rabbitmq-tutorials/dotnet/RPCServer.cs
2013-08-24 22:00:21 -05:00

63 lines
2.1 KiB
C#

using System;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System.Text;
class RPCServer
{
public static void Main()
{
var factory = new ConnectionFactory() { HostName = "localhost" };
using (var connection = factory.CreateConnection())
{
using (var channel = connection.CreateModel())
{
channel.QueueDeclare("rpc_queue", false, false, false, null);
channel.BasicQos(0, 1, false);
var consumer = new QueueingBasicConsumer(channel);
channel.BasicConsume("rpc_queue", false, consumer);
Console.WriteLine(" [x] Awaiting RPC requests");
while (true)
{
string response = null;
var ea =
(BasicDeliverEventArgs)consumer.Queue.Dequeue();
var body = ea.Body;
var props = ea.BasicProperties;
var replyProps = channel.CreateBasicProperties();
replyProps.CorrelationId = props.CorrelationId;
try
{
var message = Encoding.UTF8.GetString(body);
int n = int.Parse(message);
Console.WriteLine(" [.] fib({0})", message);
response = fib(n).ToString();
}
catch (Exception e)
{
Console.WriteLine(" [.] " + e.Message);
response = "";
}
finally
{
var responseBytes =
Encoding.UTF8.GetBytes(response);
channel.BasicPublish("", props.ReplyTo, replyProps,
responseBytes);
channel.BasicAck(ea.DeliveryTag, false);
}
}
}
}
}
private static int fib(int n)
{
if (n == 0 || n == 1) return n;
return fib(n - 1) + fib(n - 2);
}
}