public void MessageReceived(ConsumeResult <TKey, TValue> result)
{
if (delay > 0)
{
// this.consumer.Pause(this.consumer.Assignment); // tentativa mal sucessidada de evitar o problema de max.pull.ms que é menor que o tempo da task
logger.Log($"Start delay: {delay}ms ({DateTime.Now.ToString("HH:mm:ss")})");
DelayHelper.DelayMessage(result.Timestamp.UnixTimestampMs, delay, cancellationToken);
logger.Log($"Stop delay: {delay}ms ({DateTime.Now.ToString("HH:mm:ss")})");
// this.consumer.Resume(this.consumer.Assignment); // tentativa mal sucessidada de evitar o problema de max.pull.ms que é menor que o tempo da task
}
this.consumerClient.MessageReceived(result);
}
public void MessageReceived(ConsumeResult <TKey, TValue> result)
{
if (delay > 0)
{
// this.consumer.Pause(this.consumer.Assignment);
logger.Log($"Start delay: {delay}ms ({DateTime.Now.ToString("HH:mm:ss")})");
DelayHelper.DelayMessage(result.Timestamp.UnixTimestampMs, delay, cancellationToken);
logger.Log($"Stop delay: {delay}ms ({DateTime.Now.ToString("HH:mm:ss")})");
// this.consumer.Resume(this.consumer.Assignment);
}
this.Resend(result, this.redirectTopic);
this.consumerClient?.MessageReceived(result);
}
public Task Run(CancellationToken cancellationToken)
{
var groupId = this.config.GroupId;
return(Task.Run(() =>
{
if (cancellationToken != default)
{
// Garante que ao cancelar a task, ocorra o unsubscribe, do contrário,
// o cursor ficará preso na linha "c.Subscribe(...)" e o cancel() só terá efeito após retorno do kafka
// que pode demorar minutos até o próximo looping do while.
cancellationToken.Register(() =>
{
logger.Log($"Task cancelled (Unsubscribe): Topic: {topicName}, GroupId: {groupId}");
consumer.Unsubscribe();
});
}
logger.Log($"Subscribe: Topic: {topicName}, GroupId: {groupId}");
consumer.Subscribe(topicName);
// DUVIDA: Tenho duvidas passar o consumer real pro client faz sentido na prática.
consumerClient.Subscribed(consumer, cancellationToken);
while (!cancellationToken.IsCancellationRequested)
{
try
{
var consumed = consumer.Consume(cancellationToken);
try
{
if (CanProcess(consumed, groupId))
{
logger.Log($"Event start: {consumerClient.GetType().FullName}");
consumerClient.MessageReceived(consumed);
logger.Log($"Event end: {consumerClient.GetType().FullName}");
// DUVIDA: Seria interessante esse código aqui?
// if (!config.EnableAutoCommit.Value)
// {
// consumer.Commit();
// logger.LogDebug($"Message commited: Topic: {cr.Topic}, GroupId: {_groupId}, IsPartitionEOF: {cr.IsPartitionEOF}, Key: {cr.Key}, Offset: {cr.Offset}, Partition: {cr.Partition}, Timestamp: {cr.Timestamp}");
// }
}
}
catch (Exception e)
{
logger.Log($"Error occured: {e.Message}");
consumerClient.MessageReceivedExceptionOcurred(consumed, e);
}
}
catch (ConsumeException e)
{
logger.Log($"Error occured: {e.Message}");
consumerClient.ConsumeExceptionOcurred(e);
}
catch (OperationCanceledException e)
{
logger.Log($"Error occured: {e.Message}");
consumer.Close();
}
}
}, cancellationToken));
}
