horizon/openstack_dashboard/usage/base.py

195 lines
7.2 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.
import datetime
from django.conf import settings
from django.utils import timezone
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from openstack_dashboard import api
from openstack_dashboard.usage import quotas
class BaseUsage(object):
show_deleted = False
def __init__(self, request, project_id=None):
self.project_id = project_id or request.user.tenant_id
self.request = request
self.summary = {}
self.usage_list = []
@property
def today(self):
return timezone.now()
@property
def first_day(self):
days_range = settings.OVERVIEW_DAYS_RANGE
if days_range:
return self.today.date() - datetime.timedelta(days=days_range)
else:
return datetime.date(self.today.year, self.today.month, 1)
@staticmethod
def get_start(year, month, day):
start = datetime.datetime(year, month, day, 0, 0, 0)
return timezone.make_aware(start, timezone.utc)
@staticmethod
def get_end(year, month, day):
end = datetime.datetime(year, month, day, 23, 59, 59)
return timezone.make_aware(end, timezone.utc)
def get_instances(self):
instance_list = []
for u in self.usage_list:
instance_list.extend(u.server_usages)
return instance_list
def get_date_range(self):
if not hasattr(self, "start") or not hasattr(self, "end"):
args_start = (self.first_day.year, self.first_day.month,
self.first_day.day)
args_end = (self.today.year, self.today.month, self.today.day)
form = self.get_form()
if form.is_valid():
start = form.cleaned_data['start']
end = form.cleaned_data['end']
args_start = (start.year,
start.month,
start.day)
args_end = (end.year,
end.month,
end.day)
elif form.is_bound:
messages.error(self.request,
_("Invalid date format: "
"Using today as default."))
self.start = self.get_start(*args_start)
self.end = self.get_end(*args_end)
return self.start, self.end
def init_form(self):
self.start = self.first_day
self.end = self.today.date()
return self.start, self.end
def get_form(self):
if not hasattr(self, 'form'):
req = self.request
start = req.GET.get('start', req.session.get('usage_start'))
end = req.GET.get('end', req.session.get('usage_end'))
if start and end:
# bound form
self.form = forms.DateForm({'start': start, 'end': end})
else:
# non-bound form
init = self.init_form()
start = init[0].isoformat()
end = init[1].isoformat()
self.form = forms.DateForm(initial={'start': start,
'end': end})
req.session['usage_start'] = start
req.session['usage_end'] = end
return self.form
def get_usage_list(self, start, end):
return []
def summarize(self, start, end):
if not api.nova.extension_supported('SimpleTenantUsage', self.request):
return
if start <= end and start <= self.today:
# The API can't handle timezone aware datetime, so convert back
# to naive UTC just for this last step.
start = timezone.make_naive(start, timezone.utc)
end = timezone.make_naive(end, timezone.utc)
try:
self.usage_list = self.get_usage_list(start, end)
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve usage information.'))
elif end < start:
messages.error(self.request,
_("Invalid time period. The end date should be "
"more recent than the start date."))
elif start > self.today:
messages.error(self.request,
_("Invalid time period. You are requesting "
"data from the future which may not exist."))
for project_usage in self.usage_list:
project_summary = project_usage.get_summary()
for key, value in project_summary.items():
self.summary.setdefault(key, 0)
self.summary[key] += value
def csv_link(self):
form = self.get_form()
data = {}
if hasattr(form, "cleaned_data"):
data = form.cleaned_data
if not ('start' in data and 'end' in data):
data = {"start": self.today.date(), "end": self.today.date()}
return "?start=%s&end=%s&format=csv" % (data['start'],
data['end'])
class GlobalUsage(BaseUsage):
show_deleted = True
def get_usage_list(self, start, end):
return api.nova.usage_list(self.request, start, end)
class ProjectUsage(BaseUsage):
attrs = ('memory_mb', 'vcpus', 'uptime',
'hours', 'local_gb')
def __init__(self, request, project_id=None):
super(ProjectUsage, self).__init__(request, project_id)
self.limits = {}
self.quotas = {}
def get_usage_list(self, start, end):
show_deleted = self.request.GET.get('show_deleted',
self.show_deleted)
instances = []
deleted_instances = []
usage = api.nova.usage_get(self.request, self.project_id, start, end)
# Attribute may not exist if there are no instances
if hasattr(usage, 'server_usages'):
now = self.today
for server_usage in usage.server_usages:
# This is a way to phrase uptime in a way that is compatible
# with the 'timesince' filter. (Use of local time intentional.)
server_uptime = server_usage['uptime']
total_uptime = now - datetime.timedelta(seconds=server_uptime)
server_usage['uptime_at'] = total_uptime
if server_usage['ended_at'] and not show_deleted:
deleted_instances.append(server_usage)
else:
instances.append(server_usage)
usage.server_usages = instances
return (usage,)
def get_limits(self):
self.limits = quotas.tenant_quota_usages(self.request)