private static List <IReadOnlyRelation> GetAgentRelations(IReadOnlyNode agent, IReadOnlyNode parentAgent)
{
if (agent == parentAgent)
{
return(new List <IReadOnlyRelation>());
}
if (agent.FromIsA().Any(currentNode => currentNode == parentAgent))
{
return(new List <IReadOnlyRelation> {
agent.FromRelations.Where(x => x.Name == Relations.IsA).First(x => x.To == parentAgent)
});
}
foreach (var node in agent.FromIsA())
{
var relations = GetAgentRelations(node, parentAgent);
if (relations.Count <= 0)
{
continue;
}
relations.Add(node.FromRelations.Where(x => x.Name == Relations.IsA).FirstOrDefault(x => x.To == agent));
return(relations);
}
return(new List <IReadOnlyRelation>());
}
private static IReadOnlyNode GetParentAgent(IReadOnlyNode agent)
{
if (agent.Name == EmptyOntologyNode.Name)
{
return(agent);
}
var agents = new Queue <IReadOnlyNode>();
agents.Enqueue(agent);
while (agents.Count > 0)
{
agent = agents.Dequeue();
if (agent.ToRelations.Any(x => x.Name == Relations.Agent))
{
return(agent);
}
foreach (var node in agent.FromIsA())
{
agents.Enqueue(node);
}
}
throw new ArgumentException();
}
private static List <IReadOnlyRelation> GetRelations(IReadOnlyNode node, IReadOnlyNode nodeToFind, string relation, bool isFrom)
{
if (node.From(relation).Any(currentNode => currentNode == nodeToFind))
{
return(new List <IReadOnlyRelation> {
node.FromRelations.First(x => x.To == nodeToFind)
});
}
foreach (var currentNode in isFrom ? node.FromIsA() : node.ToIsA())
{
var relations = GetRelations(currentNode, nodeToFind, relation, isFrom);
if (relations.Count <= 0)
{
continue;
}
var toNode = node.ToRelations.FirstOrDefault(x => x.From == currentNode);
var fromNode = node.FromRelations.FirstOrDefault(x => x.To == currentNode);
relations.Add(isFrom ? fromNode : toNode);
return(relations);
}
return(new List <IReadOnlyRelation>());
}
