public static async Task Run([EventHubTrigger(eventHubName: "twin-change", Connection = "TwinChangeEventHubConnectionString", ConsumerGroup = "%DevicePropertiesCacheConsumerGroup%")] EventData events, ILogger log)
{
try
{
events.Properties.TryGetValue("tenant", out object tenant);
if (tenant != null)
{
var cosmosDbRus = Convert.ToInt32(Environment.GetEnvironmentVariable("CosmosDBRus", EnvironmentVariableTarget.Process));
var cosmosDb = Environment.GetEnvironmentVariable("DevicePropertiesCacheDatabaseId", EnvironmentVariableTarget.Process);
string eventData = Encoding.UTF8.GetString(events.Body.Array);
DevicePropertiesCacheService dpService = new DevicePropertiesCacheService();
await dpService.UpdateDevicePropertiesAsync(eventData, Convert.ToString(tenant));
}
else
{
log.LogError("Error occurrred Tenant was not set");
throw new Exception("Error occurrred Tenant was not set");
}
}
catch (Exception ex)
{
log.LogError($"Error occurrred : {ex.Message} StackTrace: {ex.StackTrace} Inner Exception: {(string.IsNullOrEmpty(ex.StackTrace) ? string.Empty : ex.StackTrace)}");
throw ex;
}
}
public static async Task Run([EventHubTrigger(eventHubName: "lifecycle", Connection = "LifecycleEventHubConnectionString", ConsumerGroup = "%DevicePropertiesCacheConsumerGroup%")] EventData events, ILogger log)
{
try
{
events.Properties.TryGetValue("tenant", out object tenant);
if (tenant != null)
{
var cosmosDbRus = Convert.ToInt32(Environment.GetEnvironmentVariable("CosmosDBRus", EnvironmentVariableTarget.Process));
var cosmosDb = Environment.GetEnvironmentVariable("DevicePropertiesCacheDatabaseId", EnvironmentVariableTarget.Process);
string eventData = Encoding.UTF8.GetString(events.Body.Array);
DevicePropertiesCacheService dpService = new DevicePropertiesCacheService();
await dpService.UpdateDevicePropertiesAsync(eventData, Convert.ToString(tenant));
}
else
{
// This operation is added to take care of the migration of device twins from the ported IoT hubs
var document = JObject.Parse(Encoding.UTF8.GetString(events.Body.Array));
// The migration tool adds the tenant information while forming the request, we will pull that out of the body and use it for processing the request
if (document != null && document["tenant"] != null && !string.IsNullOrEmpty(Convert.ToString(document["tenant"])))
{
string tenentInfo = document["tenant"].ToString();
// once the tenant is pulled out remove it from the request body so that it is not save in the twin information
document.Property("tenant").Remove();
if (!string.IsNullOrEmpty(tenentInfo))
{
DevicePropertiesCacheService dpService = new DevicePropertiesCacheService();
await dpService.UpdateDevicePropertiesAsync(document.ToString(), Convert.ToString(tenentInfo));
}
}
else
{
// If the tenant information is still not there in the body we log an exception
log.LogError($"Error occurrred Tenant was not set");
}
}
}
catch (Exception ex)
{
log.LogError($"Error occurrred : {ex.Message} StackTrace: {ex.StackTrace} Inner Exception: {(string.IsNullOrEmpty(ex.StackTrace) ? string.Empty : ex.StackTrace)}");
throw ex;
}
}
