Changing the log level of log4net ​programatic​ally in a static helper class

This helper class changes the log level from whatever it was to what you define in the parameter, then restores it to what it was before. Handy little helper class.

/// <summary>
/// Executes a log entry at a temporarily changed log level
/// </summary>
/// <param name="logger">Logger instance</param>
/// <param name="level">Temporary log level</param>
/// <param name="action">Logger method call</param>
public static  void HardLog(ILog logger, Level level, Action action)
{
    Level previousLogLevel = ((log4net.Repository.Hierarchy.Hierarchy)logger.Logger.Repository).Root.Level;
  
    ((log4net.Repository.Hierarchy.Hierarchy)logger.Logger.Repository).Root.Level = level;
    ((log4net.Repository.Hierarchy.Hierarchy)logger.Logger.Repository).RaiseConfigurationChanged(EventArgs.Empty);
  
    action();
  
    ((log4net.Repository.Hierarchy.Hierarchy)logger.Logger.Repository).Root.Level = previousLogLevel;
    ((log4net.Repository.Hierarchy.Hierarchy)logger.Logger.Repository).Root.Level
  
}