What would a Log4Net Wrapper class look like?

Question

I have been looking for a logging framework for .net (c#) and decided to give log4net a go after reading up on a few question/answer threads here on stackoverflow. I see peo

Answer 1

There are frameworks like the Prism Library for WPF that promote the usage of a facade for the logging framework of your choice.

This is an example that uses log4net:

using System;
using log4net;
using log4net.Core;
using Prism.Logging;

public class Log4NetLoggerFacade : ILoggerFacade
{
    private static readonly ILog Log4NetLog = LogManager.GetLogger(typeof (Log4NetLoggerFacade));

    public void Log(string message, Category category, Priority priority)
    {
        switch (category)
        {
            case Category.Debug:
                Log4NetLog.Logger.Log(typeof(Log4NetLoggerFacade), Level.Debug, message, null);
                break;
            case Category.Exception:
                Log4NetLog.Logger.Log(typeof(Log4NetLoggerFacade), Level.Error, message, null);
                break;
            case Category.Info:
                Log4NetLog.Logger.Log(typeof(Log4NetLoggerFacade), Level.Info, message, null);
                break;
            case Category.Warn:
                Log4NetLog.Logger.Log(typeof(Log4NetLoggerFacade), Level.Warn, message, null);
                break;
            default:
                throw new ArgumentOutOfRangeException(nameof(category), category, null);
        }
    }
}

Note that by specifying the callerStackBoundaryDeclaringType you can still get the class name of the caller issuing the logging request. All you need to do is to include %C %M in your conversion pattern:

However, as the documentation warns, generating the caller class information is slow, therefore it must be used wisely.