private void ProcessIfNoEventsOfCommand(ProcessingCommand processingCommand, int retryTimes)
{
var command = processingCommand.Message;
_ioHelper.TryAsyncActionRecursively("ProcessIfNoEventsOfCommand",
() => _eventStore.FindAsync(command.AggregateRootId, command.Id),
currentRetryTimes => ProcessIfNoEventsOfCommand(processingCommand, currentRetryTimes),
result =>
{
var existingEventStream = result.Data;
if (existingEventStream != null)
{
_eventService.PublishDomainEventAsync(processingCommand, existingEventStream);
}
else
{
CompleteCommand(processingCommand, CommandStatus.NothingChanged, typeof(string).FullName, processingCommand.CommandExecuteContext.GetResult());
}
},
() => string.Format("[commandId:{0}]", command.Id),
errorMessage =>
{
_logger.Fatal(string.Format("Find event by commandId has unknown exception, the code should not be run to here, errorMessage: {0}", errorMessage));
},
retryTimes, true);
}
private Task ProcessIfNoEventsOfCommand(ProcessingCommand processingCommand, int retryTimes, TaskCompletionSource <bool> taskSource)
{
var command = processingCommand.Message;
_ioHelper.TryAsyncActionRecursively("ProcessIfNoEventsOfCommand",
() => _eventStore.FindAsync(command.AggregateRootId, command.Id),
currentRetryTimes => ProcessIfNoEventsOfCommand(processingCommand, currentRetryTimes, taskSource),
async result =>
{
var existingEventStream = result;
if (existingEventStream != null)
{
_eventCommittingService.PublishDomainEventAsync(processingCommand, existingEventStream);
taskSource.SetResult(true);
}
else
{
await CompleteCommand(processingCommand, CommandStatus.NothingChanged, typeof(string).FullName, processingCommand.CommandExecuteContext.GetResult()).ConfigureAwait(false);
taskSource.SetResult(true);
}
},
() => string.Format("[commandId:{0}]", command.Id),
null,
retryTimes, true);
return(taskSource.Task);
}