LoggerBehavior.cs

public class LoggerBehavior : IBehavior<IncomingContext>
{
    private static readonly ILog logger = LogManager.GetLogger(typeof(LoggerBehavior));

    public void Invoke(IncomingContext context, Action next)
    {
        try
        {
            logger.Info("Entered the behavior.");
            next();
            logger.Info("Exited the behavior.");
        }
        catch (Exception ex)
        {
            logger.Error("Finished processing with errors.", ex);
        }
    }
}