Exemple #1
0
        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);
        }