public void StartReoccuringTask()
{
if (_tokenSource != null && !_tokenSource.IsCancellationRequested)
{
// previous task was *NOT* cancelled so we just go home here
Logger.Debug("Attempted to start a second task but that was supressed (misuse and such)");
return;
}
Logger.Info("Starting Reoccuring task");
_tokenSource = new CancellationTokenSource();
_tokenSource.Token.ThrowIfCancellationRequested();
Task.Run(async() =>
{
while (!_tokenSource.IsCancellationRequested)
{
Logger.Debug("Attempting to download and insert player statistics");
CncGeneralInfo info = await GatherData();
if (info != null)
{
InsertData(info);
}
Thread.Sleep(1000 * 60);
}
}, _tokenSource.Token);
}
private void InsertData(CncGeneralInfo info)
{
_oldPlayerCount = _ra3Users.Count;
lstView.Dispatcher.Invoke(() =>
{
var newEntries = info.Ra3.Users.Values.Except(_ra3Users);
var oldEntries = _ra3Users.Except(info.Ra3.Users.Values);
foreach (var newEntry in newEntries)
{
AddSorted(_ra3Users, newEntry);
}
foreach (var o in oldEntries.ToList())
{
_ra3Users.Remove(o);
}
});
lstView.Dispatcher.Invoke(() =>
{
if (_oldPlayerCount != _ra3Users.Count)
{
lblPlayers.Content = $"Players: {_ra3Users.Count}";
}
});
}
private async Task <CncGeneralInfo> GatherData()
{
try
{
WebRequest req = WebRequest.CreateHttp(Constants.CncOnlinePlayerInfo);
var res = await req.GetResponseAsync();
HttpWebResponse response = (HttpWebResponse)res;
if (response.StatusCode != HttpStatusCode.OK)
{
Logger.Error($"ER.. Could not get a proper status. Status Code was ${response.StatusCode}");
return(null);
}
CncGeneralInfo info = new CncGeneralInfo();
using (Stream streamResponse = response.GetResponseStream())
using (StreamReader sr =
new StreamReader(streamResponse ?? throw new InvalidOperationException("streamResponse was null")))
{
string body = await sr.ReadToEndAsync();
info = JsonConvert.DeserializeObject <CncGeneralInfo>(body);
}
return(info);
}
catch (SecurityException err)
{
Logger.Error($"ER.. Could not connect to Server due to permission issues. err: {err.Message}");
}
catch (ProtocolViolationException err)
{
Logger.Error($"ER.. Could not get any response stream. err: {err.Message}");
}
catch (InvalidOperationException err)
{
Logger.Error($"ER.. Seems like the responsestream was null for some reason. err: {err.Message}");
}
catch (Exception err)
{
Logger.Fatal($"ER.. Seems like something unexpected happened. err: {err.Message}");
}
return(null);
}