private void AddLink(Association association, ObjectPlusPlus linkedObject, object qualifier, int counter)
{
if (counter < 1)
{
return;
}
if (linkedObject == null)
{
return;
}
if (association == null)
{
return;
}
if (!LegalAssociations.Any(x => x.Role.Equals(association.Role)))
{
throw new Exception("Association is not legal");
}
if (this.GetType() != association.StartClassifier)
{
throw new Exception("This object type is not correct");
}
if (linkedObject.GetType() != association.EndClassifier)
{
throw new Exception("Linked object type is not correct");
}
Dictionary <object, ObjectPlusPlus> roleLinks;
if (Links.ContainsKey(association.Role))
{
roleLinks = Links[association.Role];
}
else
{
roleLinks = new Dictionary <object, ObjectPlusPlus>();
Links.Add(association.Role, roleLinks);
}
if (!roleLinks.ContainsKey(linkedObject))
{
Association reverseAssociation = association.GetReversedAssociation();
switch (association.EndMultiplicityLimit)
{
case -1:
roleLinks.Add(qualifier, linkedObject);
if (reverseAssociation != null)
{
linkedObject.AddLink(reverseAssociation, this, this, counter - 1);
}
break;
case 0:
if (roleLinks.Count != 0)
{
throw new Exception("Multiplicity limit has been reached");
}
roleLinks.Add(qualifier, linkedObject);
linkedObject.AddLink(reverseAssociation, this, this, counter - 1);
break;
default:
if (roleLinks.Count >= association.EndMultiplicityLimit)
{
throw new Exception("Multiplicity limit has been reached");
}
roleLinks.Add(qualifier, linkedObject);
linkedObject.AddLink(reverseAssociation, this, this, counter - 1);
break;
}
}
}