protected override async Task ConsumerReceived(object sender, BasicDeliverEventArgs eventArgs)
{
string[] result = eventArgs.RoutingKey.Split('.');
var eventName = result.Length > 1 ? result[0] : eventArgs.RoutingKey;
try
{
try
{
var props = eventArgs.BasicProperties;
var replyProps = ConsumerChannel.CreateBasicProperties();
replyProps.CorrelationId = props.CorrelationId;
var response = await ProcessEventRpc(eventArgs.RoutingKey, eventName, eventArgs.Body).ConfigureAwait(false);
var ms = new MemoryStream();
Serializer.Serialize <IIntegrationEventReply>(ms, response);
var body = ms.ToArray();
ConsumerChannel.BasicPublish(ExchangeDeclareParameters.ExchangeName, (string)response.RoutingKey, replyProps, body);
}
catch (Exception ex)
{
Logger.LogError("CreateConsumerChannel RPC Received: " + ex.Message + " - " + ex.StackTrace);
}
}
catch (Exception ex)
{
Logger.LogWarning("ConsumerReceived: " + eventName + " - " + ex.Message + " - " + ex.StackTrace);
}
// Even on exception we take the message off the queue.
// in a REAL WORLD app this should be handled with a Dead Letter Exchange (DLX).
// For more information see: https://www.rabbitmq.com/dlx.html
ConsumerChannel.BasicAck(eventArgs.DeliveryTag, multiple: false);
}
/// <summary>
/// Acknowledge the message arrival and processing, so that RabbitMq can remove it from the queue.
/// </summary>
/// <param name="msg">The message instance</param>
public void Ack(RabbitWorkMessage msg)
{
if (ConsumerChannel.IsOpen)
{
ConsumerChannel.BasicAck(msg.DeliveryTag, false);
}
}
protected override async Task ConsumerReceived(object sender, BasicDeliverEventArgs eventArgs)
{
string[] result = eventArgs.RoutingKey.Split('.');
var eventName = result.Length > 1 ? result[0] : eventArgs.RoutingKey;
try
{
//if (!eventArgs.BasicProperties.CorrelationId.Equals(_correlationId)) return;
if (!_callbackMapper.TryRemove(eventArgs.BasicProperties.CorrelationId, out TaskCompletionSource <dynamic> tcs))
{
return;
}
await ProcessEventReply(eventArgs.RoutingKey, eventName, eventArgs.Body, tcs).ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.LogWarning("ConsumerReceivedReply: " + eventName + " - " + ex.Message + " - " + ex.StackTrace);
}
// Even on exception we take the message off the queue.
// in a REAL WORLD app this should be handled with a Dead Letter Exchange (DLX).
// For more information see: https://www.rabbitmq.com/dlx.html
ConsumerChannel.BasicAck(eventArgs.DeliveryTag, multiple: false);
}
private void Connect()
{
var logString = $"hostname: {_consumerSettings.Host}, username: {_consumerSettings.Username}, password: {_consumerSettings.Password}, exchangeName: {_consumerSettings.Exchange}, " +
$"queueName: {_consumerSettings.Queue}, isDurable: {_consumerSettings.IsDurable}, isAutodelete: {_consumerSettings.AutoDelete}, routingKey: {_consumerSettings.RoutingKey}";
_logger.LogInformation("Connect: Connecting for {0}", logString);
_consumer = new EventingBasicConsumer(ConsumerChannel);
_consumer.Received += (model, ea) =>
{
try
{
_logger.LogInformation("Consume: Calling handler for {0}", logString);
IBasicProperties props = ea.BasicProperties;
// get body
byte[] body = ea.Body;
var json = Encoding.UTF8.GetString(body);
var msg = JsonConvert.DeserializeObject <QMessage>(json, _consumerSerializationSettings);
msg.Properties = new QProperties()
{
AppId = props.AppId,
ClusterId = props.ClusterId,
ContentEncoding = props.ContentEncoding,
ContentType = props.ContentType,
CorrelationId = props.CorrelationId,
DeliveryMode = props.DeliveryMode,
Expiration = props.Expiration,
MessageId = props.MessageId,
Priority = props.Priority,
ReplyTo = props.ReplyTo,
Type = props.Type,
UserId = props.UserId
};
if (MessageRecieved != null)
{
MessageRecieved(model, msg);
}
//callBack(model, msg); // return byte array
ConsumerChannel.BasicAck(ea.DeliveryTag, false);
_logger.LogInformation("Consume: Acknowledged for {0}", logString);
}
catch (Exception ex)
{
_logger.LogError("Consume: Error {0}, Stack: {1}", ex.Message, ex.StackTrace);
}
};
ConsumerChannel.BasicConsume(queue: _consumerSettings.Queue, autoAck: false,
consumer: _consumer);
_logger.LogInformation("Consume: Connected for {0}", logString);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public QMessage Dequeue <T>(bool ack = false)
{
QMessage msg = null;
BasicGetResult result;
try
{
//IBasicProperties basicProperties = ConsumerChannel.CreateBasicProperties();
//basicProperties.Persistent = true;
lock (_lockSubscriber)
{
bool noAck = false;
// get message from queue
result = ConsumerChannel.BasicGet(_consumerSettings.Queue, noAck);
if (result == null)
{
// No message available at this time.
}
else
{
IBasicProperties props = result.BasicProperties;
// get body
byte[] body = result.Body;
var json = Encoding.UTF8.GetString(body);
json = json.Replace("\"$type\":\"Infrastructure.Queueing.Model.QMessage, Infrastructure.Queueing\",", "");
json = json.Replace("\"$type\":\"Infra.Quotes.Brige.Models.BridgeQuote, Infra.Quotes.Bridge\",", "");
msg = JsonConvert.DeserializeObject <QMessage>(json, _consumerSerializationSettings);
msg.DeliveryTag = result.DeliveryTag;
msg.Properties = new QProperties()
{
AppId = props.AppId,
ClusterId = props.ClusterId,
ContentEncoding = props.ContentEncoding,
ContentType = props.ContentType,
CorrelationId = props.CorrelationId,
DeliveryMode = props.DeliveryMode,
Expiration = props.Expiration,
MessageId = props.MessageId,
Priority = props.Priority,
ReplyTo = props.ReplyTo,
Type = props.Type,
UserId = props.UserId
};
if (ack)
{
ConsumerChannel.BasicAck(result.DeliveryTag, false);
}
}
}
}
catch (OperationInterruptedException ex)
{
_logger.LogCritical($"Dequeue Error {ex.Message},Inner Exception:{ex.InnerException}, Stack: {ex.StackTrace}");
throw;
}
return(msg);
}
