Added NLogProviderOptions.IncludeActivtyIdsWithBeginScope

src/NLog.Extensions.Hosting/NLog.Extensions.Hosting.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp3.0;net50</TargetFrameworks>
     <DebugType Condition=" '$(Configuration)' == 'Debug' ">Full</DebugType>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
@@ -41,6 +41,10 @@ Full changelog: https://github.com/NLog/NLog.Extensions.Logging/blob/master/CHAN
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.0.0" />
   </ItemGroup>
 
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net50' ">
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="5.0.0" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
     <ProjectReference Include="..\NLog.Extensions.Logging\NLog.Extensions.Logging.csproj" />

src/NLog.Extensions.Logging/Logging/ActivityExtensions.cs

@@ -0,0 +1,44 @@
+#if NET5_0
+
+using System.Diagnostics;
+
+namespace NLog.Extensions.Logging
+{
+    /// <summary>
+    /// Helpers for getting the right values from Activity no matter the format (w3c or hierarchical)
+    /// </summary>
+    internal static class ActivityExtensions
+    {
+        public static string GetSpanId(this Activity activity)
+        {
+            return activity.IdFormat switch
+            {
+                ActivityIdFormat.Hierarchical => activity.Id,
+                ActivityIdFormat.W3C => activity.SpanId.ToHexString(),
+                _ => null,
+            } ?? string.Empty;
+        }
+
+        public static string GetTraceId(this Activity activity)
+        {
+            return activity.IdFormat switch
+            {
+                ActivityIdFormat.Hierarchical => activity.RootId,
+                ActivityIdFormat.W3C => activity.TraceId.ToHexString(),
+                _ => null,
+            } ?? string.Empty;
+        }
+
+        public static string GetParentId(this Activity activity)
+        {
+            return activity.IdFormat switch
+            {
+                ActivityIdFormat.Hierarchical => activity.ParentId,
+                ActivityIdFormat.W3C => activity.ParentSpanId.ToHexString(),
+                _ => null,
+            } ?? string.Empty;
+        }
+    }
+}
+
+#endif

src/NLog.Extensions.Logging/Logging/NLogBeginScopeParser.cs

@@ -31,7 +31,7 @@ public IDisposable ParseBeginScope<T>(T state)
             {
                 if (state is IReadOnlyList<KeyValuePair<string, object>> scopePropertyList)
                 {
-                    return ScopeProperties.CaptureScopeProperties(scopePropertyList);
+                    return ScopeProperties.CaptureScopeProperties(scopePropertyList, _options.IncludeActivtyIdsWithBeginScope);
                 }
 
                 if (!(state is string))
@@ -90,18 +90,89 @@ private static IDisposable CreateScopeProperties(object scopeObject, IReadOnlyLi
                 return NestedDiagnosticsLogicalContext.Push(scopeObject);
             }
 
-            public static IDisposable CaptureScopeProperties(IReadOnlyList<KeyValuePair<string, object>> scopePropertyList)
+            public static IDisposable CaptureScopeProperties(IReadOnlyList<KeyValuePair<string, object>> scopePropertyList, bool includeActivtyIdsWithBeginScope)
             {
                 object scopeObject = scopePropertyList;
 
-                if (scopePropertyList.Count > 0 && NLogLogger.OriginalFormatPropertyName.Equals(scopePropertyList[scopePropertyList.Count - 1].Key))
+                if (scopePropertyList.Count > 0)
                 {
-                    scopePropertyList = ExcludeOriginalFormatProperty(scopePropertyList);
+                    if (NLogLogger.OriginalFormatPropertyName.Equals(scopePropertyList[scopePropertyList.Count - 1].Key))
+                    {
+                        scopePropertyList = ExcludeOriginalFormatProperty(scopePropertyList);
+                    }
+                    else if (includeActivtyIdsWithBeginScope && "RequestId".Equals(scopePropertyList[0].Key))
+                    {
+                        scopePropertyList = IncludeActivityIdsProperties(scopePropertyList);
+                    }
                 }
 
                 return CreateScopeProperties(scopeObject, scopePropertyList);
             }
 
+#if !NET5_0
+            private static IReadOnlyList<KeyValuePair<string, object>> IncludeActivityIdsProperties(IReadOnlyList<KeyValuePair<string, object>> scopePropertyList)
+            {
+                return scopePropertyList;
+            }
+#else
+            private static IReadOnlyList<KeyValuePair<string, object>> IncludeActivityIdsProperties(IReadOnlyList<KeyValuePair<string, object>> scopePropertyList)
+            {
+                var activty = System.Diagnostics.Activity.Current;
+                if (activty != null)
+                    return new ScopePropertiesWithActivityIds(scopePropertyList, activty);
+                else
+                    return scopePropertyList;
+            }
+
+            private class ScopePropertiesWithActivityIds : IReadOnlyList<KeyValuePair<string, object>>
+            {
+                private readonly IReadOnlyList<KeyValuePair<string, object>> _originalPropertyList;
+                private readonly System.Diagnostics.Activity _currentActivity;
+
+                public ScopePropertiesWithActivityIds(IReadOnlyList<KeyValuePair<string, object>> originalPropertyList, System.Diagnostics.Activity currentActivity)
+                {
+                    _originalPropertyList = originalPropertyList;
+                    _currentActivity = currentActivity;
+                }
+
+                public KeyValuePair<string, object> this[int index]
+                {
+                    get
+                    {
+                        int offset = index - _originalPropertyList.Count;
+                        if (offset < 0)
+                        {
+                            return _originalPropertyList[index];
+                        }
+                        else
+                        {
+                            switch (offset)
+                            {
+                                case 0: return new KeyValuePair<string, object>(nameof(_currentActivity.SpanId), _currentActivity.GetSpanId());
+                                case 1: return new KeyValuePair<string, object>(nameof(_currentActivity.TraceId), _currentActivity.GetTraceId());
+                                case 2: return new KeyValuePair<string, object>(nameof(_currentActivity.ParentId), _currentActivity.GetParentId());
+                            }
+                        }
+
+                        throw new ArgumentOutOfRangeException(nameof(index));
+                    }
+                }
+
+                public int Count => _originalPropertyList.Count + 3;
+
+                public IEnumerator<KeyValuePair<string, object>> GetEnumerator()
+                {
+                    for (int i = 0; i < Count; ++i)
+                        yield return this[i];
+                }
+
+                IEnumerator IEnumerable.GetEnumerator()
+                {
+                    return ((IEnumerable)_originalPropertyList).GetEnumerator();
+                }
+            }
+#endif
+
             private static IReadOnlyList<KeyValuePair<string, object>> ExcludeOriginalFormatProperty(IReadOnlyList<KeyValuePair<string, object>> scopePropertyList)
             {
                 if (scopePropertyList.Count == 2 && !NLogLogger.OriginalFormatPropertyName.Equals(scopePropertyList[0].Key))

src/NLog.Extensions.Logging/Logging/NLogProviderOptions.cs

@@ -43,6 +43,18 @@ public class NLogProviderOptions
         /// </summary>
         public bool ShutdownOnDispose { get; set; }
 
+#if NET5_0
+        /// <summary>
+        /// Automatically include <see cref="System.Diagnostics.Activity.SpanId"/>, <see cref="System.Diagnostics.Activity.TraceId"/> and <see cref="System.Diagnostics.Activity.ParentId"/>
+        /// </summary>
+#else
+        /// <summary>
+        /// Automatically include Activity.SpanId, Activity.TraceId and Activity.ParentId.
+        /// </summary>
+#endif
+        /// <remarks>For Net5.0 where these properties are no longer included by default for performance reasons</remarks>
+        public bool IncludeActivtyIdsWithBeginScope { get; set; }
+
         /// <summary>Initializes a new instance NLogProviderOptions with default values.</summary>
         public NLogProviderOptions()
         {

src/NLog.Extensions.Logging/NLog.Extensions.Logging.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
 
-    <TargetFrameworks>net451;net461;netstandard1.3;netstandard1.5;netstandard2.0;netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>net451;net461;netstandard1.3;netstandard1.5;netstandard2.0;netcoreapp3.0;net50</TargetFrameworks>
     <DebugType Condition=" '$(Configuration)' == 'Debug' ">Full</DebugType>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
@@ -65,6 +65,10 @@ Full changelog: https://github.com/NLog/NLog.Extensions.Logging/blob/master/CHAN
     <Title>NLog.Extensions.Logging for .NET Core 3</Title>
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'net50' ">
+    <Title>NLog.Extensions.Logging for .NET 5.0</Title>
+    <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
+  </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="NLog" Version="4.7.5" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
@@ -96,6 +100,11 @@ Full changelog: https://github.com/NLog/NLog.Extensions.Logging/blob/master/CHAN
     <PackageReference Include="Microsoft.Extensions.Logging" Version="3.0.0" />
   </ItemGroup>
 
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net50' ">
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="5.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="5.0.0" />
+  </ItemGroup>
+
   <PropertyGroup>
     <AssemblyTitle>$(Title)</AssemblyTitle>
     <LangVersion>latest</LangVersion>