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Program.cs
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Program.cs
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using System;
using System.Data;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MQTT
{
class Program
{
private static int SubscriberCount { get; set; }
public static int ConnectedClients { get; set; }
private static int PublisherCount { get; set; }
private static int PublishingRateSec { get; set; }
private static readonly Random Rng = new Random();
static async Task Main(string[] args)
{
ConnectedClients = 0;
Console.WriteLine("***********************************************************");
Console.WriteLine("** MQTT IoT Connection Tester **");
Console.WriteLine("***********************************************************");
Console.Write($"Enter amount of Subscriber: ");
var subscriberCount = 0;
while (!int.TryParse(Console.ReadLine(), out subscriberCount))
{
Console.Write($"Enter amount of Subscriber: ");
}
SubscriberCount = subscriberCount;
//Console.Write($"Enter amount of Publishers: ");
//var publisherCount = 0;
//while (!int.TryParse(Console.ReadLine(), out publisherCount))
//{
// Console.Write($"Enter amount of Publishers: ");
//}
//PublisherCount = publisherCount;
//Console.Write($"Enter Publisher rate in sec: ");
//var publisherRate = 0;
//while (!int.TryParse(Console.ReadLine(), out publisherRate))
//{
// Console.Write($"Enter Publisher rate in sec: ");
//}
//PublishingRateSec = publisherRate;
Console.WriteLine($"Subscribers Set To {SubscriberCount}");
//Console.WriteLine($"Publishers Set To {PublisherCount}");
//Console.WriteLine($"Publishers Rate Set To {PublishingRateSec} sec");
PrintPublishStats();
//await SubscriberTest();
//await PublishFromApiTest();
//Console.WriteLine($"{DateTime.Now:g} - Starting Publishers");
//await PublisherTest();
//Console.WriteLine($"{DateTime.Now:g} - Publishers sending messages");
SubscriberTestSpinning();
Console.WriteLine($"Press ENTER to exit at anytime....");
while (Console.ReadKey(true).Key != ConsoleKey.Enter)
{
Console.WriteLine($"Press ENTER to exit....");
}
}
private static async Task SubscriberTest()
{
Console.WriteLine($"{DateTime.Now:g} - Connecting Subscribers");
while (Mqtt.Clients.Count < SubscriberCount)
{
var id = Guid.NewGuid().ToString();
await Mqtt.Connect(id, new[] { $"d/{id}" });
}
Console.WriteLine($"{DateTime.Now:g} - All Subscribers Connected \t\t\t\t Avg Connection Time: {Mqtt.ConnectionTimes.Average()} ms");
await Task.Delay(2500);
}
private static void SubscriberTestSpinning()
{
Console.WriteLine($"{DateTime.Now:g} - Connecting Subscribers");
while (true)
{
if (ConnectedClients < SubscriberCount)
{
ConnectedClients++;
var id = Guid.NewGuid().ToString();
var task = Mqtt.Connect(id, new[] {$"d/{id}"});
Task.Run(() => task);
}
else
{
Thread.Sleep(1000);
}
}
}
private static async Task PublishFromApiTest()
{
Console.WriteLine($"{DateTime.Now:g} - Connecting API");
var client = await Mqtt.GetClient($"api-{Guid.NewGuid().ToString().Substring(0, 8)}", Mqtt.Clients.Select(x => "a/" + x.Key).ToArray());
var timer = new System.Timers.Timer { Interval = PublishingRateSec * 1000 };
timer.Elapsed += async (sender, args) =>
{
await Mqtt.Publish(client, Mqtt.GetRandomTopic());
};
timer.Start();
}
private static async Task PublisherTest()
{
while (Mqtt.Publishers.Count < PublisherCount)
{
StartRandomPublisher();
await Task.Delay(Rng.Next(PublishingRateSec * 1000));
}
}
private static void StartRandomPublisher()
{
var publisher = Mqtt.GetPublisher();
if (publisher == null)
{
return;
}
Console.WriteLine($"{DateTime.Now:g} - Starting Publisher {publisher.Value.Key}");
var timer = new System.Timers.Timer { Interval = PublishingRateSec * 1000 };
timer.Elapsed += async (sender, args) =>
{
await Mqtt.Publish(publisher.Value.Value, $"a/{publisher.Value.Key}");
};
timer.Start();
}
private static void PrintPublishStats()
{
var timer = new System.Timers.Timer { Interval = 15000 };
timer.Elapsed += (sender, args) =>
{
var min = Mqtt.MessageSendTimes.Any() ? Mqtt.MessageSendTimes.Min() : 0;
var avg = Mqtt.MessageSendTimes.Any() ? Mqtt.MessageSendTimes.Average() : 0;
var max = Mqtt.MessageSendTimes.Any() ? Mqtt.MessageSendTimes.Max() : 0;
Console.WriteLine("---------------------------------------------------------------------------------------------------------");
Console.WriteLine($"{DateTime.Now:g} - Clients: {Mqtt.Clients.Count}/{SubscriberCount}");
//Console.WriteLine($"{DateTime.Now:g} - Subscribers: {Mqtt.Clients.Count}/{SubscriberCount} \t Publishers: {Mqtt.Publishers.Count}/{PublisherCount} \t Rate: {PublishingRateSec} sec");
//Console.WriteLine($"{DateTime.Now:g} - Message Latency \t Min:{min:f0} ms \t Avg:{avg:f0} ms \t Max:{max:f0} ms");
Console.WriteLine("---------------------------------------------------------------------------------------------------------");
};
timer.Start();
}
}
}