private void SaveTraces(IEAElement element)
{
//first need to identify those tracelinks that were removed and those that were added
// currently traces do not support update and can only be added or removed
IEAElement[] existingTraces = element.GetTracedElements().ToArray();
// existing.except(traces) traces that have been deleted
IEnumerable <string> removedTraces =
existingTraces.Select(e => e.GUID).Except(Traces.Select(t => t.TracedElementGUID));
// traces.except(existing) traces that were added
IEnumerable <string> addedTraces =
Traces.Select(t => t.TracedElementGUID).Except(existingTraces.Select(e => e.GUID));
//in order to remove tracelink i need to find the correct connection that connect this and the linked element.
foreach (string removedTrace in removedTraces)
{
IEAConnector connector =
element.GetConnectors().FirstOrDefault(c => (c.GetSupplier().GUID.Equals(removedTrace) ||
c.GetClient().GUID.Equals(removedTrace))
&&
c.Stereotype.Equals(EAConstants.RelationTrace) &&
c.Type.Equals(EAConstants.AbstractionMetaType));
if (null != connector)
{
element.RemoveConnector(connector);
}
}
foreach (string addedTrace in addedTraces)
{
IEAElement suppliedElement = EAMain.Repository.GetElementByGUID(addedTrace);
element.ConnectTo(suppliedElement, EAConstants.AbstractionMetaType, EAConstants.RelationTrace);
}
}