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Fixed #29: Deserialization errors due to not buffering RabbitMQ Client's body

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- TIL there is an AsyncDefaultBasicConsumer which eliminates the need for the Task.Run
This commit is contained in:
Mark van Renswoude 2021-06-25 09:28:25 +02:00
parent 21a47ea6f5
commit e33201dc17
3 changed files with 15 additions and 17 deletions
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23
Tapeti/Connection/TapetiBasicConsumer.cs
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@ -9,7 +9,7 @@ namespace Tapeti.Connection
/// <summary> /// <summary>
/// Implements the bridge between the RabbitMQ Client consumer and a Tapeti Consumer /// Implements the bridge between the RabbitMQ Client consumer and a Tapeti Consumer
/// </summary> /// </summary>
internal class TapetiBasicConsumer : DefaultBasicConsumer internal class TapetiBasicConsumer : AsyncDefaultBasicConsumer
{ {
private readonly IConsumer consumer; private readonly IConsumer consumer;
private readonly Func<ulong, ConsumeResult, Task> onRespond; private readonly Func<ulong, ConsumeResult, Task> onRespond;
@ -24,7 +24,7 @@ namespace Tapeti.Connection
/// <inheritdoc /> /// <inheritdoc />
public override void HandleBasicDeliver(string consumerTag, public override async Task HandleBasicDeliver(string consumerTag,
ulong deliveryTag, ulong deliveryTag,
bool redelivered, bool redelivered,
string exchange, string exchange,
@ -32,18 +32,15 @@ namespace Tapeti.Connection
IBasicProperties properties, IBasicProperties properties,
ReadOnlyMemory<byte> body) ReadOnlyMemory<byte> body)
{ {
Task.Run(async () => try
{ {
try var response = await consumer.Consume(exchange, routingKey, new RabbitMQMessageProperties(properties), body);
{ await onRespond(deliveryTag, response);
var response = await consumer.Consume(exchange, routingKey, new RabbitMQMessageProperties(properties), body.ToArray()); }
await onRespond(deliveryTag, response); catch
} {
catch await onRespond(deliveryTag, ConsumeResult.Error);
{ }
await onRespond(deliveryTag, ConsumeResult.Error);
}
});
} }
} }
} }

4
Tapeti/Connection/TapetiConsumer.cs
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@ -39,12 +39,12 @@ namespace Tapeti.Connection
/// <inheritdoc /> /// <inheritdoc />
public async Task<ConsumeResult> Consume(string exchange, string routingKey, IMessageProperties properties, byte[] body) public async Task<ConsumeResult> Consume(string exchange, string routingKey, IMessageProperties properties, ReadOnlyMemory<byte> body)
{ {
object message = null; object message = null;
try try
{ {
message = messageSerializer.Deserialize(body, properties); message = messageSerializer.Deserialize(body.ToArray(), properties);
if (message == null) if (message == null)
throw new ArgumentException("Message body could not be deserialized into a message object", nameof(body)); throw new ArgumentException("Message body could not be deserialized into a message object", nameof(body));

5
Tapeti/IConsumer.cs
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@ -1,4 +1,5 @@
using System.Threading.Tasks; using System;
using System.Threading.Tasks;
using Tapeti.Config; using Tapeti.Config;
namespace Tapeti namespace Tapeti
@ -16,6 +17,6 @@ namespace Tapeti
/// <param name="properties">Metadata included in the message</param> /// <param name="properties">Metadata included in the message</param>
/// <param name="body">The raw body of the message</param> /// <param name="body">The raw body of the message</param>
/// <returns></returns> /// <returns></returns>
Task<ConsumeResult> Consume(string exchange, string routingKey, IMessageProperties properties, byte[] body); Task<ConsumeResult> Consume(string exchange, string routingKey, IMessageProperties properties, ReadOnlyMemory<byte> body);
} }
} }