public override bool HasCommonRoot(FileLocator other)
{
LocalFileLocator otherLocal = other as LocalFileLocator;
if (otherLocal == null)
{
return(false);
}
// If the paths have drive specifiers, then common root depends on them having a common
// drive letter.
string otherDir = otherLocal._dir;
if (otherDir.Length >= 2 && _dir.Length >= 2)
{
if (otherDir[1] == ':' && _dir[1] == ':')
{
return(Char.ToUpperInvariant(otherDir[0]) == Char.ToUpperInvariant(_dir[0]));
}
}
return(true);
}
/// <summary>
/// Opens the specified file.
/// </summary>
/// <param name="path">The full path of the file to open.</param>
/// <param name="mode">The file mode for the created stream.</param>
/// <param name="access">The access permissions for the created stream.</param>
/// <returns>The new stream.</returns>
public override SparseStream OpenFile(string path, FileMode mode, FileAccess access)
{
if (_readOnly && access != FileAccess.Read)
{
throw new UnauthorizedAccessException();
}
if (path.StartsWith(@"\", StringComparison.OrdinalIgnoreCase))
{
path = path.Substring(1);
}
FileShare fileShare = FileShare.None;
if (access == FileAccess.Read)
{
fileShare = FileShare.Read;
}
var locator = new LocalFileLocator(BasePath);
return(SparseStream.FromStream(locator.Open(path, mode, access, fileShare),
Ownership.Dispose));
}
