public void InitializeParkingspots(List <Parkingspot> parkingspots, IModel channel)
{
foreach (var parkingspot in parkingspots)
{
IoTRequest request = createInitRequest(parkingspot);
long id = SendNewSource(request, channel, parkingspot.Queue);
parkingspot.SimulationStatus = ParkingspotSimulationStatus.CREATED;
parkingspot.ID = id;
}
}
static void SendStateChange(IModel channel, IoTRequest request, Parkingspot spot)
{
var props = channel.CreateBasicProperties();
props.ContentType = "application/json";
var s = JsonConvert.SerializeObject(request);
var b = Encoding.UTF8.GetBytes(s);
channel.BasicPublish("", spot.Queue, props, b);
}
public void switchState(Parkingspot spot)
{
ParkingspotStatus newstatus = Invert(spot.Status);
string lpid = null;
if (newstatus == ParkingspotStatus.TAKEN)
{
lpid = licenseplateIds[random.Next(licenseplateIds.Count)];
}
IoTRequest request = createChangeRequest(spot, lpid, newstatus);
SendStateChange(channel, request, spot);
spot.Status = newstatus;
spot.LicensePlateId = lpid;
}
private int SendNewSource(IoTRequest request, IModel channel, string queue)
{
channel.QueueDeclare(queue: queue, durable: true, exclusive: false, autoDelete: false);
var replyQueueName = channel.QueueDeclare().QueueName;
var props = channel.CreateBasicProperties();
props.ReplyTo = replyQueueName;
props.CorrelationId = Guid.NewGuid().ToString();
props.ContentType = "application/json";
var s = JsonConvert.SerializeObject(request);
var b = Encoding.UTF8.GetBytes(s);
channel.BasicPublish("", queue, props, b);
var consumer = new QueueingBasicConsumer(channel);
channel.BasicConsume(replyQueueName, true, consumer);
var ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue();
try
{
if (ea.BasicProperties.CorrelationId == props.CorrelationId)
{
IoTResponse resp = JsonConvert.DeserializeObject <IoTResponse>(Encoding.UTF8.GetString(ea.Body));
return((int)resp.identifier);
}
}
catch (Exception e)
{
}
finally
{
channel.QueueDelete(replyQueueName);
}
return(-1);
}
