public RPCClient(IModel channel)
{
_channel = channel;
_replyQueueName = channel.QueueDeclare().QueueName;
_consumer = new EventingBasicConsumer(channel);
_callbackMapper = new ConcurrentDictionary <string, TaskCompletionSource <BaseMessage> >();
_consumer.Received += (model, ea) =>
{
if (!_callbackMapper.TryRemove(ea.BasicProperties.CorrelationId, out var tcs))
{
return;
}
tcs.TrySetResult(BaseMessage.FromBytes(ea.Body));
};
}
public RPCServer(IModel channel, string id, DateTime time)
{
_id = id;
_since = time;
channel.QueueDeclare(
queue: "rpc_queue",
durable: false,
exclusive: false,
autoDelete: false,
arguments: null
);
channel.BasicQos(
prefetchSize: 0,
prefetchCount: 1,
global: false
);
var consumer = new EventingBasicConsumer(channel);
channel.BasicConsume(
queue: "rpc_queue",
autoAck: false,
consumer: consumer
);
consumer.Received += (model, ea) =>
{
var body = ea.Body;
var props = ea.BasicProperties;
var replyProps = channel.CreateBasicProperties();
var message = BaseMessage.FromBytes(body);
if (message.SourceId == _id)
{
channel.BasicAck(
deliveryTag: ea.DeliveryTag,
multiple: false
);
return; // Discards messages from itself
}
Console.WriteLine(message.GenerateLog());
replyProps.CorrelationId = props.CorrelationId;
channel.BasicPublish(
exchange: string.Empty,
routingKey: props.ReplyTo,
basicProperties: replyProps,
body: new MasterStatusMessage(_id, _since).GetBytes()
);
channel.BasicAck(
deliveryTag: ea.DeliveryTag,
multiple: false
);
};
}
