private void ParseArcs(XElement xLink, Link link)
{
var xArcs = xLink.Descendants().Where(d => d.Attribute(XLinkXNames.ArcRole) != null).ToList();
foreach (var xArc in xArcs)
{
var arc = CreateArc(xArc);
if (arc != null)
{
link.AddArc(arc);
}
}
}