public Integer getStudentNumberForShiftDistributionBasedOn(Integer studentNumberPosition) {
final List<Integer> abstractStudentNumbers = new ArrayList<Integer>();
for (final ShiftDistributionEntry shiftDistributionEntry : getShiftDistributionEntriesSet()) {
if (!abstractStudentNumbers.contains(shiftDistributionEntry.getAbstractStudentNumber())) {
abstractStudentNumbers.add(shiftDistributionEntry.getAbstractStudentNumber());
}
}
Collections.sort(abstractStudentNumbers);
return !abstractStudentNumbers.isEmpty()
? abstractStudentNumbers.get(studentNumberPosition)
: null;
}
private List<ShiftDistributionEntry> getShiftsFor(
Integer studentNumber, boolean alreadyDistributed) {
final List<ShiftDistributionEntry> result = new ArrayList<ShiftDistributionEntry>();
for (final ShiftDistributionEntry shiftDistributionEntry : getShiftDistributionEntriesSet()) {
if (shiftDistributionEntry.getDistributed().booleanValue() == alreadyDistributed
&& shiftDistributionEntry.getAbstractStudentNumber().equals(studentNumber)) {
result.add(shiftDistributionEntry);
}
}
return result;
}
public List<ShiftDistributionEntry> getNextFreeShiftDistributions() {
final ArrayList<ShiftDistributionEntry> entries =
new ArrayList<ShiftDistributionEntry>(getShiftDistributionEntriesSet());
Collections.sort(entries, ShiftDistributionEntry.NUMBER_COMPARATOR);
for (final ShiftDistributionEntry shiftDistributionEntry : entries) {
if (!shiftDistributionEntry.getDistributed()) {
return ShiftDistributionEntry.readByAbstractNumber(
shiftDistributionEntry.getAbstractStudentNumber(), getExecutionYear());
}
}
return Collections.emptyList();
}
