//Algorithm to be implemented in derived classes
public virtual void Execute(IFamilyTree tree, IFamilyMember source = null)
{
if (tree == null || tree.Root == null)
{
throw new ArgumentNullException("Tree cannot be null.");
}
this.tree = tree;
if (source != null)
{
if (!tree.MemberExists(source))
{
throw new NotInFamilyTreeException(source);
}
//prevent source from being inlaw. Inlaws do not have parents, which
//breaks traversal.
if (source.HasFact(FactType.InLaw))
{
throw new InvalidSourceException(source);
}
source.AddFact(FactType.XPosition, 0);
source.AddFact(FactType.XPosition, 0);
this.source = source;
}
Execute();
}
public override string Handle(IFamilyMember source, IFamilyMember target)
{
if (target.GetFactValue <int>(FactType.YPosition) == 1 && !target.HasFact(FactType.Ancestor))
{
return(target.Gender == Gender.Female ? RelationshipType.Niece.ToString() : RelationshipType.Nephew.ToString());
}
else
{
return(successor.Handle(source, target));
}
}
public override string Handle(IFamilyMember source, IFamilyMember target)
{
if (target.GetFactValue <int>(FactType.YPosition) == -1 && target.HasFact(FactType.Ancestor))
{
return(RelationshipType.Parent.ToString());
}
else
{
return(successor.Handle(source, target));
}
}
public override string Handle(IFamilyMember source, IFamilyMember target)
{
if (target.GetFactValue <int>(FactType.YPosition) < -1 && !target.HasFact(FactType.Ancestor))
{
return(string.Format("{0}{1}",
GetGreatness(target.GetFactValue <int>(FactType.YPosition)),
target.Gender == Gender.Female ? RelationshipType.Aunt.ToString() : RelationshipType.Uncle.ToString()));
}
else
{
return(successor.Handle(source, target));
}
}
public override string Handle(IFamilyMember source, IFamilyMember target)
{
if (target.GetFactValue <int>(FactType.YPosition) > 1 && target.HasFact(FactType.Ancestor))
{
return(string.Format("{0}{1}",
GetGreatness(target.GetFactValue <int>(FactType.YPosition)),
RelationshipType.Grandchild));
}
else
{
return(successor.Handle(source, target));
}
}
private void Above(IChildBearingBase n, int x, int y)
{
// MarkedChildBearingBases.Add(n);
if (n is IParentship)
{
IFamilyMember nextParent = ((IParentship)n).Partner1;
//set relative position
nextParent.AddFact(FactType.XPosition, x);
nextParent.AddFact(FactType.YPosition, y);
nextParent.AddFact(FactType.Ancestor, true);
MarkedMembers.Add(nextParent);
//ensure that we recurse over non-inlaw partner
if (n is IPartnership)
{
var partnership = n as IPartnership;
var otherPartner = partnership.OtherPartner(nextParent);
//set relative position
otherPartner.AddFact(FactType.XPosition, x);
otherPartner.AddFact(FactType.YPosition, y);
otherPartner.AddFact(FactType.Ancestor, true);
MarkedMembers.Add(otherPartner);
if (nextParent.HasFact(FactType.InLaw))
{
nextParent = otherPartner;
}
}
//recurse through nextParent parentships/partnerships
foreach (IChildBearingBase p in nextParent)
{
if (!MarkedChildBearingBases.Contains(p))
{
Below(p, x, y + 1, y);
}
}
//move up
if (!MarkedChildBearingBases.Contains(nextParent.Parents))
{
Above(nextParent.Parents, x, y - 1);
}
}
}
public IPartnership AddPartnership(IFamilyMember partner1, IFamilyMember partner2, bool isDivorced = false)
{
var p1Exists = MemberExists(partner1);
var p2Exists = MemberExists(partner2);
if (!p1Exists || !p2Exists)
{
throw new NotInFamilyTreeException(!p1Exists ? partner1 : partner2);
}
var partnership = FamilyTreeFactory.CreatePartnership(partner1, partner2, isDivorced);
IFamilyMember blood = null,
inlaw = null;
inlaw = partner1.HasFact(FactType.InLaw) ? partner1 : partner2;
blood = partnership.OtherPartner(inlaw);
inlaw.AddFact(FactType.Depth, blood.Facts[FactType.Depth].Value);
AddPartnership(partnership);
return(partnership);
}