private static Activity ParseActivity(DcrGraph graph, XDocument doc, XElement eve)
{
var nestedEvents = eve.Descendants("event").Where(element => element.HasElements).ToList(); //Only takes event elements in events!
bool isNestedGraph = nestedEvents.Count > 0;
// Retrieve Id
var id = eve.Attribute("id").Value;
// Retrieve Name:
var name = (from labelMapping in doc.Descendants("labelMapping")
where labelMapping.Attribute("eventId").Value.Equals(id)
select labelMapping.Attribute("labelId").Value).FirstOrDefault();
// Check to see if Activity was already parsed
if (graph.GetActivities().ToList().Exists(x => x.Id == id && x.Name == name)) return null;
Activity activityToReturn;
if (isNestedGraph)
{
var nestedActivities = new HashSet<Activity>();
foreach (var nestedEvent in nestedEvents)
{
nestedActivities.Add(ParseActivity(graph, doc, nestedEvent));
}
activityToReturn = graph.MakeNestedGraph(id, name, nestedActivities);
}
else // Not a nested graph --> Treat as single activity
{
// Add activity to graph
activityToReturn = graph.AddActivity(id, name);
// Assigning Roles:
var roles = eve.Descendants("role");
var rolesList = new List<string>();
foreach (var role in roles)
{
if (role.Value != "") graph.AddRolesToActivity(id,role.Value);
}
// Mark Included
if ((from includedEvent in doc.Descendants("included").Elements()
select includedEvent.FirstAttribute.Value).Contains(id)) graph.SetIncluded(true, id);
// Mark Pending:
if ((from pendingEvent in doc.Descendants("pendingResponses").Elements()
select pendingEvent.FirstAttribute.Value).Contains(id)) graph.SetPending(true, id);
// Mark Executed:
if ((from executedEvent in doc.Descendants("executed").Elements()
select executedEvent.FirstAttribute.Value).Contains(id)) graph.SetExecuted(true, id);
}
return activityToReturn;
}