public async Task Consume(ConsumeContext <UserRegisteredEvent> context)
{
using (var scope = TracingExtension.StartServerSpan(_tracer, context.Message.TracingKeys, "user-activation-link-sender-consumer"))
{
//some user activation link send business logics
await System.Console.Out.WriteLineAsync($"Activation link sent for {context.Message.Email}");
}
}
public void Start()
{
var retryOnStartupPolicy = Policy
.Handle <Exception>()
.WaitAndRetry(9, retryAttempt =>
TimeSpan.FromSeconds(Math.Pow(2, retryAttempt))
);
retryOnStartupPolicy.Execute(() =>
{
con = this._client.GetConnection();
model = this._client.GetModel(con);
EventingBasicConsumer consumer = new EventingBasicConsumer(model);
consumer.Received += async(m, ea) =>
{
System.Console.WriteLine("Processando item da fila.");
this._sharedTracing.CorrelationId = JsonConvert.DeserializeObject <IDictionary <string, string> >(Encoding.UTF8.GetString((byte[])ea.BasicProperties.Headers["tracing"]));
using (var scope = TracingExtension.StartServerSpan(_tracer, this._sharedTracing.CorrelationId, "Tracing RabbitMQ"))
{
scope.Span.Log("Consumindo a fila");
T oEvent = JsonConvert.DeserializeObject <T>(Encoding.UTF8.GetString(ea.Body.ToArray()));
try
{
await this._action(oEvent);
model.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
System.Console.WriteLine("Processado item da fila.");
}
catch (Exception e)
{
System.Console.WriteLine("Erro ao processar item da fila. - " + e.Message);
model.BasicNack(deliveryTag: ea.DeliveryTag, multiple: false, requeue: true);
}
}
};
model.BasicConsume(queue: this._client.GetQueueName(),
autoAck: false,
consumer: consumer);
});
}
public void Intercept(IInvocation invocation)
{
using (IScope scope = this._sharedTracing.CorrelationId == null ? this._tracer.BuildSpan("TraceInterceptor").StartActive(true) : TracingExtension.StartServerSpan(_tracer, this._sharedTracing.CorrelationId, "TraceInterceptor"))
{
try
{
scope.Span.SetTag("arguments", JsonConvert.SerializeObject(invocation.Arguments));
scope.Span.Log($"Classe {invocation.TargetType.FullName} executando o metodo {invocation.Method.Name}.");
invocation.Proceed();
scope.Span.Log($"Classe {invocation.TargetType.FullName} executado o metodo {invocation.Method.Name}.");
}
catch (Exception)
{
scope.Span.Log($"Erro com a classe {invocation.TargetType.FullName} executado o metodo {invocation.Method.Name}.");
throw;
}
}
}
