protected Details(
string iothubConnectionString,
string eventhubCompatibleEndpointWithEntityPath,
string deviceId,
string certificateFileName,
string edgeHostName,
bool useWebSockets
)
{
this.iothubConnectionString = iothubConnectionString;
this.eventhubCompatibleEndpointWithEntityPath = eventhubCompatibleEndpointWithEntityPath;
this.deviceId = deviceId;
this.certificateFileName = certificateFileName;
this.edgeHostName = edgeHostName;
if (useWebSockets)
{
this.serviceClientTransportType = ServiceClientTransportType.Amqp_WebSocket_Only;
this.eventHubClientTransportType = EventHubClientTransportType.AmqpWebSockets;
this.deviceClientTransportType = DeviceClientTransportType.Mqtt_WebSocket_Only;
}
else
{
this.serviceClientTransportType = ServiceClientTransportType.Amqp;
this.eventHubClientTransportType = EventHubClientTransportType.Amqp;
this.deviceClientTransportType = DeviceClientTransportType.Mqtt;
}
}
static async Task <int> MainAsync()
{
Logger.LogInformation("DirectMethodCloudSender Main() started.");
IConfiguration configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("config/appsettings.json", optional: true)
.AddEnvironmentVariables()
.Build();
string serviceClientConnectionString = Preconditions.CheckNonWhiteSpace(configuration.GetValue <string>("ServiceClientConnectionString"), "ServiceClientConnectionString");
// Get device id of this device, exposed as a system variable by the iot edge runtime
string targetDeviceId = configuration.GetValue <string>("IOTEDGE_DEVICEID");
string targetModuleId = configuration.GetValue("TargetModuleId", "DirectMethodReceiver");
TransportType transportType = configuration.GetValue("ClientTransportType", TransportType.Amqp_Tcp_Only);
TimeSpan dmDelay = configuration.GetValue("DirectMethodDelay", TimeSpan.FromSeconds(5));
(CancellationTokenSource cts, ManualResetEventSlim completed, Option <object> handler) = ShutdownHandler.Init(TimeSpan.FromSeconds(5), null);
await CallDirectMethodFromCloud(serviceClientConnectionString, targetDeviceId, targetModuleId, transportType, dmDelay, cts);
completed.Set();
handler.ForEach(h => GC.KeepAlive(h));
Logger.LogInformation("DirectMethodCloudSender Main() finished.");
return(0);
}
private static ITransportSettings CreateTransportSettingsFromName(Microsoft.Azure.Devices.Client.TransportType transportType, string proxyAddress)
{
switch (transportType)
{
case Microsoft.Azure.Devices.Client.TransportType.Http1:
return(new Http1TransportSettings
{
Proxy = proxyAddress == null ? null : new WebProxy(proxyAddress),
});
case Microsoft.Azure.Devices.Client.TransportType.Amqp:
case Microsoft.Azure.Devices.Client.TransportType.Amqp_Tcp_Only:
return(new AmqpTransportSettings(TransportType.Amqp_Tcp_Only)); // Overriding as per error message if using Amqp only
case Microsoft.Azure.Devices.Client.TransportType.Amqp_WebSocket_Only:
return(new AmqpTransportSettings(transportType)
{
Proxy = proxyAddress == null ? null : new WebProxy(proxyAddress),
});
case Microsoft.Azure.Devices.Client.TransportType.Mqtt:
case Microsoft.Azure.Devices.Client.TransportType.Mqtt_Tcp_Only:
return(new MqttTransportSettings(TransportType.Mqtt_Tcp_Only)); // Overriding as per error message if using Mqtt only
case Microsoft.Azure.Devices.Client.TransportType.Mqtt_WebSocket_Only:
return(new MqttTransportSettings(transportType)
{
Proxy = proxyAddress == null ? null : new WebProxy(proxyAddress),
});
}
throw new NotSupportedException($"Unknown transport: '{transportType}'.");
}
public static DeviceClient CreateSelfSignedDevice(TransportType transport, string deviceId)
{
Console.Write("Connecting to hub.... ");
var registryManager = RegistryManager.CreateFromConnectionString(hubConnStr);
Console.WriteLine("done");
Console.Write("Creating device with self signed key.... ");
var certificate = GetSelfSigned();
var device = new Microsoft.Azure.Devices.Device(deviceId)
{
Authentication = new AuthenticationMechanism
{
X509Thumbprint = new X509Thumbprint
{
PrimaryThumbprint = certificate.Thumbprint
}
}
};
var createdDevice = registryManager.AddDeviceAsync(device).Result;
Console.WriteLine($"done. Id='{deviceId}', X509Thumbprint = '{createdDevice.Authentication.X509Thumbprint.PrimaryThumbprint}'");
Console.Write("Connecting to device... ");
var auth = new DeviceAuthenticationWithX509Certificate(deviceId, certificate);
var client = DeviceClient.Create(hubUrl, auth, transport);
Console.WriteLine("done");
return(client);
}
public static DeviceClient CreateClient(TransportType transport, string deviceId)
{
Console.WriteLine("Connecting to IoT Hub with certificate:");
var certificate = GetSelfSigned();
DeviceAuthenticationWithX509Certificate auth = new DeviceAuthenticationWithX509Certificate(deviceId, certificate);
Console.WriteLine($"----------\n{auth.Certificate}----------");
DeviceClient client = DeviceClient.Create(hubUrl, auth, transport);
return(client);
}
public async Task DisposeAsync()
{
string deviceConnectionString = Environment.GetEnvironmentVariable("IoTHubDeviceConnectionString");
Microsoft.Azure.Devices.Client.TransportType transportType = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
using (DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(deviceConnectionString, transportType))
{
// purge messaging services
output.WriteLine("Purging Service Bus messages");
PurgeServiceBusMessagesAsync(workOrderQueueClient, output);
PurgeServiceBusMessagesAsync(createAlertErrorQueueClient, output);
PurgeServiceBusMessagesAsync(createAlertTopicSubscriptionClient, output);
output.WriteLine("Purging IoT Hub messages");
await PurgeIoTHubMessagesAsync(deviceClient);
// find the case (title property is equal to alertid)
output.WriteLine("Deleting Dynamics entities");
QueryExpression caseQueryExpression = FindEntityWithPropertyValue("incident", "title", uniqueFaultName);
EntityCollection caseQueryExpressionResult = this.cdsServiceClient.RetrieveMultiple(caseQueryExpression);
if (caseQueryExpressionResult != null && caseQueryExpressionResult.Entities.Count > 0)
{
Entity retrievedCase = caseQueryExpressionResult.Entities[0];
this.cdsServiceClient.Delete("incident", retrievedCase.Id);
output.WriteLine($"Deleted incident entity with id {retrievedCase.Id}");
}
// find the work order (msdyn_workordersummary property is equal to alertid) associated with the alert
QueryExpression workOrderQueryExpression = FindEntityWithPropertyValue("msdyn_workorder", "msdyn_workordersummary", uniqueFaultName, true);
EntityCollection workOrderQueryExpressionResult = this.cdsServiceClient.RetrieveMultiple(workOrderQueryExpression);
if (workOrderQueryExpressionResult != null && workOrderQueryExpressionResult.Entities.Count > 0)
{
// find the resource requirement attached to work order
Entity retrievedWorkOrder = workOrderQueryExpressionResult.Entities[0];
string workOrderName = (string)retrievedWorkOrder["msdyn_name"];
QueryExpression resourceRequirementExpression = FindEntityWithPropertyValue("msdyn_resourcerequirement", "msdyn_name", workOrderName);
EntityCollection resourceRequirementExpressionResult = this.cdsServiceClient.RetrieveMultiple(resourceRequirementExpression);
if (resourceRequirementExpressionResult != null && resourceRequirementExpressionResult.Entities.Count > 0)
{
Entity retrievedResourceRequirement = resourceRequirementExpressionResult.Entities[0];
this.cdsServiceClient.Delete("msdyn_resourcerequirement", retrievedResourceRequirement.Id);
output.WriteLine($"Deleted msdyn_resourcerequirement entity with id {retrievedResourceRequirement.Id}");
}
this.cdsServiceClient.Delete("msdyn_workorder", retrievedWorkOrder.Id);
output.WriteLine($"Deleted msdyn_workorder entity with id {retrievedWorkOrder.Id}");
}
foreach (KeyValuePair <Guid, string> pair in entitiesToDelete)
{
this.cdsServiceClient.Delete(pair.Value, pair.Key);
output.WriteLine($"Deleted {pair.Value} entity with id {pair.Key}");
}
entitiesToDelete.Clear();
}
}
public async void RunE2ETest()
{
string deviceConnectionString = Environment.GetEnvironmentVariable("IoTHubDeviceConnectionString");
string maxRetriesEnvironmentVariable = Environment.GetEnvironmentVariable("VerificationMaxRetries");
string retrySecondsEnvironmentVariable = Environment.GetEnvironmentVariable("VerificationRetrySeconds");
string shouldCreateWorkOrderEnvironmentVariable = Environment.GetEnvironmentVariable("ShouldCreateWorkOrder");
int maxRetries = maxRetriesEnvironmentVariable != null?int.Parse(maxRetriesEnvironmentVariable) : 10;
int retrySeconds = retrySecondsEnvironmentVariable != null?int.Parse(retrySecondsEnvironmentVariable) : 5;
bool shouldCreateWorkOrder = shouldCreateWorkOrderEnvironmentVariable != null?bool.Parse(shouldCreateWorkOrderEnvironmentVariable) : false;
Microsoft.Azure.Devices.Client.TransportType transportType = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
using (DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(deviceConnectionString, transportType))
{
// generate unique GUIDs
string uniqueAssetName = Guid.NewGuid().ToString();
string uniqueAssetPath = Guid.NewGuid().ToString();
uniqueFaultName = Guid.NewGuid().ToString();
output.WriteLine($"Generated unique AssetName - {uniqueAssetName}");
output.WriteLine($"Generated unique AssetPath - {uniqueAssetPath}");
output.WriteLine($"Generated unique FaultName - {uniqueFaultName}");
// send message to IoTHub
output.WriteLine("Sending message to IoT Hub");
string currentISOTimeString = DateTime.UtcNow.ToString("o");
await SendIconicsFaultDataToIoTHubAsync(deviceClient, uniqueAssetName, uniqueAssetPath, uniqueFaultName, "Active", currentISOTimeString);
// verify Dynamics Alert and Asset
output.WriteLine("Attempting Dynamics Alert and Asset verification");
AssetAlertVerification assetAlertVerification = VerifyDynamicsAssetAndAlert(maxRetries, retrySeconds, uniqueAssetName, uniqueFaultName);
// create WorkOrder if necessary
if (shouldCreateWorkOrder)
{
CreateWorkOrderIfNecessary(assetAlertVerification.verifiedAlertId);
}
EventHubConsumerClient consumer = new EventHubConsumerClient(EventHubConsumerClient.DefaultConsumerGroupName, Environment.GetEnvironmentVariable("IoTHubEventHubEndpoint"), Environment.GetEnvironmentVariable("IoTHubEventHubName"));
// verify work order acknowledgement in IoTHub
output.WriteLine("Attempting IoT Hub work order acknowledgement verification");
bool iotHubMessageVerified = await VerifyWorkOrderAcknowledgementAsync(consumer, maxRetries, retrySeconds, uniqueAssetPath, uniqueFaultName);
// assert
Assert.True(assetAlertVerification.assetVerified);
Assert.True(assetAlertVerification.alertVerified);
Assert.True(iotHubMessageVerified);
}
}
private async void Button_Click_Device(object sender, RoutedEventArgs e)
{
string s_port = "22";// tbSvcTimeout2.Text;
int port = int.Parse(s_port, CultureInfo.InvariantCulture);
string s_deviceConnectionString = Azure_IoTHub_Connections.MyConnections.DeviceConnectionString;
Microsoft.Azure.Devices.Client.TransportType s_transportType = Microsoft.Azure.Devices.Client.TransportType.Amqp;
string s_deviceId = Azure_IoTHub_Connections.MyConnections.DeviceId;
await Task.Run(() =>
{
try
{
port = int.Parse(s_port, CultureInfo.InvariantCulture);
using (DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(s_deviceConnectionString, s_transportType))
{
if (deviceClient == null)
{
Console.WriteLine("Failed to create DeviceClient!");
return;
}
var sample = new DeviceStreamSample(deviceClient, "localhost", port, UpdateDeviceOutputText, OnDeviceStatusUpdate);
sample.RunSampleAsync(new CancellationTokenSource()).GetAwaiter().GetResult();
}
//if (DeviceBasicMode)
// DeviceStream_Device.RunDevice(device_cs, OnDeviceRecvTextIO).GetAwaiter().GetResult();
//if (!DeviceUseCustomClass)
// DeviceStream_Device.RunDevice(device_cs, OnDeviceRecvTextIO, OnDeviceStatusUpdate, ActionCommand, AppSettingsValues.Settings.KeepDeviceListening ).GetAwaiter().GetResult();
//else
// DeviceStream_Device.RunDevice(device_cs, OnDeviceRecvTextIO, OnDeviceStatusUpdate, ActionCommand, AppSettingsValues.Settings.KeepDeviceListening, new DeviceSvcCurrentSettings_Example()).GetAwaiter().GetResult();
}
catch (TaskCanceledException)
{
OnDeviceStatusUpdate("0 Error App.RunClient(): Task cancelled");
}
catch (OperationCanceledException)
{
OnDeviceStatusUpdate("0 Error App.RunClient(): Operation cancelled");
}
catch (Exception ex)
{
OnDeviceStatusUpdate("0 Error App.RunClient(): " + ex.Message);
}
});
}
public async Task <bool> Connect()
{
string endPointURI = _APIURL + "device-api/DeviceAuth/" + _IoTDeviceID;
string IoTDeviceString = await callAPIService("GET", endPointURI, null);
dynamic IoTDeviceJSONObj = JObject.Parse(IoTDeviceString);
_IoTHubName = IoTDeviceJSONObj.IoTHubName;
_IoTHubProtocol = IoTDeviceJSONObj.IoTHubProtocol;
_IoTHubAuthenticationType = IoTDeviceJSONObj.IoTHubAuthenticationType;
_IoTDeviceKey = IoTDeviceJSONObj.DeviceKey;
_ContainerName = IoTDeviceJSONObj.ContainerName;
_CertificateFileName = IoTDeviceJSONObj.CertificateFileName;
_CertificatePassword = IoTDeviceJSONObj.CertificatePassword;
try
{
Microsoft.Azure.Devices.Client.TransportType protocol = Microsoft.Azure.Devices.Client.TransportType.Http1;
//MessageBox.Show("HTTP1");
switch (_IoTHubProtocol.ToLower())
{
case "amqp":
protocol = Microsoft.Azure.Devices.Client.TransportType.Amqp;
break;
case "mqtt":
protocol = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
break;
case "https":
protocol = Microsoft.Azure.Devices.Client.TransportType.Http1;
break;
}
if (_CDSClient == null)
{
_CDSClient = DeviceClient.Create(_IoTHubName, new DeviceAuthenticationWithRegistrySymmetricKey(_IoTDeviceID, _IoTDeviceKey), protocol);
_CDSClient.OperationTimeoutInMilliseconds = 86400000;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
//MessageBox.Show(ex.ToString());
}
return(true);
}
// Example:
// DeviceLoad.exe {OutputStorageConnectionString} {DeviceClientEndpoint} {DevicePerVm} {MessagePerMin} {DurationInMin} {BatchJobId} {DeviceIdPrefix} [MessageFormat]
// OutputStorageConnectionString: DefaultEndpointsProtocol=https;AccountName={name};AccountKey={key};EndpointSuffix={core.windows.net}
// DeviceClientEndpoint: HostName={http://xx.chinacloudapp.cn};SharedAccessKeyName=owner;SharedAccessKey={key}
static void Main(string[] args)
{
setting = Setting.Parse(args);
if (setting == null)
{
Environment.Exit(-1);
}
ServicePointManager.DefaultConnectionLimit = 200;
if (!Enum.TryParse(setting.Transport, out transport))
{
transport = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
}
wallclock = Stopwatch.StartNew();
var devices = CreateDevices().Result;
SendMessages(devices).Wait();
}
public async void ValidateDynamicsInActiveAlert()
{
string deviceConnectionString = Environment.GetEnvironmentVariable("IoTHubDeviceConnectionString");
string maxRetriesEnvironmentVariable = Environment.GetEnvironmentVariable("VerificationMaxRetries");
string retrySecondsEnvironmentVariable = Environment.GetEnvironmentVariable("VerificationRetrySeconds");
string shouldCreateWorkOrderEnvironmentVariable = Environment.GetEnvironmentVariable("ShouldCreateWorkOrder");
int maxRetries = maxRetriesEnvironmentVariable != null?int.Parse(maxRetriesEnvironmentVariable) : 10;
int retrySeconds = retrySecondsEnvironmentVariable != null?int.Parse(retrySecondsEnvironmentVariable) : 5;
Microsoft.Azure.Devices.Client.TransportType transportType = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
using (DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(deviceConnectionString, transportType))
{
// generate unique GUIDs
string uniqueAssetName = Guid.NewGuid().ToString();
string uniqueAssetPath = Guid.NewGuid().ToString();
uniqueFaultName = Guid.NewGuid().ToString();
output.WriteLine($"Generated unique AssetName - {uniqueAssetName}");
output.WriteLine($"Generated unique AssetPath - {uniqueAssetPath}");
output.WriteLine($"Generated unique FaultName - {uniqueFaultName}");
// send message to IoTHub
output.WriteLine("Sending message to IoT Hub");
string currentISOTimeString = DateTime.UtcNow.ToString("o");
await SendIconicsFaultDataToIoTHubAsync(deviceClient, uniqueAssetName, uniqueAssetPath, uniqueFaultName, "Active", currentISOTimeString);
// verify Dynamics Alert and Asset
output.WriteLine("Attempting Dynamics Alert and Asset verification");
AssetAlertVerification assetAlertVerification = VerifyDynamicsAssetAndAlert(maxRetries, retrySeconds, uniqueAssetName, uniqueFaultName);
output.WriteLine("Sending message to IoT Hub with Fault State as InActive");
await SendIconicsFaultDataToIoTHubAsync(deviceClient, uniqueAssetName, uniqueAssetPath, uniqueFaultName, "InActive", currentISOTimeString);
bool inActiveAlertVerified = VerifyDynamicsInActiveAlert(maxRetries, retrySeconds, uniqueFaultName);
// assert
Assert.True(assetAlertVerification.assetVerified);
Assert.True(assetAlertVerification.alertVerified);
Assert.True(inActiveAlertVerified);
}
}
static async Task <DeviceBenchmarkEntry> StartClient(string IoTHub, string IoTDevicePrefix, int deviceNumber, string commonKey, int maxMessages, int messageSize, Microsoft.Azure.Devices.Client.TransportType transportType)
{
string connectionString = "HostName=" + IoTHub + ";DeviceId=" + IoTDevicePrefix + deviceNumber + ";SharedAccessKey=" + commonKey;
string deviceName = IoTDevicePrefix + deviceNumber;
DateTime startTime = DateTime.Now;
try
{
DeviceClient device = DeviceClient.CreateFromConnectionString(connectionString, transportType);
await device.OpenAsync();
int mycounter = 1;
Console.WriteLine($"Device {deviceName} started");
DateTime startTimeWithoutConnect = DateTime.Now;
while (mycounter <= maxMessages)
{
var IoTMessage = new Microsoft.Azure.Devices.Client.Message(new byte[messageSize]);
await device.SendEventAsync(IoTMessage);
mycounter++;
}
DateTime endTimeWithoutConnect = DateTime.Now;
double messagesPerSecondWithoutConnect = maxMessages / (endTimeWithoutConnect - startTimeWithoutConnect).TotalSeconds;
Console.WriteLine($"Device {deviceName}: Messages Per Second Without Connect: { messagesPerSecondWithoutConnect}");
await device.CloseAsync();
DateTime endTime = DateTime.Now;
double messagesPerSecond = maxMessages / (endTime - startTime).TotalSeconds;
Console.WriteLine($"Device {deviceName}: Messages Per Second: { messagesPerSecond}");
Console.WriteLine($"Device {deviceName} ended");
DeviceBenchmarkEntry benchmarkEntry = new DeviceBenchmarkEntry()
{
StartTime = startTime,
EndTime = endTime,
StartTimeWithoutConnect = startTimeWithoutConnect,
EndTimeWithoutConnect = endTimeWithoutConnect,
DeviceName = deviceName,
MaxMessages = maxMessages,
MessageSize = messageSize,
MessagePerSecond = messagesPerSecond,
MessagePerSecondWithoutConnect = messagesPerSecondWithoutConnect
};
return(benchmarkEntry);
}
catch (Exception er)
{
Console.WriteLine($"Error starting device: {deviceName} error: {er.InnerException.Message}");
}
return(null);
}
static void Main(string[] args)
{
CommandLine.Parser.Default.ParseArguments <Options>(args)
.WithParsed <Options>(opts =>
{
string IoTHub = opts.IotHubConnectionString.Split(';')[0].Split('=')[1];
Console.WriteLine("Creating Devices");
CreateDevices(opts.DeviceCount, opts.IotHubConnectionString).Wait();
// Messagesize
if (opts.MessageSize > 262143)
{
Console.WriteLine($"Setting MessageSize to maximum of {MAXMESSAGESIZE}");
MessageSize = MAXMESSAGESIZE;
}
else
{
MessageSize = opts.MessageSize;
}
// Transporttype
switch (opts.TransportType)
{
case "MQTT":
TransportType = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
break;
case "AMQP":
TransportType = Microsoft.Azure.Devices.Client.TransportType.Amqp;
break;
case "HTTP":
TransportType = Microsoft.Azure.Devices.Client.TransportType.Http1;
break;
default:
TransportType = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
break;
}
Console.WriteLine($"Starting Devices: DeviceCount: {opts.DeviceCount} MaxMessages:{opts.MaxMessages} MessageSize:{MessageSize} TransportType:{TransportType}");
DateTime startTime = DateTime.Now;
BenchmarkEntry benchmarkEntry = new BenchmarkEntry()
{
StartTime = startTime,
DeviceCount = opts.DeviceCount,
MaxMessages = opts.MaxMessages,
MessageSize = MessageSize,
DeviceBenchmarks = new List <DeviceBenchmarkEntry>(),
TransportType = opts.TransportType
};
Task[] tasks = new Task[opts.DeviceCount];
for (int deviceNumber = 1; deviceNumber <= opts.DeviceCount; deviceNumber++)
{
tasks[deviceNumber - 1] = StartClient(IoTHub, IoTDevicePrefix, deviceNumber, CommonKey, opts.MaxMessages, MessageSize, TransportType).ContinueWith(task =>
{
benchmarkEntry.DeviceBenchmarks.Add(task.Result);
});
}
Task.WaitAll(tasks);
DateTime endTime = DateTime.Now;
double messagesPerSecond = opts.DeviceCount * opts.MaxMessages / (endTime - startTime).TotalSeconds;
benchmarkEntry.EndTime = endTime;
benchmarkEntry.MessagePerSecond = messagesPerSecond;
WriteResultsToFile(benchmarkEntry, opts.BenchmarkFileNamePath).Wait();
Console.WriteLine("All Messages are sent");
Console.WriteLine($"Total Clients: {opts.DeviceCount}");
Console.WriteLine($"Message Size: {opts.MessageSize}");
Console.WriteLine($"Total Messages Sent: {opts.DeviceCount * opts.MaxMessages}");
Console.WriteLine($"Total Execution Time: {(endTime - startTime).TotalSeconds} seconds");
Console.WriteLine($"Messages Per Second: {messagesPerSecond}");
Thread.Sleep(7000); // Wait before starting to delete devices
DeleteDevices(opts.DeviceCount, opts.IotHubConnectionString).Wait();
});
}
public Edge()
{
this.Transport = Microsoft.Azure.Devices.Client.TransportType.Mqtt;
}
static async Task CallDirectMethodFromCloud(
string serviceClientConnectionString,
string deviceId,
string moduleId,
TransportType transportType,
TimeSpan delay,
CancellationTokenSource cts)
{
Logger.LogInformation("CallDirectMethodFromCloud started.");
ModuleClient moduleClient = null;
ServiceClient serviceClient = null;
try
{
Guid batchId = Guid.NewGuid();
int count = 1;
IotHubConnectionStringBuilder iotHubConnectionStringBuilder = IotHubConnectionStringBuilder.Create(serviceClientConnectionString);
Logger.LogInformation($"Prepare to call Direct Method from cloud ({iotHubConnectionStringBuilder.IotHubName}) on device [{deviceId}] module [{moduleId}]");
serviceClient = ServiceClient.CreateFromConnectionString(serviceClientConnectionString, Microsoft.Azure.Devices.TransportType.Amqp);
var cloudToDeviceMethod = new CloudToDeviceMethod("HelloWorldMethod").SetPayloadJson("{ \"Message\": \"Hello\" }");
moduleClient = await ModuleUtil.CreateModuleClientAsync(
transportType,
ModuleUtil.DefaultTimeoutErrorDetectionStrategy,
ModuleUtil.DefaultTransientRetryStrategy,
Logger);
while (!cts.Token.IsCancellationRequested)
{
Logger.LogInformation($"Calling Direct Method from cloud ({iotHubConnectionStringBuilder.IotHubName}) on device [{deviceId}] module [{moduleId}] of count {count}.");
try
{
CloudToDeviceMethodResult result = await serviceClient.InvokeDeviceMethodAsync(deviceId, moduleId, cloudToDeviceMethod, CancellationToken.None);
if (result.Status == (int)HttpStatusCode.OK)
{
var eventMessage = new Message(Encoding.UTF8.GetBytes($"Direct Method [{transportType}] Call succeeded."));
eventMessage.Properties.Add("sequenceNumber", count.ToString());
eventMessage.Properties.Add("batchId", batchId.ToString());
Logger.LogInformation($"Calling Direct Method from cloud with count {count} succeeded.");
await moduleClient.SendEventAsync(RouteOutputName, eventMessage);
}
else
{
Logger.LogError($"Calling Direct Method from cloud with count {count} failed with status code {result.Status}.");
}
count++;
}
catch (Exception e)
{
Logger.LogError($"Exception caught with count {count}: {e}");
}
await Task.Delay(delay, cts.Token);
}
}
catch (Exception e)
{
Logger.LogError($"Exception caught: {e}");
throw;
}
finally
{
Logger.LogInformation("Close connection for service client and module client");
if (serviceClient != null)
{
await serviceClient.CloseAsync();
}
if (moduleClient != null)
{
await moduleClient.CloseAsync();
}
}
Logger.LogInformation("CallDirectMethodFromCloud finished.");
}
public DeviceClient CreateDeviceClient(Device device, TransportType transportType)
{
return(DeviceClient.Create(configuration[ConfigurationKeys.IotHubUri], new DeviceAuthenticationWithRegistrySymmetricKey(device.Id, device.Authentication.SymmetricKey.PrimaryKey), transportType));
}
