private async void TryAddDevice(SSDPMessage notifyMessage)
{
if (this.IsDeviceAdded(notifyMessage.UDN))
{
this.TryUpdateDevice(notifyMessage);
}
else
{
try
{
var request = WebRequest.Create(notifyMessage.Location);
using (var response = await request.GetResponseAsync())
{
using (var responseStream = response.GetResponseStream())
{
lock (this.devices)
{
if (this.IsDeviceAdded(notifyMessage.UDN) == false)
{
var location = new Uri(notifyMessage.Location);
var host = "{0}:{1}".F(location.Host, location.Port);
var device = ParseDevice(host, responseStream);
if (device != null)
{
device.MaxAge = TimeSpan.FromSeconds(notifyMessage.MaxAge);
device.LastCheckTime = DateTime.UtcNow;
this.devices.Add(device);
this.logger.Instance().Info("The device has been added", "DeviceName".As(device.FriendlyName), "DeviceUDN".As(device.UDN));
this.devicesActivity.OnNext(new DeviceActivityEventArgs <TDevice> {
Activity = DeviceActivity.Available, Device = device
});
this.ScheduleNextCheckForExpiredDevices();
}
}
}
}
}
}
catch (WebException ex)
{
this.logger.Instance().Warning(ex, "Failed to load description for device with UDN '{0}'".F(notifyMessage.UDN));
}
}
}
private void TryUpdateDevice(SSDPMessage notifyMessage)
{
lock (this.devices)
{
var device = GetDevice(notifyMessage.UDN);
if (device != null)
{
device.MaxAge = TimeSpan.FromSeconds(notifyMessage.MaxAge);
device.LastCheckTime = DateTime.UtcNow;
this.ScheduleNextCheckForExpiredDevices();
this.logger.Instance().Info("The device lifetime has been updated", "DeviceName".As(device.FriendlyName), "DeviceUDN".As(device.UDN), "MaxAge".As(notifyMessage.MaxAge));
}
}
}