# 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.
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import tables
from openstack_dashboard import api
from openstack_dashboard.usage import base
[docs]class UsageView(tables.DataTableView):
usage_class = None
show_deleted = True
csv_template_name = None
page_title = _("Overview")
def __init__(self, *args, **kwargs):
super(UsageView, self).__init__(*args, **kwargs)
if not issubclass(self.usage_class, base.BaseUsage):
raise AttributeError("You must specify a usage_class attribute "
"which is a subclass of BaseUsage.")
[docs] def get_template_names(self):
if self.request.GET.get('format', 'html') == 'csv':
return (self.csv_template_name or
".".join((self.template_name.rsplit('.', 1)[0], 'csv')))
return self.template_name
[docs] def get_content_type(self):
if self.request.GET.get('format', 'html') == 'csv':
return "text/csv"
return "text/html"
[docs] def get_data(self):
try:
project_id = self.kwargs.get('project_id',
self.request.user.tenant_id)
self.usage = self.usage_class(self.request, project_id)
self.usage.summarize(*self.usage.get_date_range())
self.usage.get_limits()
self.kwargs['usage'] = self.usage
return self.usage.usage_list
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve usage information.'))
return []
[docs] def get_context_data(self, **kwargs):
context = super(UsageView, self).get_context_data(**kwargs)
context['table'].kwargs['usage'] = self.usage
context['form'] = self.usage.form
context['usage'] = self.usage
context['charts'] = []
# (Used key, Max key, Human Readable Name, text to display when
# describing the quota by default it is 'Used')
types = [("totalInstancesUsed", "maxTotalInstances", _("Instances")),
("totalCoresUsed", "maxTotalCores", _("VCPUs")),
("totalRAMUsed", "maxTotalRAMSize", _("RAM")),
("totalFloatingIpsUsed", "maxTotalFloatingIps",
_("Floating IPs"), _("Allocated")),
("totalSecurityGroupsUsed", "maxSecurityGroups",
_("Security Groups"))]
# Check for volume usage
if 'totalVolumesUsed' in self.usage.limits and self.usage.limits[
'totalVolumesUsed'] >= 0:
types.append(("totalVolumesUsed", "maxTotalVolumes",
_("Volumes")))
types.append(("totalGigabytesUsed", "maxTotalVolumeGigabytes",
_("Volume Storage")))
for t in types:
if t[0] in self.usage.limits and t[1] in self.usage.limits:
text = False
if len(t) > 3:
text = t[3]
context['charts'].append({
'type': t[0],
'name': t[2],
'used': self.usage.limits[t[0]],
'max': self.usage.limits[t[1]],
'text': text
})
try:
context['simple_tenant_usage_enabled'] = \
api.nova.extension_supported('SimpleTenantUsage', self.request)
except Exception:
context['simple_tenant_usage_enabled'] = True
return context
[docs] def render_to_response(self, context, **response_kwargs):
if self.request.GET.get('format', 'html') == 'csv':
render_class = self.csv_response_class
response_kwargs.setdefault("filename", "usage.csv")
else:
render_class = self.response_class
context = self.render_context_with_title(context)
resp = render_class(request=self.request,
template=self.get_template_names(),
context=context,
content_type=self.get_content_type(),
**response_kwargs)
return resp