222 lines
8.0 KiB
Python
222 lines
8.0 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import collections
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from django.contrib.humanize.templatetags import humanize as humanize_filters
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from django.utils.translation import pgettext_lazy
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from django.utils.translation import ugettext_lazy as _
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from horizon import exceptions
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from horizon import tables
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from horizon.templatetags import sizeformat
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from openstack_dashboard import api
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from openstack_dashboard.usage import base
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class UsageView(tables.DataTableView):
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usage_class = None
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show_deleted = True
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csv_template_name = None
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page_title = _("Overview")
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def __init__(self, *args, **kwargs):
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super(UsageView, self).__init__(*args, **kwargs)
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if not issubclass(self.usage_class, base.BaseUsage):
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raise AttributeError("You must specify a usage_class attribute "
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"which is a subclass of BaseUsage.")
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def get_template_names(self):
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if self.request.GET.get('format', 'html') == 'csv':
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return (self.csv_template_name or
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".".join((self.template_name.rsplit('.', 1)[0], 'csv')))
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return self.template_name
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def get_content_type(self):
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if self.request.GET.get('format', 'html') == 'csv':
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return "text/csv"
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return "text/html"
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def get_data(self):
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try:
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project_id = self.kwargs.get('project_id',
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self.request.user.tenant_id)
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self.usage = self.usage_class(self.request, project_id)
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self.usage.summarize(*self.usage.get_date_range())
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self.kwargs['usage'] = self.usage
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return self.usage.usage_list
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except Exception:
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exceptions.handle(self.request,
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_('Unable to retrieve usage information.'))
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return []
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def get_context_data(self, **kwargs):
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context = super(UsageView, self).get_context_data(**kwargs)
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context['table'].kwargs['usage'] = self.usage
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context['form'] = self.usage.form
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context['usage'] = self.usage
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try:
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context['simple_tenant_usage_enabled'] = \
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api.nova.extension_supported('SimpleTenantUsage', self.request)
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except Exception:
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context['simple_tenant_usage_enabled'] = True
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return context
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def render_to_response(self, context, **response_kwargs):
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if self.request.GET.get('format', 'html') == 'csv':
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render_class = self.csv_response_class
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response_kwargs.setdefault("filename", "usage.csv")
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else:
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render_class = self.response_class
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context = self.render_context_with_title(context)
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resp = render_class(request=self.request,
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template=self.get_template_names(),
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context=context,
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content_type=self.get_content_type(),
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**response_kwargs)
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return resp
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def _check_network_allowed(request):
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return api.neutron.is_quotas_extension_supported(request)
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ChartDef = collections.namedtuple(
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'ChartDef',
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('quota_key', 'label', 'used_phrase', 'filters'))
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# Each ChartDef should contains the following fields:
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# - quota key:
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# The key must be included in a response of tenant_quota_usages().
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# - Human Readable Name:
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# - text to display when describing the quota.
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# If None is specified, the default value 'Used' will be used.
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# - filters to be applied to the value
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# If None is specified, the default filter 'intcomma' will be applied.
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# if you want to apply no filters, specify an empty tuple or list.
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# - allowed:
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# An optional argument used to determine if the chart section should be
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# displayed. Can be a static value or a function, which is called dynamically
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# with the request as it's first parameter.
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CHART_DEFS = [
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{
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'title': _("Compute"),
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'charts': [
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ChartDef("instances", _("Instances"), None, None),
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ChartDef("cores", _("VCPUs"), None, None),
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ChartDef("ram", _("RAM"), None, (sizeformat.mb_float_format,)),
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],
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},
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{
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'title': _("Volume"),
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'charts': [
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ChartDef("volumes", _("Volumes"), None, None),
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ChartDef("snapshots", _("Volume Snapshots"), None, None),
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ChartDef("gigabytes", _("Volume Storage"), None,
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(sizeformat.diskgbformat,)),
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],
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},
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{
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'title': _("Network"),
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'charts': [
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ChartDef("floatingip", _("Floating IPs"),
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pgettext_lazy('Label in the limit summary', "Allocated"),
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None),
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ChartDef("security_group", _("Security Groups"), None, None),
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ChartDef("security_group_rule", _("Security Group Rules"),
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None, None),
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ChartDef("network", _("Networks"), None, None),
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ChartDef("port", _("Ports"), None, None),
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ChartDef("router", _("Routers"), None, None),
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],
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'allowed': _check_network_allowed,
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},
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]
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def _apply_filters(value, filters):
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if not filters:
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return value
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for f in filters:
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value = f(value)
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return value
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class ProjectUsageView(UsageView):
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def _get_charts_data(self):
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chart_sections = []
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for section in CHART_DEFS:
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if self._check_chart_allowed(section):
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chart_data = self._process_chart_section(section['charts'])
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chart_sections.append({
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'title': section['title'],
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'charts': chart_data
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})
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return chart_sections
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def _check_chart_allowed(self, chart_def):
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result = True
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if 'allowed' in chart_def:
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allowed = chart_def['allowed']
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result = allowed(self.request) if callable(allowed) else allowed
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return result
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def _process_chart_section(self, chart_defs):
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charts = []
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for t in chart_defs:
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if t.quota_key not in self.usage.limits:
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continue
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key = t.quota_key
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used = self.usage.limits[key]['used']
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quota = self.usage.limits[key]['quota']
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text = t.used_phrase
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if text is None:
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text = pgettext_lazy('Label in the limit summary', 'Used')
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filters = t.filters
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if filters is None:
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filters = (humanize_filters.intcomma,)
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used_display = _apply_filters(used, filters)
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# When quota is float('inf'), we don't show quota
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# so filtering is unnecessary.
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quota_display = None
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if quota != float('inf'):
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quota_display = _apply_filters(quota, filters)
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else:
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quota_display = quota
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charts.append({
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'type': key,
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'name': t.label,
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'used': used,
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'quota': quota,
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'used_display': used_display,
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'quota_display': quota_display,
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'text': text
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})
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return charts
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def get_context_data(self, **kwargs):
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context = super(ProjectUsageView, self).get_context_data(**kwargs)
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context['charts'] = self._get_charts_data()
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return context
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def get_data(self):
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data = super(ProjectUsageView, self).get_data()
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try:
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self.usage.get_limits()
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except Exception:
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exceptions.handle(self.request,
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_('Unable to retrieve limits information.'))
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return data
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