[英]How to create a MELA.ILogger from a Serilog.ILogger for use in a .NET Standard library
I am converting a .NET Standard utility library from console logging to ILogger
logging.我正在将 .NET 标准实用程序库从控制台日志记录转换为
ILogger
日志记录。
The library consists static utility classes, and I am exposing a static ILogger
property to be set by users, to point to whatever logging system they want to use.该库包含 static 实用程序类,我公开了一个 static
ILogger
属性,由用户设置,以指向他们想要使用的任何日志记录系统。
I want my .NET Core 3.1 and .NET 5 console apps to use Serilog for logging, and assign the library ILogger
to Serilog, with all the goodness that comes with Serilog.我希望我的 .NET Core 3.1 和 .NET 5 控制台应用程序使用 Serilog 进行日志记录,并将库
ILogger
分配给 Serilog,并具有 Serilog 附带的所有优点。 I am not using DI in the utility library, as it is static methods, not "service" classes.我没有在实用程序库中使用 DI,因为它是 static 方法,而不是“服务”类。
How do I manually (not using DI) create a Microsoft.Extensions.Logging.ILogger
from a Serilog.ILogger
or a Serilog.Extensions.Logging.SerilogLoggerFactory
.如何手动(不使用 DI)从
Serilog.ILogger
或Serilog.Extensions.Logging.SerilogLoggerFactory
创建Microsoft.Extensions.Logging.ILogger
。
Any suggestions on an easier way vs. the example code?关于更简单的方法与示例代码的任何建议?
// How to create a "Microsoft.Extensions.Logging.ILogger" from a "Serilog.ILogger"?
Microsoft.Extensions.Logging.ILogger logger = Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance;
// https://github.com/serilog/serilog-extensions-logging/blob/dev/samples/Sample/Program.cs
LoggerProviderCollection providerCollection = new LoggerProviderCollection();
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.Enrich.FromLogContext()
.WriteTo.Console()
.WriteTo.Providers(providerCollection)
.CreateLogger();
ServiceCollection serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(providerCollection);
serviceCollection.AddSingleton<ILoggerFactory>(sc =>
{
LoggerProviderCollection loggerProviderCollection = sc.GetService<LoggerProviderCollection>();
SerilogLoggerFactory serilogLoggerFactory = new SerilogLoggerFactory(null, true, loggerProviderCollection);
foreach (ILoggerProvider loggerProvider in sc.GetServices<ILoggerProvider>())
serilogLoggerFactory.AddProvider(loggerProvider);
return serilogLoggerFactory;
});
serviceCollection.AddLogging(logging => logging.AddConsole());
ServiceProvider serviceProvider = serviceCollection.BuildServiceProvider();
ILogger<Program> programLogger = serviceProvider.GetRequiredService<ILogger<Program>>();
logger = programLogger;
logger.LogInformation("Testing testing");
I found a solution with simpler code:我找到了一个代码更简单的解决方案:
// https://www.nexmo.com/legacy-blog/2020/02/10/adaptive-library-logging-with-microsoft-extensions-logging-dr
// Default : "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}"
// Serilog logger
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.WriteTo.Console(outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} {Level} {SourceContext} | {Message:lj}{NewLine}{Exception}",
theme: AnsiConsoleTheme.Code)
.CreateLogger();
// MEL logger factory
LoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddSerilog(Log.Logger);
// MEL logger
Microsoft.Extensions.Logging.ILogger logger = loggerFactory.CreateLogger("Foo");
logger.LogInformation("Testing testing");
The following worked for me.以下对我有用。
// existing serilog logger
Serilog.ILogger logger = Log.ForContext<MyType>();
// create MEL logger from serilog logger
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
loggerFactory.AddSerilog(logger);
var melLogger = loggerFactory.CreateLogger<MyType>();
// sample log message
melLogger.LogInformation("Sample log message");
Related NuGet packages:相关 NuGet 封装:
Serilog was configured in a separate project, that project included the Serilog.AspNetCore NuGet package only. Serilog 在一个单独的项目中配置,该项目仅包括 Serilog.AspNetCore NuGet package。
The reason why I needed to make a MEL logger was due to a 3rd party library.我需要制作 MEL 记录器的原因是由于第 3 方库。 That library only accepted an MEL logger provider.
该库仅接受 MEL 记录器提供程序。 This solution did not use dependency injection for the ILogger, so I had to do the conversion.
这个解决方案没有对 ILogger 使用依赖注入,所以我必须进行转换。
Here's the simplest way I could find:这是我能找到的最简单的方法:
Using Serilog;
Then in your method.然后在你的方法中。 Note: The melLogger in the snippet below is a new instance of the logger
注意:下面代码段中的 melLogger 是记录器的新实例
Log.Logger = new LoggerConfiguration()
.Enrich.FromLogContext()
.WriteTo.Debug(restrictedToMinimumLevel: LogEventLevel.Verbose)
.CreateLogger();
Microsoft.Extensions.Logging.ILogger melLogger= new SerilogLoggerProvider(Log.Logger)
.CreateLogger("WHATVER_YOU_WANT");
Then to use this system wide via dependency injection, the secret sauce being.UseSeriLog():然后通过依赖注入在整个系统范围内使用这个系统,秘诀是.UseSeriLog():
Host.CreateDefaultBuilder()
.UseSerilog()
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup(typeof(StartUp));
});
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