Permalink
Switch branches/tags
Nothing to show
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
68 lines (60 sloc) 2.28 KB
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(queue: "rpc_queue", durable: false, exclusive: false, autoDelete: false, arguments: null);
channel.BasicQos(0, 1, false);
var consumer = new EventingBasicConsumer(channel);
channel.BasicConsume(queue: "rpc_queue", autoAck: false, consumer: consumer);
Console.WriteLine(" [x] Awaiting RPC requests");
consumer.Received += (model, ea) =>
{
string response = null;
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(exchange: "", routingKey: props.ReplyTo, basicProperties: replyProps, body: responseBytes);
channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
}
};
Console.WriteLine(" Press [enter] to exit.");
Console.ReadLine();
}
}
/// <summary>
/// Assumes only valid positive integer input.
/// Don't expect this one to work for big numbers, and it's probably the slowest recursive implementation possible.
/// </summary>
private static int fib(int n)
{
if (n == 0 || n == 1)
{
return n;
}
return fib(n - 1) + fib(n - 2);
}
}