如何创建在ASP.Net Core中记录到文件的第二个记录器？

Question

我的Startup配置方法中有一个记录器：

public void Configure(
    IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory ) {
    loggerFactory.AddConsole( Configuration.GetSection( "Logging" ) );
    loggerFactory.AddDebug();
    loggerFactory.AddFile(@"C:\Some\Path\portal-{Date}.txt");

我创建了一个实现IActionFilter.的BenchmarkFilter类。启用后，它将在Action Methods上运行一些性能基准测试。我可以通过DI传递这个记录器但是我需要这个以csv格式登录到新的文件位置。我怎么会这样呢？我的班级到目前为止：

public class BenchmarkFilter : IActionFilter
{
    private readonly ILogger _logger;
    private readonly bool _isBenchmarkOn;
    private string _benchmarkFilePath;

    private Stopwatch _stopWatch = new Stopwatch();

    public BenchmarkFilter(
        ILoggerFactory loggerFactory, IOptions<AppSettings> appSettings)
    {
        _isBenchmarkOn = appSettings.Value.EnableBenchmarkLogging;
        _benchmarkFilePath = appSettings.Value.BenchmarkFilePath;
    }

    public void OnActionExecuting(ActionExecutingContext context)
    {
        if (_isBenchmarkOn)
        {
            _stopWatch = Stopwatch.StartNew();
        }
    }

    public void OnActionExecuted(ActionExecutedContext context)
    {
        if (_stopWatch.IsRunning)
        {
            _stopWatch.Stop();
            var seconds = _stopWatch.ElapsedMilliseconds;
            //logging to do
        }
    }
}