/// <summary>
/// Метод, которое сплитит строку и возвращает результат выражения.
/// </summary>
/// <param name="expr"> Строка с ппримером. </param>
/// <returns></returns>
public double Calculate(string expr)
{
try
{
string[] problem = expr.Split(' ');
double a = double.Parse(problem[0].ToString());
double b = double.Parse(problem[2].ToString());
if (double.IsNaN(Math.Round(operations[problem[1]](a, b), 3)))
{
throw new Exception("Результат не является числом.");
}
else if (problem[1] == "/" && b == 0)
{
throw new Exception("Деление на 0.");
}
else if (!operations.ContainsKey(problem[1]))
{
throw new Exception("Некорректно введенная операция.");
}
return(operations[problem[1]](a, b));
}
catch (Exception ex)
{
// Вызов события. Можно вызвать без точки, но так безопаснее.
ErrorNotification?.Invoke(ex.Message);
throw ex;
}
}
/// <summary>
/// Method to add exercises to user tracker
/// </summary>
/// <param name="user">User to which you want to add exercise</param>
/// <param name="exercise">Exercise you want to add</param>
/// <param name="exerciseStart">Date when you have done exercise</param>
/// <param name="exerciseEnd">Date when you have finished exercise</param>
/// <param name="units">Specific unit of exercise (distance\times etc.)</param>
public void AddNewExercise(User user, Exercises exercise, DateTime exerciseStart, DateTime exerciseEnd, double units)
{
var statisticService = new StatisticService();
statisticService.StatusNotification += NotificationManager.SendStatusNotification;
statisticService.ErrorNotification += NotificationManager.SendErrorNotification;
switch (exercise)
{
case Exercises.PushUps:
var newPushUps = new PushUpSeries
{
Name = $"PushUps #{user.PushUps.Count + 1}",
ExerciseStart = exerciseStart,
ExerciseEnd = exerciseEnd,
ExerciseTimeSpan = exerciseEnd - exerciseStart,
Count = (int)units,
};
user.PushUps.Add(newPushUps);
StatusNotification?.Invoke($"Push Ups #{user.PushUps.Count} for user {user.Name} successfully added!");
user.AvaragePushUps = statisticService.GetAverageStatistic(user, exercise);
break;
case Exercises.Run:
var newRun = new Run
{
Name = $"Run #{user.Runs.Count + 1}",
ExerciseStart = exerciseStart,
ExerciseEnd = exerciseEnd,
ExerciseTimeSpan = exerciseEnd - exerciseStart,
Distance = units,
};
user.Runs.Add(newRun);
StatusNotification?.Invoke($"Run #{user.Runs.Count} for user {user.Name} successfully added!");
user.AvarageRunDistance = statisticService.GetAverageStatistic(user, exercise);
break;
case Exercises.Squats:
var newSquats = new SquatSeries
{
Name = $"Squats #{user.Squats.Count + 1}",
ExerciseStart = exerciseStart,
ExerciseEnd = exerciseEnd,
ExerciseTimeSpan = exerciseEnd - exerciseStart,
Count = (int)units,
};
user.Squats.Add(newSquats);
StatusNotification?.Invoke($"Squats #{user.Squats.Count} for user {user.Name} successfully added!");
user.AvarageSquats = statisticService.GetAverageStatistic(user, exercise);
break;
default:
ErrorNotification?.Invoke("No such Exercise!");
break;
}
user.AvarageExercisePulse = statisticService.GetPulsePerMinute(user, exercise);
}
private void HandleRead()
{
int readSize = Handle.UserSocket.Available;
readData = new byte[readSize];
try
{
int recvSize = Handle.Receive(readData, 0, readSize, SocketFlags.None);
}
catch (SocketException se)
{
log.Error(se, "Socket Exception Error.");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
ReadComplete();
}
/// <summary>
/// Method to get avarage statistic about User in exercises
/// </summary>
/// <param name="user">User whose avarage statistic you whant to get</param>
/// <returns></returns>
public double GetAverageStatistic(User user, Exercises exercise)
{
switch (exercise)
{
case Exercises.PushUps:
return(user.PushUps.Average(a => a.Count));
case Exercises.Run:
return(user.Runs.Average(a => a.Distance));
case Exercises.Squats:
return(user.Squats.Average(a => a.Count));
default:
ErrorNotification?.Invoke("No such exercise!");
return(-1);
}
}
private void HandleWrite()
{
if (writeData != null)
{
int writeSize = writeData.Length;
try
{
int sentSize = Handle.Send(writeData, 0, writeData.Length, SocketFlags.None);
}
catch (SocketException se)
{
log.Error(se, "Socket Exception Error.");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
WriteComplete();
}
}
private void OnTimerEvent(object sender, ElapsedEventArgs args)
{
if (writeData == null)
{
writeData = new byte[0];
log.Info("SockServiceHandler - Keep Alive message queued");
}
Timer tempTimer = sender as Timer;
lastReceivedTime += tempTimer.Interval;
if (lastReceivedTime > (2 * tempTimer.Interval))
{
var errorString = String.Format("Keep Alive packet not received within {0} ms. Connection closed as invalid.", lastReceivedTime);
log.Error(errorString);
ErrorNotification?.Invoke(this, new OutOfTimeException(errorString));
this.Dispose();
}
}
private void HandleRead()
{
try
{
using (MemoryStream ms = new MemoryStream())
{
// 1 byte buffer
// TODO: consider making this variable depending on encoding (currently will only work for UTF8)
// ALSO: consider situation of CRLF from unix systems
byte[] tempBuffer = new byte[1];
tempBuffer[0] = 0x00;
while (tempBuffer[0] != END_OF_LINE)
{
int recvBytes = Handle.Receive(tempBuffer, 0, 1, SocketFlags.None);
if (recvBytes == 0)
{
CloseEventNotification?.Invoke(this);
this.Dispose();
return;
}
ms.Write(tempBuffer, 0, 1);
}
readData = ms.ToArray();
ReadComplete();
}
}
catch (SocketException se)
{
if (se.ErrorCode == 10054)
{
// socket connection forcibly closed by remote peer
log.Error("Socket Exception Error 10054, socket connection was forcibly closed by the remote peer.");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
else
{
log.Error(se, "Socket Exception Error");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
}
}
/// <summary>
/// Сравнение значений с референсными из файла.
/// </summary>
/// <param name="path1"></param>
/// <param name="path2"></param>
/// <param name="path3"></param>
public static void Check(string path1, string path2, string path3)
{
string[] check = new string[0];
string[] answers = new string[0];
string output = string.Empty;
// Счетчик ошибок.
int errors = 0;
// Стандартное чтение.
try
{
check = File.ReadAllLines(path1);
answers = File.ReadAllLines(path2);
}
catch (UnauthorizedAccessException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (System.Security.SecurityException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (IOException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (Exception e)
{
ErrorNotification?.Invoke(e.Message);
}
// Сравнение длин массивов.
if (check.Length == answers.Length)
{
// Сравнение значений через жеппу (там какие-то проблемы с парсом "не числа").
for (int i = 0; i < check.Length; i++)
{
if (answers[i].Contains("число"))
{
if (check[i].Contains("число"))
{
output += "OK" + Environment.NewLine;
}
else
{
output += "Error" + Environment.NewLine;
errors++;
}
}
else
{
double res;
double chk;
if (double.TryParse(answers[i], out res) & double.TryParse(check[i], out chk))
{
if (res == chk)
{
output += "OK" + Environment.NewLine;
}
else
{
output += "Error" + Environment.NewLine;
errors++;
}
}
else
{
if (answers[i] == check[i])
{
output += "OK" + Environment.NewLine;
}
else
{
output += "Error" + Environment.NewLine;
errors++;
}
}
}
}
// Добавление в конец вывода количества ошибок.
output += errors;
try
{
File.WriteAllText(path3, output);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
else
{
Console.WriteLine($"Sizes do not match: answers size is {answers.Length}, check size is {check.Length}");
}
}
/// <summary>
/// Чтение выражений из файла, счет и запись результатов в другой файл.
/// </summary>
/// <param name="path1"></param>
/// <param name="path2"></param>
public static void ReadAndWrite(string path1, string path2)
{
string[] lines = new string[0];
string output = string.Empty;
// Стандартная дичь.
try
{
lines = File.ReadAllLines(path1);
}
catch (UnauthorizedAccessException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (System.Security.SecurityException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (IOException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (Exception e)
{
ErrorNotification?.Invoke(e.Message);
}
// Подсчет значений в строках.
for (int i = 0; i < lines.Length; i++)
{
try
{
output += $"{Calculate(lines[i]):F3}{Environment.NewLine}";
}
catch (Exception e)
{
ErrorNotification(e.Message);
}
}
// Стандартная запись в файл.
try
{
File.WriteAllText(path2, output);
}
catch (UnauthorizedAccessException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (System.Security.SecurityException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (IOException e)
{
ErrorNotification?.Invoke(e.Message);
}
catch (Exception e)
{
ErrorNotification?.Invoke(e.Message);
}
}
public void ErrorMessageTriger(string message)
{
ErrorNotification?.Invoke(message);
}
private void HandleRead()
{
try
{
if (!recvHeader)
{
byte[] headerData = new byte[HEADER_SIZE];
int headerSize = headerData.Length;
int headerLeftToRecv = headerSize;
int headerSizeRecv = 0;
while (headerSizeRecv != headerSize)
{
int recv = Handle.Receive(headerData, headerSizeRecv, headerLeftToRecv, SocketFlags.None);
// 0 value for recv means socket has closed from other end
if (recv != 0)
{
headerSizeRecv += recv;
headerLeftToRecv -= recv;
lastReceivedTime = 0;
}
else
{
CloseEventNotification?.Invoke(this);
this.Dispose();
return;
}
}
int headerDataValue = BitConverter.ToInt32(headerData, 0);
if (headerDataValue == 0)
{
// if received a keep alive packet, ignore and exit
log.Info("SockServiceHandler keep alive packet received.");
return;
}
else
{
readData = new byte[headerDataValue];
recvSize = headerDataValue;
leftToRecv = recvSize;
dataRecv = 0;
recvHeader = true;
}
}
else
{
int recv = Handle.Receive(readData, dataRecv, leftToRecv, SocketFlags.None);
if (recv == 0)
{
CloseEventNotification?.Invoke(this);
this.Dispose();
return;
}
dataRecv += recv;
leftToRecv -= recv;
if (dataRecv == recvSize)
{
ReadComplete();
}
}
}
catch (SocketException se)
{
if (se.ErrorCode == 10054)
{
// socket connection forcibly closed by remote peer
log.Error("Socket Exception Error 10054, socket connection was forcibly closed by the remote peer.");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
else
{
log.Error(se, "Socket Exception Error");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
}
}
private void HandleWrite()
{
if (writeData != null)
{
if (!sentHeader)
{
try
{
byte[] header = BitConverter.GetBytes(writeData.Length);
int headerSize = header.Length;
int headerSizeSent = 0;
int headerLeftToSend = headerSize;
while (headerSizeSent != headerSize)
{
int sent = Handle.Send(header, headerSizeSent, headerLeftToSend, System.Net.Sockets.SocketFlags.None);
headerSizeSent += sent;
headerLeftToSend -= sent;
}
ResetKeepAliveTimer();
if (writeData.Length > 0)
{
sendSize = writeData.Length;
leftToSend = sendSize;
dataSent = 0;
sentHeader = true;
}
else
{
// if writeDataLength is 0 it is a keep alive message so reset
writeData = null;
}
}
catch (SocketException se)
{
// deal with remote disconnection event. Raise a close event notification
log.Error(se, "Socket Exception Error");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
}
else
{
try
{
int sent = Handle.Send(writeData, dataSent, leftToSend, SocketFlags.None);
dataSent += sent;
leftToSend -= sent;
ResetKeepAliveTimer();
if (dataSent == sendSize)
{
WriteComplete();
}
}
catch (SocketException se)
{
// deal with remote disconnection event. Raise a close event notification
log.Error(se, "Socket Exception Error");
ErrorNotification?.Invoke(this, se);
this.Dispose();
}
}
}
}
