private async void Page_Loaded(object sender, RoutedEventArgs e)
{
string serviceBusConnectionString = new ServiceBusConnectionStringBuilder(servicebusEndpoint, String.Empty, sharedAccessKeyName, sharedAccessKey).ToString();
queueClient = new QueueClient(serviceBusConnectionString, queueName, ReceiveMode.PeekLock);
// Handle messages received from the Service Bus queue
queueClient.RegisterMessageHandler(
async(message, token) =>
{
// Deserialize the data as patrol car data
string data = Encoding.UTF8.GetString(message.Body);
int pos = data.LastIndexOf('{');
data = data.Substring(pos);
PatrolCarData patrolCarData = JsonConvert.DeserializeObject <PatrolCarData>(data);
// Plot the position of the patrol car on the map
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
MapIcon patrolCarIcon = new MapIcon();
BasicGeoposition patrolCarPosition = new BasicGeoposition()
{
Latitude = patrolCarData.LocationLatitude,
Longitude = patrolCarData.LocationLongitude
};
// If the patrol car already exists then just update its location
MapIcon car = (MapIcon)MapControl.MapElements.FirstOrDefault(m => String.Compare((m as MapIcon).Title, patrolCarData.CarID) == 0);
if (car != null)
{
car.Location = new Geopoint(patrolCarPosition);
}
// Otherwise create a new icon and add it to the map
else
{
patrolCarIcon.Location = new Geopoint(patrolCarPosition);
patrolCarIcon.NormalizedAnchorPoint = new Point(0.5, 1.0);
patrolCarIcon.Title = patrolCarData.CarID;
patrolCarIcon.ZIndex = 0;
patrolCarIcon.Image = patrolCarImage;
MapControl.MapElements.Add(patrolCarIcon);
}
});
await queueClient.CompleteAsync(message.SystemProperties.LockToken);
}, new MessageHandlerOptions(async(args) =>
{
// Error handling - discard the message
})
);
}
private async void Page_Loaded(object sender, RoutedEventArgs e)
{
string serviceBusConnectionString = new ServiceBusConnectionStringBuilder(servicebusEndpoint, String.Empty, sharedAccessKeyName, sharedAccessKey).ToString();
queueClient = new QueueClient(serviceBusConnectionString, queueName, ReceiveMode.PeekLock);
cameraQueueClient = new QueueClient(serviceBusConnectionString, cameraQueueName, ReceiveMode.PeekLock);
// Handle messages received from the Service Bus patrol car queue
queueClient.RegisterMessageHandler(
async(message, token) =>
{
// Deserialize the data as patrol car data
string data = Encoding.UTF8.GetString(message.Body);
// Remove any leading preamble, before the start of the JSON text
int pos = data.LastIndexOf('{');
data = data.Substring(pos);
// Remove any extraneous content after the closing } of the JSON text
pos = data.LastIndexOf('}');
if (pos != 0)
{
data = data.Substring(0, pos + 1);
}
PatrolCarData patrolCarData = JsonConvert.DeserializeObject <PatrolCarData>(data);
// Plot the position of the patrol car on the map
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
BasicGeoposition patrolCarPosition = new BasicGeoposition()
{
Latitude = patrolCarData.LocationLatitude,
Longitude = patrolCarData.LocationLongitude
};
// If the patrol car already exists then just update its location
MapIcon car = (MapIcon)MapControl.MapElements.FirstOrDefault(m => String.Compare((m as MapIcon).Title, patrolCarData.CarID) == 0);
if (car != null)
{
car.Location = new Geopoint(patrolCarPosition);
}
// Otherwise create a new icon and add it to the map
else
{
car = new MapIcon();
car.Location = new Geopoint(patrolCarPosition);
car.NormalizedAnchorPoint = new Point(0.5, 1.0);
car.Title = patrolCarData.CarID;
car.ZIndex = 0;
car.Image = patrolCarImage;
MapControl.MapElements.Add(car);
}
});
await queueClient.CompleteAsync(message.SystemProperties.LockToken);
}, new MessageHandlerOptions(async(args) =>
{
// Error handling - discard the message
})
);
// Handle messages received from the Service Bus speed camera queue
cameraQueueClient.RegisterMessageHandler(
async(message, token) =>
{
// Deserialize the data as speed camera data
string data = Encoding.UTF8.GetString(message.Body);
// Remove any leading preamble, before the start of the JSON text
int pos = data.LastIndexOf('{');
data = data.Substring(pos);
// Remove any extraneous content after the closing } of the JSON text
pos = data.LastIndexOf('}');
if (pos != 0)
{
data = data.Substring(0, pos + 1);
}
SpeedCameraData speedCameraData = JsonConvert.DeserializeObject <SpeedCameraData>(data);
// Plot the position of the speed camera on the map
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
BasicGeoposition speedCameraPosition = new BasicGeoposition()
{
Latitude = speedCameraData.LocationLatitude,
Longitude = speedCameraData.LocationLongitude
};
// If the speed camera already exists then just update its observation
MapIcon speedCamera = (MapIcon)MapControl.MapElements.FirstOrDefault(m => String.Compare((m as MapIcon).Title, speedCameraData.CameraID) == 0);
if (speedCamera != null)
{
speedCamera.Title = $"Speed: {speedCameraData.Speed.ToString()} mph";
}
// Otherwise create a new icon and add it to the map
else
{
speedCamera = new MapIcon();
speedCamera.Location = new Geopoint(speedCameraPosition);
speedCamera.NormalizedAnchorPoint = new Point(0.5, 1.0);
speedCamera.Title = $"Speed: {speedCameraData.Speed.ToString()} mph";
speedCamera.ZIndex = 0;
speedCamera.Image = speedCameraImage;
MapControl.MapElements.Add(speedCamera);
}
});
await cameraQueueClient.CompleteAsync(message.SystemProperties.LockToken);
}, new MessageHandlerOptions(async(args) =>
{
// Error handling - discard the message
})
);
}