Synnefo

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from optparse import make_option

from django.core.management.base import BaseCommand, CommandError

from django.db.utils import IntegrityError

from django.utils import simplejson as json

from synnefo.lib.db.transaction import commit_on_success_strict

from astakos.im.resources import add_resources

class Command(BaseCommand):

    args = "<service> <resource> <desc> <unit>"

    help = "Import resources"

    option_list = BaseCommand.option_list + (

        make_option('--json',

                    dest='json',

                    metavar='<json.file>',

                    help="Load resource info from a json file"),

        make_option('--conf',

                    dest='conf',

                    metavar='<conf.json>',

                    help="Limit configuration file"),

    )

    @commit_on_success_strict()

    def handle(self, *args, **options):

        conf_file = options['conf']

        if not conf_file:

            m = "Please provide a configuation file."

            raise CommandError(m)

        with open(conf_file) as file_data:

            config = json.load(file_data)

        json_file = options['json']

        if json_file:

            with open(json_file) as file_data:

                data = json.load(file_data)

            service = data.get('service')

            resources = data.get('resources')

            if service is None or resources is None:

                m = "JSON file should contain service and resource data."

                raise CommandError(m)

            add_resources(service, resources, config)