Revert "Use single instance of WebhostMetricsLogger"

This reverts commit e9d2df3.

Author: yojagad

src/WebJobs.Script.WebHost/DependencyInjection/DependencyValidator/DependencyValidator.cs

@@ -29,7 +29,7 @@ private static ExpectedDependencyBuilder CreateExpectedDependencies()
             expected.ExpectNone<IEventGenerator>();
 
             expected.Expect<ILoggerFactory, ScriptLoggerFactory>();
-            expected.ExpectInstance<IMetricsLogger, WebHostMetricsLogger>();
+            expected.Expect<IMetricsLogger, WebHostMetricsLogger>();
 
             expected.Expect<IWebJobsExceptionHandler, WebScriptHostExceptionHandler>();
 

src/WebJobs.Script.WebHost/WebHostServiceCollectionExtensions.cs

@@ -109,6 +109,9 @@ public static void AddWebJobsScriptHost(this IServiceCollection services, IConfi
             services.AddTransient<VirtualFileSystem>();
             services.AddTransient<VirtualFileSystemMiddleware>();
 
+            // Logging and diagnostics
+            services.AddSingleton<IMetricsLogger, WebHostMetricsLogger>();
+
             // Secret management
             services.TryAddSingleton<ISecretManagerProvider, DefaultSecretManagerProvider>();
 

src/WebJobs.Script.WebHost/WebScriptHostBuilderExtension.cs

@@ -91,13 +91,7 @@ public static IHostBuilder AddWebScriptHost(this IHostBuilder builder, IServiceP
                     }
 
                     // Logging and diagnostics
-                    // Get WebHostMetricsLogger registered at webhost
-                    IMetricsLogger metricsLogger = rootServiceProvider.GetService<IMetricsLogger>();
-                    if (metricsLogger != null)
-                    {
-                        services.AddSingleton(metricsLogger);
-                    }
-
+                    services.AddSingleton<IMetricsLogger, WebHostMetricsLogger>();
                     services.AddSingleton<IEventCollectorProvider, FunctionInstanceLogCollectorProvider>();
 
                     // Hosted services

src/WebJobs.Script/ScriptHostBuilderExtensions.cs

@@ -133,10 +133,7 @@ public static IHostBuilder AddScriptHostCore(this IHostBuilder builder, ScriptAp
                 services.AddSingleton<ITypeLocator, ScriptTypeLocator>();
                 services.AddSingleton<ScriptSettingsManager>();
                 services.AddTransient<IExtensionsManager, ExtensionsManager>();
-
-                // Fallback option if webhost is not present.
                 services.TryAddSingleton<IMetricsLogger, MetricsLogger>();
-
                 services.TryAddSingleton<IScriptJobHostEnvironment, ConsoleScriptJobHostEnvironment>();
                 services.AddTransient<IExtensionBundleContentProvider, ExtensionBundleContentProvider>();
 

test/WebJobs.Script.Tests/Description/DotNet/DotNetFunctionInvokerTests.cs

@@ -434,6 +434,8 @@ private RunDependencies CreateDependencies(Action<IServiceCollection> configureS
             compilationServiceFactory.Setup(f => f.CreateService(DotNetScriptTypes.CSharp, It.IsAny<IFunctionMetadataResolver>()))
                 .Returns(compilationService.Object);
 
+            var metricsLogger = new MetricsLogger();
+
             var hostBuilder = new HostBuilder()
                 .ConfigureDefaultTestWebScriptHost(o =>
                 {
@@ -459,7 +461,7 @@ private RunDependencies CreateDependencies(Action<IServiceCollection> configureS
                 CompilationServiceFactory = compilationServiceFactory,
                 LoggerProvider = loggerProvider,
                 LoggerFactory = loggerFactory,
-                MetricsLogger = new TestMetricsLogger(),
+                MetricsLogger = metricsLogger
             };
         }
 
@@ -493,7 +495,7 @@ private class RunDependencies
 
             public ILoggerFactory LoggerFactory { get; set; }
 
-            public IMetricsLogger MetricsLogger { get; set; }
+            public MetricsLogger MetricsLogger { get; set; }
         }
     }
 }