private void OnReceived(Object sender, BasicDeliverEventArgs e)
{
try
{
var message = _rabbitMqMessageFactory.Create(e);
var eventMetadata = new EventMetadata(message.Headers.ToDictionary(kv => kv.Key, kv => Encoding.UTF8.GetString((Byte[])kv.Value)));
var eventDefinition = _applicationDefinition.Events.GetDefinition(eventMetadata.EventName, eventMetadata.EventVersion);
if (eventDefinition == null)
{
_channel.BasicAck(e.DeliveryTag, false);
return;
}
var aggregateEvent = (IAggregateEvent)JsonConvert.DeserializeObject(message.Message, eventDefinition.Type);
var domainEvent = _domainEventFactory.Create(aggregateEvent, eventMetadata);
_domainEventBus.Publish(domainEvent);
}
catch
{
if (_connection.IsOpen)
{
_channel.BasicNack(e.DeliveryTag, false, false);
}
}
if (_connection.IsOpen)
{
_channel.BasicAck(e.DeliveryTag, false);
}
}
public async Task Publish(IDomainEvent domainEvent)
{
var connection = await GetConnection();
using (var channel = connection.CreateModel())
{
await Initialize(channel);
var message = _rabbitMqMessageFactory.Create(domainEvent);
var properties = channel.CreateBasicProperties();
properties.Headers = message.Headers.ToDictionary(kv => kv.Key, kv => kv.Value);
properties.Timestamp = new AmqpTimestamp(DateTimeOffset.Now.ToUnixTime());
properties.ContentEncoding = "utf-8";
properties.ContentType = "application/json";
properties.MessageId = message.MessageId;
channel.ConfirmSelect();
channel.BasicPublish(_configuration.ExchangeName, "", false, properties, Encoding.UTF8.GetBytes(message.Message));
channel.WaitForConfirms();
}
}