private static async Task TryGetAndPostMessages(CancellationToken ct)
{
//Demo Test: Generating Random messages at random intervals and send it to clients
Random rnd = new Random();
await Task.Delay(rnd.Next(1000, 3000), ct);
if (ct.IsCancellationRequested)
return;
Client[] clients = _clients.Values.ToArray();
Array.ForEach(clients, async (client) =>
{
SSEMessage msg = new SSEMessage() { clientID = client.id, payload = new Payload { message = getQuote() } };
bool res = await PostMessage(msg);
});
}
public static async Task<bool> PostMessage(SSEMessage message)
{
Client client;
int cnt = _clients.Count();
if (_clients.TryGetValue(message.clientID, out client))
{
try
{
if (message.payload.message == "DUMMY")
{
client.UpdateAccessTime();
}
else
{
string data = JsonConvert.SerializeObject(message.payload);
await client.WriteAndSend(data);
}
return true;
}
catch (System.Web.HttpException)
{
_RemoveClient(client.id);
}
catch (Exception)
{
//also needs to log here
_RemoveClient(client.id);
}
return false;
}
else
return false;
}
private static async Task TryGetAndPostMessages(CancellationToken ct)
{
//Demo Test: Generating Random messages at random intervals and send it to random clients
Random rnd = new Random();
await Task.Delay(rnd.Next(1000, 5000), ct);
if (ct.IsCancellationRequested)
return;
Client client = null;
//Get one Random client
lock (_clients)
{
int cnt = _clients.Count();
if (cnt > 0)
{
int num = rnd.Next(100000) % cnt;
client = _clients.Skip(num).Take(1).Select(c=>c.Value).First();
}
}
if (client == null)
return;
/*
//Remove the clients after random intervals simulating different task times for each client
if (DateTime.Now - client.CreatedTime > TimeSpan.FromSeconds(rnd.Next(60, 180)))
{
RemoveClient(client.id);
return;
}
*/
string[] words = new string[] { "Test", "How", "Messaging", "Working", "Random", "Words", "For", "Demo", "Purposes", "Only", "Needed" };
string message = "<b>Quote of the day</b>: <i>"+ string.Join(" ", words.Select(w => words[rnd.Next(0, 10)]).ToArray())+"</i>";
SSEMessage msg = new SSEMessage() { clientID = client.id, payload = new Payload { message = message } };
bool res = await PostMessage(msg);
}