def _split_url(self, url):
        """
        see: https://docs.microsoft.com/en-us/azure/storage/common/storage-dotnet-shared-access-signature-part-1  # noqa: E501
        abs://myaccount.blob.core.windows.net/sascontainer/sasblob.txt?sastoken
        """
        match = re.match(r"abs://(.*)\.blob\.core\.windows\.net\/(.*)\/(.*)\?(.*)$", url)
        if not match:
            raise Exception("Invalid azure blob url '{0}'".format(url))
        else:
            params = {
                "account": match.group(1),
                "container": match.group(2),
                "blob": match.group(3),
                "sas_token": urllib.parse.unquote_plus(match.group(4)),
            }
            return params