private async Task ProcessDeviceInfo(dynamic deviceInfo)
{
string versionAsString = "";
if (deviceInfo.Version != null)
{
dynamic version = deviceInfo.Version;
versionAsString = version.ToString();
}
switch (versionAsString)
{
case SampleDeviceFactory.VERSION_1_0:
//Data coming in from the simulator can sometimes turn a boolean into 0 or 1.
//Check the HubEnabledState since this is actually displayed and make sure it's in a good format
DeviceSchemaHelper.FixDeviceSchema(deviceInfo);
dynamic id = DeviceSchemaHelper.GetConnectionDeviceId(deviceInfo);
string name = id.ToString();
Trace.TraceInformation("ProcessEventAsync -- DeviceInfo: {0}", name);
await _deviceLogic.UpdateDeviceFromDeviceInfoPacketAsync(deviceInfo);
break;
default:
Trace.TraceInformation("Unknown version {0} provided in Device Info packet", versionAsString);
break;
}
}
/// <summary>
/// Used by the event processor to update the initial data for the device
/// without deleting the CommandHistory and the original created date
/// This assumes the device controls and has full knowledge of its metadata except for:
/// - CreatedTime
/// - CommandHistory
/// </summary>
/// <param name="device">Device information to save to the backend Device Registry</param>
/// <returns>Combined device that was saved to registry</returns>
public async Task <dynamic> UpdateDeviceFromDeviceInfoPacketAsync(dynamic device)
{
if (device == null)
{
throw new ArgumentNullException("device");
}
// Get original device document
var connectionDeviceId = DeviceSchemaHelper.GetConnectionDeviceId(device);
dynamic existingDevice = await GetDeviceAsync(connectionDeviceId);
// Save the command history, original created date, and system properties (if any) of the existing device
if (DeviceSchemaHelper.GetDeviceProperties(existingDevice) != null)
{
dynamic deviceProperties = DeviceSchemaHelper.GetDeviceProperties(device);
deviceProperties.CreatedTime = DeviceSchemaHelper.GetCreatedTime(existingDevice);
}
device.CommandHistory = existingDevice.CommandHistory;
// Copy the existing system properties, or initialize them if they do not exist
if (existingDevice.SystemProperties != null)
{
device.SystemProperties = existingDevice.SystemProperties;
}
else
{
DeviceSchemaHelper.InitializeSystemProperties(device, null);
}
// Merge device back to existing so we don't drop missing data
if (existingDevice is JObject)
{
//merge union of objects to avoid duplicates
var MergeSetting = new JsonMergeSettings
{
MergeArrayHandling = MergeArrayHandling.Union
};
existingDevice.Merge(device, MergeSetting);
}
// If there is Telemetry or Command objects from device, replace instead of merge
if (device.Telemetry != null)
{
existingDevice.Telemetry = device.Telemetry;
}
if (device.Commands != null)
{
existingDevice.Commands = device.Commands;
}
return(await _deviceRegistryCrudRepository.UpdateDeviceAsync(existingDevice));
}