Revert "Revert "Make W3C Correlation default and leverage native W3C …

…support from new System.Diagnostics.DiagnosticSource Activity (#958)" (#962)"

This reverts commit c2929a9.

.vsts/linux-build.yml

@@ -21,37 +21,27 @@ steps:
     arguments: "--configuration Release"
 
 - task: DotNetCoreCLI@1
-  displayName: Test 2.0
+  displayName: Functional Tests 2.0
   continueOnError: true
   inputs:
     command: "test"
     projects: "test/**/*Tests20.csproj"
     arguments: "--configuration Release -l trx"
 
-- task: DotNetCoreInstaller@0
-  displayName: install dotnet core 1.1.5
-  inputs:
-    version: "1.1.5"
-
 - task: DotNetCoreCLI@1
-  displayName: Test 1.1.5
+  displayName: Unit Tests
   continueOnError: true
   inputs:
     command: "test"
-    projects: "test/**/*Tests.csproj"
-    arguments: "--configuration Release -l trx --filter Category!=WindowsOnly"
+    projects: "test/**/*AspNetCore.Tests.csproj"
+    arguments: "--configuration Release -l trx"
 
 
 - task: PublishTestResults@2
   inputs:
     testRunner: "VSTest"
     testResultsFiles: "**/*.trx"
 
-- task: DotNetCoreInstaller@0
-  displayName: install dotnet core 2.1.500
-  inputs:
-    version: "2.1.500"
-
 - task: DotNetCoreCLI@1
   displayName: Package Nuget
   inputs:
@@ -63,4 +53,4 @@ steps:
   inputs:
     PathtoPublish: "$(build.artifactstagingdirectory)"
     ArtifactName: "drop"
-    ArtifactType: "Container"
+    ArtifactType: "Container"

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## Version 2.8.0-beta3
+- [Make W3C Correlation default and leverage native W3C support from Activity.](https://github.com/microsoft/ApplicationInsights-aspnetcore/pull/958)
+- [Fixes Azure Functions performance degradation when W3C enabled.](https://github.com/microsoft/ApplicationInsights-aspnetcore/issues/900)
+- [Fix: AppId is never set is Response Headers.](https://github.com/microsoft/ApplicationInsights-aspnetcore/issues/956)
+
 ## Version 2.8.0-beta2
 - [Fix MVCBeforeAction property fetcher to work with .NET Core 3.0 changes.](https://github.com/microsoft/ApplicationInsights-aspnetcore/issues/936)
 - [Catch generic exception from DiagnosticSourceListeners and log instead of failing user request.](https://github.com/microsoft/ApplicationInsights-aspnetcore/issues/957)

src/Microsoft.ApplicationInsights.AspNetCore/DiagnosticListeners/Implementation/HeadersUtilities.cs

@@ -72,6 +72,7 @@ public static StringValues SetHeaderKeyValue(string[] currentHeaders, string key
         /// Http Headers only allow Printable US-ASCII characters.
         /// Remove all other characters.
         /// </summary>
+        /// <returns>sanitized string.</returns>
         public static string SanitizeString(string input)
         {
             if (string.IsNullOrWhiteSpace(input))

src/Microsoft.ApplicationInsights.AspNetCore/DiagnosticListeners/Implementation/MvcDiagnosticsListener.cs

@@ -9,20 +9,20 @@ namespace Microsoft.ApplicationInsights.AspNetCore.DiagnosticListeners
     using Microsoft.AspNetCore.Http;
 
     /// <summary>
-    /// <see cref="IApplicationInsightDiagnosticListener"/> implementation that listens for evens specific to AspNetCore Mvc layer
+    /// <see cref="IApplicationInsightDiagnosticListener"/> implementation that listens for events specific to AspNetCore Mvc layer.
     /// </summary>
     [Obsolete("This class was merged with HostingDiagnosticsListener to optimize Diagnostics Source subscription performance")]
     public class MvcDiagnosticsListener : IApplicationInsightDiagnosticListener
     {
-        /// <inheritdoc />
-        public string ListenerName { get; } = "Microsoft.AspNetCore";
-
         private readonly PropertyFetcher httpContextFetcher = new PropertyFetcher("httpContext");
         private readonly PropertyFetcher routeDataFetcher = new PropertyFetcher("routeData");
         private readonly PropertyFetcher routeValuesFetcher = new PropertyFetcher("Values");
 
+        /// <inheritdoc />
+        public string ListenerName { get; } = "Microsoft.AspNetCore";
+
         /// <summary>
-        /// Diagnostic event handler method for 'Microsoft.AspNetCore.Mvc.BeforeAction' event
+        /// Diagnostic event handler method for 'Microsoft.AspNetCore.Mvc.BeforeAction' event.
         /// </summary>
         public void OnBeforeAction(HttpContext httpContext, IDictionary<string, object> routeValues)
         {
@@ -40,6 +40,49 @@ public void OnBeforeAction(HttpContext httpContext, IDictionary<string, object>
             }
         }
 
+        /// <inheritdoc />
+        public void OnSubscribe()
+        {
+        }
+
+        /// <inheritdoc />
+        public void OnNext(KeyValuePair<string, object> value)
+        {
+            try
+            {
+                if (value.Key == "Microsoft.AspNetCore.Mvc.BeforeAction")
+                {
+                    var context = this.httpContextFetcher.Fetch(value.Value) as HttpContext;
+                    var routeData = this.routeDataFetcher.Fetch(value.Value);
+                    var routeValues = this.routeValuesFetcher.Fetch(routeData) as IDictionary<string, object>;
+
+                    if (context != null && routeValues != null)
+                    {
+                        this.OnBeforeAction(context, routeValues);
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                AspNetCoreEventSource.Instance.DiagnosticListenerWarning("MvcDiagnosticsListener", value.Key, ex.Message);
+            }
+        }
+
+        /// <inheritdoc />
+        public void OnError(Exception error)
+        {
+        }
+
+        /// <inheritdoc />
+        public void OnCompleted()
+        {
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+        }
+
         private string GetNameFromRouteContext(IDictionary<string, object> routeValues)
         {
             string name = null;
@@ -95,48 +138,5 @@ private string GetNameFromRouteContext(IDictionary<string, object> routeValues)
 
             return name;
         }
-
-        /// <inheritdoc />
-        public void OnSubscribe()
-        {
-        }
-
-        /// <inheritdoc />
-        public void OnNext(KeyValuePair<string, object> value)
-        {
-            try
-            {
-                if (value.Key == "Microsoft.AspNetCore.Mvc.BeforeAction")
-                {
-                    var context = this.httpContextFetcher.Fetch(value.Value) as HttpContext;
-                    var routeData = routeDataFetcher.Fetch(value.Value);
-                    var routeValues = routeValuesFetcher.Fetch(routeData) as IDictionary<string, object>;
-
-                    if (context != null && routeValues != null)
-                    {
-                        this.OnBeforeAction(context, routeValues);
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                AspNetCoreEventSource.Instance.DiagnosticListenerWarning("MvcDiagnosticsListener", value.Key, ex.Message);
-            }
-        }
-
-        /// <inheritdoc />
-        public void OnError(Exception error)
-        {
-        }
-
-        /// <inheritdoc />
-        public void OnCompleted()
-        {
-        }
-
-        /// <inheritdoc />
-        public void Dispose()
-        {
-        }
     }
 }

src/Microsoft.ApplicationInsights.AspNetCore/DiagnosticListeners/Implementation/RequestResponseHeaders.cs

@@ -29,5 +29,14 @@ internal static class RequestResponseHeaders
         /// Correlation-Context header.
         /// </summary>
         public const string CorrelationContextHeader = "Correlation-Context";
+
+        //
+        // Summary:
+        //     W3C traceparent header name.
+        public const string TraceParentHeader = "traceparent";
+        //
+        // Summary:
+        //     W3C tracestate header name.
+        public const string TraceStateHeader = "tracestate";
     }
 }

src/Microsoft.ApplicationInsights.AspNetCore/Extensibility/Implementation/Tracing/AspNetCoreEventSource.cs

@@ -111,18 +111,27 @@ public void LogHostingDiagnosticListenerOnHttpRequestInStartActivityNull(string
             this.WriteEvent(9, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when a TelemetryModule is not found to configure.
+        /// </summary>
         [Event(11, Message = "Unable to configure module {0} as it is not found in service collection.", Level = EventLevel.Warning, Keywords = Keywords.Diagnostics)]
         public void UnableToFindModuleToConfigure(string moduleType, string appDomainName = "Incorrect")
         {
             this.WriteEvent(11, moduleType, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when QuickPulseTelemetryModule is not found in service collection.
+        /// </summary>
         [Event(12, Message = "Unable to find QuickPulseTelemetryModule in service collection. LiveMetrics feature will not be available. Please add QuickPulseTelemetryModule to services collection in the ConfigureServices method of your application Startup class.", Level = EventLevel.Error, Keywords = Keywords.Diagnostics)]
         public void UnableToFindQuickPulseModuleInDI(string appDomainName = "Incorrect")
         {
             this.WriteEvent(12, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when telemetry is not tracked as the Listener is not active.
+        /// </summary>
         [Event(
             13,
             Keywords = Keywords.Diagnostics,
@@ -133,6 +142,9 @@ public void NotActiveListenerNoTracking(string evntName, string activityId, stri
             this.WriteEvent(13, evntName, activityId, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event for when generic error occur within the SDK.
+        /// </summary>
         [Event(
             14,
             Keywords = Keywords.Diagnostics,
@@ -143,6 +155,9 @@ public void LogError(string errorMessage, string appDomainName = "Incorrect")
             this.WriteEvent(14, errorMessage, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when RequestTrackingModule failed to initialize.
+        /// </summary>
         [Event(
             15,
             Keywords = Keywords.Diagnostics,
@@ -153,6 +168,9 @@ public void RequestTrackingModuleInitializationFailed(string errorMessage, strin
             this.WriteEvent(15, errorMessage, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when any error occurs within DiagnosticListener callback.
+        /// </summary>
         [Event(
             16,
             Keywords = Keywords.Diagnostics,
@@ -163,6 +181,9 @@ public void DiagnosticListenerWarning(string callback, string errorMessage, stri
             this.WriteEvent(16, callback, errorMessage, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an event when TelemetryConfiguration configure has failed.
+        /// </summary>
         [Event(
             17,
             Keywords = Keywords.Diagnostics,
@@ -172,7 +193,10 @@ public void TelemetryConfigurationSetupFailure(string errorMessage, string appDo
         {
             this.WriteEvent(17, errorMessage, this.ApplicationName);
         }
-
+
+        /// <summary>
+        /// Logs an event when a telemetry item is sampled out at head.
+        /// </summary>
         [Event(
             18,
             Keywords = Keywords.Diagnostics,
@@ -183,6 +207,42 @@ public void TelemetryItemWasSampledOutAtHead(string operationId, string appDomai
             this.WriteEvent(18, operationId, this.ApplicationName);
         }
 
+        /// <summary>
+        /// Logs an informational event from Hosting listeners.
+        /// </summary>
+        [Event(
+            19,
+            Message = "Hosting Major Version: '{0}'. Informational Message: '{1}'.",
+            Level = EventLevel.Informational)]
+        public void HostingListenerInformational(string hostingVersion, string message, string appDomainName = "Incorrect")
+        {
+            this.WriteEvent(19, hostingVersion, message, this.ApplicationName);
+        }
+
+        /// <summary>
+        /// Logs a verbose event.
+        /// </summary>
+        [Event(
+            20,
+            Message = "Message: '{0}'.",
+            Level = EventLevel.Verbose)]
+        public void HostingListenerVerboe(string message, string appDomainName = "Incorrect")
+        {
+            this.WriteEvent(20, message, this.ApplicationName);
+        }
+
+        /// <summary>
+        /// Logs an event for RequestTelemetry created.
+        /// </summary>
+        [Event(
+            21,
+            Message = "RequestTelemetry created. CorrelationFormat: '{0}', RequestID: '{1}', OperationId : '{2}' ",
+            Level = EventLevel.Informational)]
+        public void RequestTelemetryCreated(string correlationFormat, string requestId, string requestOperationId, string appDomainName = "Incorrect")
+        {
+            this.WriteEvent(21, correlationFormat, requestId, requestOperationId, this.ApplicationName);
+        }
+
         /// <summary>
         /// Keywords for the AspNetEventSource.
         /// </summary>