Synnefo

# Copyright 2012 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

#

# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

# POSSIBILITY OF SUCH DAMAGE.

#

# The views and conclusions contained in the software and

# documentation are those of the authors and should not be

# interpreted as representing official policies, either expressed

# or implied, of GRNET S.A.

from itertools import product

from optparse import make_option

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

from synnefo.db.models import Flavor

class Command(BaseCommand):

    output_transaction = True

    option_list = BaseCommand.option_list + (

        make_option("-n", "--dry-run", dest="dry_run", action="store_true"),

    )

    args = "<cpu>[,<cpu>,...] " \

           "<ram>[,<ram>,...] " \

           "<disk>[,<disk>,...] " \

           "<disk template>[,<disk template>,...]"

    help = "Create one or more flavors.\n\nThe flavors that will be created"\

           " are those belonging to the cartesian product of the arguments"

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

        if len(args) != 4:

            raise CommandError("Invalid number of arguments")

        cpus = args[0].split(',')

        rams = args[1].split(',')

        disks = args[2].split(',')

        templates = args[3].split(',')

        flavors = []

        for cpu, ram, disk, template in product(cpus, rams, disks, templates):

            try:

                flavors.append((int(cpu), int(ram), int(disk), template))

            except ValueError:

                raise CommandError("Invalid values")

        for cpu, ram, disk, template in flavors:

            if options["dry_run"]:

                flavor = Flavor(cpu=cpu, ram=ram, disk=disk,

                                disk_template=template)

                self.stdout.write("Creating flavor '%s'\n" % (flavor.name,))

            else:

                flavor, created = \

                    Flavor.objects.get_or_create(cpu=cpu, ram=ram, disk=disk,

                                                 disk_template=template)

                if created:

                    self.stdout.write("Created flavor '%s'\n" % (flavor.name,))

                else:

                    self.stdout.write("Flavor '%s' already exists\n"

                                      % flavor.name)

                    if flavor.deleted:

                        msg = "Flavor '%s' is marked as deleted. Use"\

                        " 'snf-manage flavor-modify' to restore this flavor\n"\

                        % flavor.name

                        self.stdout.write(msg)