public async Task <ApplicationCommandResult <TPayload> > ExecuteCommandAsync <TPayload>(IApplicationCommand command,
ApplicationCommandReplySchemes replyScheme = ApplicationCommandReplySchemes.OnDomainCommandHandled,
CancellationToken token = default)
{
PreConditions.NotNull(command, nameof(command));
await PublishAsync(command, replyScheme, token);
var promise = new ApplicationCommandExecutionPromise <TPayload>(command);
_commandResultListener.AddExecutingPromise(promise);
return(await promise.Future.ConfigureAwait(false));
}
public void AddExecutingPromise <TPayload>(ApplicationCommandExecutionPromise <TPayload> promise)
{
var command = promise.ApplicationCommand;
if (ExecutingPromiseDict.TryAdd(command.Id, promise))
{
var delay = _commandOptions.ExecutionOptions.TimeOutInSeconds;
_timer.NewTimeout(new ActionTimerTask(it => CancelApplicationCommand(promise, delay)), TimeSpan.FromSeconds(delay));
}
else
{
_logger.LogWarning($"The application command registered，Id:{command.Id}, Type:{command.GetType().FullName}, ReplyScheme:{command.ReplyScheme}.");
}
}
private void CancelApplicationCommand(ApplicationCommandExecutionPromise promise, int delay)
{
var command = promise.ApplicationCommand;
var commandId = command.Id;
var commandType = command.GetType().FullName;
if (!ExecutingPromiseDict.TryRemove(commandId, out var executionPromise))
{
_logger.LogTrace($"Over execution timeout upper limit: {delay} seconds, Cancelling application Command, Id:{commandId}, Type:{commandType}, but task source does not exist.");
return;
}
var replyScheme = command.ReplyScheme;
var result = ApplicationCommandResult.TimeOuted(commandId, commandType, "The execution of application command timeout, please try again.");
_logger.LogWarning(executionPromise.TrySetResult(result)
? $"Over execution timeout upper limit: {delay} seconds, cancelled application Command, Id:{commandId}, Type:{commandType}, ReplyScheme:{replyScheme}."
: $"Over execution timeout upper limit: {delay} seconds, Failed to cancel application Command, Id:{commandId}, Type:{commandType}, ReplyScheme:{replyScheme}.");
}
