# Copyright 2012 NEC Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from django.core.urlresolvers import reverse
from django.core.urlresolvers import reverse_lazy
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ungettext_lazy
from horizon import exceptions
from horizon import tables
from horizon.utils import memoized
from openstack_dashboard import api
from openstack_dashboard.dashboards.project.networks.subnets \
import tables as proj_tables
from openstack_dashboard.dashboards.project.networks.subnets.tabs \
import SubnetsTab as project_tabs_subnets_tab
LOG = logging.getLogger(__name__)
[docs]class DeleteSubnet(proj_tables.SubnetPolicyTargetMixin, tables.DeleteAction):
@staticmethod
[docs] def action_present(count):
return ungettext_lazy(
u"Delete Subnet",
u"Delete Subnets",
count
)
@staticmethod
[docs] def action_past(count):
return ungettext_lazy(
u"Deleted Subnet",
u"Deleted Subnets",
count
)
policy_rules = (("network", "delete_subnet"),)
[docs] def delete(self, request, obj_id):
try:
api.neutron.subnet_delete(request, obj_id)
except Exception:
msg = _('Failed to delete subnet %s') % obj_id
LOG.info(msg)
network_id = self.table.kwargs['network_id']
redirect = reverse('horizon:admin:networks:detail',
args=[network_id])
exceptions.handle(request, msg, redirect=redirect)
[docs]class CreateSubnet(proj_tables.SubnetPolicyTargetMixin, tables.LinkAction):
name = "create"
verbose_name = _("Create Subnet")
url = "horizon:admin:networks:addsubnet"
classes = ("ajax-modal",)
icon = "plus"
policy_rules = (("network", "create_subnet"),)
[docs] def get_link_url(self, datum=None):
network_id = self.table.kwargs['network_id']
return reverse(self.url, args=(network_id,))
[docs]class UpdateSubnet(proj_tables.SubnetPolicyTargetMixin, tables.LinkAction):
name = "update"
verbose_name = _("Edit Subnet")
url = "horizon:admin:networks:editsubnet"
classes = ("ajax-modal",)
icon = "pencil"
policy_rules = (("network", "update_subnet"),)
[docs] def get_link_url(self, subnet):
network_id = self.table.kwargs['network_id']
return reverse(self.url, args=(network_id, subnet.id))
[docs]def subnet_ip_availability(availability):
subnet_availability = availability.get("free_ips")
if subnet_availability:
if subnet_availability > 10000:
return ">10000"
else:
return str(subnet_availability)
else:
return str("Not Available")
[docs]class SubnetsTable(tables.DataTable):
name = tables.WrappingColumn("name_or_id", verbose_name=_("Name"),
link='horizon:admin:networks:subnets:detail')
cidr = tables.Column("cidr", verbose_name=_("CIDR"))
ip_version = tables.Column("ipver_str", verbose_name=_("IP Version"))
gateway_ip = tables.Column("gateway_ip", verbose_name=_("Gateway IP"))
subnet_used_ips = tables.Column("used_ips",
verbose_name=_("Used IPs"))
subnet_free_ips = tables.Column(subnet_ip_availability,
verbose_name=_("Free IPs"))
failure_url = reverse_lazy('horizon:admin:networks:index')
[docs] def get_object_display(self, subnet):
return subnet.id
@memoized.memoized_method
def _get_network(self):
try:
network_id = self.kwargs['network_id']
network = api.neutron.network_get(self.request, network_id)
network.set_id_as_name_if_empty(length=0)
except Exception:
msg = _('Unable to retrieve details for network "%s".') \
% (network_id)
exceptions.handle(self.request, msg, redirect=self.failure_url)
return network
def __init__(self, request, data=None, needs_form_wrapper=None, **kwargs):
super(SubnetsTable, self).__init__(
request, data=data,
needs_form_wrapper=needs_form_wrapper,
**kwargs)
if not api.neutron.is_extension_supported(request,
'network-ip-availability'):
del self.columns['subnet_used_ips']
del self.columns['subnet_free_ips']
[docs]class SubnetsTab(project_tabs_subnets_tab):
table_classes = (SubnetsTable,)
def _get_subnet_availability(self, network_id):
subnet_availabilities_list = []
try:
availability = api.neutron.\
show_network_ip_availability(self.request, network_id)
availabilities = availability.get("network_ip_availability",
{})
subnet_availabilities_list = availabilities.\
get("subnet_ip_availability", [])
except Exception:
msg = _("Unable to retrieve IP availability.")
exceptions.handle(self.request, msg)
return subnet_availabilities_list
def _add_subnet_availability(self, subnet_usage_list, subnets_dict):
try:
for subnet_usage in subnet_usage_list:
subnet_id = subnet_usage.get("subnet_id")
subnet_used_ips = subnet_usage.get("used_ips")
subnet_total_ips = subnet_usage.get("total_ips")
subnet_free_ips = subnet_total_ips - subnet_used_ips
for item in subnets_dict:
id = item.get("id")
if id == subnet_id:
item._apidict.update({"used_ips": subnet_used_ips})
item._apidict.update({"free_ips": subnet_free_ips})
except Exception:
msg = _("Unable to update subnets with availability.")
exceptions.handle(self.request, msg)
return subnets_dict
[docs] def get_subnets_data(self):
try:
subnets = super(SubnetsTab, self).get_subnets_data()
network_id = self.tab_group.kwargs['network_id']
if api.neutron.is_extension_supported(self.request,
'network-ip-availability'):
subnets_list = self._get_subnet_availability(network_id)
subnets = self._add_subnet_availability(subnets_list, subnets)
except Exception:
subnets = []
msg = _('Failed to check if network-ip-availability '
'extension is supported.')
exceptions.handle(self.request, msg)
return subnets