public void Add(IPatriciaTreeItem item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
this._items.Add(item);
this.AddNode(this._root, item);
}
protected Node(int index, string key, int bit, IPatriciaTreeItem data)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (0 > bit)
{
throw new ArgumentOutOfRangeException(nameof(bit));
}
this._index = index;
this._key = key;
this._bit = bit;
this._item = data;
}
private void AddNode(PatriciaTree.Node node, IPatriciaTreeItem item)
{
if (node == null)
{
this._root = (PatriciaTree.Node) new PatriciaTree.Leaf(this._nodes.Count, item);
this._nodes.Add((PatriciaTree.INode) this._root);
}
else
{
int start = node.Parent == null ? 0 : node.Parent.Bit;
if (node is PatriciaTree.BranchNode)
{
int bit = PatriciaTree.BitHelper.CompareBit(node.Key, item.Key, start, node.Bit);
if (0 <= bit)
{
PatriciaTree.Leaf leaf = new PatriciaTree.Leaf(this._nodes.Count, item);
this._nodes.Add((PatriciaTree.INode)leaf);
this.Branch(node, (PatriciaTree.Node)leaf, bit);
}
else
{
this.AddNode(PatriciaTree.BitHelper.GetBit(item.Key, node.Bit) ? node.Right : node.Left, item);
}
}
else
{
if (!(node is PatriciaTree.Leaf))
{
throw new Exception("invalid node type.");
}
int bit = PatriciaTree.BitHelper.CompareBit(node.Key, item.Key, start);
if (0 >= bit)
{
throw new ArgumentException(nameof(item));
}
PatriciaTree.Leaf leaf = new PatriciaTree.Leaf(this._nodes.Count, item);
this._nodes.Add((PatriciaTree.INode)leaf);
this.Branch(node, (PatriciaTree.Node)leaf, bit);
}
}
}
public bool Remove(IPatriciaTreeItem item)
{
return(this.Remove(item.Key));
}
public Leaf(int index, IPatriciaTreeItem item)
: base(index, item.Key, PatriciaTree.BitHelper.GetBitCount(item.Key), item)
{
}