public static void Run()
{
var messagingService = new MessagingService();
// RabbitMQ init
messagingService.DeclareExchange("deadletter.exchange", Constants.ExchangeTypeFanout);
messagingService.DeclareQueue("deadletter.queue");
messagingService.DeclareBinding("deadletter.exchange", "deadletter.queue", "#");
messagingService.DeclareExchange("delay.exchange", Constants.ExchangeTypeHeaders);
messagingService.DeclareQueueWithDeadLetterPolicy("deadletter.queue.5", "deadletter.exchange", 5000, null);
messagingService.DeclareQueueWithDeadLetterPolicy("deadletter.queue.30", "deadletter.exchange", 30000, null);
messagingService.DeclareBinding("delay.exchange", "deadletter.queue.5", "#", new Dictionary <string, object> {
{ "delay", 5 }
});
messagingService.DeclareBinding("delay.exchange", "deadletter.queue.30", "#", new Dictionary <string, object> {
{ "delay", 30 }
});
var dateStart = DateTime.Now;
// Get the publisher and publish messages
using (var publisher = messagingService.GetPublisher("delay.exchange"))
{
// publish messages waiting 5s
for (int i = 0; i <= 10; i++)
{
var message = new Message($"delay.5.message.{i}", $"Waited 5s: {i} !");
message.Header.GetProperties().Add("delay", 5);
publisher.Publish(message);
}
// publish messages waiting 30s
for (int i = 0; i <= 10; i++)
{
var message = new Message($"delay.30.message.{i}", $"Waited 30s: {i} !");
message.Header.GetProperties().Add("delay", 30);
publisher.Publish(message);
}
}
// Get the consumer on the existing queue and consume its messages
var consumer = messagingService.GetConsumer("deadletter.queue");
consumer.Consume((object sender, IMessagingEvent args) =>
{
var realDelay = DateTime.Now.Subtract(dateStart).TotalSeconds;
Console.WriteLine(string.Format("{0} received after {1:#.##}s.", args.Message.GetRoutingKey(), realDelay));
// send ACK: acknowlegdment to the queue
consumer.AcknowlegdeDeliveredMessage(args);
});
}
