public void Clear()
{
root = null;
current = null;
allNodes.Clear();
nodeCount = 0;
}
public Node CreateNode(int nodeType, string name, Node parent)
{
Node n;
switch (nodeType)
{
case 0:
n = new File(name, parent, this);
CreateNodeIndex(n);
return(n);
case 1:
n = new Floder(name, parent, this);
CreateNodeIndex(n);
return(n);
case 2:
n = new Symlink(name, parent, this);
CreateNodeIndex(n);
return(n);
default:
return(null);
}
}
public void SetRoot(Node root)
{
Floder f = root as Floder;
f.index = 0;
allNodes.Add(f);
this.root = f;
this.current = this.root;
nodeCount++;
}
public Disk(Node root)
{
Floder f = root as Floder;
allNodes = new List <Node>();
f.index = 0;
allNodes.Add(f);
this.root = f;
this.current = this.root;
nodeCount++;
}
void CreateFloder(string[] names, int index, Floder f, int max)
{
if (index > max)
{
return;
}
if (f == null)
{
return;
}
Node n = f.GetChildByName(names[index]);
if (n != null)
{
if (n is Floder childF)
{
index++;
CreateFloder(names, index, childF, max);
}
else if (n is Symlink s)
{
if (s.target.nodeType == 1)
{
Floder tarF = s.target as Floder;
index++;
CreateFloder(names, index, tarF, max);
}
}
else
{
Console.WriteLine("不可在文件下创建目录");
return;
}
}
else
{
Floder ff = CreateNode(1, names[index], f) as Floder;
index++;
CreateFloder(names, index, ff, max);
}
}
/// <summary>
/// 从一个目录获得所有子结点(不包括n)，返回list
/// </summary>
void GetAllNodes(ref List <Node> nodes, Node n)
{
if (n.nodeType != 1)
{
nodes.Add(n);
return;
}
Floder f = n as Floder;
if (f != null)
{
if (f.index != n.index)
{
nodes.Add(f);
}
for (int i = 0; i < f.childs.Count; i++)
{
GetAllNodes(ref nodes, f.childs[i]);
}
}
}
/// <summary>
/// 用namelist找文件夹
/// </summary>
Node FindFloderWithName(Node start, string[] names, bool isFullPath, bool isMatch = false)
{
Floder fo = start as Floder;
if (fo == null)
{
return(null);
}
int tmp = isFullPath ? 1 : 0;
int count = names.Length;
if (count == 1 && isFullPath) //绝对路径只有一个结点
{
return(fo);
}
Node n = fo.GetChildByName(names[tmp], isMatch);
if (names.Length > tmp + 1)
{
for (int i = tmp + 1; i < names.Length; i++)
{
if (i == names.Length - 1) //最后一个结点
{
if (n != null)
{
if (n is Floder f) //找到文件夹继续找 如果是最后一个结点了，返回这个文件或者文件夹
{
n = f.GetChildByName(names[i], isMatch);
return(n);
}
else if (n is Symlink s && s.target != null) //找到符号链接 看目标是不是文件夹
{
n = SymlinkFinalReturnNode(s);
if (n is Floder f1)
{
n = f1.GetChildByName(names[i], isMatch);
return(n);
}
}
}
else
{
return(null);
}
}
else //不是最后一个
{
if (n != null)
{
if (n is Floder f) //找到文件夹继续找
{
n = f.GetChildByName(names[i], isMatch);
}
else //找到个文件，不正常情况，路径错误
{
Console.WriteLine("路径不存在");
return(null);
}
}
else //没找到
{
return(null);
}
}
}
}
else //如果只有1个结点
{
if (n != null)
{
return(n); //如果是最后一个结点了，返回这个文件或者文件夹
}
else
{
return(null);
}
}
return(null);
}
