Adapt to upstream extension class name changes (#72)

* Adapt to upstream extension class name changes

Author: pyohannes

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## Unreleased
+
+### Bug fixes
+
+* [#71](https://github.com/grafana/grafana-opentelemetry-dotnet/issues/71):
+  Lazy-loading of ASP.NET Core instrumentation was broken. This was fixed by
+  updateing changed class names of ASP.NET Core instrumentation library
+  extension classes.
+
 ## 0.7.0-beta.1
 
 ### BREAKING CHANGES

src/Grafana.OpenTelemetry.Base/Instrumentations/AspNetCoreInitializer.cs

@@ -16,7 +16,7 @@ protected override void InitializeTracing(TracerProviderBuilder builder)
         {
             ReflectionHelper.CallStaticMethod(
                 "OpenTelemetry.Instrumentation.AspNetCore",
-                "OpenTelemetry.Trace.TracerProviderBuilderExtensions",
+                "OpenTelemetry.Trace.AspNetCoreInstrumentationTracerProviderBuilderExtensions",
                 "AddAspNetCoreInstrumentation",
                 new object[] { builder });
         }
@@ -25,7 +25,7 @@ protected override void InitializeMetrics(MeterProviderBuilder builder)
         {
             ReflectionHelper.CallStaticMethod(
                 "OpenTelemetry.Instrumentation.AspNetCore",
-                "OpenTelemetry.Metrics.MeterProviderBuilderExtensions",
+                "OpenTelemetry.Metrics.AspNetCoreInstrumentationMeterProviderBuilderExtensions",
                 "AddAspNetCoreInstrumentation",
                 new object[] { builder });
         }