public Item EnsureChildItem(string name, out bool isNew)
{
Drive.ValidateName(name);
var item = GetItem(name);
if (item != null)
{
isNew = false;
return(item);
}
string dir = EnsureDirectory();
item = new Item();
item.FullPath = Path.Combine(dir, Guid.NewGuid().ToString("N") + "." + Id.ToString("N") + "." + name);
using (var file = File.OpenWrite(item.FullPath))
{
// do nothing special
}
isNew = true;
// reread infos
var newItem = new Item();
newItem.FullPath = item.FullPath;
return(newItem);
}
public override bool Rename(string name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
Drive.ValidateName(name);
if (string.Compare(name, Name, StringComparison.OrdinalIgnoreCase) == 0)
{
return(false);
}
if (FullPath == null || !Directory.Exists(FullPath))
{
return(false);
}
Directory.Move(FullPath, Path.Combine(Path.GetDirectoryName(FullPath), Id.ToString("N") + "." + ParentId.ToString("N") + "." + name));
return(true);
}
public Folder EnsureChildFolder(string name)
{
Drive.ValidateName(name);
string dir = EnsureDirectory();
var item = GetItem(name);
if (item != null)
{
if (item is Folder fld)
{
return(fld);
}
throw new InvalidOperationException();
}
var folder = new Folder();
folder.FullPath = Path.Combine(dir, Guid.NewGuid().ToString("N") + "." + Id.ToString("N") + "." + name);
Directory.CreateDirectory(folder.FullPath);
return(folder);
}
public Item GetItem(string name)
{
Drive.ValidateName(name);
string dir = Path.GetDirectoryName(FullPath);
if (!Directory.Exists(dir))
{
return(null);
}
var file = Directory.EnumerateFileSystemEntries(dir, "*." + Id.ToString("N") + "." + name).FirstOrDefault();
if (file == null)
{
return(null);
}
var item = File.Exists(file) ? new Item() : new Folder();
item.FullPath = file;
return(item);
}