Synnefo

# Copyright 2013 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 astakos.im.models import Service, Resource

from astakos.im.functions import qh_sync_all_users

from astakos.im.quotas import qh_add_resource_limit, qh_sync_new_resource

import logging

logger = logging.getLogger(__name__)

def add_resource(service, resource, uplimit):

    try:

        s = Service.objects.get(name=service)

    except Service.DoesNotExist:

        raise Exception("Service %s is not registered." % (service))

    name = resource['name']

    try:

        r = Resource.objects.get_for_update(name=name)

        old_uplimit = r.uplimit

    except Resource.DoesNotExist:

        r = Resource()

        old_uplimit = None

    r.uplimit = uplimit

    r.service = service

    for key, value in resource.iteritems():

        setattr(r, key, value)

    r.save()

    if old_uplimit is not None:

        logger.info("Updated resource %s with limit %s." % (name, uplimit))

    else:

        logger.info("Added resource %s with limit %s." % (name, uplimit))

    if old_uplimit is not None:

        diff = uplimit - old_uplimit

        if diff != 0:

            qh_add_resource_limit(r, diff)

    else:

        qh_sync_new_resource(r, uplimit)

def update_resource(name, uplimit):

    r = Resource.objects.get_for_update(name=name)

    old_uplimit = r.uplimit

    r.uplimit = uplimit

    r.save()

    logger.info("Updated resource %s with limit %s." % (name, uplimit))

    diff = uplimit - old_uplimit

    if diff != 0:

        qh_add_resource_limit(r, diff)