public void Failed(Exception e)
{
if (_activity == null)
{
return;
}
_source?.Write(_activity.OperationName + ".Exception", e);
}
private static Guid LogHttpRequestCore(DiagnosticListener diagnosticListener, HttpRequestMessage request)
{
Guid loggingRequestId = Guid.NewGuid();
long timestamp = Stopwatch.GetTimestamp();
diagnosticListener.Write(
HttpHandlerLoggingStrings.RequestWriteName,
new
{
Request = request,
LoggingRequestId = loggingRequestId,
Timestamp = timestamp
}
);
return loggingRequestId;
}
public void InitializeDoesNotIncludeRouteGroupKeyInParametersList()
{
var actionContext = new ActionContext();
actionContext.RouteData = new RouteData();
actionContext.RouteData.Values.Add("controller", "account");
actionContext.RouteData.Values.Add("action", "login");
actionContext.RouteData.Values.Add(TreeRouter.RouteGroupKey, "RouteGroupKey");
var contextAccessor = HttpContextAccessorHelper.CreateHttpContextAccessor(new RequestTelemetry(), actionContext);
var telemetryListener = new DiagnosticListener(TestListenerName);
var initializer = new OperationNameTelemetryInitializer(contextAccessor, telemetryListener);
telemetryListener.Write(OperationNameTelemetryInitializer.BeforeActionNotificationName,
new { httpContext = contextAccessor.HttpContext, routeData = actionContext.RouteData });
var telemetry = new EventTelemetry();
initializer.Initialize(telemetry);
Assert.Equal("GET account/login", telemetry.Context.Operation.Name);
}
private static void LogHttpResponseCore(DiagnosticListener diagnosticListener, HttpResponseMessage response, Guid loggingRequestId)
{
// An empty loggingRequestId signifies that the request was not logged, so do
// not attempt to log response.
if (loggingRequestId != Guid.Empty)
{
long timestamp = Stopwatch.GetTimestamp();
diagnosticListener.Write(
HttpHandlerLoggingStrings.ResponseWriteName,
new
{
Response = response,
LoggingRequestId = loggingRequestId,
TimeStamp = timestamp
}
);
}
}
public void LinuxNewLineConventions()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("LinuxNewLineConventionsSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types You can have whitespace
// before and after each spec. Use \n rather than \r\n
eventSourceListener.Enable(
" LinuxNewLineConventionsSource/TestEvent1:-cls_Point_X=cls.Point.X\n" +
" LinuxNewLineConventionsSource/TestEvent2:-cls_Url=cls.Url\n"
);
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass() { Url = "MyUrl", Point = new MyPoint() { X = 3, Y = 5 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("LinuxNewLineConventionsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("3", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event that matches the second pattern.
if (diagnosticSourceListener.IsEnabled("TestEvent2"))
diagnosticSourceListener.Write("TestEvent2", new { prop2Str = "hello", prop2Int = 8, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("LinuxNewLineConventionsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("MyUrl", eventSourceListener.LastEvent.Arguments["cls_Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Emit an event that does not match either pattern. (thus will be filtered out)
if (diagnosticSourceListener.IsEnabled("TestEvent3"))
diagnosticSourceListener.Write("TestEvent3", new { propStr = "prop3", });
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
}
// Make sure that there are no Diagnostic Listeners left over.
DiagnosticListener.AllListeners.Subscribe(DiagnosticSourceTest.MakeObserver(delegate (DiagnosticListener listen)
{
Assert.True(!listen.Name.StartsWith("BuildTestSource"));
}));
}
public void MultiSubscriber()
{
using (DiagnosticListener listener = new DiagnosticListener("Testing"))
{
DiagnosticSource source = listener;
var subscriber1Result = new List <KeyValuePair <string, object> >();
Predicate <string> subscriber1Predicate = name => (name == "DataForSubscriber1");
var subscriber1Oberserver = new ObserverToList <TelemData>(subscriber1Result);
var subscriber2Result = new List <KeyValuePair <string, object> >();
Predicate <string> subscriber2Predicate = name => (name == "DataForSubscriber2");
var subscriber2Oberserver = new ObserverToList <TelemData>(subscriber2Result);
// Get two subscribers going.
using (var subscription1 = listener.Subscribe(subscriber1Oberserver, subscriber1Predicate))
{
using (var subscription2 = listener.Subscribe(subscriber2Oberserver, subscriber2Predicate))
{
// Things that neither subscribe to get filtered out.
if (listener.IsEnabled("DataToFilterOut"))
{
listener.Write("DataToFilterOut", -1);
}
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
// If a Source does not use the IsEnabled, then every subscriber gets it.
subscriber1Result.Clear();
subscriber2Result.Clear();
listener.Write("UnfilteredData", 3);
Assert.Equal(1, subscriber1Result.Count);
Assert.Equal("UnfilteredData", subscriber1Result[0].Key);
Assert.Equal(3, (int)subscriber1Result[0].Value);
Assert.Equal(1, subscriber2Result.Count);
Assert.Equal("UnfilteredData", subscriber2Result[0].Key);
Assert.Equal(3, (int)subscriber2Result[0].Value);
/****************************************************/
// Filters not filter out everything, they are just a performance optimization.
// Here you actually get more than you want even though you use a filter
subscriber1Result.Clear();
subscriber2Result.Clear();
if (listener.IsEnabled("DataForSubscriber1"))
{
listener.Write("DataForSubscriber1", 1);
}
Assert.Equal(1, subscriber1Result.Count);
Assert.Equal("DataForSubscriber1", subscriber1Result[0].Key);
Assert.Equal(1, (int)subscriber1Result[0].Value);
// Subscriber 2 happens to get it
Assert.Equal(1, subscriber2Result.Count);
Assert.Equal("DataForSubscriber1", subscriber2Result[0].Key);
Assert.Equal(1, (int)subscriber2Result[0].Value);
/****************************************************/
subscriber1Result.Clear();
subscriber2Result.Clear();
if (listener.IsEnabled("DataForSubscriber2"))
{
listener.Write("DataForSubscriber2", 2);
}
// Subscriber 1 happens to get it
Assert.Equal(1, subscriber1Result.Count);
Assert.Equal("DataForSubscriber2", subscriber1Result[0].Key);
Assert.Equal(2, (int)subscriber1Result[0].Value);
Assert.Equal(1, subscriber2Result.Count);
Assert.Equal("DataForSubscriber2", subscriber2Result[0].Key);
Assert.Equal(2, (int)subscriber2Result[0].Value);
} // subscriber2 drops out
/*********************************************************************/
/* Only Subscriber 1 is left */
/*********************************************************************/
// Things that neither subscribe to get filtered out.
subscriber1Result.Clear();
subscriber2Result.Clear();
if (listener.IsEnabled("DataToFilterOut"))
{
listener.Write("DataToFilterOut", -1);
}
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
// If a Source does not use the IsEnabled, then every subscriber gets it.
subscriber1Result.Clear();
listener.Write("UnfilteredData", 3);
Assert.Equal(1, subscriber1Result.Count);
Assert.Equal("UnfilteredData", subscriber1Result[0].Key);
Assert.Equal(3, (int)subscriber1Result[0].Value);
// Subscriber 2 has dropped out.
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
// Filters not filter out everything, they are just a performance optimization.
// Here you actually get more than you want even though you use a filter
subscriber1Result.Clear();
if (listener.IsEnabled("DataForSubscriber1"))
{
listener.Write("DataForSubscriber1", 1);
}
Assert.Equal(1, subscriber1Result.Count);
Assert.Equal("DataForSubscriber1", subscriber1Result[0].Key);
Assert.Equal(1, (int)subscriber1Result[0].Value);
// Subscriber 2 has dropped out.
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
subscriber1Result.Clear();
if (listener.IsEnabled("DataForSubscriber2"))
{
listener.Write("DataForSubscriber2", 2);
}
// Subscriber 1 filters
Assert.Equal(0, subscriber1Result.Count);
// Subscriber 2 has dropped out
Assert.Equal(0, subscriber2Result.Count);
} // subscriber1 drops out
/*********************************************************************/
/* No Subscribers are left */
/*********************************************************************/
// Things that neither subscribe to get filtered out.
subscriber1Result.Clear();
subscriber2Result.Clear();
if (listener.IsEnabled("DataToFilterOut"))
{
listener.Write("DataToFilterOut", -1);
}
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
// If a Source does not use the IsEnabled, then every subscriber gets it.
listener.Write("UnfilteredData", 3);
// No one subscribing
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
// Filters not filter out everything, they are just a performance optimization.
// Here you actually get more than you want even though you use a filter
if (listener.IsEnabled("DataForSubscriber1"))
{
listener.Write("DataForSubscriber1", 1);
}
// No one subscribing
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
/****************************************************/
if (listener.IsEnabled("DataForSubscriber2"))
{
listener.Write("DataForSubscriber2", 2);
}
// No one subscribing
Assert.Equal(0, subscriber1Result.Count);
Assert.Equal(0, subscriber2Result.Count);
}
}
public void TestActivities()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestActivitiesSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
eventSourceListener.Enable(
"TestActivitiesSource/TestActivity1Start@Activity1Start\r\n" +
"TestActivitiesSource/TestActivity1Stop@Activity1Stop\r\n" +
"TestActivitiesSource/TestActivity2Start@Activity2Start\r\n" +
"TestActivitiesSource/TestActivity2Stop@Activity2Stop\r\n" +
"TestActivitiesSource/TestEvent\r\n"
);
// Start activity 1
diagnosticSourceListener.Write("TestActivity1Start", new { propStr = "start" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity1Start", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("start", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Start nested activity 2
diagnosticSourceListener.Write("TestActivity2Start", new { propStr = "start" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity2Start", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("start", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Send a normal event
diagnosticSourceListener.Write("TestEvent", new { propStr = "event" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Event", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("event", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop nested activity 2
diagnosticSourceListener.Write("TestActivity2Stop", new { propStr = "stop" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity2Stop", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("stop", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop activity 1
diagnosticSourceListener.Write("TestActivity1Stop", new { propStr = "stop" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity1Stop", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("stop", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestNoImplicitTransforms()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestNoImplicitTransformsSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// use the - prefix to suppress the implicit properties. Thus you should only get propStr and Url.
eventSourceListener.Enable("TestNoImplicitTransformsSource/TestEvent1:-propStr;cls.Url");
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass() { Url = "MyUrl", Point = new MyPoint() { X = 3, Y = 5 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val, propStr2 = "there" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNoImplicitTransformsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("MyUrl", eventSourceListener.LastEvent.Arguments["Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestSpecificEvents()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestSpecificEventsSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types You can have whitespace
// before and after each spec.
eventSourceListener.Enable(
" TestSpecificEventsSource/TestEvent1:cls_Point_X=cls.Point.X;cls_Point_Y=cls.Point.Y\r\n" +
" TestSpecificEventsSource/TestEvent2:cls_Url=cls.Url\r\n"
);
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass() { Url = "MyUrl", Point = new MyPoint() { X = 3, Y = 5 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestSpecificEventsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(4, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("4", eventSourceListener.LastEvent.Arguments["propInt"]);
Assert.Equal("3", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
Assert.Equal("5", eventSourceListener.LastEvent.Arguments["cls_Point_Y"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event that matches the second pattern.
if (diagnosticSourceListener.IsEnabled("TestEvent2"))
diagnosticSourceListener.Write("TestEvent2", new { prop2Str = "hello", prop2Int = 8, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestSpecificEventsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(3, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hello", eventSourceListener.LastEvent.Arguments["prop2Str"]);
Assert.Equal("8", eventSourceListener.LastEvent.Arguments["prop2Int"]);
Assert.Equal("MyUrl", eventSourceListener.LastEvent.Arguments["cls_Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Emit an event that does not match either pattern. (thus will be filtered out)
if (diagnosticSourceListener.IsEnabled("TestEvent3"))
diagnosticSourceListener.Write("TestEvent3", new { propStr = "prop3", });
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
/***************************************************************************************/
// Emit an event from another diagnostic source with the same event name.
// It will be filtered out.
using (var diagnosticSourceListener2 = new DiagnosticListener("TestSpecificEventsSource2"))
{
if (diagnosticSourceListener2.IsEnabled("TestEvent1"))
diagnosticSourceListener2.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
// Disable all the listener and insure that no more events come through.
eventSourceListener.Disable();
diagnosticSourceListener.Write("TestEvent1", null);
diagnosticSourceListener.Write("TestEvent2", null);
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be received.
}
// Make sure that there are no Diagnostic Listeners left over.
DiagnosticListener.AllListeners.Subscribe(DiagnosticSourceTest.MakeObserver(delegate (DiagnosticListener listen)
{
Assert.True(!listen.Name.StartsWith("BuildTestSource"));
}));
}
public void TestWildCardEventName()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestWildCardEventNameSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types
eventSourceListener.Enable("TestWildCardEventNameSource");
/***************************************************************************************/
// Emit an event, check that all implicit properties are generated
MyClass val = new MyClass()
{
Url = "MyUrl", Point = new MyPoint()
{
X = 3, Y = 5
}
};
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardEventNameSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(3, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal(val.GetType().FullName, eventSourceListener.LastEvent.Arguments["cls"]); // ToString on cls is the class name
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("4", eventSourceListener.LastEvent.Arguments["propInt"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit the same event, with a different set of implicit properties
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { propStr2 = "hi2", cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardEventNameSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal(val.GetType().FullName, eventSourceListener.LastEvent.Arguments["cls"]); // ToString on cls is the class name
Assert.Equal("hi2", eventSourceListener.LastEvent.Arguments["propStr2"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event from another diagnostic source with the same event name.
// It will be filtered out.
using (var diagnosticSourceListener2 = new DiagnosticListener("TestWildCardEventNameSource2"))
{
if (diagnosticSourceListener2.IsEnabled("TestEvent1"))
{
diagnosticSourceListener2.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
}
}
/// <summary>
/// Notifies listeners that activity was ended and lost during execution.
/// </summary>
/// <param name="activity">Activity to notify about.</param>
/// <param name="context">Current HttpContext.</param>
public static void StopLostActivity(Activity activity, HttpContext context)
{
context.Items[ActivityKey] = null;
AspNetListener.Write(AspNetActivityLostStopName, new { activity });
AspNetTelemetryCorrelationEventSource.Log.ActivityStopped(activity.Id, AspNetActivityLostStopName);
}
private async ValueTask <HttpResponseMessage> SendAsyncCore(HttpRequestMessage request, bool async,
CancellationToken cancellationToken)
{
// HttpClientHandler is responsible to call static DiagnosticsHandler.IsEnabled() before forwarding request here.
// It will check if propagation is on (because parent Activity exists or there is a listener) or off (forcibly disabled)
// This code won't be called unless consumer unsubscribes from DiagnosticListener right after the check.
// So some requests happening right after subscription starts might not be instrumented. Similarly,
// when consumer unsubscribes, extra requests might be instrumented
if (request == null)
{
throw new ArgumentNullException(nameof(request), SR.net_http_handler_norequest);
}
Activity? activity = null;
DiagnosticListener diagnosticListener = Settings.s_diagnosticListener;
// if there is no listener, but propagation is enabled (with previous IsEnabled() check)
// do not write any events just start/stop Activity and propagate Ids
if (!diagnosticListener.IsEnabled())
{
activity = new Activity(DiagnosticsHandlerLoggingStrings.ActivityName);
activity.Start();
InjectHeaders(activity, request);
try
{
return(async ?
await base.SendAsync(request, cancellationToken).ConfigureAwait(false) :
base.Send(request, cancellationToken));
}
finally
{
activity.Stop();
}
}
Guid loggingRequestId = Guid.Empty;
// There is a listener. Check if listener wants to be notified about HttpClient Activities
if (diagnosticListener.IsEnabled(DiagnosticsHandlerLoggingStrings.ActivityName, request))
{
activity = new Activity(DiagnosticsHandlerLoggingStrings.ActivityName);
// Only send start event to users who subscribed for it, but start activity anyway
if (diagnosticListener.IsEnabled(DiagnosticsHandlerLoggingStrings.ActivityStartName))
{
diagnosticListener.StartActivity(activity, new ActivityStartData(request));
}
else
{
activity.Start();
}
}
// try to write System.Net.Http.Request event (deprecated)
if (diagnosticListener.IsEnabled(DiagnosticsHandlerLoggingStrings.RequestWriteNameDeprecated))
{
long timestamp = Stopwatch.GetTimestamp();
loggingRequestId = Guid.NewGuid();
diagnosticListener.Write(DiagnosticsHandlerLoggingStrings.RequestWriteNameDeprecated,
new RequestData(request, loggingRequestId, timestamp));
}
// If we are on at all, we propagate current activity information
Activity?currentActivity = Activity.Current;
if (currentActivity != null)
{
InjectHeaders(currentActivity, request);
}
HttpResponseMessage?response = null;
TaskStatus taskStatus = TaskStatus.RanToCompletion;
try
{
response = async ?
await base.SendAsync(request, cancellationToken).ConfigureAwait(false) :
base.Send(request, cancellationToken);
return(response);
}
catch (OperationCanceledException)
{
taskStatus = TaskStatus.Canceled;
// we'll report task status in HttpRequestOut.Stop
throw;
}
catch (Exception ex)
{
taskStatus = TaskStatus.Faulted;
if (diagnosticListener.IsEnabled(DiagnosticsHandlerLoggingStrings.ExceptionEventName))
{
// If request was initially instrumented, Activity.Current has all necessary context for logging
// Request is passed to provide some context if instrumentation was disabled and to avoid
// extensive Activity.Tags usage to tunnel request properties
diagnosticListener.Write(DiagnosticsHandlerLoggingStrings.ExceptionEventName, new ExceptionData(ex, request));
}
throw;
}
finally
{
// always stop activity if it was started
if (activity != null)
{
diagnosticListener.StopActivity(activity, new ActivityStopData(
response,
// If request is failed or cancelled, there is no response, therefore no information about request;
// pass the request in the payload, so consumers can have it in Stop for failed/canceled requests
// and not retain all requests in Start
request,
taskStatus));
}
// Try to write System.Net.Http.Response event (deprecated)
if (diagnosticListener.IsEnabled(DiagnosticsHandlerLoggingStrings.ResponseWriteNameDeprecated))
{
long timestamp = Stopwatch.GetTimestamp();
diagnosticListener.Write(DiagnosticsHandlerLoggingStrings.ResponseWriteNameDeprecated,
new ResponseData(
response,
loggingRequestId,
timestamp,
taskStatus));
}
}
}
public ISubscription Subscribe(string @namespace, string eventTypeFilter, Func <EventMessage, Task> handler)
{
if (string.IsNullOrEmpty(@namespace))
{
throw new ArgumentNullException(nameof(@namespace));
}
if (string.IsNullOrEmpty(eventTypeFilter))
{
throw new ArgumentNullException(nameof(eventTypeFilter));
}
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
var channel = _conn.CreateModel();
channel.ExchangeDeclare(@namespace, ChannelType);
var queueName = channel.QueueDeclare().QueueName;
channel.QueueBind(queueName, @namespace, eventTypeFilter);
var consumer = new AsyncEventingBasicConsumer(channel);
async Task EventHandler(object sender, BasicDeliverEventArgs @event)
{
var eventMessage = new EventMessage
{
Namespace = @event.Exchange,
RoutingKey = @event.RoutingKey,
EventType = @event.BasicProperties.Type,
ContentType = @event.BasicProperties.ContentType,
ContentEncoding = @event.BasicProperties.ContentEncoding,
Timestamp = DateTimeOffset.FromUnixTimeMilliseconds(@event.BasicProperties.Timestamp.UnixTime),
MessageBody = @event.Body
};
Activity activity = null;
if (_diagnostics != null && _diagnostics.IsEnabled() && _diagnostics.IsEnabled(DiagnosticOperations.MessageHandling, @event))
{
activity = new Activity(DiagnosticOperations.MessageHandling);
if (@event.BasicProperties != null)
{
if (!string.IsNullOrEmpty(@event.BasicProperties.CorrelationId))
{
activity.SetParentId(@event.BasicProperties.CorrelationId);
}
if (@event.BasicProperties.Headers != null && @event.BasicProperties.Headers.Any())
{
@event.BasicProperties.Headers.ToList().ForEach(i => activity.AddBaggage(i.Key, i.Value.ToString()));
}
}
_diagnostics.StartActivity(activity, @event);
}
try
{
await handler(eventMessage);
}
catch (Exception e)
{
if (_diagnostics != null && _diagnostics.IsEnabled() && _diagnostics.IsEnabled(DiagnosticOperations.MessageHandling, @event))
{
_diagnostics.Write(DiagnosticOperations.MessageHandlingError, e);
}
}
finally
{
if (_diagnostics != null && _diagnostics.IsEnabled() && _diagnostics.IsEnabled(DiagnosticOperations.MessageHandling, @event) && activity != null)
{
_diagnostics.StopActivity(activity, @event);
}
}
}
consumer.Received += EventHandler;
channel.BasicConsume(consumer, queueName, true);
return(new Subscription(@namespace, eventTypeFilter, () => consumer.Received -= EventHandler));
}
public void InitializeSetsTelemetryOperationNameToControllerFromActionContext()
{
var actionContext = new ActionContext();
actionContext.RouteData = new RouteData();
actionContext.RouteData.Values.Add("controller", "home");
var contextAccessor = HttpContextAccessorHelper.CreateHttpContextAccessor(new RequestTelemetry(), actionContext);
var telemetryListener = new DiagnosticListener(TestListenerName);
var initializer = new OperationNameTelemetryInitializer(contextAccessor, telemetryListener);
telemetryListener.Write(OperationNameTelemetryInitializer.BeforeActionNotificationName,
new { httpContext = contextAccessor.HttpContext, routeData = actionContext.RouteData });
var telemetry = new EventTelemetry();
initializer.Initialize(telemetry);
Assert.Equal("GET home", telemetry.Context.Operation.Name);
}
public void TestWildCardSourceName()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener1 = new DiagnosticListener("TestWildCardSourceName1"))
using (var diagnosticSourceListener2 = new DiagnosticListener("TestWildCardSourceName2"))
{
eventSourceListener.Filter = (DiagnosticSourceEvent evnt) => evnt.SourceName.StartsWith("TestWildCardSourceName");
// Turn On Everything. Note that because of concurrent testing, we may get other sources as well.
// but we filter them out because we set eventSourceListener.Filter.
eventSourceListener.Enable("");
Assert.True(diagnosticSourceListener1.IsEnabled("TestEvent1"));
Assert.True(diagnosticSourceListener1.IsEnabled("TestEvent2"));
Assert.True(diagnosticSourceListener2.IsEnabled("TestEvent1"));
Assert.True(diagnosticSourceListener2.IsEnabled("TestEvent2"));
Assert.Equal(0, eventSourceListener.EventCount);
diagnosticSourceListener1.Write("TestEvent1", new { prop111 = "prop111Val", prop112 = 112 });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardSourceName1", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("prop111Val", eventSourceListener.LastEvent.Arguments["prop111"]);
Assert.Equal("112", eventSourceListener.LastEvent.Arguments["prop112"]);
eventSourceListener.ResetEventCountAndLastEvent();
diagnosticSourceListener1.Write("TestEvent2", new { prop121 = "prop121Val", prop122 = 122 });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardSourceName1", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("prop121Val", eventSourceListener.LastEvent.Arguments["prop121"]);
Assert.Equal("122", eventSourceListener.LastEvent.Arguments["prop122"]);
eventSourceListener.ResetEventCountAndLastEvent();
diagnosticSourceListener2.Write("TestEvent1", new { prop211 = "prop211Val", prop212 = 212 });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardSourceName2", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("prop211Val", eventSourceListener.LastEvent.Arguments["prop211"]);
Assert.Equal("212", eventSourceListener.LastEvent.Arguments["prop212"]);
eventSourceListener.ResetEventCountAndLastEvent();
diagnosticSourceListener2.Write("TestEvent2", new { prop221 = "prop221Val", prop222 = 122 });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardSourceName2", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("prop221Val", eventSourceListener.LastEvent.Arguments["prop221"]);
Assert.Equal("122", eventSourceListener.LastEvent.Arguments["prop222"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestWildCardEventName()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestWildCardEventNameSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types
eventSourceListener.Enable("TestWildCardEventNameSource");
/***************************************************************************************/
// Emit an event, check that all implicit properties are generated
MyClass val = new MyClass() { Url = "MyUrl", Point = new MyPoint() { X = 3, Y = 5 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardEventNameSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("4", eventSourceListener.LastEvent.Arguments["propInt"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit the same event, with a different set of implicit properties
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr2 = "hi2", cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestWildCardEventNameSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi2", eventSourceListener.LastEvent.Arguments["propStr2"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event from another diagnostic source with the same event name.
// It will be filtered out.
using (var diagnosticSourceListener2 = new DiagnosticListener("TestWildCardEventNameSource2"))
{
if (diagnosticSourceListener2.IsEnabled("TestEvent1"))
diagnosticSourceListener2.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
}
}
public void TestActivities()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestActivitiesSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
eventSourceListener.Enable(
"TestActivitiesSource/TestActivity1Start@Activity1Start\r\n" +
"TestActivitiesSource/TestActivity1Stop@Activity1Stop\r\n" +
"TestActivitiesSource/TestActivity2Start@Activity2Start\r\n" +
"TestActivitiesSource/TestActivity2Stop@Activity2Stop\r\n" +
"TestActivitiesSource/TestEvent\r\n"
);
// Start activity 1
diagnosticSourceListener.Write("TestActivity1Start", new { propStr = "start" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity1Start", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("start", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Start nested activity 2
diagnosticSourceListener.Write("TestActivity2Start", new { propStr = "start" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity2Start", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("start", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Send a normal event
diagnosticSourceListener.Write("TestEvent", new { propStr = "event" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Event", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("event", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop nested activity 2
diagnosticSourceListener.Write("TestActivity2Stop", new { propStr = "stop" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity2Stop", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("stop", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop activity 1
diagnosticSourceListener.Write("TestActivity1Stop", new { propStr = "stop" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("TestActivitiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestActivity1Stop", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("stop", eventSourceListener.LastEvent.Arguments["propStr"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestNulls()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestNullsTestSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types
eventSourceListener.Enable("TestNullsTestSource/TestEvent1:cls.Url;cls_Point_X=cls.Point.X");
/***************************************************************************************/
// Emit a null arguments object.
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", null);
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(0, eventSourceListener.LastEvent.Arguments.Count);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object with nulls in it.
MyClass val = null;
string strVal = null;
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { cls = val, propStr = "propVal1", propStrNull = strVal });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("", eventSourceListener.LastEvent.Arguments["propStrNull"]); // null strings get turned into empty strings
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object that points at null things
MyClass val1 = new MyClass() { Url = "myUrlVal", Point = null };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { cls = val1, propStr = "propVal1" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("myUrlVal", eventSourceListener.LastEvent.Arguments["Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object that points at null things (variation 2)
MyClass val2 = new MyClass() { Url = null, Point = new MyPoint() { X = 8, Y = 9 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { cls = val2, propStr = "propVal1" });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("8", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestShortcutKeywords()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
// These are look-alikes for the real ones.
using (var aspNetCoreSource = new DiagnosticListener("Microsoft.AspNetCore"))
using (var entityFrameworkCoreSource = new DiagnosticListener("Microsoft.EntityFrameworkCore"))
{
// These are from DiagnosticSourceEventListener.
var Messages = (EventKeywords)0x1;
var Events = (EventKeywords)0x2;
var AspNetCoreHosting = (EventKeywords)0x1000;
var EntityFrameworkCoreCommands = (EventKeywords)0x2000;
// Turn on listener using just the keywords
eventSourceListener.Enable(null, Messages | Events | AspNetCoreHosting | EntityFrameworkCoreCommands);
Assert.Equal(0, eventSourceListener.EventCount);
// Start a ASP.NET Request
aspNetCoreSource.Write("Microsoft.AspNetCore.Hosting.BeginRequest",
new
{
httpContext = new
{
Request = new
{
Method = "Get",
Host = "MyHost",
Path = "MyPath",
QueryString = "MyQuery"
}
}
});
// Check that the morphs work as expected.
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.AspNetCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.AspNetCore.Hosting.BeginRequest", eventSourceListener.LastEvent.EventName);
Assert.True(4 <= eventSourceListener.LastEvent.Arguments.Count);
Debug.WriteLine("Arg Keys = " + string.Join(" ", eventSourceListener.LastEvent.Arguments.Keys));
Debug.WriteLine("Arg Values = " + string.Join(" ", eventSourceListener.LastEvent.Arguments.Values));
Assert.Equal("Get", eventSourceListener.LastEvent.Arguments["Method"]);
Assert.Equal("MyHost", eventSourceListener.LastEvent.Arguments["Host"]);
Assert.Equal("MyPath", eventSourceListener.LastEvent.Arguments["Path"]);
Assert.Equal("MyQuery", eventSourceListener.LastEvent.Arguments["QueryString"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Start a SQL command
entityFrameworkCoreSource.Write("Microsoft.EntityFrameworkCore.BeforeExecuteCommand",
new
{
Command = new
{
Connection = new
{
DataSource = "MyDataSource",
Database = "MyDatabase",
},
CommandText = "MyCommand"
}
});
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.EntityFrameworkCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.EntityFrameworkCore.BeforeExecuteCommand", eventSourceListener.LastEvent.EventName);
Assert.True(3 <= eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("MyDataSource", eventSourceListener.LastEvent.Arguments["DataSource"]);
Assert.Equal("MyDatabase", eventSourceListener.LastEvent.Arguments["Database"]);
Assert.Equal("MyCommand", eventSourceListener.LastEvent.Arguments["CommandText"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop the SQL command
entityFrameworkCoreSource.Write("Microsoft.EntityFrameworkCore.AfterExecuteCommand", null);
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.EntityFrameworkCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.EntityFrameworkCore.AfterExecuteCommand", eventSourceListener.LastEvent.EventName);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop the ASP.NET request.
aspNetCoreSource.Write("Microsoft.AspNetCore.Hosting.EndRequest",
new
{
httpContext = new
{
Response = new
{
StatusCode = "200"
},
TraceIdentifier = "MyTraceId"
}
});
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.AspNetCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.AspNetCore.Hosting.EndRequest", eventSourceListener.LastEvent.EventName);
Assert.True(2 <= eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("MyTraceId", eventSourceListener.LastEvent.Arguments["TraceIdentifier"]);
Assert.Equal("200", eventSourceListener.LastEvent.Arguments["StatusCode"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestBadProperties()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestBadPropertiesSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// This has a syntax error in the Url case, so it should be ignored.
eventSourceListener.Enable("TestBadPropertiesSource/TestEvent1:cls.Ur-+l");
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass() { Url = "MyUrl", Point = new MyPoint() { X = 3, Y = 5 } };
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestBadPropertiesSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("4", eventSourceListener.LastEvent.Arguments["propInt"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void LinuxNewLineConventions()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("LinuxNewLineConventionsSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types You can have whitespace
// before and after each spec. Use \n rather than \r\n
eventSourceListener.Enable(
" LinuxNewLineConventionsSource/TestEvent1:-cls_Point_X=cls.Point.X\n" +
" LinuxNewLineConventionsSource/TestEvent2:-cls_Url=cls.Url\n"
);
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass()
{
Url = "MyUrl", Point = new MyPoint()
{
X = 3, Y = 5
}
};
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("LinuxNewLineConventionsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("3", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event that matches the second pattern.
if (diagnosticSourceListener.IsEnabled("TestEvent2"))
{
diagnosticSourceListener.Write("TestEvent2", new { prop2Str = "hello", prop2Int = 8, cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("LinuxNewLineConventionsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(1, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("MyUrl", eventSourceListener.LastEvent.Arguments["cls_Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Emit an event that does not match either pattern. (thus will be filtered out)
if (diagnosticSourceListener.IsEnabled("TestEvent3"))
{
diagnosticSourceListener.Write("TestEvent3", new { propStr = "prop3", });
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
}
// Make sure that there are no Diagnostic Listeners left over.
DiagnosticListener.AllListeners.Subscribe(DiagnosticSourceTest.MakeObserver(delegate(DiagnosticListener listen)
{
Assert.True(!listen.Name.StartsWith("BuildTestSource"));
}));
}
public void TestShortcutKeywords()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
// These are look-alikes for the real ones.
using (var aspNetCoreSource = new DiagnosticListener("Microsoft.AspNetCore"))
using (var entityFrameworkCoreSource = new DiagnosticListener("Microsoft.EntityFrameworkCore"))
{
// These are from DiagnosticSourceEventListener.
var Messages = (EventKeywords)0x1;
var Events = (EventKeywords)0x2;
var AspNetCoreHosting = (EventKeywords)0x1000;
var EntityFrameworkCoreCommands = (EventKeywords)0x2000;
// Turn on listener using just the keywords
eventSourceListener.Enable(null, Messages | Events | AspNetCoreHosting | EntityFrameworkCoreCommands);
Assert.Equal(0, eventSourceListener.EventCount);
// Start a ASP.NET Request
aspNetCoreSource.Write("Microsoft.AspNetCore.Hosting.BeginRequest",
new
{
httpContext = new
{
Request = new
{
Method = "Get",
Host = "MyHost",
Path = "MyPath",
QueryString = "MyQuery"
}
}
});
// Check that the morphs work as expected.
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.AspNetCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.AspNetCore.Hosting.BeginRequest", eventSourceListener.LastEvent.EventName);
Assert.True(4 <= eventSourceListener.LastEvent.Arguments.Count);
Debug.WriteLine("Arg Keys = " + string.Join(" ", eventSourceListener.LastEvent.Arguments.Keys));
Debug.WriteLine("Arg Values = " + string.Join(" ", eventSourceListener.LastEvent.Arguments.Values));
Assert.Equal("Get", eventSourceListener.LastEvent.Arguments["Method"]);
Assert.Equal("MyHost", eventSourceListener.LastEvent.Arguments["Host"]);
Assert.Equal("MyPath", eventSourceListener.LastEvent.Arguments["Path"]);
Assert.Equal("MyQuery", eventSourceListener.LastEvent.Arguments["QueryString"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Start a SQL command
entityFrameworkCoreSource.Write("Microsoft.EntityFrameworkCore.BeforeExecuteCommand",
new
{
Command = new
{
Connection = new
{
DataSource = "MyDataSource",
Database = "MyDatabase",
},
CommandText = "MyCommand"
}
});
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Start", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.EntityFrameworkCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.EntityFrameworkCore.BeforeExecuteCommand", eventSourceListener.LastEvent.EventName);
Assert.True(3 <= eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("MyDataSource", eventSourceListener.LastEvent.Arguments["DataSource"]);
Assert.Equal("MyDatabase", eventSourceListener.LastEvent.Arguments["Database"]);
Assert.Equal("MyCommand", eventSourceListener.LastEvent.Arguments["CommandText"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop the SQL command
entityFrameworkCoreSource.Write("Microsoft.EntityFrameworkCore.AfterExecuteCommand", null);
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity2Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.EntityFrameworkCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.EntityFrameworkCore.AfterExecuteCommand", eventSourceListener.LastEvent.EventName);
eventSourceListener.ResetEventCountAndLastEvent();
// Stop the ASP.NET reqeust.
aspNetCoreSource.Write("Microsoft.AspNetCore.Hosting.EndRequest", null);
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("Activity1Stop", eventSourceListener.LastEvent.EventSourceEventName);
Assert.Equal("Microsoft.AspNetCore", eventSourceListener.LastEvent.SourceName);
Assert.Equal("Microsoft.AspNetCore.Hosting.EndRequest", eventSourceListener.LastEvent.EventName);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public void TestSpecificEvents()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestSpecificEventsSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types You can have whitespace
// before and after each spec.
eventSourceListener.Enable(
" TestSpecificEventsSource/TestEvent1:cls_Point_X=cls.Point.X;cls_Point_Y=cls.Point.Y\r\n" +
" TestSpecificEventsSource/TestEvent2:cls_Url=cls.Url\r\n"
);
/***************************************************************************************/
// Emit an event that matches the first pattern.
MyClass val = new MyClass()
{
Url = "MyUrl", Point = new MyPoint()
{
X = 3, Y = 5
}
};
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestSpecificEventsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(4, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hi", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("4", eventSourceListener.LastEvent.Arguments["propInt"]);
Assert.Equal("3", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
Assert.Equal("5", eventSourceListener.LastEvent.Arguments["cls_Point_Y"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an event that matches the second pattern.
if (diagnosticSourceListener.IsEnabled("TestEvent2"))
{
diagnosticSourceListener.Write("TestEvent2", new { prop2Str = "hello", prop2Int = 8, cls = val });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestSpecificEventsSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent2", eventSourceListener.LastEvent.EventName);
Assert.Equal(3, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("hello", eventSourceListener.LastEvent.Arguments["prop2Str"]);
Assert.Equal("8", eventSourceListener.LastEvent.Arguments["prop2Int"]);
Assert.Equal("MyUrl", eventSourceListener.LastEvent.Arguments["cls_Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
// Emit an event that does not match either pattern. (thus will be filtered out)
if (diagnosticSourceListener.IsEnabled("TestEvent3"))
{
diagnosticSourceListener.Write("TestEvent3", new { propStr = "prop3", });
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
/***************************************************************************************/
// Emit an event from another diagnostic source with the same event name.
// It will be filtered out.
using (var diagnosticSourceListener2 = new DiagnosticListener("TestSpecificEventsSource2"))
{
if (diagnosticSourceListener2.IsEnabled("TestEvent1"))
{
diagnosticSourceListener2.Write("TestEvent1", new { propStr = "hi", propInt = 4, cls = val });
}
}
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be fired.
// Disable all the listener and insure that no more events come through.
eventSourceListener.Disable();
diagnosticSourceListener.Write("TestEvent1", null);
diagnosticSourceListener.Write("TestEvent2", null);
Assert.Equal(0, eventSourceListener.EventCount); // No Event should be received.
}
// Make sure that there are no Diagnostic Listeners left over.
DiagnosticListener.AllListeners.Subscribe(DiagnosticSourceTest.MakeObserver(delegate(DiagnosticListener listen)
{
Assert.True(!listen.Name.StartsWith("BuildTestSource"));
}));
}
public void TestNulls()
{
using (var eventSourceListener = new TestDiagnosticSourceEventListener())
using (var diagnosticSourceListener = new DiagnosticListener("TestNullsTestSource"))
{
Assert.Equal(0, eventSourceListener.EventCount);
// Turn on events with both implicit and explicit types
eventSourceListener.Enable("TestNullsTestSource/TestEvent1:cls.Url;cls_Point_X=cls.Point.X");
/***************************************************************************************/
// Emit a null arguments object.
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", null);
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(0, eventSourceListener.LastEvent.Arguments.Count);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object with nulls in it.
MyClass val = null;
string strVal = null;
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { cls = val, propStr = "propVal1", propStrNull = strVal });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("", eventSourceListener.LastEvent.Arguments["propStrNull"]); // null strings get turned into empty strings
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object that points at null things
MyClass val1 = new MyClass()
{
Url = "myUrlVal", Point = null
};
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { cls = val1, propStr = "propVal1" });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("myUrlVal", eventSourceListener.LastEvent.Arguments["Url"]);
eventSourceListener.ResetEventCountAndLastEvent();
/***************************************************************************************/
// Emit an arguments object that points at null things (variation 2)
MyClass val2 = new MyClass()
{
Url = null, Point = new MyPoint()
{
X = 8, Y = 9
}
};
if (diagnosticSourceListener.IsEnabled("TestEvent1"))
{
diagnosticSourceListener.Write("TestEvent1", new { cls = val2, propStr = "propVal1" });
}
Assert.Equal(1, eventSourceListener.EventCount); // Exactly one more event has been emitted.
Assert.Equal("TestNullsTestSource", eventSourceListener.LastEvent.SourceName);
Assert.Equal("TestEvent1", eventSourceListener.LastEvent.EventName);
Assert.Equal(2, eventSourceListener.LastEvent.Arguments.Count);
Assert.Equal("propVal1", eventSourceListener.LastEvent.Arguments["propStr"]);
Assert.Equal("8", eventSourceListener.LastEvent.Arguments["cls_Point_X"]);
eventSourceListener.ResetEventCountAndLastEvent();
}
}
public static void DiagnosticSourceTest()
{
#region DiagnosticSource
var diagnosticListener =
new DiagnosticListener(DiagnosticStrings.DiagnosticListenerName);
////订阅方法一
//DiagnosticListener.AllListeners.Subscribe(new MyObserver<DiagnosticListener>(listener =>
//{
// //判断发布者的名字
// if (listener.Name == DiagnosticStrings.DiagnosticListenerName)
// {
// //获取订阅信息
// listener.Subscribe(new MyObserver<KeyValuePair<string, object>>(listenerData =>
// {
// Console.WriteLine($"监听名称:{listenerData.Key}");
// dynamic data = listenerData.Value;
// Console.WriteLine(data.Sql);
// }));
// }
//}));
////订阅方法二
DiagnosticListener.AllListeners.Subscribe(new MyObserver <DiagnosticListener>(listener =>
{
if (listener.Name == DiagnosticStrings.DiagnosticListenerName)
{
//适配订阅
listener.SubscribeWithAdapter(new MyDiagnosticListener());
}
}));
//订阅方法三
//diagnosticListener.SubscribeWithAdapter(new MyDiagnosticListener());
diagnosticListener.SubscribeWithAdapter(new SqlBuilderDiagnosticListener(null));
//发送日志诊断消息
if (diagnosticListener.IsEnabled(DiagnosticStrings.BeforeExecute) &&
diagnosticListener.IsEnabled(DiagnosticStrings.AfterExecute) &&
diagnosticListener.IsEnabled(DiagnosticStrings.ErrorExecute))
{
var message = new DiagnosticsMessage
{
Sql = "select * from table",
Parameters = new Dictionary <string, object>
{
["key"] = "123"
},
Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
};
diagnosticListener.Write(
DiagnosticStrings.BeforeExecute,
message);
message.ElapsedMilliseconds = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() - message.Timestamp;
diagnosticListener.Write(
DiagnosticStrings.AfterExecute,
message);
message.ElapsedMilliseconds = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() - message.Timestamp;
message.Exception = new Exception("测试异常");
diagnosticListener.Write(
DiagnosticStrings.ErrorExecute,
message);
}
#endregion
}