private static XDeadHeader BuildXDeadHeader(object o)
{
List <object> list = (List <object>)o;
Dictionary <string, object> values = (Dictionary <string, object>)list[0];
byte[] reason = (byte[])values["reason"];
byte[] queue = (byte[])values["queue"];
AmqpTimestamp time = (AmqpTimestamp)values["time"];
byte[] exchange = (byte[])values["exchange"];
List <object> routingKeys = (List <object>)values["routing-keys"];
XDeadHeader xDeadHeader = new XDeadHeader
{
Reason = Encoding.ASCII.GetString(reason),
Queue = Encoding.ASCII.GetString(queue),
Exchange = Encoding.ASCII.GetString(exchange),
Time = time.GetDateTime()
};
foreach (var routingKey in routingKeys)
{
xDeadHeader.RoutingKeys.Add(Encoding.ASCII.GetString((byte[])routingKey));
}
return(xDeadHeader);
}
public void MessageProcessFailedOnce_RejectMessageUsingExceptionFilter_CheckMessageDeliveredToDeadLetterQ()
{
using (RabbitMQBus entityA = new RabbitMQBus(), entityB = new RabbitMQBus(), entityC = new RabbitMQBus(c => c.UseConnectionString("amqp://localhost/amq.direct")))
{
TransactionalPerson message = new TransactionalPerson
{
Id = 5
};
ManualResetEvent ev = new ManualResetEvent(false);
int counter = 0;
BusMessage <TransactionalPerson> actual = null;
using (ISubscriber subscriberA = entityA.CreateSubscriber(c => c.UseDurableQueue(QueueName).UseTransactionalDelivery(new MyFilter())))
{
subscriberA.Subscribe((Action <TransactionalPerson>)(d =>
{
counter++;
throw new Exception();
}));
subscriberA.Open();
using (ISubscriber deadLetterSubscriber = entityC.CreateSubscriber(c => c.UseDurableQueue(DeadLetterQueueName)))
{
deadLetterSubscriber.Subscribe <TransactionalPerson>(m =>
{
actual = m;
ev.Set();
});
deadLetterSubscriber.Open();
const int expected = 2;
using (IPublisher publisher = entityB.CreatePublisher())
{
publisher.Send(message);
}
bool waitOne = ev.WaitOne(TimeSpan.FromSeconds(50));
counter.Should().BeGreaterOrEqualTo(expected);
waitOne.Should().BeTrue();
actual.Data.ShouldBeEquivalentTo(message);
XDeadHeader xDeadHeader = actual.Headers.OfType <XDeadHeader>().First();
xDeadHeader.Exchange.Should().Be("amq.headers");
xDeadHeader.Reason.Should().Be("rejected");
xDeadHeader.Queue.Should().Be(QueueName);
}
}
}
}
private void ConstructHeaders(BusMessage message, IBasicProperties properties)
{
foreach (KeyValuePair <string, object> header in properties.Headers)
{
object o = header.Value;
if (header.Key == XDeadHeader.WellknownName)
{
List <object> list = (List <object>)o;
Dictionary <string, object> values = (Dictionary <string, object>)list[0];
byte[] reason = (byte[])values["reason"];
byte[] queue = (byte[])values["queue"];
AmqpTimestamp time = (AmqpTimestamp)values["time"];
byte[] exchange = (byte[])values["exchange"];
List <object> routingKeys = (List <object>)values["routing-keys"];
XDeadHeader xDeadHeader = new XDeadHeader
{
Reason = Encoding.ASCII.GetString(reason),
Queue = Encoding.ASCII.GetString(queue),
Exchange = Encoding.ASCII.GetString(exchange),
Time = time.GetDateTime()
};
foreach (var routingKey in routingKeys)
{
xDeadHeader.RoutingKeys.Add(Encoding.ASCII.GetString((byte[])routingKey));
}
message.Headers.Add(xDeadHeader);
}
else if (header.Key == RejectedHeader.WellknownName)
{
message.Headers.Add(new RejectedHeader());
}
else if (header.Key == ExceptionHeader.WellknownName)
{
message.Headers.Add(new ExceptionHeader
{
Message = Encoding.ASCII.GetString((byte[])o)
});
}
else
{
message.Headers.Add(new BusHeader(header.Key, Encoding.ASCII.GetString((byte[])o)));
}
}
}
