private void loadXML()
{
try
{
XmlTextReader reader = new XmlTextReader("data.xml");
string groupRecord = "";
Event eventToAdd = new Event();
List<string> eventGroups = new List<string>();
Gene fixedEventGene = new Gene();
Room roomToAdd = new Room();
string feDay = "";
string feTime = "";
while (reader.Read())
{
reader.MoveToContent();
// groups
string text = reader.Name.ToString();
if (text == "GroupYear")
groupRecord += reader.ReadString();
else if (text == "GroupName")
groupRecord += reader.ReadString();
else if (text == "GroupDescription")
{
groupRecord += " - " + reader.ReadString();
groups.Add(groupRecord);
groupRecord = "";
}
// events
else if (text == "CourseCode")
{
eventToAdd = new Event();
eventToAdd.setCourse(reader.ReadString());
}
else if (text == "Activity")
eventToAdd.setActivity(reader.ReadString());
else if (text == "Duration")
eventToAdd.setDuration(Int32.Parse(reader.ReadString()));
else if (text == "Weekly")
{
eventToAdd.setWeekly(Boolean.Parse(reader.ReadString()));
eventGroups = new List<string>();
}
else if (text == "EventGroup")
eventGroups.Add(reader.ReadString());
else if (text == "EventRoomSize")
{
eventToAdd.setGroups(eventGroups);
eventToAdd.setRoomSize(reader.ReadString());
events.Add(eventToAdd);
}
// fixed events
else if (text == "FEDay")
{
fixedEventGene = new Gene();
feDay = reader.ReadString();
fixedEventGene.setCannotChange(true);
}
else if (text == "FETime")
feTime = reader.ReadString();
else if (text == "FEWeek")
{
fixedEventGene.setSlot(Genetic_Algorithms.Program.findSlot(getDayNum(feDay),
Int32.Parse(feTime),
reader.ReadString()));
}
else if (text == "FEDuration")
fixedEventGene.getEvent().setDuration(Int32.Parse(reader.ReadString()));
else if (text == "FECourseCode")
fixedEventGene.getEvent().setCourse(reader.ReadString());
else if (text == "FEActivity")
{
fixedEventGene.getEvent().setActivity(reader.ReadString());
eventGroups = new List<string>();
}
else if (text == "FEGroup")
eventGroups.Add(reader.ReadString());
else if (text == "FERoom")
{
fixedEventGene.getEvent().setGroups(eventGroups);
fixedEventGene.getRoom()._name = reader.ReadString();
fixedEventGene.getRoom()._size = "";
fixedEventGene.getRoom()._type = "";
fixedEvents.Add(fixedEventGene);
}
// rooms
else if (text == "RoomName")
{
roomToAdd = new Room();
roomToAdd._name = reader.ReadString();
}
else if (text == "RoomSize")
roomToAdd._size = reader.ReadString();
else if (text == "RoomType")
{
roomToAdd._type = reader.ReadString();
rooms.Add(roomToAdd);
}
// courses
else if (text == "CourseName")
courses.Add(reader.ReadString());
// external rooms
else if (text == "ExternalRoomName")
externalRooms.Add(reader.ReadString());
}
}
catch (Exception exp)
{
Console.WriteLine(exp);
}
}
private void bookSlots(Slot s, Gene g)
{
if (g.getEvent().getWeekly() && s.getWeek() == "B")
s = getCorrespondingSlot(s);
for (int i = 0; i < g.getEvent().getDuration(); i++)
{
int slotIndex = Program.slots.IndexOf(s);
slotIndex += i;
s = Program.slots[slotIndex];
chromosome.Add(new Gene(s, g.getEvent(), g.getRoom(), g.getCannotChange()));
slotIndex = Program.slots.IndexOf(s);
slotIndex++;
if (slotIndex < Program.slots.Count)
s = Program.slots[slotIndex];
if (g.getEvent().getWeekly())
chromosome.Add(new Gene(s, g.getEvent(), g.getRoom(), g.getCannotChange()));
}
}
public bool scheduleEventFromList(Slot s, Gene g)
{
if (!hasEventBeenScheduled(g.getEvent()))
{
bool clashes = doClashesExist(s, g.getEvent(), g.getRoom());
if (!clashes && g.getEvent().getWeekly())
clashes = doClashesExist(getCorrespondingSlot(s), g.getEvent(), g.getRoom());
if (!clashes && enoughTimeInDay(s, g.getEvent()))
{
bookSlots(s, g);
return true;
}
else
return false;
}
return true;
}
public void scheduleUnscheduableEvents(Slot s)
{
Slot originalSlot = s;
for (int i = unscheduableEvents.Count; i > 0; i--)
{
s = originalSlot;
if (hasEventBeenScheduled(unscheduableEvents[i - 1]))
unscheduableEvents.Remove(unscheduableEvents[i - 1]);
else
{
if (enoughTimeInDay(s, unscheduableEvents[i - 1]))
{
List<Room> possibleRooms = findAvailableRooms(unscheduableEvents[i - 1].getRoomSize(),
unscheduableEvents[i - 1].getActivity());
bool stop = false;
int j = 0;
while ((j < possibleRooms.Count) && (!stop))
{
bool clashes = doClashesExist(s, unscheduableEvents[i - 1], possibleRooms[j]);
if (!clashes && unscheduableEvents[i-1].getWeekly())
clashes = doClashesExist(getCorrespondingSlot(s), unscheduableEvents[i-1], possibleRooms[j]);
if (!clashes)
{
stop = true;
Gene aGene = new Gene(s, unscheduableEvents[i-1], possibleRooms[j], unscheduableEvents[i-1].getWeekly());
bookSlots(s, aGene);
}
j++;
}
}
}
}
}
public void scheduleEvent(Event e)
{
/* Choose a random slot to attempt to schedule this event in */
Slot selectedSlot = Program.slots[random.Next(Program.slots.Count)];
if (e.getWeekly() && selectedSlot.getWeek() == "B")
selectedSlot = getCorrespondingSlot(selectedSlot);
List<Room> availableRooms = findAvailableRooms(e.getRoomSize(), e.getActivity());
Room selectedRoom = null;
bool scheduable = false;
/* If there is enough time remaining in the day to schedule this event
* at this slot, try to find a room that is available and does not cause
* a clash */
if (enoughTimeInDay(selectedSlot, e))
{
int i = 0;
while ((i < availableRooms.Count) && (!scheduable))
{
selectedRoom = availableRooms[i];
bool clashes = doClashesExist(selectedSlot, e, selectedRoom);
if (!clashes && e.getWeekly())
clashes = doClashesExist(getCorrespondingSlot(selectedSlot), e, selectedRoom);
if (!clashes)
scheduable = true;
i++;
}
}
/* if this random slot is not feasible then go from this slot + 1 to the end of the
* slots list trying to schedule this event in each slot */
if (!scheduable)
{
int selectedSlotIndex = Program.slots.IndexOf(selectedSlot);
int i = selectedSlotIndex + 2;
while ((i < Program.slots.Count) && (!scheduable))
{
selectedSlot = Program.slots[i];
if (enoughTimeInDay(selectedSlot, e))
{
int j = 0;
while ((j < availableRooms.Count) && (!scheduable))
{
selectedRoom = availableRooms[j];
bool clashes = doClashesExist(selectedSlot, e, selectedRoom);
if (!clashes && e.getWeekly())
clashes = doClashesExist(getCorrespondingSlot(selectedSlot), e, selectedRoom);
if (!clashes)
scheduable = true;
j++;
}
}
i += 2;
}
/* go from the beginning of the slots to the slot that was initially chosen - 1
* only if a slot hasn't been found */
if (!scheduable)
{
i = 0;
while ((i < selectedSlotIndex) && (!scheduable))
{
selectedSlot = Program.slots[i];
if (enoughTimeInDay(selectedSlot, e))
{
int j = 0;
while ((j < availableRooms.Count) && (!scheduable))
{
selectedRoom = availableRooms[j];
bool clashes = doClashesExist(selectedSlot, e, selectedRoom);
if (!clashes && e.getWeekly())
clashes = doClashesExist(getCorrespondingSlot(selectedSlot), e, selectedRoom);
if (!clashes)
scheduable = true;
j++;
}
}
i += 2;
}
}
}
if (scheduable)
{
Gene aGene = new Gene(selectedSlot, e, selectedRoom, false);
bookSlots(selectedSlot, aGene);
}
else
unscheduableEvents.Add(e);
}