeepCancelledClass", false)) {
boolean contains = false;
for (XRequest r : student.getRequests())
if (r instanceof XCourseRequest) {
XCourseRequest cr = (XCourseRequest) r;
if (cr.getEnrollment() != null
&& cr.getEnrollment().getSectionIds().contains(section.getSectionId())) {
contains = true;
break;
}
}
if (!contains)
throw new SectioningException(
MSG.exceptionEnrollCancelled(
MSG.clazz(
ca.getSubject(), ca.getCourseNbr(), ca.getSubpart(), ca.getSection())));
} else {
throw new SectioningException(
MSG.exceptionEnrollCancelled(
MSG.clazz(ca.getSubject(), ca.getCourseNbr(), ca.getSubpart(), ca.getSection())));
}
}
EnrollmentRequest request = courseId2request.get(ca.getCourseId());
if (request == null) {
request = new EnrollmentRequest(course, new ArrayList<XSection>());
courseId2request.put(ca.getCourseId(), request);
requests.add(request);
}
request.getSections().add(section);
courseId2offering.put(course.getCourseId(), offering);
}
// Check for NEW and CHANGE deadlines
check:
for (EnrollmentRequest request : requests) {
XCourse course = request.getCourse();
List<XSection> sections = request.getSections();
for (XRequest r : student.getRequests()) {
if (r instanceof XCourseRequest) {
XEnrollment enrollment = ((XCourseRequest) r).getEnrollment();
if (enrollment != null
&& enrollment.getCourseId().equals(course.getCourseId())) { // course change
for (XSection s : sections)
if (!enrollment.getSectionIds().contains(s.getSectionId())
&& !server.checkDeadline(
course.getCourseId(), s.getTime(), OnlineSectioningServer.Deadline.CHANGE))
throw new SectioningException(
MSG.exceptionEnrollDeadlineChange(
MSG.clazz(
course.getSubjectArea(),
course.getCourseNumber(),
s.getSubpartName(),
s.getName(course.getCourseId()))));
continue check;
}
}
}
// new course
for (XSection section : sections) {
if (!server.checkDeadline(
course.getOfferingId(), section.getTime(), OnlineSectioningServer.Deadline.NEW))
throw new SectioningException(
MSG.exceptionEnrollDeadlineNew(
MSG.clazz(
course.getSubjectArea(),
course.getCourseNumber(),
section.getSubpartName(),
section.getName(course.getCourseId()))));
}
}
// Check for DROP deadlines
for (XRequest r : student.getRequests()) {
if (r instanceof XCourseRequest) {
XEnrollment enrollment = ((XCourseRequest) r).getEnrollment();
if (enrollment != null && !courseId2offering.containsKey(enrollment.getCourseId())) {
XOffering offering = server.getOffering(enrollment.getOfferingId());
if (offering != null)
for (XSection section : offering.getSections(enrollment)) {
if (!server.checkDeadline(
offering.getOfferingId(),
section.getTime(),
OnlineSectioningServer.Deadline.DROP))
throw new SectioningException(
MSG.exceptionEnrollDeadlineDrop(enrollment.getCourseName()));
}
}
}
}
Hashtable<Long, XConfig> courseId2config = new Hashtable<Long, XConfig>();
for (EnrollmentRequest request : requests) {
XCourse course = request.getCourse();
XOffering offering = courseId2offering.get(course.getCourseId());
XEnrollments enrollments = server.getEnrollments(course.getOfferingId());
List<XSection> sections = request.getSections();
XSubpart subpart = offering.getSubpart(sections.get(0).getSubpartId());
XConfig config = offering.getConfig(subpart.getConfigId());
courseId2config.put(course.getCourseId(), config);
XReservation reservation = null;
reservations:
for (XReservation r : offering.getReservations()) {
if (!r.isApplicable(student)) continue;
if (r.getLimit() >= 0
&& r.getLimit() <= enrollments.countEnrollmentsForReservation(r.getReservationId())) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForReservation(r.getReservationId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain) continue;
}
if (!r.getConfigsIds().isEmpty() && !r.getConfigsIds().contains(config.getConfigId()))
continue;
for (XSection section : sections)
if (r.getSectionIds(section.getSubpartId()) != null
&& !r.getSectionIds(section.getSubpartId()).contains(section.getSectionId()))
continue reservations;
if (reservation == null || r.compareTo(reservation) < 0) reservation = r;
}
if (reservation == null || !reservation.canAssignOverLimit()) {
for (XSection section : sections) {
if (section.getLimit() >= 0
&& section.getLimit()
<= enrollments.countEnrollmentsForSection(section.getSectionId())) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForSection(section.getSectionId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.clazz(
course.getSubjectArea(),
course.getCourseNumber(),
section.getSubpartName(),
section.getName())));
}
if ((reservation == null
|| !offering.getSectionReservations(section.getSectionId()).contains(reservation))
&& offering.getUnreservedSectionSpace(section.getSectionId(), enrollments) <= 0) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForSection(section.getSectionId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.clazz(
course.getSubjectArea(),
course.getCourseNumber(),
section.getSubpartName(),
section.getName())));
}
}
if (config.getLimit() >= 0
&& config.getLimit() <= enrollments.countEnrollmentsForConfig(config.getConfigId())) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForConfig(config.getConfigId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber()))
+ " "
+ config.getName());
}
if ((reservation == null
|| !offering.getConfigReservations(config.getConfigId()).contains(reservation))
&& offering.getUnreservedConfigSpace(config.getConfigId(), enrollments) <= 0) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForConfig(config.getConfigId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber()))
+ " "
+ config.getName());
}
if (course.getLimit() >= 0
&& course.getLimit() <= enrollments.countEnrollmentsForCourse(course.getCourseId())) {
boolean contain = false;
for (XEnrollment e : enrollments.getEnrollmentsForCourse(course.getCourseId()))
if (e.getStudentId().equals(student.getStudentId())) {
contain = true;
break;
}
if (!contain)
throw new SectioningException(
MSG.exceptionEnrollNotAvailable(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
}
}
for (EnrollmentRequest request : requests) {
XCourse course = request.getCourse();
XOffering offering = courseId2offering.get(course.getCourseId());
List<XSection> sections = request.getSections();
XSubpart subpart = offering.getSubpart(sections.get(0).getSubpartId());
XConfig config = offering.getConfig(subpart.getConfigId());
if (sections.size() < config.getSubparts().size()) {
throw new SectioningException(
MSG.exceptionEnrollmentIncomplete(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
} else if (sections.size() > config.getSubparts().size()) {
throw new SectioningException(
MSG.exceptionEnrollmentInvalid(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
for (XSection s1 : sections) {
for (XSection s2 : sections) {
if (s1.getSectionId() < s2.getSectionId()
&& s1.isOverlapping(offering.getDistributions(), s2)) {
throw new SectioningException(
MSG.exceptionEnrollmentOverlapping(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
if (!s1.getSectionId().equals(s2.getSectionId())
&& s1.getSubpartId().equals(s2.getSubpartId())) {
throw new SectioningException(
MSG.exceptionEnrollmentInvalid(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
}
if (!offering.getSubpart(s1.getSubpartId()).getConfigId().equals(config.getConfigId())) {
throw new SectioningException(
MSG.exceptionEnrollmentInvalid(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
}
if (!offering.isAllowOverlap(student, config.getConfigId(), sections))
for (EnrollmentRequest otherRequest : requests) {
XOffering other = courseId2offering.get(otherRequest.getCourse().getCourseId());
XConfig otherConfig = courseId2config.get(otherRequest.getCourse().getCourseId());
if (!other.equals(offering)
&& !other.isAllowOverlap(
student, otherConfig.getConfigId(), otherRequest.getSections())) {
List<XSection> assignment = otherRequest.getSections();
for (XSection section : sections)
if (section.isOverlapping(offering.getDistributions(), assignment))
throw new SectioningException(
MSG.exceptionEnrollmentConflicting(
MSG.courseName(course.getSubjectArea(), course.getCourseNumber())));
}
}
}
return requests;
}