apiserving.py 文件源码

def __write_error(self, status_code, error_message=None):
    """Return the HTTP status line and body for a given error code and message.

    Args:
      status_code: HTTP status code to be returned.
      error_message: Error message to be returned.

    Returns:
      Tuple (http_status, body):
        http_status: HTTP status line, e.g. 200 OK.
        body: Body of the HTTP request.
    """
    if error_message is None:
      error_message = httplib.responses[status_code]
    status = '%d %s' % (status_code, httplib.responses[status_code])
    message = EndpointsErrorMessage(
        state=EndpointsErrorMessage.State.APPLICATION_ERROR,
        error_message=error_message)
    return status, self.__PROTOJSON.encode_message(message)