/// <summary>
/// Returns whether the current PathInfo is a valid parent of the child path info
/// passed as argument.
/// </summary>
/// <param name="child">The path info to verify</param>
/// <returns>Whether it is true that the current path info is a parent of child.</returns>
/// <exception cref="NotSupportedException">If this instance of path info and child aren't rooted.</exception>
public bool IsParentOf(PathInfo child)
{
if (Root == string.Empty || child.Root == string.Empty)
{
throw new NotSupportedException("Non-rooted paths are not supported.");
}
var OK = child.FolderAndFiles.StartsWith(FolderAndFiles);
switch (Type)
{
case PathType.Device:
OK &= child.DeviceName.ToLowerInvariant() == DeviceName.ToLowerInvariant();
break;
case PathType.Server:
OK &= child.ServerName.ToLowerInvariant() == ServerName.ToLowerInvariant();
break;
case PathType.IPv4:
OK &= IPAddress.Parse(child.IPv4).Equals(IPAddress.Parse(IPv4));
break;
case PathType.IPv6:
OK &= (IPAddress.Parse(child.IPv6).Equals(IPAddress.Parse(IPv6)));
break;
case PathType.Relative:
throw new InvalidOperationException("Since root isn't empty we should never get relative paths.");
case PathType.Drive:
OK &= DriveLetter.ToLowerInvariant() == child.DriveLetter.ToLowerInvariant();
break;
}
return(OK);
}
