protected void OnVisitingNode(VisitingNodeEventArgs e)
{
var handler = this.VisitingNode;
if (handler != null)
{
handler(this, e);
}
}
private void OnVisitingNode(VisitingNodeEventArgs e)
{
var handler = this.VisitingNode;
if (handler != null)
{
logger.Trace("Before firing VisitingNode event.");
handler(this, e);
logger.Trace("VisitingNode event fired.");
}
}
public override INode Traverse(INode root)
{
VisitedNodeCollection visited = new VisitedNodeCollection();
Queue <INode> nodeQueue = new Queue <INode>();
nodeQueue.Enqueue(root);
visited.Add(root);
INode curr = null;
VisitingNodeEventArgs e;
while (nodeQueue.Any())
{
curr = nodeQueue.Dequeue();
this.OnVisitingNode(e = new VisitingNodeEventArgs(curr));
if (e.Found)
{
// if we were looking for this particular node, return it!
return(curr);
}
this.OnVisitedNode(curr);
foreach (var adjacentNode in curr.GetAdjacentNodes())
{
if (visited.NotContains(adjacentNode))
{
visited.Add(adjacentNode);
nodeQueue.Enqueue(adjacentNode);
}
}
}
return(null);
}
private void HandleVisitingNodeInComponent(object sender, VisitingNodeEventArgs e)
{
OnVisitingNode(e);
}
