private const string LED_CODE = "LED"; // LED equipment code
#endregion Fields
#region Methods
private static void HandleNotifications(IClientService service, Device device, CancellationToken token)
{
try
{
var timestamp = DateTime.UtcNow;
while (true)
{
// poll notification from the server
var notifications = service.PollNotifications(device.Id.Value, timestamp, token);
if (notifications == null)
continue;
// display information about received notification
foreach (var notification in notifications.Where(n =>
n.Name == "equipment" && n.GetParameter("equipment") == LED_CODE))
{
var message = "Device sent LED state change notification, new state: {0}";
Console.WriteLine(string.Format(message, notification.GetParameter("state")));
}
// update last received notification timestamp
timestamp = notifications.Max(n => n.Timestamp.Value);
}
}
catch (OperationCanceledException)
{
return;
}
}
/// <summary>
/// Updates device on behalf of device.
/// </summary>
/// <param name="device">The <see cref="Device"/> object.</param>
public async Task UpdateDevice(Device device)
{
if (device == null)
throw new ArgumentNullException("device");
if (string.IsNullOrEmpty(device.Id))
throw new ArgumentException("Device ID is null or empty", "device.Id");
//if (string.IsNullOrEmpty(device.Key))
// throw new ArgumentException("Device key is null or empty", "device.Key");
//if (device.Network != null)
//{
// if (string.IsNullOrEmpty(device.Network.Name))
// throw new ArgumentException("Device network name is null or empty!", "device.Network.Name");
//}
//if (device.DeviceClass != null)
//{
// if (string.IsNullOrEmpty(device.DeviceClass.Name))
// throw new ArgumentException("Device class name is null or empty!", "device.DeviceClass.Name");
// if (string.IsNullOrEmpty(device.DeviceClass.Version))
// throw new ArgumentException("Device class version is null or empty!", "device.DeviceClass.Version");
//}
await _restClient.Put(string.Format("device/{0}", device.Id), device);
}
async Task LoadDevice()
{
LoadingItems++;
try
{
device = await ClientService.Current.GetDeviceAsync(deviceId);
DefaultViewModel["Device"] = device;
}
catch (Exception ex)
{
new MessageDialog(ex.Message, "Error").ShowAsync();
}
LoadingItems--;
}