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LogManager.Setup() - SetupBuilderExtension with LoadConfigurationFrom…
…AppSettings
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103 changes: 103 additions & 0 deletions
103
src/NLog.Web.AspNetCore/Config/SetupBuilderExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| using System; | ||
| #if !ASP_NET_CORE1 && !ASP_NET_CORE2 | ||
| using System.IO; | ||
| using System.Linq; | ||
| #endif | ||
| using Microsoft.Extensions.Configuration; | ||
| using NLog.Config; | ||
| using NLog.Extensions.Logging; | ||
|
|
||
| namespace NLog.Web | ||
| { | ||
| /// <summary> | ||
| /// Extension methods to setup LogFactory options | ||
| /// </summary> | ||
| public static class SetupBuilderExtensions | ||
| { | ||
| #if !ASP_NET_CORE1 && !ASP_NET_CORE2 | ||
| /// <summary> | ||
| /// Loads NLog LoggingConfiguration from appsettings.json from the NLog-section | ||
| /// </summary> | ||
| public static ISetupBuilder LoadConfigurationFromAppSettings(this ISetupBuilder setupBuilder, string basePath = null, string environment = null, string nlogConfigSection = "NLog", bool optional = true, bool reloadOnChange = false) | ||
| { | ||
| environment = environment ?? GetAspNetCoreEnvironment("DOTNET_ENVIRONMENT") ?? GetAspNetCoreEnvironment("ASPNETCORE_ENVIRONMENT") ?? "Production"; | ||
|
|
||
| var builder = new ConfigurationBuilder() | ||
| // Host Configuration | ||
| .SetBasePath(basePath ?? Directory.GetCurrentDirectory()) | ||
| .AddEnvironmentVariables(prefix: "ASPNETCORE_") | ||
| .AddEnvironmentVariables(prefix: "DOTNET_") | ||
| // App Configuration | ||
| .AddJsonFile("appsettings.json", optional, reloadOnChange) | ||
| .AddJsonFile($"appsettings.{environment}.json", optional: true, reloadOnChange: reloadOnChange) | ||
| .AddEnvironmentVariables(); | ||
|
|
||
| var config = builder.Build(); | ||
| if (!string.IsNullOrEmpty(nlogConfigSection) && config.GetSection(nlogConfigSection)?.GetChildren().Any() == true) | ||
| { | ||
| return setupBuilder.SetupExtensions(e => e.AutoLoadAssemblies(false).RegisterNLogWeb()).LoadConfigurationFromSection(config, nlogConfigSection); | ||
| } | ||
| else | ||
| { | ||
| setupBuilder.SetupExtensions(e => e.AutoLoadAssemblies(false).RegisterNLogWeb().RegisterConfigSettings(config)); | ||
|
|
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| if (!string.IsNullOrEmpty(basePath)) | ||
| { | ||
| if (!string.IsNullOrEmpty(environment)) | ||
| { | ||
| setupBuilder.LoadConfigurationFromFile(Path.Combine(basePath, $"nlog.{environment}.config"), optional: true); | ||
| } | ||
|
|
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| setupBuilder.LoadConfigurationFromFile(Path.Combine(basePath, "nlog.config"), optional: true); | ||
| } | ||
| else if (!string.IsNullOrEmpty(environment)) | ||
| { | ||
| setupBuilder.LoadConfigurationFromFile($"nlog.{environment}.config", optional: true); | ||
| } | ||
|
|
||
| return setupBuilder.LoadConfigurationFromFile(); // No effect, if config already loaded | ||
| } | ||
| } | ||
|
|
||
| private static string GetAspNetCoreEnvironment(string variableName) | ||
| { | ||
| try | ||
| { | ||
| var environment = Environment.GetEnvironmentVariable(variableName); | ||
| if (string.IsNullOrWhiteSpace(environment)) | ||
| return null; | ||
|
|
||
| return environment.Trim(); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| NLog.Common.InternalLogger.Error(ex, "Failed to lookup environment variable {0}", variableName); | ||
| return null; | ||
| } | ||
| } | ||
| #endif | ||
|
|
||
| /// <summary> | ||
| /// Convience method to register aspnet-layoutrenders in NLog.Web as one-liner before loading NLog.config | ||
| /// </summary> | ||
| /// <remarks> | ||
| /// If not providing <paramref name="serviceProvider"/>, then output from aspnet-layoutrenderers will remain empty | ||
| /// </remarks> | ||
| public static ISetupBuilder RegisterNLogWeb(this ISetupBuilder setupBuilder, IConfiguration configuration = null, IServiceProvider serviceProvider = null) | ||
| { | ||
| setupBuilder.SetupExtensions(builder => builder.AutoLoadAssemblies(false).RegisterNLogWeb(serviceProvider)); | ||
|
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| if (configuration == null && serviceProvider != null) | ||
| { | ||
| configuration = serviceProvider.GetService(typeof(IConfiguration)) as IConfiguration; | ||
| } | ||
|
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| if (configuration != null) | ||
| { | ||
| setupBuilder.SetupExtensions(builder => builder.RegisterConfigSettings(configuration)); | ||
| } | ||
|
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||
| return setupBuilder; | ||
| } | ||
| } | ||
| } |
40 changes: 40 additions & 0 deletions
40
src/NLog.Web.AspNetCore/Config/SetupExtensionsBuilderExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| using System; | ||
| using System.Reflection; | ||
| using Microsoft.Extensions.Configuration; | ||
| using NLog.Config; | ||
| using NLog.Extensions.Logging; | ||
| using NLog.Web.DependencyInjection; | ||
|
|
||
| namespace NLog.Web | ||
| { | ||
| /// <summary> | ||
| /// Extension methods to setup NLog extensions, so they are known when loading NLog LoggingConfiguration | ||
| /// </summary> | ||
| public static class SetupExtensionsBuilderExtensions | ||
| { | ||
| /// <summary> | ||
| /// Replace with version from NLog.Extension.Logging when it has been released with NLog 4.7 | ||
| /// </summary> | ||
| internal static ISetupExtensionsBuilder RegisterConfigSettings(this ISetupExtensionsBuilder setupBuilder, IConfiguration configuration) | ||
| { | ||
| ConfigSettingLayoutRenderer.DefaultConfiguration = configuration; | ||
| return setupBuilder.RegisterLayoutRenderer<ConfigSettingLayoutRenderer>("configsetting"); | ||
| } | ||
|
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| /// <summary> | ||
| /// Register the NLog.Web.AspNetCore LayoutRenderers | ||
| /// </summary> | ||
| /// <remarks> | ||
| /// If not providing <paramref name="serviceProvider"/>, then output from aspnet-layoutrenderers will remain empty | ||
| /// </remarks> | ||
| public static ISetupExtensionsBuilder RegisterNLogWeb(this ISetupExtensionsBuilder setupBuilder, IServiceProvider serviceProvider = null) | ||
| { | ||
| if (serviceProvider != null) | ||
| { | ||
| ServiceLocator.ServiceProvider = serviceProvider; | ||
| } | ||
|
|
||
| return setupBuilder.RegisterAssembly(typeof(NLogAspNetCoreOptions).GetTypeInfo().Assembly); | ||
| } | ||
| } | ||
| } |
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