horizon/openstack_dashboard/usage/views.py
Akihiro Motoki 788388c486 usage: split out the limit related logic into ProjectUsageView
Previously limit information was always retrieved but it is not
used in the admin overview. This commit moves the limit related logic
into a separate class ProjectUsageView.

testing of usage.views is covered by individual panel tests,
so UTs for panels which uses UsageView rather than the new
ProjectUsageView need to be updated in this commit.

blueprint make-quotas-great-again
Change-Id: Id93b66d11e3b0c98d1fbb0454bb43984c2999d92
2018-01-14 04:15:27 +09:00

136 lines
5.3 KiB
Python

# 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 pgettext_lazy
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
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.")
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
def get_content_type(self):
if self.request.GET.get('format', 'html') == 'csv':
return "text/csv"
return "text/html"
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.kwargs['usage'] = self.usage
return self.usage.usage_list
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve usage information.'))
return []
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
try:
context['simple_tenant_usage_enabled'] = \
api.nova.extension_supported('SimpleTenantUsage', self.request)
except Exception:
context['simple_tenant_usage_enabled'] = True
return context
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
class ProjectUsageView(UsageView):
def _get_charts_data(self):
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"),
pgettext_lazy('Label in the limit summary', "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 = pgettext_lazy('Label in the limit summary', 'Used')
if len(t) > 3:
text = t[3]
charts.append({
'type': t[0],
'name': t[2],
'used': self.usage.limits[t[0]],
'max': self.usage.limits[t[1]],
'text': text
})
return charts
def get_context_data(self, **kwargs):
context = super(ProjectUsageView, self).get_context_data(**kwargs)
context['charts'] = self._get_charts_data()
return context
def get_data(self):
data = super(ProjectUsageView, self).get_data()
try:
self.usage.get_limits()
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve limits information.'))
return data