public void ConsumeMessages(string queue, ushort prefetchCount = 10)
{
var channel = _config.Channel();
DeclareQueue(channel, queue);
channel.BasicQos(prefetchSize: 0, prefetchCount: prefetchCount, global: false);
var scope = _serviceProvider.CreateScope();
var consumer = new EventingBasicConsumer(channel);
consumer.Received += async(model, ea) =>
{
var body = ea.Body;
var message = Encoding.UTF8.GetString(body);
var @event = this._deserializer.Deserialize(message);
object subscriber = DomainEventSubscribers.ContainsKey(queue)
? DomainEventSubscribers[queue]
: SubscribeFor(queue, scope);
try
{
await((IDomainEventSubscriberBase)subscriber).On(@event);
}
catch
{
HandleConsumptionError(ea, @event, queue);
}
channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
};
string consumerId = channel.BasicConsume(queue: queue, autoAck: false, consumer: consumer);
}
public void ConsumeMessages(string queue, ushort prefetchCount = 10)
{
var channel = _config.Channel();
DeclareQueue(channel, queue);
channel.BasicQos(0, prefetchCount, false);
var scope = _serviceProvider.CreateScope();
var consumer = new EventingBasicConsumer(channel);
consumer.Received += async(model, ea) =>
{
var message = Encoding.UTF8.GetString(ea.Body.Span);
var @event = _deserializer.Deserialize(message);
var subscriber = DomainEventSubscribers.ContainsKey(queue)
? DomainEventSubscribers[queue]
: SubscribeFor(queue, scope);
try
{
await((DomainEventSubscriberBase)subscriber).On(@event);
}
catch
{
HandleConsumptionError(ea, @event, queue);
}
channel.BasicAck(ea.DeliveryTag, false);
};
var consumerId = channel.BasicConsume(queue, false, consumer);
}
public void Publish(string exchangeName, string eventName, string message)
{
var channel = _config.Channel();
channel.ExchangeDeclare(exchange: exchangeName, type: ExchangeType.Topic);
var body = Encoding.UTF8.GetBytes(message);
var properties = channel.CreateBasicProperties();
properties.Headers = new Dictionary <string, object>
{
{ HeaderReDelivery, 0 }
};
channel.BasicPublish(exchange: exchangeName,
routingKey: eventName,
basicProperties: properties,
body: body);
}
public void Configure()
{
var channel = _config.Channel();
var retryDomainEventExchange = RabbitMqExchangeNameFormatter.Retry(_domainEventExchange);
var deadLetterDomainEventExchange = RabbitMqExchangeNameFormatter.DeadLetter(_domainEventExchange);
channel.ExchangeDeclare(_domainEventExchange, ExchangeType.Topic);
channel.ExchangeDeclare(retryDomainEventExchange, ExchangeType.Topic);
channel.ExchangeDeclare(deadLetterDomainEventExchange, ExchangeType.Topic);
foreach (var subscriberInformation in _domainEventSubscribersInformation.All())
{
var domainEventsQueueName = RabbitMqQueueNameFormatter.Format(subscriberInformation);
var retryQueueName = RabbitMqQueueNameFormatter.FormatRetry(subscriberInformation);
var deadLetterQueueName = RabbitMqQueueNameFormatter.FormatDeadLetter(subscriberInformation);
var subscribedEvent = EventNameSubscribed(subscriberInformation);
var queue = channel.QueueDeclare(queue: domainEventsQueueName,
durable: true,
exclusive: false,
autoDelete: false);
var retryQueue = channel.QueueDeclare(queue: retryQueueName, (bool)true,
(bool)false,
(bool)false,
(IDictionary <string, object>)RetryQueueArguments(_domainEventExchange, domainEventsQueueName));
var deadLetterQueue = channel.QueueDeclare(queue: deadLetterQueueName, durable: true,
exclusive: false,
autoDelete: false);
channel.QueueBind(queue, _domainEventExchange, domainEventsQueueName);
channel.QueueBind(retryQueue, retryDomainEventExchange, domainEventsQueueName);
channel.QueueBind(deadLetterQueue, deadLetterDomainEventExchange, domainEventsQueueName);
channel.QueueBind(queue, _domainEventExchange, subscribedEvent);
}
}
public void Configure()
{
var channel = _config.Channel();
var retryDomainEventExchange = RabbitMqExchangeNameFormatter.Retry(_domainEventExchange);
var deadLetterDomainEventExchange = RabbitMqExchangeNameFormatter.DeadLetter(_domainEventExchange);
channel.ExchangeDeclare(_domainEventExchange, ExchangeType.Topic);
channel.ExchangeDeclare(retryDomainEventExchange, ExchangeType.Topic);
channel.ExchangeDeclare(deadLetterDomainEventExchange, ExchangeType.Topic);
foreach (var subscriberInformation in _domainEventSubscribersInformation.All())
{
var domainEventsQueueName = RabbitMqQueueNameFormatter.Format(subscriberInformation);
var retryQueueName = RabbitMqQueueNameFormatter.FormatRetry(subscriberInformation);
var deadLetterQueueName = RabbitMqQueueNameFormatter.FormatDeadLetter(subscriberInformation);
var subscribedEvent = EventNameSubscribed(subscriberInformation);
var queue = channel.QueueDeclare(domainEventsQueueName,
true,
false,
false);
var retryQueue = channel.QueueDeclare(retryQueueName, true,
false,
false,
RetryQueueArguments(_domainEventExchange, domainEventsQueueName));
var deadLetterQueue = channel.QueueDeclare(deadLetterQueueName, true,
false,
false);
channel.QueueBind(queue, _domainEventExchange, domainEventsQueueName);
channel.QueueBind(retryQueue, retryDomainEventExchange, domainEventsQueueName);
channel.QueueBind(deadLetterQueue, deadLetterDomainEventExchange, domainEventsQueueName);
channel.QueueBind(queue, _domainEventExchange, subscribedEvent);
}
}