public IEnumerable<FileSystemObject> GetDirectoryListing(FileSystemObject fso)
{
if (fso == null) throw new ArgumentNullException("fso");
if (fso.Type == FsType.File) throw new ArgumentException("Cannot get directory listing from a file");
var driveOrDirName = GetFullname(fso);
if (string.IsNullOrWhiteSpace(driveOrDirName)) throw new ArgumentException("Cannot get directory listing from an empty path");
// First, get the directories
var dirs = from d in Directory.GetDirectories(driveOrDirName)
select new FileSystemObject
{
Fullname = d,
Name = Path.GetFileName(d),
Type = FsType.Directory
};
// Then get the files
dirs = dirs.Concat(from f in Directory.GetFiles(driveOrDirName)
select new FileSystemObject
{
Fullname = f,
Name = Path.GetFileName(f),
Type = FsType.File
});
return dirs;
}
private string GetFullname(FileSystemObject fso)
{
switch (fso.Type)
{
case FsType.Directory:
return fso.Fullname;
case FsType.Drive:
return fso.Name;
default:
throw new NotImplementedException(string.Format("Getting directory listing for FileSystemObject type {0} is not implemented", fso.Type));
}
}
public IEnumerable<FileSystemObject> GetDirectories(FileSystemObject drive)
{
var dirs = _filesystemDao.GetDirectoryListing(drive);
var fsObjects = from d in dirs
select new FileSystemObject
{
Fullname = d.Fullname,
Name = d.Name,
Type = FsType.Directory
};
return fsObjects;
}