public void Run()
{
if (_timer != null && _timer.Enabled)
{
return;
}
var url = _hubConfiguration.GetHubContainingSiteUrl();
try
{
if (_connection == null)
{
// connect to the hub
_connection = new HubConnection(url);
// create a proxy
_hub = _connection.CreateProxy("siteMonitorNotificationHub");
// whenever a site is added
_hub.On <string>("siteAdded", (siteUrl) =>
{
_siteRepository.Add(siteUrl);
_hub.Invoke("addSiteToGui", siteUrl);
});
// whenever a site is removed
_hub.On <string>("siteRemoved", (siteUrl) =>
{
_siteRepository.Remove(siteUrl);
_hub.Invoke("removeSiteFromGui", siteUrl);
});
// now start the connection
_connection.Start().Wait();
}
_timer = new Timer(5000);
_timer.Elapsed += (s, e) =>
{
_timer.Stop();
_siteRepository.GetUrls()
.ForEach(x =>
{
var result = false;
try
{
var output = new WebClient().DownloadString(x);
result = true;
Log(x + " is up");
}
catch (Exception ex)
{
result = false;
Log(x + " is down");
}
// invoke a method on the hub
_hub.Invoke("ReceiveMonitorUpdate", new
{
Url = x,
Result = result
});
});
_timer.Start();
Log("All sites pinged. Sleeping...");
System.Threading.Thread.Sleep(3000);
};
_timer.Start();
}
catch (Exception x)
{
if (_timer != null)
{
_timer.Stop();
}
}
}
public void RemoveSite(string url)
{
_repository.Remove(url);
Clients.All.siteRemovedFromGui(url);
}
