public KafkaMessageBus(MessageBusSettings settings, KafkaMessageBusSettings kafkaSettings)
: base(settings)
{
AssertSettings(settings);
KafkaSettings = kafkaSettings;
Log.Info("Creating producer");
_producer = CreateProducer();
Log.InfoFormat("Producer has been assigned name: {0}", _producer.Name);
Log.Info("Creating subscribers");
foreach (var subscribersByGroup in settings.Consumers.GroupBy(x => x.Group))
{
var group = subscribersByGroup.Key;
foreach (var subscribersByMessageType in subscribersByGroup.GroupBy(x => x.MessageType))
{
var messageType = subscribersByMessageType.Key;
Log.InfoFormat("Creating consumer for topics {0}, group {1}, message type {2}", string.Join(",", subscribersByMessageType.Select(x => x.Topic)), group, messageType);
var consumer = new KafkaGroupConsumer(this, group, messageType, subscribersByMessageType.ToList());
_groupConsumers.Add(consumer);
}
}
if (settings.RequestResponse != null)
{
Log.InfoFormat("Creating response consumer for topic {0} and group {1}", settings.RequestResponse.Group, settings.RequestResponse.Topic);
_groupConsumers.Add(new KafkaResponseConsumer(this, settings.RequestResponse));
}
}
public TopicConsumerInstances(ConsumerSettings settings, KafkaGroupConsumer groupConsumer, KafkaMessageBus messageBus)
{
_settings = settings;
_messageBus = messageBus;
_groupConsumer = groupConsumer;
_consumerInstanceOnHandleMethod = settings.ConsumerType.GetMethod("OnHandle", new[] { groupConsumer.MessageType, typeof(string) });
_consumerInstances = ResolveInstances(settings, messageBus);
_consumerQueue = new BufferBlock <object>();
_consumerInstances.ForEach(x => _consumerQueue.Post(x));
if (_settings.ConsumerMode == ConsumerMode.RequestResponse)
{
var taskType = typeof(Task <>).MakeGenericType(_settings.ResponseType);
_taskResult = taskType.GetProperty("Result");
}
}