/// <summary>
/// Adds a relationship to the list
/// </summary>
/// <param name="r"></param>
public void Add(Relationship r)
{
RelationKey key = r.GetRelationKey();
if (knowledge.ContainsKey(key))
{
bool bNew = true;
//sadly will need to do a for-loop here to prevent duplicates
foreach (Relationship oldrelationship in knowledge[key])
{
if (oldrelationship.Relation == r.Relation
&& oldrelationship.A == r.A
&& oldrelationship.B == r.B
)
{
bNew = false;
}
}
// If the rules already added don't do it again.
//if (knowledge[key].Contains(r)) return; DID NOT WORK (Probably because of the weights being different?)
if (bNew == true)
{
knowledge[key].Add(r);
}
return;
}
else
{
List<Relationship> relationList = new List<Relationship>();
relationList.Add(r);
knowledge.Add(key, relationList);
}
}
private bool CanFireRule(Relationship ifTrue, Relationship[] knowledgePieces)
{
foreach (Relationship r in knowledgePieces)
{
if (r.B == ifTrue.B)
return true;
}
return false;
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
// create a brand new table
// building teh columns based on rules
Relationship temp = new Relationship();
// The commented out line worked in previous version but would not compile here so I had to
// change it, to the following, which I'm not sure if it is correct.
System.Reflection.PropertyInfo[] names = typeof(Relationship).GetProperties (BindingFlags.Public| BindingFlags.Static);
// System.Reflection.PropertyInfo[] names = Reflection.GetPropertyNames(temp);
if (names == null)
{
throw new Exception("Relationship does not have any names!?");
}
DataTable table = new DataTable();
foreach (System.Reflection.PropertyInfo pInfo in names)
{
table.Columns.Add(pInfo.Name, pInfo.PropertyType);
}
dataGridView1.DataSource = table;
FixTableOrder();
}
private void DeduceRule(Relationship relationship,
List<Relationship> potentialNewKnowledge)
{
Relationship aIs = relationship;
//Get the B's
List<Relationship> theBs = knowledge[aIs.GetRelationKey()];
// june 12 2009 - was having trouble with foreach working so I did a normal for
//foreach (Relationship secondRelation in theBs)
for (int i = 0 ; i < theBs.Count; i++)
{
Relationship secondRelation = theBs[i];
// A is B1, B2, B3 ...
string b = secondRelation.B;
RelationKey bRelation = new RelationKey(b, DEDUCED_IS);
if (!knowledge.ContainsKey(bRelation))
{
// do nothing if we don't have any 'deductions' to make
// removed the break beacuse it was messing with looping?
//break;
}
else
{
List<Relationship> theCs = knowledge[bRelation];
foreach (Relationship bIs in theCs)
{
double newWeight = (aIs.Weight + bIs.Weight) /2 ;
int newPriority = Math.Max(aIs.Priority, bIs.Priority);
//Create A is C, if it doesn't exist add it.
Relationship newRule
= new Relationship(aIs.A, DEDUCED_IS, bIs.B
, "", newWeight, newPriority, false);
potentialNewKnowledge.Add(newRule);
}
}
}
}