@Override
  public Set<User> getMembers() {
    Set<User> users = new HashSet<User>();

    Set<Degree> degrees = new HashSet<>();
    for (CompetenceCourse competenceCourse : executionCourse.getCompetenceCourses()) {
      for (CurricularCourse curricularCourse :
          competenceCourse.getAssociatedCurricularCoursesSet()) {
        degrees.add(curricularCourse.getDegree());
      }
    }
    // students of any degree sharing the same competence of the given execution course
    for (Degree degree : degrees) {
      for (Registration registration : degree.getActiveRegistrations()) {
        User user = registration.getPerson().getUser();
        if (user != null) {
          users.add(user);
        }
      }
    }
    // students attending the given execution course (most will be in the previous case but some may
    // not)
    for (Attends attends : executionCourse.getAttendsSet()) {
      User user = attends.getRegistration().getPerson().getUser();
      if (user != null) {
        users.add(user);
      }
    }
    return users;
  }
  /**
   * Checks if person belongs to deparment on a specified execution year. The unit path format
   * should be: IST.<DepartmentAcronym>
   *
   * <p>Accepted roles: STUDENT, TEACHER and EMPLOYEE
   *
   * @param person
   * @param groupCheckQuery
   * @return
   * @throws ExcepcaoPersistencia
   * @throws FenixServiceException
   */
  private static Boolean checkDepartmentGroup(Person person, GroupCheckQuery groupCheckQuery)
      throws NonExistingServiceException {

    final String[] unitAcronyms = groupCheckQuery.unitFullPath.split("\\.");
    if (!groupCheckQuery.roleType.equals("TEACHER")
        && !groupCheckQuery.roleType.equals("STUDENT")
        && !groupCheckQuery.roleType.equals("EMPLOYEE")) {
      throw new NonExistingServiceException();
    }

    if (groupCheckQuery.roleType.equals("TEACHER")) {
      return TeacherGroup.get(getDepartment(unitAcronyms), getExecutionYear(groupCheckQuery.year))
          .isMember(person.getUser());
    } else if (groupCheckQuery.roleType.equals("EMPLOYEE")) {
      if (person != null && person.getEmployee() != null) {
        final Department lastDepartmentWorkingPlace =
            person
                .getEmployee()
                .getLastDepartmentWorkingPlace(
                    getExecutionYear(groupCheckQuery.year).getBeginDateYearMonthDay(),
                    getExecutionYear(groupCheckQuery.year).getEndDateYearMonthDay());
        return (lastDepartmentWorkingPlace != null
            && lastDepartmentWorkingPlace.equals(getDepartment(unitAcronyms)));
      }
      return false;
    } else {
      if (person != null && person.getStudent() != null) {
        for (final Registration registration : person.getStudent().getRegistrationsSet()) {
          for (final Enrolment enrolment :
              registration
                  .getLastStudentCurricularPlan()
                  .getEnrolmentsByExecutionYear(getExecutionYear(groupCheckQuery.year))) {
            if (enrolment.getCurricularCourse().getCompetenceCourse() != null) {
              final CompetenceCourse competenceCourse =
                  enrolment.getCurricularCourse().getCompetenceCourse();
              if (competenceCourse.getDepartmentsSet().contains(getDepartment(unitAcronyms))) {
                return true;
              }

              if (competenceCourse.hasDepartmentUnit()
                  && competenceCourse.getDepartmentUnit().getDepartment()
                      == getDepartment(unitAcronyms)) {
                return true;
              }
            }
          }
        }
      }
      return false;
    }
  }
  public List<DegreeCourseStatisticsDTO> run(
      CompetenceCourse competenceCourse, ExecutionSemester executionSemester)
      throws FenixServiceException {
    Map<Degree, List<CurricularCourse>> groupedCourses =
        competenceCourse.getAssociatedCurricularCoursesGroupedByDegree();

    List<DegreeCourseStatisticsDTO> results = new ArrayList<DegreeCourseStatisticsDTO>();

    for (Degree degree : groupedCourses.keySet()) {
      List<Enrolment> enrollments = new ArrayList<Enrolment>();
      List<CurricularCourse> curricularCourses = groupedCourses.get(degree);

      for (CurricularCourse curricularCourse : curricularCourses) {
        enrollments.addAll(curricularCourse.getActiveEnrollments(executionSemester));
      }

      DegreeCourseStatisticsDTO degreeCourseStatistics = new DegreeCourseStatisticsDTO();
      degreeCourseStatistics.setExternalId(degree.getExternalId());
      degreeCourseStatistics.setName(degree.getSigla());
      createCourseStatistics(degreeCourseStatistics, enrollments);

      results.add(degreeCourseStatistics);
    }

    return results;
  }
 private void load(final DegreeModule degreeModule) {
   degreeModule.getName();
   if (degreeModule.isCourseGroup()) {
     final CourseGroup courseGroup = (CourseGroup) degreeModule;
     for (final org.fenixedu.academic.domain.degreeStructure.Context context :
         courseGroup.getChildContextsSet()) {
       final DegreeModule child = context.getChildDegreeModule();
       load(child);
     }
   } else {
     final CurricularCourse curricularCourse = (CurricularCourse) degreeModule;
     final CompetenceCourse competenceCourse = curricularCourse.getCompetenceCourse();
     if (competenceCourse != null) {
       competenceCourse.getName();
     }
   }
 }
 public Comparable<?> getKey(org.fenixedu.academic.domain.CompetenceCourse value) {
   return value.getOid();
 }