public override void Execute(LongRunArgs <T> args)
{
LongRunInfo longRunInfo;
using (var unitOfWork = UnitOfWorkManager.Begin())
{
longRunInfo = LongRunInfoRepository.Get(args.LongRunInfoId);
if (longRunInfo.LongRunStatus != LongRunStatus.Queued)
{
return;
}
longRunInfo.LongRunStatus = LongRunStatus.InProcess;
longRunInfo.Abortable = Abortable;
unitOfWork.Complete();
}
LongRunStatus? result = null;
CancellationToken token;
if (Abortable)
{
token = CancellationWorker.AddOrGet(longRunInfo.Id);
}
else
{
token = default;
}
string error = null;
try
{
result = ExecuteRaw(args.Args, longRunInfo, token);
}
catch (Exception e)
{
error = e.ToString();
}
using (var unitOfWork = UnitOfWorkManager.Begin())
{
longRunInfo = LongRunInfoRepository.Get(longRunInfo.Id);
if (error != null)
{
longRunInfo.Error +=
string.IsNullOrEmpty(longRunInfo.Error)
? error
: Environment.NewLine + error;
}
if (result != null)
{
longRunInfo.LongRunStatus = result.Value;
}
unitOfWork.Complete();
}
CancellationWorker.Remove(longRunInfo.Id);
}
public async Task <LongRunResult> EnqueueLongRunAsync <TJob, TArgs>(TArgs args,
BackgroundJobPriority priority = BackgroundJobPriority.Normal, TimeSpan?delay = null)
where TJob : LongRunBackgroundJob <TArgs>
{
LongRunInfo longRunInfo;
string longRunId;
// i removed try catches for persisting.
// let it be handled by unit of work and thorwing exceptions
using (var unitOfWork = UnitOfWorkManager.Begin())
{
longRunId = _keyGenerator.Generate <string>();
longRunInfo = new LongRunInfo
{
Id = longRunId,
//todo: serializer? or json repo?
Args = JsonConvert.SerializeObject(args),
LongRunStatus = LongRunStatus.Queued,
Type = typeof(TJob).ToString(),
};
await _longRunInfoRepo.InsertAsync(longRunInfo);
await unitOfWork.CompleteAsync();
}
string jobId;
try
{
// try to queue job
var longRunArgs = new LongRunArgs <TArgs>
{
Args = args,
LongRunInfoId = longRunId
};
jobId = await EnqueueAsync <TJob, LongRunArgs <TArgs> >(longRunArgs, priority, delay);
}
catch (Exception e)
{
try
{
using (var unitOfWork = UnitOfWorkManager.Begin())
{
longRunInfo = await _longRunInfoRepo.GetAsync(longRunInfo.Id);
longRunInfo.LongRunStatus = LongRunStatus.QueueFailed;
longRunInfo.Error = e.ToString();
await unitOfWork.CompleteAsync();
}
}
catch (Exception)
{
//todo: additional handler?
}
throw;
}
try
{
using (var unitOfWork = UnitOfWorkManager.Begin())
{
longRunInfo = await _longRunInfoRepo.GetAsync(longRunInfo.Id);
longRunInfo.JobId = jobId;
await unitOfWork.CompleteAsync();
}
}
catch (Exception)
{
//todo: additional handler?
}
return(new LongRunResult
{
LongRunId = longRunId,
JobId = jobId
});
}
