gistfile1.txt

public class ExceptionFingerprintEnricher : ILogEventEnricher
{
    private const string ThumbprintKey = "ExceptionThumbprint";
    private const string TypeKey = "ExceptionType";

    public void Enrich(LogEvent logEvent, ILogEventPropertyFactory propertyFactory)
    {
        if (logEvent.Exception == null) return;

        var fingerprint = ExceptionFingerPrinter.GetFingerprint(logEvent.Exception);

        logEvent.AddPropertyIfAbsent(propertyFactory.CreateProperty(ThumbprintKey, fingerprint));
        logEvent.AddPropertyIfAbsent(propertyFactory.CreateProperty(TypeKey, logEvent.Exception.GetType()));
    }
}