public void MultiHost_TwoActiveAndOneIsDisposedStillTracksTelemetry()
{
var inclusionList = new[] { "Test.A" }.ToList();
var dl1 = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList);
dl1.Subscribe();
using (var listener = new DiagnosticListener("Test.A"))
using (var dl2 = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl2.Subscribe();
Activity activity = new Activity("Test.A.Client.Monitoring");
listener.StartActivity(activity, null);
listener.StopActivity(activity, null);
Assert.AreEqual(1, this.sentItems.Count(t => t is DependencyTelemetry));
dl1.Dispose();
activity = new Activity("Test.A.Client.Monitoring");
listener.StartActivity(activity, null);
listener.StopActivity(activity, null);
Assert.AreEqual(2, this.sentItems.Count(t => t is DependencyTelemetry));
}
}
public void MultiHost_OneListnerThenAnotherTracksTelemetry()
{
var inclusionList = new[] { "Test.A" }.ToList();
using (var listener = new DiagnosticListener("Test.A"))
{
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
Activity activity = new Activity("Test.A.Client.Monitoring");
listener.StartActivity(activity, null);
listener.StopActivity(activity, null);
Assert.AreEqual(1, this.sentItems.Count(t => t is DependencyTelemetry));
}
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
Activity activity = new Activity("Test.A.Client.Monitoring");
listener.StartActivity(activity, null);
listener.StopActivity(activity, null);
Assert.AreEqual(2, this.sentItems.Count(t => t is DependencyTelemetry));
}
}
}
public void TelemetryDiagnosticSourceListenerCollectsTelemetryFromRawActivity()
{
var inclusionList = new[] { "Test.A" }.ToList();
using (var listener = new DiagnosticListener("Test.A"))
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
// generic example
var tags = new Dictionary <string, string>()
{
["error"] = "true",
["peer.hostname"] = "test.example.com",
["custom.tag"] = "test"
};
DependencyTelemetry telemetryItem = this.CollectDependencyTelemetryFromActivity(listener, tags);
Assert.AreEqual(telemetryItem.Name, "Test.A.Client.Monitoring"); // Activity name
Assert.AreEqual(telemetryItem.Type, listener.Name);
Assert.IsTrue(string.IsNullOrEmpty(telemetryItem.Data));
Assert.AreEqual(telemetryItem.Target, tags["peer.hostname"]);
Assert.AreEqual(telemetryItem.Success, false);
Assert.IsTrue(telemetryItem.Properties.ContainsKey("custom.tag"));
Assert.AreEqual(telemetryItem.Properties["custom.tag"], tags["custom.tag"]);
}
}
public void TelemetryDiagnosticSourceListenerCallsCustomHandlersWhenEnabled()
{
var inclusionList = new[] { "Test.A:Send", "Test.B" }.ToList();
using (var telemetryListener = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
telemetryListener.Subscribe();
TestableEventHandler ahandler = new TestableEventHandler();
TestableEventHandler bhandler = new TestableEventHandler();
telemetryListener.RegisterHandler("Test.A", ahandler);
telemetryListener.RegisterHandler("Test.B", bhandler);
using (var listenerA = new DiagnosticListener("Test.A"))
using (var listenerB = new DiagnosticListener("Test.B"))
{
this.DoOperation(listenerA, "Send");
this.DoOperation(listenerA, "Receive");
this.DoOperation(listenerB, "Any");
}
Assert.AreEqual(1, ahandler.EventCalls.Count);
var testASend = ahandler.EventCalls[0];
Assert.AreEqual("Test.A", testASend.Item1);
Assert.AreEqual("Send.Stop", testASend.Item2.Key);
Assert.IsNull(testASend.Item2.Value);
Assert.AreEqual(1, bhandler.EventCalls.Count);
var testBAny = bhandler.EventCalls[0];
Assert.AreEqual("Test.B", testBAny.Item1);
Assert.AreEqual("Any.Stop", testBAny.Item2.Key);
Assert.IsNull(testBAny.Item2.Value);
}
}
public void TelemetryDiagnosticSourceListenerCapturesAllActivitiesByDefault()
{
var inclusionList = new[] { "Test.A" }.ToList();
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
DiagnosticListener listener = new DiagnosticListener("Test.A");
Activity activity = new Activity("Test.A.Client.Monitoring");
Assert.IsTrue(listener.IsEnabled(), "There is a subscriber for a new diagnostic source");
Assert.IsTrue(listener.IsEnabled(activity.OperationName), "There is a subscriber for a new activity");
Assert.IsTrue(
listener.IsEnabled(
activity.OperationName + TelemetryDiagnosticSourceListener.ActivityStopNameSuffix),
"There is a subscriber for new activity Stop event");
Assert.IsFalse(
listener.IsEnabled(activity.OperationName +
TelemetryDiagnosticSourceListener.ActivityStartNameSuffix),
"There are no subscribers for new activity Start event");
int sentCountBefore = this.sentItems.Count;
listener.StartActivity(activity, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity start");
listener.StopActivity(activity, null);
Assert.AreEqual(sentCountBefore + 1, this.sentItems.Count, "One new telemetry item should be sent on activity stop");
DependencyTelemetry telemetryItem = this.sentItems.Last() as DependencyTelemetry;
Assert.IsNotNull(telemetryItem, "Dependency telemetry item should be sent");
Assert.AreEqual(activity.OperationName, telemetryItem.Name);
}
}
/// <summary>
/// Initialize method is called after all configuration properties have been loaded from the configuration.
/// </summary>
public void Initialize(TelemetryConfiguration configuration)
{
DependencyCollectorEventSource.Log.RemoteDependencyModuleVerbose("Initializing DependencyTrackingModule");
// Temporary fix to make sure that we initialize module once.
// It should be removed when configuration reading logic is moved to Web SDK.
if (!this.isInitialized)
{
lock (this.lockObject)
{
if (!this.isInitialized)
{
try
{
this.telemetryConfiguration = configuration;
#if !NETCORE
// Net40 only supports runtime instrumentation
// Net45 supports either but not both to avoid duplication
this.InitializeForRuntimeInstrumentationOrFramework();
#endif
// NET45 referencing .net core System.Net.Http supports diagnostic listener
this.httpCoreDiagnosticSourceListener = new HttpCoreDiagnosticSourceListener(
configuration,
this.EffectiveProfileQueryEndpoint,
this.SetComponentCorrelationHttpHeaders,
this.ExcludeComponentCorrelationHttpHeadersOnDomains,
null);
if (this.IncludeDiagnosticSourceActivities != null && this.IncludeDiagnosticSourceActivities.Count > 0)
{
this.telemetryDiagnosticSourceListener = new TelemetryDiagnosticSourceListener(configuration, this.IncludeDiagnosticSourceActivities);
this.telemetryDiagnosticSourceListener.RegisterHandler(EventHubsDiagnosticsEventHandler.DiagnosticSourceName, new EventHubsDiagnosticsEventHandler(configuration));
this.telemetryDiagnosticSourceListener.RegisterHandler(ServiceBusDiagnosticsEventHandler.DiagnosticSourceName, new ServiceBusDiagnosticsEventHandler(configuration));
}
this.sqlClientDiagnosticSourceListener = new SqlClientDiagnosticSourceListener(configuration);
DependencyCollectorEventSource.Log.RemoteDependencyModuleVerbose("Initializing DependencyTrackingModule completed successfully.");
}
catch (Exception exc)
{
string clrVersion;
#if NETCORE
clrVersion = System.Reflection.Assembly.GetEntryAssembly().GetCustomAttribute <TargetFrameworkAttribute>().FrameworkName;
#else
clrVersion = Environment.Version.ToString();
#endif
DependencyCollectorEventSource.Log.RemoteDependencyModuleError(exc.ToInvariantString(), clrVersion);
}
this.PrepareActivity();
this.isInitialized = true;
}
}
}
}
public void TelemetryDiagnosticSourceListenerOnCreatedListener()
{
DiagnosticListener listener = new DiagnosticListener("Test.A");
var inclusionList = new[] { "Test.A" }.ToList();
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
Assert.IsTrue(listener.IsEnabled(), "There is a subscriber for a new diagnostic source");
}
}
public void TelemetryDiagnosticSourceListenerIgnoresNotIncludedActivities()
{
var inclusionList = new[] { "Test.A:Test.A.Client.Monitoring" }.ToList();
using (var listener = new DiagnosticListener("Test.A"))
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
// Diagnostic Source is not ignored
Assert.IsTrue(listener.IsEnabled(), "There is a subscriber for diagnostic source");
// Activity1 is ignored per exclusion
Activity activity1 = new Activity("Test.A.Activity1");
Assert.IsFalse(listener.IsEnabled(activity1.OperationName), "There are no subscribers for activity 1");
int sentCountBefore = this.sentItems.Count;
listener.StartActivity(activity1, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity 1 start");
listener.StopActivity(activity1, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity 1 stop");
// Activity2 is ignored per exclusion
Activity activity2 = new Activity("Test.A.Activity2");
Assert.IsFalse(listener.IsEnabled(activity2.OperationName), "There are no subscribers for activity 2");
listener.StartActivity(activity2, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity 2 start");
listener.StopActivity(activity2, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity 2 stop");
// non-excluded activity from same diagnostic source is captured
Activity activity = new Activity("Test.A.Client.Monitoring");
Assert.IsTrue(listener.IsEnabled(activity.OperationName), "There is a subscriber for activity");
listener.StartActivity(activity, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity start");
listener.StopActivity(activity, null);
Assert.AreEqual(sentCountBefore + 1, this.sentItems.Count, "One new telemetry item should be sent on activity stop");
DependencyTelemetry telemetryItem = this.sentItems.Last() as DependencyTelemetry;
Assert.IsNotNull(telemetryItem, "Dependency telemetry item should be sent");
Assert.AreEqual(telemetryItem.Name, activity.OperationName);
}
}
public void TelemetryDiagnosticSourceListenerIgnoresNotIncludedSources()
{
var inclusionList = new[] { "Test.B" }.ToList();
using (var listenerA = new DiagnosticListener("Test.A"))
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
// Diagnostic Source A is ignored
Activity activityA = new Activity("Test.A.Client.Monitoring");
Assert.IsFalse(listenerA.IsEnabled(), "There are no subscribers for excluded diagnostic source A");
Assert.IsFalse(listenerA.IsEnabled(activityA.OperationName), "There are no subscribers for activity A");
int sentCountBefore = this.sentItems.Count;
listenerA.StartActivity(activityA, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity start");
listenerA.StopActivity(activityA, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count, "No telemetry item should be sent on activity stop");
// Diagnostic Source B is still captured
using (var listenerB = new DiagnosticListener("Test.B"))
{
Activity activityB = new Activity("Test.B.Client.Monitoring");
Assert.IsTrue(listenerB.IsEnabled(), "There is a subscriber for diagnostic source B");
Assert.IsTrue(listenerB.IsEnabled(activityB.OperationName), "There is a subscriber for activity B");
listenerB.StartActivity(activityB, null);
Assert.AreEqual(sentCountBefore, this.sentItems.Count,
"No telemetry item should be sent on activity start");
listenerB.StopActivity(activityB, null);
Assert.AreEqual(sentCountBefore + 1, this.sentItems.Count,
"One new telemetry item should be sent on activity B stop");
DependencyTelemetry telemetryItem = this.sentItems.Last() as DependencyTelemetry;
Assert.IsNotNull(telemetryItem, "Dependency telemetry item should be sent");
Assert.AreEqual(telemetryItem.Name, activityB.OperationName);
}
}
}
public void TelemetryDiagnosticSourceListenerCollectsTelemetryFromRawActivityWithoutParent()
{
var inclusionList = new List <string> {
"Test.A"
};
using (var listener = new DiagnosticListener("Test.A"))
using (var dl = new TelemetryDiagnosticSourceListener(this.configuration, inclusionList))
{
dl.Subscribe();
var activity = new Activity("Test.A.Activity1");
listener.StartActivity(activity, null);
listener.StopActivity(activity, null);
var telemetryItem = this.sentItems.Last() as DependencyTelemetry;
Assert.AreEqual(activity.SpanId.ToHexString(), telemetryItem.Id);
Assert.AreEqual(activity.TraceId.ToHexString(), telemetryItem.Context.Operation.Id);
Assert.AreEqual(null, telemetryItem.Context.Operation.ParentId);
}
}