public async Task <VesselUpdateModel> GetVesselUpdatesAsync(VesselAisUpdateModel aisUpdateModel, CancellationToken token, SemaphoreSlim semaphoreThrottel)
{
VesselUpdateModel vessel = null;
try
{
bool skip = false;
if (aisUpdateModel.Mmsi == 0) //if could not be scrapped with "full"
{
skip = true;
_progress.AddSkipped();
}
await semaphoreThrottel.WaitAsync();
if (!skip)
{
vessel = _scrapper.ScrapSingleVessel(aisUpdateModel.Mmsi, aisUpdateModel.Imo);
vessel.VesselId = aisUpdateModel.VesselId;
if (vessel.IMO != aisUpdateModel.Imo)
{
throw new Exception("Received vessel imo differs from the one passed.");
}
while (_progress.GetIsUpdatingDatabase() || _progress.GetIsUpdatingPaused())
{
await Task.Delay(100);
}
_progress.AddToReturnedResultsQuantity();
}
}
catch (Exception ex)
{
_progress.SetLastError(ex.Message);
_progress.AddFailedRequest();
vessel = null;
}
finally
{
while (_progress.GetIsUpdatingDatabase() || _progress.GetIsUpdatingPaused())
{
await Task.Delay(100);
}
semaphoreThrottel.Release();
}
return(vessel);
}
public bool PauseUpdating()
{
if (_progress.GetIsUpdatingStarted())
{
if (_progress.GetIsUpdatingPaused())
{
_progress.SetUpdatingUnpaused();
}
else
{
_progress.SetUpdatingPaused();
}
return(true);
}
else
{
return(false);
}
}
