/// <inheritdoc />
public async Task Subscribe(Func <HttpResponseMessage, bool> callback)
{
await _communication.Init();
var declare = _communication.Declare(_exchange, AmqpCommunication.ClientResponseQueue, false);
_communication.Declare(_exchange, AmqpCommunication.ClientDelayQueue, false);
_communication.Declare(_exchange, AmqpCommunication.ClientErrorQueue, false);
_communication.CreateBasicConsumer(declare.QueueName, async(sender, args) =>
{
try
{
_log.LogTrace($"Queue: {declare.QueueName}. CorrelationId {args.BasicProperties.CorrelationId}. Message size {args.Body.LongLength}");
var correlationId = args.BasicProperties.CorrelationId;
if (string.IsNullOrWhiteSpace(correlationId))
{
_log.LogError($"Correlation not found. This request not be processed. Please set header {AmqpHeaders.CorrelationId}. Unique value");
SendError(args);
return;
}
_log.LogTrace($"Parsing response {correlationId}");
var response = await _converter.TryParse(args);
if (response == null)
{
_log.LogTrace($"Parsing error {correlationId}. Send error queue");
SendError(args);
}
callback(response);
_communication.Channel.BasicAck(args.DeliveryTag, false);
_log.LogTrace($"{correlationId}: Operation success");
}
catch (Exception e)
{
_log.LogError(e, $"Exception by processing amqp message");
SendError(args);
}
}, (sender, args) =>
{
_log.LogInformation("client consumer register");
});
}
/// <inheritdoc />
public async Task StartAsync(RequestDelegate requestDelegate, CancellationToken cancellationToken)
{
var host = _option.ServerName.Host;
await _communication.Init();
var declare = _communication.Declare(host, AmqpCommunication.ResourceRequestQueue, false);
_communication.Declare(host, AmqpCommunication.ResourceDelayQueue, false);
_communication.Declare(host, AmqpCommunication.ResourceErrorQueue, false);
_communication.CreateBasicConsumer(declare.QueueName, async(sender, args) =>
{
try
{
_log.LogTrace("Очередь {queueName}. Обработка запроса", declare.QueueName);
var context = await _converter.Parse(args, Features);
if (context != null)
{
await requestDelegate(context);
await SendResponse(args, context.Response);
_communication.Channel.BasicAck(args.DeliveryTag, false);
}
else
{
SendError(args);
}
}
catch (Exception e)
{
// Добавить отправку сообщения в очередь ожидания
_log.LogError(e, $"Ошибка при обработке сообщения");
SendError(args);
}
}, (sender, args) =>
{
_log.LogInformation($"Consumer {args.ConsumerTag} Registered");
});
}