private bool WasProposedSlotAccepted(ReservationSlot proposedSlot)
{
Console.WriteLine("[Calling] WasProposedSlotAccepted");
bool result = true;
foreach (KeyValuePair<int, ReservationMessage> responses in threadResponses) {
Console.WriteLine("Thread " + responses.Key);
foreach (KeyValuePair<String, String> answers in responses.Value.GetAllProposedSlotResponses()) {
if (answers.Value.Equals("Nak")) {
result = false;
break;
}
}
if (!result)
break;
}
return result;
}
public ReservationMessage ProposeSlot(ReservationSlot slot, ReservationMessage reservation, int timeout)
{
Console.WriteLine("[Calling] ProposeSlot");
lock (User.userLoger)
{
User.userLoger.IncrementNumberOfExchangedMessages("ProposeSlot");
}
Console.WriteLine("Timeout to send message: " + timeout);
if (User.connected == false) {
Console.WriteLine("I am not connected. Do not answer call");
Thread.Sleep(2 * timeout);
return new ReservationMessage();
}
bool isDisseminating = IsDisseminating("PROPOSE"); ;
List<Reservation> rsvList = User.ReservationPerSlot[slot.GetNumber()].GetReservations();
Console.WriteLine("Proposed slot: " + slot.GetNumber());
ReservationMessage response = new ReservationMessage();
response.senderName = User.Name;
if (rsvList.Count == 1) {
Console.WriteLine("Slot Found! Send Ack");
if (!response.GetAllProposedSlotResponses().ContainsKey(response.senderName))
response.AddProposedSlotResponse(User.Name, "Ack");
}
else {
bool isNak = false;
foreach (Reservation r in rsvList) {
if (r.areEqual(reservation.reservation))
continue;
//exists a reservation for this slot whose ticket number is lower
if (r.getTicket() < reservation.reservation.getTicket()) {
Console.WriteLine("A reservation with a lower ticket number was found! It has higher priority! Send Nak");
if (!response.GetAllProposedSlotResponses().ContainsKey(response.senderName)) {
response.AddProposedSlotResponse(response.senderName, "Nak");
isNak = true;
}
//return "Nak";
}
}
if (!isNak) {
if (!response.GetAllProposedSlotResponses().ContainsKey(response.senderName))
response.AddProposedSlotResponse(response.senderName, "Ack");
}
}
if (isDisseminating)
return response;
int lenght = 2;
if (Thread.CurrentThread.Name == null) {
Console.WriteLine("Thread Name is null. Original remote invocation thread");
}
else {
String tName = Thread.CurrentThread.Name;
Console.WriteLine("Thread Name: " + tName);
char[] separator = { ' ' };
String[] words = tName.Split(separator);
lenght = words.Length;
}
//Calls the gossip dissemination protocol to send the message to other nodes
//Before sending the message we need to remove the user that sent the message
int userListSize = reservation.reservation.getUserList().Count;
double userListDouble = (double)userListSize;
double messageCounterDouble = (double)reservation.messageCounter;
if ((messageCounterDouble <= (userListDouble / 2)) && (userListSize != 1)) {
if (Thread.CurrentThread.Name == null || lenght == 2) {
Console.WriteLine("Disseminate!");
reservation.reservation = DeleteSenderFromUserList(reservation);
reservation.messageCounter *= 2;
Console.WriteLine("Thread responses size: " + threadResponses.Count);
DisseminateInformation(reservation, MessageTypeToDisseminate.PROPOSE_SLOT, true);
//add received answers to the answer we will send
foreach (KeyValuePair<int, ReservationMessage> responses in threadResponses) {
Console.WriteLine("Thread " + responses.Key + " responses");
foreach (KeyValuePair<String, String> x in responses.Value.GetAllProposedSlotResponses()) {
}
Console.WriteLine(responses.Value.PrintSlotResponses());
//only adds the response if it does not exist
if (!response.GetAllProposedSlotResponses().ContainsKey(responses.Value.senderName))
response.AddProposedSlotResponse(responses.Value.senderName, responses.Value.GetProposedSlotResponseByUser(responses.Value.senderName));
}
}
else Console.WriteLine("Thread has no permission to disseminate!");
}
Console.WriteLine("Printing answer");
foreach (KeyValuePair<String, String> i in response.GetAllProposedSlotResponses()) {
Console.WriteLine("User " + i.Key + " response: " + i.Value);
}
return response;
}
private ReservationMessage CreateMessageWithProposedSlot(Reservation reservation, ReservationSlot proposedSlot)
{
Console.WriteLine("[Calling] CreateMessageWithProposedSlot\nSlot: " + proposedSlot.GetNumber());
ReservationMessage messageWithProposedSlot = new ReservationMessage();
messageWithProposedSlot.reservation = reservation;
messageWithProposedSlot.proposedSlot = proposedSlot;
return messageWithProposedSlot;
}
