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

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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
  
}