public void TestCopyHeaders()
{
IEnumerable <string> xDeathHeaderNames = typeof(RabbitMqXDeathHeaders)
.GetFields(BindingFlags.Public | BindingFlags.Static)
.Where(fi => (fi.FieldType.IsAssignableFrom(typeof(string))))
.Select(x => (string)x.GetValue(null));
Dictionary <string, object> source = xDeathHeaderNames.ToDictionary <string, string, object>(item => item, item => "test");
source.Add("other", "garbage data");
var target = new Dictionary <string, object>();
Assert.DoesNotThrow(() => RabbitMqXDeathHeaders.CopyHeaders(source, target));
source.Remove("other");
Assert.True(source.Count == target.Count && !source.Except(target).Any());
}
private void RepublishMessage(BasicDeliverEventArgs deliverArgs)
{
var exchangeForRepublish = (string)deliverArgs.BasicProperties.Headers[RabbitMqXDeathHeaders.XFirstDeathExchangeKey];
try
{
_model.ExchangeDeclarePassive(exchangeForRepublish);
}
catch (OperationInterruptedException e)
{
// If an exchange doesn't exist, then we are forced to Fatal the host
throw new ApplicationException("Exchange for republishing did not exist (\"" + exchangeForRepublish + "\")", e);
}
_props.Timestamp = new AmqpTimestamp(MessageHeader.UnixTimeNow());
// Clear the existing headers so we can update them and re-add
ClearMessageHeaders(_props.Headers);
// Update the new message props with the existing data from the deliverArgs
var existingHeader = new MessageHeader(deliverArgs.BasicProperties.Headers);
new MessageHeader(existingHeader).Populate(_props.Headers);
RabbitMqXDeathHeaders.CopyHeaders(deliverArgs.BasicProperties.Headers, _props.Headers);
_model.BasicPublish(exchangeForRepublish, deliverArgs.RoutingKey, true, _props, deliverArgs.Body);
try
{
_model.WaitForConfirmsOrDie(_confirmTimeout);
}
catch (Exception e)
{
// If we can't republish a certain message, send it to graveyard
_logger.Error(e, "WaitForConfirmsOrDie Died");
_deadLetterStore.SendToGraveyard(existingHeader.MessageGuid, "Couldn't republish", e);
return;
}
_deadLetterStore.NotifyMessageRepublished(existingHeader.MessageGuid);
++TotalRepublished;
}
