private async Task Process <T>(WorkQueueItem item, CancellationToken cancellationToken)
where T : class
{
T payload = item.Payload.ToObject <T>().NotNull();
var processor = _Container.Resolve <IWorkQueueProcessor <T> >(IfUnresolved.ReturnDefaultIfNotRegistered);
if (processor == null)
{
_Logger.LogError($"work queue item '{item.Type}' has no processor, item faulted");
await _WorkQueueRepositoryManager.FaultedAsync(item);
return;
}
using (_Logger.LogScope(LogLevel.Verbose, $"processing work queue item '{item.Type}'"))
{
try
{
await processor.Process(payload, cancellationToken);
}
catch (TaskCanceledException)
{
await _WorkQueueRepositoryManager.EnqueueManyAsync(new[] { item });
throw;
}
catch (Exception ex)
{
_Logger.LogException(ex);
await _WorkQueueRepositoryManager.RetryAsync(item);
}
}
}
public async Task RetryAsync(WorkQueueItem item)
{
int retryCount = item.RetryCount + 1;
DateTime?whenToRetry = _RetryPolicy.WhenToRetry(retryCount);
if (whenToRetry == null)
{
_Logger.LogError($"work queue item '{item.Type}' retried too many times, item now faulted");
await FaultedAsync(item);
return;
}
await EnqueueManyAsync(new[] { new WorkQueueItem(item.Type, item.Payload, whenToRetry.Value, retryCount) });
}
public Task FaultedAsync(WorkQueueItem item) => GetEnabledRepository()?.FaultedAsync(item) ?? Task.CompletedTask;