Tapeti Consumer HandleBasicDeliver schedules a Task asynchronously to handle the messages
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@ -17,6 +17,8 @@ namespace Tapeti.Connection
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private readonly IDependencyResolver dependencyResolver;
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private readonly IReadOnlyList<IMessageMiddleware> messageMiddleware;
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private readonly List<IBinding> bindings;
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private readonly ILogger logger;
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private readonly IExceptionStrategy exceptionStrategy;
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@ -28,6 +30,7 @@ namespace Tapeti.Connection
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this.messageMiddleware = messageMiddleware;
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this.bindings = bindings.ToList();
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logger = dependencyResolver.Resolve<ILogger>();
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exceptionStrategy = dependencyResolver.Resolve<IExceptionStrategy>();
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}
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@ -35,59 +38,65 @@ namespace Tapeti.Connection
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public override void HandleBasicDeliver(string consumerTag, ulong deliveryTag, bool redelivered, string exchange, string routingKey,
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IBasicProperties properties, byte[] body)
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{
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ExceptionDispatchInfo exception = null;
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try
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Task.Run(async () =>
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{
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var message = dependencyResolver.Resolve<IMessageSerializer>().Deserialize(body, properties);
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if (message == null)
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throw new ArgumentException("Empty message");
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var validMessageType = false;
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using (var context = new MessageContext
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ExceptionDispatchInfo exception = null;
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try
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{
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DependencyResolver = dependencyResolver,
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Queue = queueName,
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RoutingKey = routingKey,
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Message = message,
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Properties = properties
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})
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{
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try
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var message = dependencyResolver.Resolve<IMessageSerializer>().Deserialize(body, properties);
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if (message == null)
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throw new ArgumentException("Empty message");
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var validMessageType = false;
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using (var context = new MessageContext
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{
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foreach (var binding in bindings)
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DependencyResolver = dependencyResolver,
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Queue = queueName,
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RoutingKey = routingKey,
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Message = message,
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Properties = properties
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})
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{
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try
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{
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if (binding.Accept(context, message))
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foreach (var binding in bindings)
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{
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InvokeUsingBinding(context, binding, message);
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if (binding.Accept(context, message))
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{
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await InvokeUsingBinding(context, binding, message);
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validMessageType = true;
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validMessageType = true;
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}
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}
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if (!validMessageType)
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throw new ArgumentException($"Unsupported message type: {message.GetType().FullName}");
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await worker.Respond(deliveryTag, ConsumeResponse.Ack);
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}
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catch (Exception e)
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{
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exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
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await worker.Respond(deliveryTag, exceptionStrategy.HandleException(context, exception.SourceException));
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}
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if (!validMessageType)
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throw new ArgumentException($"Unsupported message type: {message.GetType().FullName}");
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worker.Respond(deliveryTag, ConsumeResponse.Ack);
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}
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catch (Exception e)
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{
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exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
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worker.Respond(deliveryTag, exceptionStrategy.HandleException(context, exception.SourceException));
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}
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}
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}
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catch (Exception e)
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{
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exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
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worker.Respond(deliveryTag, exceptionStrategy.HandleException(null, exception.SourceException));
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}
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catch (Exception e)
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{
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exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
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await worker.Respond(deliveryTag, exceptionStrategy.HandleException(null, exception.SourceException));
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}
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exception?.Throw();
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if (exception != null)
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{
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logger.HandlerException(exception.SourceException);
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}
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});
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}
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private void InvokeUsingBinding(MessageContext context, IBinding binding, object message)
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private Task InvokeUsingBinding(MessageContext context, IBinding binding, object message)
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{
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context.Binding = binding;
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@ -136,9 +145,7 @@ namespace Tapeti.Connection
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await binding.Invoke(c, message);
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});
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firstCaller.Call(context)
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.Wait();
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return firstCaller.Call(context);
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}
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private static Exception UnwrapException(Exception exception)
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@ -1,4 +1,6 @@
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namespace Tapeti.Default
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using System;
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namespace Tapeti.Default
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{
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public class ConsoleLogger : ILogger
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{
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@ -16,5 +18,10 @@
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{
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throw new System.NotImplementedException();
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}
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public void HandlerException(Exception e)
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{
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Console.WriteLine(e.ToString());
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}
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}
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}
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@ -1,4 +1,6 @@
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namespace Tapeti.Default
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using System;
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namespace Tapeti.Default
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{
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public class DevNullLogger : ILogger
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{
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@ -13,5 +15,9 @@
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public void ConnectSuccess(TapetiConnectionParams connectionParams)
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{
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}
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public void HandlerException(Exception e)
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{
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}
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}
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}
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@ -1,4 +1,6 @@
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namespace Tapeti
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using System;
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namespace Tapeti
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{
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// This interface is deliberately specific and typed to allow for structured logging (e.g. Serilog)
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// instead of only string-based logging without control over the output.
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@ -7,5 +9,6 @@
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void Connect(TapetiConnectionParams connectionParams);
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void ConnectFailed(TapetiConnectionParams connectionParams);
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void ConnectSuccess(TapetiConnectionParams connectionParams);
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void HandlerException(Exception e);
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}
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}
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@ -20,6 +20,7 @@ namespace Test
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var container = new Container();
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container.Register<MarcoEmitter>();
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container.Register<Visualizer>();
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container.Register<ILogger, Tapeti.Default.ConsoleLogger>();
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//container.Register<IFlowRepository>(() => new EF(serviceID));
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