@Override
public Object provide(Object source, Object currentValue) {
final ExecutionYear currentYear = ExecutionYear.readCurrentExecutionYear();
final ExecutionYear previousYear = currentYear.getPreviousExecutionYear();
final List<ExecutionSemester> executionSemesters = new ArrayList<ExecutionSemester>();
SpecialSeasonStudentEnrollmentBean bean = (SpecialSeasonStudentEnrollmentBean) source;
if (bean.getScp()
.getDegreeCurricularPlan()
.hasOpenSpecialSeasonEnrolmentPeriod(currentYear.getLastExecutionPeriod())) {
executionSemesters.add(currentYear.getLastExecutionPeriod());
}
if (bean.getScp()
.getDegreeCurricularPlan()
.hasOpenSpecialSeasonEnrolmentPeriod(currentYear.getFirstExecutionPeriod())) {
executionSemesters.add(currentYear.getFirstExecutionPeriod());
}
if (bean.getScp()
.getDegreeCurricularPlan()
.hasOpenSpecialSeasonEnrolmentPeriod(previousYear.getLastExecutionPeriod())) {
executionSemesters.add(previousYear.getLastExecutionPeriod());
}
if (bean.getScp()
.getDegreeCurricularPlan()
.hasOpenSpecialSeasonEnrolmentPeriod(previousYear.getFirstExecutionPeriod())) {
executionSemesters.add(previousYear.getFirstExecutionPeriod());
}
Collections.sort(executionSemesters, ExecutionSemester.COMPARATOR_BY_SEMESTER_AND_YEAR);
Collections.reverse(executionSemesters);
return executionSemesters;
}
public static ExecutionYear getExecutionYearFourYearsBack(final ExecutionYear executionYear) {
ExecutionYear executionYearFourYearsBack = executionYear;
if (executionYear != null) {
for (int i = 5; i > 1; i--) {
final ExecutionYear previousExecutionYear =
executionYearFourYearsBack.getPreviousExecutionYear();
if (previousExecutionYear != null) {
executionYearFourYearsBack = previousExecutionYear;
}
}
}
return executionYearFourYearsBack;
}