private void MqttClient_ApplicationMessageReceived(MqttApplicationMessageReceivedEventArgs e)
{
LoggingFields messageHandlerLoggingFields = new LoggingFields();
#if DEBUG
Debug.WriteLine($"{DateTime.UtcNow:HH:mm:ss}-MqttClient_ApplicationMessageReceived ClientId:{e.ClientId} Topic:{e.ApplicationMessage.Topic} Payload:{e.ApplicationMessage.ConvertPayloadToString()}");
#endif
messageHandlerLoggingFields.AddString("ClientId", e.ClientId);
messageHandlerLoggingFields.AddString("Topic", e.ApplicationMessage.Topic);
messageHandlerLoggingFields.AddString("Payload", e.ApplicationMessage.ConvertPayloadToString());
if (messageHandler != null)
{
try
{
messageHandler.MqttApplicationMessageReceived(e);
}
catch (Exception ex)
{
messageHandlerLoggingFields.AddString("Exception", ex.ToString());
this.logging.LogEvent("MqttClient_ApplicationMessageReceived MessageHandler failed", messageHandlerLoggingFields, LoggingLevel.Error);
return;
}
}
this.logging.LogEvent("MqttClient_ApplicationMessageReceived", messageHandlerLoggingFields, LoggingLevel.Information);
}
private void WriteLog(string text,
LoggingLevel loggingLevel = LoggingLevel.Verbose,
[CallerMemberName] string memberName = "",
[CallerFilePath] string sourceFilePath = "",
[CallerLineNumber] int sourceLineNumber = 0)
{
Debug.WriteLine($"[Log::{Enum.GetName(typeof(LoggingLevel), loggingLevel)}][{memberName}] {text}");
if (_session == null || _channel == null)
{
Debug.WriteLine("Error: Logger is not initialized");
return;
}
try
{
string message =
"Message: " + text + Environment.NewLine + Environment.NewLine +
"Member name: " + memberName + Environment.NewLine +
"Source file path: " + sourceFilePath + Environment.NewLine +
"Source line number: " + sourceLineNumber + Environment.NewLine;
var fields = new LoggingFields();
fields.AddString("MemberName", memberName);
fields.AddString("SourceFilePath", sourceFilePath);
fields.AddInt32("SourceLineNumber", sourceLineNumber);
fields.AddString("Message", text);
_channel.LogEvent("LogEvent", fields, loggingLevel);
}
catch (Exception ex)
{
Debug.WriteLine("[Log] " + ex);
}
}
public void LogEvent(LoggingLevel l, string name, LoggingFields f = null)
{
Task.Run(() =>
{
channel.LogEvent(name, f, l);
});
}
public void Run(IBackgroundTaskInstance taskInstance)
{
LoggingFields startupInformation = new LoggingFields();
this.logging.LogEvent("Application starting");
try
{
this.mediaCapture = new MediaCapture();
this.mediaCapture.InitializeAsync().AsTask().Wait();
Debug.WriteLine("Camera configuration success");
GpioController gpioController = GpioController.GetDefault();
this.interruptGpioPin = gpioController.OpenPin(InterruptPinNumber);
this.interruptGpioPin.SetDriveMode(GpioPinDriveMode.InputPullUp);
this.interruptGpioPin.ValueChanged += this.InterruptGpioPin_ValueChanged;
Debug.WriteLine("Digital Input Interrupt configuration success");
}
catch (Exception ex)
{
this.logging.LogMessage("Camera or digital input configuration failed " + ex.Message, LoggingLevel.Error);
return;
}
startupInformation.AddString("PrimaryUse", this.mediaCapture.VideoDeviceController.PrimaryUse.ToString());
startupInformation.AddInt32("Interrupt pin", InterruptPinNumber);
this.logging.LogEvent("Application started", startupInformation);
// enable task to continue running in background
this.backgroundTaskDeferral = taskInstance.GetDeferral();
}
private async void InterruptGpioPin_ValueChanged(GpioPin sender, GpioPinValueChangedEventArgs args)
{
DateTime currentTime = DateTime.UtcNow;
Debug.WriteLine($"{DateTime.UtcNow.ToLongTimeString()} Digital Input Interrupt {sender.PinNumber} triggered {args.Edge}");
if (args.Edge == this.interruptTriggerOn)
{
return;
}
// Check that enough time has passed for picture to be taken
if ((currentTime - this.imageLastCapturedAtUtc) < this.debounceTimeout)
{
return;
}
this.imageLastCapturedAtUtc = currentTime;
// Just incase - stop code being called while photo already in progress
if (this.cameraBusy)
{
return;
}
this.cameraBusy = true;
try
{
string localFilenameLatest = string.Format(this.localStorageimageFilenameLatestFormat, Environment.MachineName.ToLower(), currentTime);
string localFilenameHistory = string.Format(this.localStorageImageFilenameHistoryFormat, Environment.MachineName.ToLower(), currentTime);
StorageFile photoFile = await KnownFolders.PicturesLibrary.CreateFileAsync(localFilenameLatest, CreationCollisionOption.ReplaceExisting);
ImageEncodingProperties imageProperties = ImageEncodingProperties.CreateJpeg();
await this.mediaCapture.CapturePhotoToStorageFileAsync(imageProperties, photoFile);
LoggingFields imageInformation = new LoggingFields();
imageInformation.AddDateTime("TakenAtUTC", currentTime);
imageInformation.AddString("LocalFilename", photoFile.Path);
imageInformation.AddString("LocalFilenameHistory", localFilenameHistory);
this.logging.LogEvent("Saving image(s) to local storage", imageInformation);
// copy the historic image to storage
if (!string.IsNullOrWhiteSpace(localFilenameHistory))
{
await photoFile.CopyAsync(KnownFolders.PicturesLibrary, localFilenameHistory);
this.logging.LogEvent("Image history saved to local storage");
}
}
catch (Exception ex)
{
this.logging.LogMessage("Camera photo save or upload failed " + ex.Message, LoggingLevel.Error);
}
finally
{
this.cameraBusy = false;
}
}
/// <summary>
/// Track an exception.
/// </summary>
/// <param name="ex">Instance of <see cref="Exception"/></param>
public static async void TrackExceptionAsync(Exception ex)
{
if (!OptinTelemetry || ex == null)
{
return;
}
if (!_isInitialized)
{
await InitializeInternalAsync();
}
TelemetryClient.TrackException(ex);
try
{
var lgFields = new LoggingFields();
lgFields.AddString("Message", ex.Message ?? string.Empty, LoggingFieldFormat.String);
lgFields.AddString("StackTrace", ex.StackTrace ?? string.Empty, LoggingFieldFormat.String);
lgFields.AddString("Detailed", ex.ToString(), LoggingFieldFormat.String);
LogEventWithParams(ExceptionEvent, lgFields, LoggingLevel.Error);
}
catch
{
// Ignore
}
}
public void Run(IBackgroundTaskInstance taskInstance)
{
LoggingFields startupInformation = new LoggingFields();
this.logging.LogEvent("Application starting");
try
{
this.mediaCapture = new MediaCapture();
this.mediaCapture.InitializeAsync().AsTask().Wait();
this.imageUpdatetimer = new Timer(this.ImageUpdateTimerCallback, null, this.imageUpdateDueDefault, this.imageUpdatePeriodDefault);
}
catch (Exception ex)
{
this.logging.LogMessage("Camera configuration failed " + ex.Message, LoggingLevel.Error);
return;
}
startupInformation.AddString("PrimaryUse", this.mediaCapture.VideoDeviceController.PrimaryUse.ToString());
startupInformation.AddTimeSpan("Due", this.imageUpdateDueDefault);
startupInformation.AddTimeSpan("Period", this.imageUpdatePeriodDefault);
this.logging.LogEvent("Application started", startupInformation);
// enable task to continue running in background
this.backgroundTaskDeferral = taskInstance.GetDeferral();
}
private void Rfm9XDevice_OnReceive(object sender, Rfm9XDevice.OnDataReceivedEventArgs e)
{
LoggingFields messageHandlerLoggingFields = new LoggingFields();
#if DEBUG
Debug.WriteLine($"{DateTime.UtcNow:HH:mm:ss}-OnReceive From:{BitConverter.ToString(e.Address)} PacketSnr:{e.PacketSnr:0.0} Packet RSSI:{e.PacketRssi}dBm RSSI:{e.Rssi}dBm Length:{e.Data.Length}");
#endif
messageHandlerLoggingFields.AddString("PacketSNR", e.PacketSnr.ToString("F1"));
messageHandlerLoggingFields.AddInt32("PacketRSSI", e.PacketRssi);
messageHandlerLoggingFields.AddInt32("RSSI", e.Rssi);
string addressBcdText = BitConverter.ToString(e.Address);
messageHandlerLoggingFields.AddInt32("DeviceAddressLength", e.Address.Length);
messageHandlerLoggingFields.AddString("DeviceAddressBCD", addressBcdText);
if (messageHandler != null)
{
try
{
messageHandler.Rfm9XOnReceive(e);
}
catch (Exception ex)
{
messageHandlerLoggingFields.AddString("MessageHandler Exception", ex.ToString());
this.logging.LogEvent("Rfm9XDevice_OnReceive", messageHandlerLoggingFields, LoggingLevel.Error);
return;
}
}
this.logging.LogEvent("Rfm9XDevice_OnReceive", messageHandlerLoggingFields, LoggingLevel.Information);
}
public void Verbose(string message)
{
var fields = new LoggingFields();
fields.AddString("Message", message);
this.channel.LogEvent(TraceEventName, fields, LoggingLevel.Verbose);
}
public static LoggingChannel log = new LoggingChannel("GPSCam", null); // Guid généré automatiquement est : {
private void App_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
LoggingFields champs = new LoggingFields();
champs.AddString("MESSAGE", e.Exception.ToString());
log.LogEvent("EXCEPTION", champs, LoggingLevel.Error);
e.Handled = true;
}
public void LogDataLightSensor(LightSensorReading reading)
{
LoggingFields loggingFields = new LoggingFields();
loggingFields.AddString("Timestamp", reading.Timestamp.ToString());
loggingFields.AddDouble("IlluminanceInLux", reading.IlluminanceInLux);
rootPage.loggingChannelView.LogEvent("LightSensorData", loggingFields);
}
public static void Trace(string message)
{
LoggingFields fields = new LoggingFields();
fields.AddString("Message", message);
Logger.LogEvent("DebugTrace", fields, EventVerbosity.Verbose);
Debug.WriteLine(message);
}
void IMessageHandler.Initialise(LoggingChannel logging, IMqttClient mqttClient, Rfm9XDevice rfm9XDevice, string platformSpecificConfiguration)
{
LoggingFields processInitialiseLoggingFields = new LoggingFields();
this.Logging = logging;
this.MqttClient = mqttClient;
this.Rfm9XDevice = rfm9XDevice;
this.PlatformSpecificConfiguration = platformSpecificConfiguration;
}
/// <summary>
/// Given an existing <see cref="LoggingFields"/> reference, adds additional fields for an exception.
/// </summary>
/// <param name="exception"></param>
/// <param name="fields"></param>
/// <returns></returns>
public static LoggingFields AugmentLoggingFields(this Exception exception, LoggingFields fields)
{
fields.AddString("ExceptionType", exception?.GetType()?.ToString() ?? "[None]");
fields.AddString("ExceptionMessage", exception?.Message ?? "[None]");
fields.AddString("ExceptionStack", exception?.StackTrace ?? "[None]");
fields.AddString("InnerException", exception?.InnerException?.ToString() ?? "[None]");
return(fields);
}
private async void ImageUpdateTimerCallback(object state)
{
DateTime currentTime = DateTime.UtcNow;
Debug.WriteLine($"{DateTime.UtcNow.ToLongTimeString()} Timer triggered");
// Just incase - stop code being called while photo already in progress
if (cameraBusy)
{
return;
}
cameraBusy = true;
try
{
string localFilename = string.Format(localImageFilenameLatestFormat, currentTime);
string folderNameHistory = string.Format(localFolderNameHistoryFormat, currentTime);
string filenameHistory = string.Format(localImageFilenameHistoryFormat, currentTime);
StorageFile photoFile = await KnownFolders.PicturesLibrary.CreateFileAsync(localFilename, CreationCollisionOption.ReplaceExisting);
ImageEncodingProperties imageProperties = ImageEncodingProperties.CreateJpeg();
await mediaCapture.CapturePhotoToStorageFileAsync(imageProperties, photoFile);
LoggingFields imageInformation = new LoggingFields();
imageInformation.AddDateTime("TakenAtUTC", currentTime);
imageInformation.AddString("LocalFilename", photoFile.Path);
imageInformation.AddString("FolderNameHistory", folderNameHistory);
imageInformation.AddString("FilenameHistory", filenameHistory);
this.logging.LogEvent("Image saved to local storage", imageInformation);
// Upload the historic image to storage
if (!string.IsNullOrWhiteSpace(folderNameHistory) && !string.IsNullOrWhiteSpace(filenameHistory))
{
// Check to see if historic images folder exists and if it doesn't create it
IStorageFolder storageFolder = (IStorageFolder)await KnownFolders.PicturesLibrary.TryGetItemAsync(folderNameHistory);
if (storageFolder == null)
{
storageFolder = await KnownFolders.PicturesLibrary.CreateFolderAsync(folderNameHistory);
}
await photoFile.CopyAsync(storageFolder, filenameHistory, NameCollisionOption.ReplaceExisting);
this.logging.LogEvent("Image historic saved to local storage", imageInformation);
}
}
catch (Exception ex)
{
this.logging.LogMessage("Image capture or save failed " + ex.Message, LoggingLevel.Error);
}
finally
{
cameraBusy = false;
}
}
private async Task <MethodResponse> DeviceSendAsync(MethodRequest methodRequest, object userContext)
{
LoggingFields sendLoggingInfo = new LoggingFields();
this.logging.LogEvent("Send BCD initiated");
try
{
// Initially use a dynamic maybe use a decorated class in future
dynamic json = JValue.Parse(methodRequest.DataAsJson);
string deviceAddressBcd = json.DeviceAddress;
sendLoggingInfo.AddString("DeviceAddressBCD", deviceAddressBcd);
Debug.WriteLine($"DeviceSendAsync DeviceAddressBCD {deviceAddressBcd}");
byte[] deviceAddressBytes = deviceAddressBcd.Split('-').Select(x => byte.Parse(x, NumberStyles.HexNumber)).ToArray();
sendLoggingInfo.AddInt32("DeviceAddressBytes Length", deviceAddressBytes.Length);
Debug.WriteLine($"DeviceSendAsync DeviceAddressLength {deviceAddressBytes.Length}");
if ((deviceAddressBytes.Length < Rfm9XDevice.AddressLengthMinimum) || (deviceAddressBytes.Length > Rfm9XDevice.AddressLengthMaximum))
{
this.logging.LogEvent("DeviceSendAsync failed device address bytes length", sendLoggingInfo, LoggingLevel.Error);
return(new MethodResponse(414));
}
string messagedBcd = json.DevicePayload;
sendLoggingInfo.AddString("MessageBCD", messagedBcd);
byte[] messageBytes = messagedBcd.Split('-').Select(x => byte.Parse(x, NumberStyles.HexNumber)).ToArray(); // changed the '-' to ' '
sendLoggingInfo.AddInt32("MessageBytesLength", messageBytes.Length);
Debug.WriteLine($"DeviceSendAsync DeviceAddress:{deviceAddressBcd} Payload:{messagedBcd}");
if ((messageBytes.Length < Rfm9XDevice.MessageLengthMinimum) || (messageBytes.Length > Rfm9XDevice.MessageLengthMaximum))
{
this.logging.LogEvent("DeviceSendAsync failed payload Length", sendLoggingInfo, LoggingLevel.Error);
return(new MethodResponse(413));
}
if (sendMessageQueue.TryAdd(deviceAddressBytes, messageBytes))
{
this.logging.LogEvent("DeviceSendAsync failed message already queued", sendLoggingInfo, LoggingLevel.Error);
return(new MethodResponse(409));
}
this.logging.LogEvent("DeviceSendAsync success", sendLoggingInfo, LoggingLevel.Information);
}
catch (Exception ex)
{
sendLoggingInfo.AddString("Exception", ex.ToString());
this.logging.LogEvent("DeviceSendAsync failed exception", sendLoggingInfo, LoggingLevel.Error);
return(new MethodResponse(400));
}
return(new MethodResponse(200));
}
private void PopulateAppInfo(LoggingFields fields)
{
var appId = CoreApplication.Id;
var aumId = Package.Current.Id.FamilyName + "!" + appId;
var packageFullName = Package.Current.Id.FullName;
var psmKey = Package.Current.Id.FullName + "+" + appId;
fields.AddString("AumId", aumId);
fields.AddString("PackageFullName", packageFullName);
fields.AddString("PsmKey", psmKey);
}
private void SensorValueupload(object state)
{
try
{
// Air sensor readings
double temperatureCelsius = bme280Sensor.Temperature.DegreesCelsius;
double temperatureFahrenheit = bme280Sensor.Temperature.DegreesFahrenheit;
double humidity = bme280Sensor.Humidity;
double pressure = bme280Sensor.Pressure.Kilopascals;
double lightLevel = GroveBaseHatAnalogPorts.Read(AnalogPorts.AnalogPort.A0);
double soilMoisture1 = GroveBaseHatAnalogPorts.Read(AnalogPorts.AnalogPort.A2);
double soilMoisture2 = GroveBaseHatAnalogPorts.Read(AnalogPorts.AnalogPort.A4);
LoggingService.Log(string.Format("C {0:0.0}° F {1:0.0}° H {2:0}% P {3:0.000}kPa L {4:0}% Soil1 {5:0}% Soil2 {6:0}% ", temperatureCelsius, temperatureFahrenheit, humidity, pressure, lightLevel, soilMoisture1, soilMoisture2));
// Setup for the the logging of sensor values
var loggingData = new LoggingFields();
// Construct Azure IoT Central friendly payload
var telemetryDataPoint = new TelemetryDataPoint();
telemetryDataPoint.Celsius = temperatureCelsius;
loggingData.AddDouble(nameof(telemetryDataPoint.Celsius), temperatureCelsius);
telemetryDataPoint.Fahrenheit = temperatureFahrenheit;
loggingData.AddDouble(nameof(telemetryDataPoint.Fahrenheit), temperatureFahrenheit);
telemetryDataPoint.Humidity = humidity;
loggingData.AddDouble(nameof(telemetryDataPoint.Humidity), humidity);
telemetryDataPoint.Pressure = pressure;
loggingData.AddDouble(nameof(telemetryDataPoint.Pressure), pressure);
telemetryDataPoint.Light = lightLevel;
loggingData.AddDouble(nameof(telemetryDataPoint.Light), lightLevel);
telemetryDataPoint.SoilMoisture1 = soilMoisture1;
loggingData.AddDouble(nameof(telemetryDataPoint.SoilMoisture1), soilMoisture1);
telemetryDataPoint.SoilMoisture2 = soilMoisture2;
loggingData.AddDouble(nameof(telemetryDataPoint.SoilMoisture2), soilMoisture2);
// Log the sensor values to ETW logging
LoggingService.LogEvent("Sensor readings", loggingData, LoggingLevel.Verbose);
using (var message = new Message(Encoding.ASCII.GetBytes(JsonConvert.SerializeObject(telemetryDataPoint))))
{
LoggingService.Log("AzureIoTHubClient SendEventAsync starting");
azureIoTHubClient.SendEventAsync(message).Wait();
LoggingService.Log("AzureIoTHubClient SendEventAsync finished");
}
}
catch (Exception ex)
{
LoggingService.Error("Failed to send telemetry", ex);
}
}
/// <summary>
/// Handles application memory limit changes.
/// </summary>
/// <param name="e">Instance of <see cref="AppMemoryUsageLimitChangingEventArgs"/>.</param>
private void OnAppMemroyUsageLimitChanging(object sender, AppMemoryUsageLimitChangingEventArgs e)
{
if (MemoryManager.AppMemoryUsage >= e.NewLimit)
{
var fields = new LoggingFields();
fields.AddUInt64("CurrentUsage", MemoryManager.AppMemoryUsage);
fields.AddUInt64("NewLimit", e.NewLimit);
TelemetryHelper.LogEventWithParams("MemUsageChanging", fields);
ReduceMemoryUsage();
}
}
public static void Assert(bool condition, string message)
{
if (!condition)
{
LoggingFields fields = new LoggingFields();
fields.AddString("Message", message);
Logger.LogEvent("AssertionFailed", fields, EventVerbosity.Critical);
Debug.WriteLine("AssertionFailed: " + message);
Debugger.Break();
}
}
public void ResumeVisibleComplete()
{
if (!GetTraceLoggingProviderEnabled())
{
return;
}
LoggingFields fields = new LoggingFields();
PopulateAppInfo(fields);
LogAppLifecycleEvent("ModernAppResume_VisibleComplete", fields);
}
public void LaunchUIResponsive()
{
if (!GetTraceLoggingProviderEnabled())
{
return;
}
LoggingFields fields = new LoggingFields();
PopulateAppInfo(fields);
LogAppLifecycleEvent("ModernAppLaunch_UIResponsive", fields);
}
async Task PayloadText(DeviceClient azureIoTHubClient, Rfm9XDevice.OnDataReceivedEventArgs e)
{
JObject telemetryDataPoint = new JObject();
LoggingFields processLoggingFields = new LoggingFields();
processLoggingFields.AddString("PacketSNR", e.PacketSnr.ToString("F1"));
telemetryDataPoint.Add("PacketSNR", e.PacketSnr.ToString("F1"));
processLoggingFields.AddInt32("PacketRSSI", e.PacketRssi);
telemetryDataPoint.Add("PacketRSSI", e.PacketRssi);
processLoggingFields.AddInt32("RSSI", e.Rssi);
telemetryDataPoint.Add("RSSI", e.Rssi);
string addressBcdText = BitConverter.ToString(e.Address);
processLoggingFields.AddInt32("DeviceAddressLength", e.Address.Length);
processLoggingFields.AddString("DeviceAddressBCD", addressBcdText);
telemetryDataPoint.Add("DeviceAddressBCD", addressBcdText);
string messageBcdText = BitConverter.ToString(e.Data);
processLoggingFields.AddInt32("MessageLength", e.Data.Length);
processLoggingFields.AddString("MessageBCD", messageBcdText);
try
{
string messageText = UTF8Encoding.UTF8.GetString(e.Data);
processLoggingFields.AddString("MessageText", messageText);
telemetryDataPoint.Add("Payload", messageText);
}
catch (Exception)
{
this.logging.LogEvent("PayloadProcess failure converting payload to text", processLoggingFields, LoggingLevel.Warning);
return;
}
try
{
using (Message message = new Message(Encoding.ASCII.GetBytes(JsonConvert.SerializeObject(telemetryDataPoint))))
{
Debug.WriteLine(" {0:HH:mm:ss} AzureIoTHubClient SendEventAsync start", DateTime.UtcNow);
await this.azureIoTHubClient.SendEventAsync(message);
Debug.WriteLine(" {0:HH:mm:ss} AzureIoTHubClient SendEventAsync finish", DateTime.UtcNow);
}
this.logging.LogEvent("SendEventAsync Text payload", processLoggingFields, LoggingLevel.Information);
}
catch (Exception ex)
{
processLoggingFields.AddString("Exception", ex.ToString());
this.logging.LogEvent("SendEventAsync Text payload", processLoggingFields, LoggingLevel.Error);
}
}
public bool ToFile(LoggingFields logFields, LoggingType loggingType)
{
bool retVal = false;
string DtTm = DateTime.Now.ToString(LoggingConstants.LogDateTimeFormat);
string fileName = string.Format(LoggingConstants.TextFileName, logFields.AppName, DateTime.Now.ToString(LoggingConstants.LogFileDateTimeFormat));
string filePath = @LogFileUri + fileName;
try
{
using (StreamWriter file = File.AppendText(filePath))
{
switch (loggingType)
{
case LoggingType.Information:
case LoggingType.Warning:
file.WriteLine(string.Format("{0}\t{1}\t{2}\t{3}\t{4}", DtTm, LoggingConstants.SourceLogName, loggingType, logFields.AppName, logFields.LogMessage));
retVal = true;
break;
case LoggingType.Exception:
file.WriteLine(string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}", DtTm, LoggingConstants.SourceLogName, loggingType, logFields.AppName, logFields.ExceptionMessage, logFields.ExceptionStackTrace));
retVal = true;
break;
case LoggingType.ExceptionWithMessage:
file.WriteLine(string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}", DtTm, LoggingConstants.SourceLogName, loggingType, logFields.AppName, logFields.ExceptionMessage, logFields.ExceptionStackTrace, logFields.LogMessage));
retVal = true;
break;
case LoggingType.Performance:
file.WriteLine(string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}", DtTm, LoggingConstants.SourceLogName, loggingType, logFields.AppName, logFields.PerformanceStartTime, logFields.PerformanceEndTime, logFields.LogMessage));
retVal = true;
break;
default:
break;
}
}
}
catch (DirectoryNotFoundException)
{
retVal = false;
//throw new ArgumentException(LoggingConstants.Log_DirectoryNotFoundException);
}
catch
{
retVal = false;
}
return(retVal);
}
public void Log(Exception e)
{
Task.Run(() =>
{
var a = new LoggingFields();
a.AddString("Type", e.GetType().Name);
a.AddString("Message", e.Message);
PushException(ref a, e);
channel.LogEvent("Exception_Occured", a, LoggingLevel.Error);
});
}
public bool LogException(string appName, Exception ex)
{
Guard.Against.LogAppNameEmpty(appName);
logFields = new LoggingFields
{
AppName = appName,
ExceptionMessage = ex.Message,
ExceptionStackTrace = ex.StackTrace
};
return(loggingHelper.ToFile(logFields, LoggingType.Exception));
}
public bool LogInformation(string appName, string logMessage)
{
Guard.Against.LogAppNameEmpty(appName);
Guard.Against.LogMessageEmpty(logMessage);
logFields = new LoggingFields
{
AppName = appName,
LogMessage = logMessage
};
return(loggingHelper.ToFile(logFields, LoggingType.Information));
}
private bool disposedValue = false; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
loggingHelper = null;
logFields = null;
}
disposedValue = true;
}
}
public void ResizeVisibleComplete(int viewId)
{
if (!GetTraceLoggingProviderEnabled())
{
return;
}
LoggingFields fields = new LoggingFields();
PopulateAppInfo(fields);
fields.AddInt32("ViewId", viewId);
LogAppLifecycleEvent("ModernAppResize_VisibleComplete", fields);
}
void IMessageHandler.MqttApplicationMessageReceived(MqttApplicationMessageReceivedEventArgs e)
{
LoggingFields processReceiveLoggingFields = new LoggingFields();
processReceiveLoggingFields.AddString("ClientId", e.ClientId);
#if DEBUG
processReceiveLoggingFields.AddString("Payload", e.ApplicationMessage.ConvertPayloadToString());
#endif
processReceiveLoggingFields.AddString("QualityOfServiceLevel", e.ApplicationMessage.QualityOfServiceLevel.ToString());
processReceiveLoggingFields.AddBoolean("Retain", e.ApplicationMessage.Retain);
processReceiveLoggingFields.AddString("Topic", e.ApplicationMessage.Topic);
this.Logging.LogEvent("MqttApplicationMessageReceived topic not processed", processReceiveLoggingFields, LoggingLevel.Error);
}
/// <summary>
/// This method demonstrates the LoggingChannel and LoggingActivity APIs.
/// </summary>
/// <param name="channel">
/// The channel to use for the demonstration. This channel may have been
/// constructed using a Windows 8.1 constructor or a Windows 10 constructor.
/// The same APIs are supported in both cases, but the ETL events will be
/// formatted a bit differently depending on how the channel was constructed.
/// </param>
private void DemonstrateLogging(LoggingChannel channel)
{
// Whenever any ETW session changes the way it is listening to this
// channel, the LoggingEnable event is fired. For example, this might
// be called when a session begins listening, changes the level at
// which it is listening, or stops listening.
channel.LoggingEnabled += this.OnLoggingEnabled;
// Log simple string events
channel.LogMessage("Simple message"); // default level is Verbose
channel.LogMessage("Simple error", LoggingLevel.Error);
// Log simple string + integer events.
channel.LogValuePair("Simple message", 123); // default level is Verbose
channel.LogValuePair("Simple error", 456, LoggingLevel.Error);
// The channel.Name property returns the name that was used when the
// channel was constructed. When running in Windows 10 mode, the name
// is already set as the provider name, so no LoggingChannelName is
// automatically added to the event.
channel.LogMessage(channel.Name);
// The channel.Id property is new to Windows 10.
channel.LogMessage(channel.Id.ToString());
// If you want to avoid the overhead of collecting data when nobody is
// listening to your channel, check the Enabled property before logging.
if (channel.Enabled)
{
channel.LogMessage(this.CollectExpensiveData());
}
// The IsEnabled() method is exactly the same as the Enabled property,
// except that it is a new Windows 10 API.
if (channel.IsEnabled())
{
channel.LogMessage(this.CollectExpensiveData());
}
// If you want to only collect data if somebody is listening at a specific
// level, you need to check both Enabled and Level. Note that the value of
// the Level is unspecified when Enabled is false.
if (channel.Enabled && channel.Level <= LoggingLevel.Warning)
{
channel.LogMessage(this.CollectExpensiveData(), LoggingLevel.Warning);
}
// The IsEnabled(LoggingLevel) method is a bit nicer than checking both
// Enabled and Level, but it is only available on Windows 10 or later.
if (channel.IsEnabled(LoggingLevel.Warning))
{
channel.LogMessage(this.CollectExpensiveData(), LoggingLevel.Warning);
}
// You can also use IsEnabled to check for keywords.
if (channel.IsEnabled(LoggingLevel.Information, 0x10))
{
channel.LogMessage(this.CollectExpensiveData(), LoggingLevel.Information);
}
// Use LoggingFields with the LogEvent method to write complex events.
var fields = new LoggingFields();
fields.AddDouble("pi", 3.14159);
channel.LogEvent(
"ComplexEvent",
fields,
LoggingLevel.Verbose,
new LoggingOptions(0x10)); // Keywords = 0x10
// You can add any number of name-value pairs to a fields object, though
// you may encounter ETW limitations if you add too many. For example,
// ETW is limited to a maximum event size of 64KB, and the current
// TraceLogging decoder can handle no more than 128 fields.
// Performance optimization: You can reuse a LoggingFields object to
// avoid unnecessary allocations. Don't forget to call Clear()
// between uses, and don't try to share a LoggingFields object between
// threads.
fields.Clear();
fields.AddDateTime("Date", DateTimeOffset.Now);
channel.LogEvent("Now", fields);
fields.Clear();
// You can add a formatting hint to affect the way a value is decoded.
// Not all combinations are useful, and the hint may be ignored.
// For example, you can encode an MBCS string by writing a byte array
// with a String hint.
fields.AddUInt8Array(
"AnsiString",
new byte[] { 65, 66, 67, 49, 50, 51 }, // "ABC123"
LoggingFieldFormat.String);
// You can add "tag" bits to a field. These are user-defined bits that
// can be used to communicate with an event processing tool. For example,
// you might define a tag bit to indicate that a field contains private
// data that should not be displayed on-screen.
fields.AddString("Password", "12345", LoggingFieldFormat.Default, 0x10);
// You can add a "structure" to an event. A structure is a name for a
// group of fields. Structures can nest. Call BeginStruct to add a level
// of nesting, and call EndStruct after the last field of the structure.
fields.BeginStruct("Nested");
fields.AddInt16("Nested-1", 1);
fields.AddInt16("Nested-2", 2);
fields.BeginStruct("Nested-Nested");
fields.AddInt16("Nested-Nested-3", 3);
fields.EndStruct();
fields.AddInt16("Nested-4", 4);
fields.EndStruct();
// Advanced scenarios: you can use a LoggingOptions object to control
// detailed event settings such as keywords, opcodes, and activity Ids.
// These have their normal ETW semantics. You can also set event tags,
// which are bit values that can be used to communicate with the event
// processor.
channel.LogEvent(
"VeryComplexEvent",
fields,
LoggingLevel.Information,
new LoggingOptions { Keywords = 0x123, Tags = 0x10 });
// Windows 10 introduces the ILoggingTarget interface. LoggingChannel
// implements this interface. This interface allows components to accept
// a logger as an parameter.
this.DoSomething(channel);
/*
If a LoggingActivity is created using a LoggingActivity constructor,
it will use Windows 8.1 semantics:
- If an activity is destroyed (garbage-collected) without being closed
and the associated LoggingChannel is still open, the activity will
write a default Stop event.
- The default Stop event (written by the destructor or by the Close()
method) is encoded as a "simple" event.
The 8.1 semantics are deprecated because the automatic generation of
a Stop event at garbage-collection can be misleading. The Stop event
is intended to mark the a precise point at which an activity is
completed, while the garbage-collection of an abandoned activity is
inherently imprecise and unpredictable.
If a LoggingActivity is created using a StartActivity method, it will
use Windows 10 semantics:
- If an activity is destroyed (garbage-collected) without being closed,
there will be no Stop event for the activity.
- The default Stop event (written by the Close() method) is encoded as
a TraceLogging event with name "ActivityClosed".
*/
// This activity is created with Windows 8.1 semantics.
using (var a1 = new LoggingActivity("Activity1", channel))
{
// The activity Start event is written by the LoggingActivity constructor.
// You would do your activity's work here.
// The activity Stop event is written when the activity is closed (disposed).
// The Windows 10 LoggingActivity adds new methods for writing events
// that are marked as associated with the activity.
a1.LogEvent("Activity event");
// LoggingActivity also implements the ILoggingTarget interface, so you can
// use either a channel or an activity as a logging target.
this.DoSomething(a1);
// The Windows 10 LoggingActivity adds new methods for creating nested activities.
// Note that nested activities are always created with Windows 10 semantics,
// even when nested under an activity that is using Windows 8.1 semantics.
using (var a2 = a1.StartActivity("Activity2"))
{
// Nested task occurs here.
// The Windows 10 LoggingActivity allows you to customize the Stop event.
a2.StopActivity("Activity 2 stop");
}
// Because a1 is using Windows 8.1 semantics, if we did not call Dispose(),
// it would attempt to write a Stop event when it is garbage collected.
// Writing Stop events during garbage collection is not useful, so be sure
// to properly stop, close, or dispose activities.
}
// The Windows 10 StartActivity method creates a new activity, optionally with
// specified fields and characteristics.
// This activity is created with Windows 10 semantics.
using (var a3 = channel.StartActivity("Activity3"))
{
// Because a3 is using Windows 10 semantics, if we did not call Dispose(),
// there would be no Stop event (not even when the activity is garbage
// collected). To get a Stop event, be sure to stop, close, or dispose the
// activity.
}
}