public void Execute()
{
try
{
Logger.LogError("Start to execute Calculate");
lock (_lock)
{
var currentTime = DateTime.UtcNow;
var result = CalculateProcessor.Calculate();
_dbContext.Events.Add(new Event()
{
EventName = "Calculate",
Id = Guid.NewGuid(),
Time = currentTime,
Timeout = Convert.ToInt32(result.Time),
IsError = result.IsError
});
_dbContext.SaveChanges();
}
}
finally
{
}
}
private static void Main(string[] args)
{
var factory = new ConnectionFactory()
{
HostName = "localhost"
};
//criando a conexao
using (var connection = factory.CreateConnection())
//criando o canal e declarando a fila
using (var channel = connection.CreateModel()) {
channel.QueueDeclare(queue: "rpc_queue",
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
//o segundo parametro usado no BaicQos, serve para criarmos quantos server process quisermos.
channel.BasicQos(0, 1, false);
//criando um basic consumer para acessar a fila
var consumer = new QueueingBasicConsumer(channel);
channel.BasicConsume(queue: "rpc_queue",
noAck: false,
consumer: consumer);
Console.WriteLine(" [x] Awaiting RPC requests");
//usado para ficar pegando os requests e criando os responses
while (true)
{
CalculateResponse response = null;
//pegando o request
var ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue();
//pegando as informações do request
var body = ea.Body;
var props = ea.BasicProperties;
var replyProps = channel.CreateBasicProperties();
replyProps.CorrelationId = props.CorrelationId;
try {
var message = Encoding.UTF8.GetString(body);
var calculateRequest = JsonConvert.DeserializeObject <CalculateRequest>(message);
Console.WriteLine("--------------------Processing a new request!--------------------");
Console.WriteLine();
Console.WriteLine("Fila:{0}", ea.BasicProperties.ReplyTo);
Console.WriteLine();
Console.WriteLine(" [Request] - ValueX:{0}, ValueY:{1}, Operation:{2}", calculateRequest.ValueX, calculateRequest.ValueY, calculateRequest.Operation.ToString());
//preenchendo o response
response = CalculateProcessor.Calculate(calculateRequest);
Console.WriteLine(" [Response] - Result:{0}", response.Result);
} catch (Exception e) {
Console.WriteLine(" [Exception] " + e.Message);
response = new CalculateResponse()
{
Result = 0
};
} finally {
//Convertendo o response
var responseJson = JsonConvert.SerializeObject(response);
//publicando o response na fila de resposta para o cliente
var responseBytes = Encoding.UTF8.GetBytes(responseJson);
channel.BasicPublish(exchange: "",
routingKey: props.ReplyTo,
basicProperties: replyProps,
body: responseBytes);
channel.BasicAck(deliveryTag: ea.DeliveryTag,
multiple: false);
}
}
}
}
