public async Task <ActionResult <PoeLeagueModel> > GetDefaultLeague(string leagueName)
{
if (leagueName == DEFAULT_LEAGUE_NAME)
{
var defaultLeague = await leagueService.GetDefaultLeague();
if (defaultLeague == null)
{
return(NotFound());
}
else
{
return(defaultLeague);
}
}
else
{
var league = await PoeContext.Leagues.Where(x => x.LeagueId == leagueName).FirstOrDefaultAsync();
if (league == null)
{
return(NotFound());
}
else
{
return(league);
}
}
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
_logger.LogInformation($"Is starting.");
// web server start first
Thread.Yield();
var taskCancelSources = new Dictionary <Task, CancellationTokenSource> {
};
stoppingToken.Register(() =>
{
_logger.LogInformation($"Background task is stopping.");
_logger.LogInformation("Stopping children background tasks.");
foreach (var canlSource in taskCancelSources.Values)
{
canlSource.Cancel();
}
});
try
{
async Task fetchAndUpsertLeaguesLoop(CancellationToken stoppingToken, PoeLeagueModel waitLeague = null)
{
stoppingToken.Register(() =>
{
_logger.LogInformation("Stopping fetchAndUpsertLeaguesLoop task");
});
while (!stoppingToken.IsCancellationRequested)
{
int defaultDelayTime = 60000 * 60 * 2; // 2hr
if (waitLeague == null)
{
await Task.Delay(defaultDelayTime, stoppingToken);
}
else
{
if (waitLeague.EndAt == null)
{
await Task.Delay(defaultDelayTime, stoppingToken);
}
else
{
var now = System.DateTime.UtcNow;
if (waitLeague.EndAt.Value > now)
{
System.TimeSpan delayTimeSpan = waitLeague.EndAt.Value.Subtract(System.DateTime.UtcNow);
await Task.Delay(delayTimeSpan, stoppingToken);
}
else
{
await Task.Delay(defaultDelayTime, stoppingToken);
}
}
}
await FetchAndUpsertLeagues();
}
}
await FetchAndUpsertLeagues();
async Task fetchAndUpsertCharactersLoop(CancellationToken stoppingToken, string targetLeagueName)
{
int defaultDelayTime = 60000 * 10; // 10 min
stoppingToken.Register(() =>
{
_logger.LogInformation($"Stopping {targetLeagueName} fetchAndUpsertCharactersLoop task");
});
while (!stoppingToken.IsCancellationRequested)
{
await FetchAndUpsertCharacters(stoppingToken, targetLeagueName);
await Task.Delay(defaultDelayTime, stoppingToken);
}
}
var tasks = new List <Task> {
};
PoeLeagueModel defaultLeague = await leagueService.GetDefaultLeague();
if (defaultLeague != null)
{
var leagueCancelSource = new CancellationTokenSource();
Task leaguesLoop = fetchAndUpsertLeaguesLoop(leagueCancelSource.Token, defaultLeague);
tasks.Add(leaguesLoop);
taskCancelSources.Add(leaguesLoop, leagueCancelSource);
var characterCancelSource = new CancellationTokenSource();
Task charactersLoop = fetchAndUpsertCharactersLoop(characterCancelSource.Token, defaultLeague.LeagueId);
tasks.Add(charactersLoop);
taskCancelSources.Add(charactersLoop, characterCancelSource);
}
else
{
_logger.LogError("Not found default league!!!");
}
// you can add other leagues
await Task.WhenAll(tasks.ToArray());
}
catch (System.Exception e)
{
_logger.LogError(e.ToString());
}
finally
{
foreach (var canlSource in taskCancelSources.Values)
{
canlSource.Dispose();
}
}
}