private int dataLength;

    public ArtifactTransferEvent(
            String wagon, final int eventType, final int requestType, ArtifactTransferResource artifact) {
        super(wagon);

        setEventType(eventType);

        setRequestType(requestType);

        this.artifact = artifact;
    }

    public ArtifactTransferEvent(

    }

    private ArtifactTransferEvent wrap(TransferEvent event) {
        if (event == null) {
            return null;
        } else {
            String wagon = event.getWagon().getClass().getName();

            ArtifactTransferResource artifact = wrap(event.getWagon().getRepository(), event.getResource());

            ArtifactTransferEvent evt;
            if (event.getException() != null) {