/// <summary>
/// To be connected to SimulationFinished-Event. Extracts data and logs it in the database
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private void OnSimulationFinished(object sender, SimulationFinishedEventArgs args)
{
SimulationData simulationData = new SimulationData();
simulationData.ExecutionTime = args.ExecutionTime;
using (var hospitalContext = new HospitalContext())
{
var deadPatients = (from patient in hospitalContext.Patients
where patient.Status == PatientStatus.Afterlife
select patient).Count();
var recoveredPatients = (from patient in hospitalContext.Patients
where patient.Status == PatientStatus.Recovered
select patient).Count();
var timeSpentInQueue = (from patient in hospitalContext.Patients
select patient.TimeSpentInQueue).ToList();
simulationData.AmountOfDeadPatients = deadPatients;
simulationData.AmountOfRecoveredPatients = recoveredPatients;
simulationData.AverageTimeSpentInQueue = CalculateAverageTimeSpan(timeSpentInQueue);
hospitalContext.SimulationData.Add(simulationData);
hospitalContext.SaveChanges();
//Empties out the patients and doctors-tables after finished simulation
hospitalContext.Database.ExecuteSqlCommand("TRUNCATE TABLE Patients");
hospitalContext.Database.ExecuteSqlCommand("TRUNCATE TABLE Doctors");
hospitalContext.SaveChanges();
}
string toWrite = $"All patients has left the hospital. This simulation took {args.ExecutionTime.TotalSeconds:0} seconds.\n" +
"---------------------------------------------\n\n";
File.AppendAllText(fileName, toWrite);
Console.Write(toWrite);
}
/// <summary>
/// Starts one run of Simulation. Throws SimulationFinished-event when finished
/// </summary>
public void Start()
{
SimulationFinishedEventArgs args = new SimulationFinishedEventArgs();
Generator generator = new Generator();
Thread thread1 = new Thread(generator.AddNewPatientsToDatabase);
Thread thread2 = new Thread(SimulatePatientSorting);
Thread thread3 = new Thread(SimulateSymptomsChanging);
Thread thread4 = new Thread(SimulatePatientRecoveringOrDying);
Thread thread5 = new Thread(generator.AddNewDoctorsToDatabase);
Thread thread6 = new Thread(SimulateDoctorMovement);
//Thread-prio for the threads creating patient and doctor-data
thread1.Priority = ThreadPriority.Highest;
thread5.Priority = ThreadPriority.Highest;
thread1.Start();
thread5.Start();
thread2.Start();
thread3.Start();
thread4.Start();
thread6.Start();
//First, wait for thread4 to run to end, which will indicate the end
thread4.Join();
//Then thread 2 and 3, so that they can print a last time before ending the simulation
thread2.Join();
thread3.Join();
//thread 6 needs to end before completed, if there are doctors left without patients
if (thread6.IsAlive)
{
runDoctorMovement = false;
thread6.Join();
}
args.SetExecutionTime();
//In order for all threads to finish before invoking SimulationFinished
Thread.Sleep(3000);
SimulationFinished?.Invoke(this, args);
}
