Source code for openstack_dashboard.usage.views

# 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({ '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

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