public static void WithRequestReply <TCommand, TCommandResult>(this IModel channel,
ICommandHandler <TCommand, TCommandResult> handler, RabbitMQTrackException trackException,
QueueConfigurationOptionsReply option)
where TCommand : Command <TCommandResult>
{
var queueName = String.IsNullOrEmpty(option.QueueName) ? ConfigureServicesRabbitMQ.GetQueueName <TCommand>() : option.QueueName;
channel.QueueDeclare(
queue: queueName,
durable: option.Durable,
exclusive: option.Exclusive,
autoDelete: option.AutoDelete,
arguments: option.Arguments);
channel.BasicQos(0, 1, false);
var consumer = new EventingBasicConsumer(channel);
channel.BasicConsume(queueName, false, consumer);
consumer.Received += (model, ea) =>
{
var body = ea.Body;
var props = ea.BasicProperties;
var replyProps = channel.CreateBasicProperties();
replyProps.CorrelationId = props.CorrelationId;
var message = Encoding.UTF8.GetString(body.ToArray());
var requestCommand = JsonConvert.DeserializeObject <TCommand>(message);
var responseAwait = handler.HandleWithEventAsync(requestCommand).GetAwaiter();
byte[] responseBytes = null;
responseAwait.OnCompleted(() =>
{
try
{
var response = responseAwait.GetResult();
responseBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(response));
}
catch (Exception e)
{
responseBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(""));
trackException.Exception(e);
}
finally
{
channel.BasicPublish(exchange: "", routingKey: props.ReplyTo,
basicProperties: replyProps, body: responseBytes);
channel.BasicAck(deliveryTag: ea.DeliveryTag,
multiple: false);
}
});
};
}
public BusBuilder RequestReplyCommand <TCommand, TCommandResult, THandler>(Action <QueueConfigurationOptionsReply> optionAction = null)
where TCommand : Command <TCommandResult>
where THandler : ICommandHandler <TCommand, TCommandResult>
{
var option = new QueueConfigurationOptionsReply();
optionAction?.Invoke(option);
AddIocResult <TCommand, TCommandResult, THandler>(option.Types);
var handler = _scope.ServiceProvider
.GetRequiredService <ICommandHandler <TCommand, TCommandResult> >();
_bus.WithRequestReply(handler, _trackException, option);
return(this);
}
