Umbraco-CMS/src/Umbraco.Core/Logging/LoggingEventHelper.cs

using System;
using log4net.Core;

namespace Umbraco.Core.Logging
{
    /// <remarks>
    /// Borrowed from https://github.com/cjbhaines/Log4Net.Async - will reference Nuget packages directly in v8
    /// </remarks>
    internal sealed class LoggingEventHelper
    {
        // needs to be a seperate class so that location is determined correctly by log4net when required

        private static readonly Type HelperType = typeof(LoggingEventHelper);
        private readonly string loggerName;

        public FixFlags Fix { get; set; }

        public LoggingEventHelper(string loggerName, FixFlags fix)
        {
            this.loggerName = loggerName;
            Fix = fix;
        }

        public LoggingEvent CreateLoggingEvent(Level level, string message, Exception exception)
        {
            var loggingEvent = new LoggingEvent(HelperType, null, loggerName, level, message, exception)
            {
                Fix = Fix
            };
            return loggingEvent;
        }
    }
}