public void ProcessMessage(object sender, BasicDeliverEventArgs e)
{
var mi = MessageInfo(e);
try
{
_logger.LogInformation($@"Got message {mi}");
TSrc src;
using (var ms = new MemoryStream(e.Body))
{
src = ProtoBuf.Serializer.Deserialize <TSrc>(ms);
_logger.LogInformation($@"Message {mi}
JSON view: {JsonConvert.SerializeObject(src, Formatting.Indented)}");
}
var dst = _transformer.Transform(src);
_writer.WriteAsync(dst).Wait();
_channel.BasicAck(e.DeliveryTag, false);
OnProcessed?.Invoke(this, new MessageProcessedEventArgs <TSrc>(src));
_logger.LogInformation($"Message processed {mi}");
}
catch (Exception ex)
{
_logger.LogError($@"Error message process {mi}
Requeue after {_rabbitConfig.RequeueOnErrorAfter}
Error {ex.Message}. {ex}");
OnProcessError?.Invoke(this, new MessageProcessErrorEventArgs(ex));
Task.Run(async() =>
{
await Task.Delay(_rabbitConfig.RequeueOnErrorAfter);
_channel?.BasicNack(e.DeliveryTag, false, true);
_logger.LogInformation($@"Reqeue message {mi}");
});
}
}
/// <summary> /// Fires the process error output event. /// </summary> /// <param name="content">The content.</param> private void FireProcessErrorEvent(string content) => OnProcessError?.Invoke(this, new ProcessEventArgs(content));
/// <summary>
/// Fires the process error output event.
/// </summary>
/// <param name="content">The content.</param>
private void FireProcessErrorEvent(string content)
{
// Get the event and fire it.
OnProcessError?.Invoke(this, new ProcessEventArgs(content));
}
