/// <summary>
/// Receives Message from outgoing queue, deserializes as an MtMessage
/// DTO then in turn builds up a FormDataCollection of KVPs to be published
/// externally
/// </summary>
public void ListenForAcmeMessages()
{
ulong eaTag = 0;
try
{
var consumer = new EventingBasicConsumer(_channelTxSub);
consumer.Received += (ch, ea) =>
{
var body = ea.Body;
eaTag = ea.DeliveryTag;
// ... process the message
byte[] payload = null;
Type msgType = null;
var msgOut = Encoding.UTF8.GetString(body);
var deserial = JsonConvert.DeserializeObject <MtMessageDTO>(msgOut);
var kvpList = _outgoingService.ConvertToKvpList(deserial);
var fue = new FormUrlEncodedContent(kvpList);
var handler = new WebRequestHandler();
string path = System.Reflection.Assembly.GetExecutingAssembly().Location;
if (!string.IsNullOrEmpty(path))
{
var certPath = System.IO.Path.Combine(path, "../Certificates/anonymouscom.crt");
handler.ServerCertificateValidationCallback = Target;
X509Certificate2 clientCertificate = new X509Certificate2(certPath);
handler.ClientCertificates.Add(clientCertificate);
var outcome = _externalPublisher.ClientPost(Uri, RequestUri, handler, false, fue, null);
if (outcome.Result != null && outcome.Result.Contains("OK"))
{
_channelTxSub.BasicAck(ea.DeliveryTag, false);
//_channelTxSub.BasicNack(ea.DeliveryTag, false, true);
_log.Information("Successfully published Message | Result: " + outcome.Result + " | IMEI: " +
kvpList.ToArray().FirstOrDefault(x => x.Key.ToLower() == "imei").Value);
}
else
{
//if not published mark header with retry attempt and increment counter
object i = 0;
if (ea.BasicProperties.Headers != null)
{
if (ea.BasicProperties.Headers.ContainsKey("x-redelivery-count"))
//check to see if message has retry count header
{
ea.BasicProperties.Headers.TryGetValue("x-redelivery-count", out i);
}
}
if (i == null || (int)i < 2) //limit retry attempts to 2
{
ea.BasicProperties.Headers?.Remove("x-redelivery-count");
//if not null remove header for replacement/update
var bindingOneHeaders = new Dictionary <string, object>();
bindingOneHeaders.Add("x-redelivery-count", (int?)i + 1 ?? 1);
ea.BasicProperties.Headers = bindingOneHeaders;
_channelTxSub.BasicPublish(exchange: "AcmeOut", routingKey: "AcmeMT",
basicProperties: ea.BasicProperties, body: ea.Body);
_channelTxSub.BasicReject(ea.DeliveryTag, false);
_log.Warning("FAILED EXTERNAL PUBLISH | " + "Error: " + outcome.Result + " | IMEI: " + kvpList.ToArray().FirstOrDefault(x => x.Key.ToLower() == "imei").Value + " Redelivery Attempt: " + (int?)i);
}
else //move to dead letter queue
{
_channelTxSub.BasicReject(ea.DeliveryTag, false);
}
}
}
};
_channelTxSub.BasicConsume("AcmeTx", false, consumer);
}
catch (Exception ex)
{
_channelTxSub.BasicReject(eaTag, false); //on exception reject message
_log.Error("MessageOutListener ListenForAcmeMessages Exception | " + ex.Message);
}
}