resource.py 文件源码

def _resource_signal(heat_client, args):
    fields = {'stack_id': args.stack,
              'resource_name': args.resource}
    data = args.data
    data_file = args.data_file
    if data and data_file:
        raise exc.CommandError(_('Should only specify one of data or '
                                 'data-file'))

    if data_file:
        data_url = heat_utils.normalise_file_path_to_url(data_file)
        data = request.urlopen(data_url).read()

    if data:
        try:
            data = jsonutils.loads(data)
        except ValueError as ex:
            raise exc.CommandError(_('Data should be in JSON format: %s') % ex)
        if not isinstance(data, dict):
            raise exc.CommandError(_('Data should be a JSON dict'))

        fields['data'] = data
    try:
        heat_client.resources.signal(**fields)
    except heat_exc.HTTPNotFound:
        raise exc.CommandError(_('Stack %(stack)s or resource %(resource)s '
                                 'not found.') %
                               {'stack': args.stack,
                                'resource': args.resource})