def splitUri(uri):
    """
    Split Uniform Resource Identifier (URI)

    :param str uri: URI
    :return tuple: filename(str), group(str)
    """
    lst = uri.split('::')
    if len(lst) == 1:
        h5groupname = ''
    else:
        h5groupname = '/'.join(lst[1:])
    return lst[0], '/' + h5groupname
