266 lines
10 KiB
Python
266 lines
10 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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#
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# 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 logging
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from django.contrib import messages
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from django.core.paginator import EmptyPage
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from django.core.paginator import Paginator
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from django.urls import reverse
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from django.urls import reverse_lazy
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from django.utils.translation import ugettext as _ # noqa
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from django.views.generic import TemplateView
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import six
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from horizon import exceptions
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from horizon import forms
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from horizon import tables
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from horizon.utils import functions as utils
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from horizon import workflows
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from monascaclient import exc
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from monitoring.alarmdefs import constants
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from monitoring.alarmdefs import forms as alarm_forms
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from monitoring.alarmdefs import tables as alarm_tables
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from monitoring.alarmdefs import workflows as alarm_workflows
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from monitoring import api
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from openstack_dashboard import policy
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LOG = logging.getLogger(__name__)
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PREV_PAGE_LIMIT = 100
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class IndexView(tables.DataTableView):
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table_class = alarm_tables.AlarmsTable
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template_name = constants.TEMPLATE_PREFIX + 'alarm.html'
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def get_data(self):
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page_offset = self.request.GET.get('page_offset')
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results = []
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if page_offset is None:
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page_offset = 0
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limit = utils.get_page_size(self.request)
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try:
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results = api.monitor.alarmdef_list(self.request, page_offset, limit)
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paginator = Paginator(results, limit)
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results = paginator.page(1)
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except EmptyPage:
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results = paginator.page(paginator.num_pages)
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except Exception as ex:
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LOG.exception(str(ex))
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messages.error(self.request, _("Could not retrieve alarm definitions"))
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return results
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def get_context_data(self, **kwargs):
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if not policy.check((('monitoring', 'monitoring:monitoring'), ), self.request):
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raise exceptions.NotAuthorized()
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context = super(IndexView, self).get_context_data(**kwargs)
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num_results = 0
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contacts = []
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prev_page_stack = []
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page_offset = self.request.GET.get('page_offset')
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if 'prev_page_stack' in self.request.session:
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prev_page_stack = self.request.session['prev_page_stack']
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if page_offset is None:
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page_offset = 0
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prev_page_stack = []
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else:
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page_offset = int(page_offset)
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limit = utils.get_page_size(self.request)
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try:
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# To judge whether there is next page, get limit + 1
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results = api.monitor.alarmdef_list(self.request, page_offset,
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limit + 1)
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num_results = len(results)
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paginator = Paginator(results, limit)
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contacts = paginator.page(1)
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except EmptyPage:
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contacts = paginator.page(paginator.num_pages)
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except Exception:
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messages.error(self.request, _("Could not retrieve alarm definitions"))
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return context
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context["contacts"] = contacts
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if num_results < limit + 1:
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context["page_offset"] = None
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else:
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context["page_offset"] = page_offset + limit
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if page_offset in prev_page_stack:
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index = prev_page_stack.index(page_offset)
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prev_page_stack = prev_page_stack[0:index]
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prev_page_offset = prev_page_stack[-1] if prev_page_stack else None
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if prev_page_offset is not None:
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context["prev_page_offset"] = prev_page_offset
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if len(prev_page_stack) > PREV_PAGE_LIMIT:
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del prev_page_stack[0]
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prev_page_stack.append(page_offset)
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self.request.session['prev_page_stack'] = prev_page_stack
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return context
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class AlarmCreateView(workflows.WorkflowView):
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workflow_class = alarm_workflows.AlarmDefinitionWorkflow
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def transform_alarm_data(obj):
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obj['match_by'] = ','.join(obj['match_by'])
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return obj
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class AlarmDetailView(TemplateView):
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template_name = constants.TEMPLATE_PREFIX + 'detail.html'
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def get_object(self):
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id = self.kwargs['id']
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try:
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if hasattr(self, "_object"):
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return self._object
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self._object = None
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self._object = api.monitor.alarmdef_get(self.request, id)
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notifications = []
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# Fetch the notification object for each alarm_actions
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all_actions = set(self._object["alarm_actions"] +
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self._object["ok_actions"] +
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self._object["undetermined_actions"])
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for id in all_actions:
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try:
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notification = api.monitor.notification_get(
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self.request,
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id)
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notification['alarm'] = False
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notification['ok'] = False
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notification['undetermined'] = False
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notifications.append(notification)
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# except exceptions.NOT_FOUND:
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except exc.HttpError:
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msg = _("Notification %s has already been deleted.") % id
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notifications.append({"id": id,
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"name": six.text_type(msg),
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"type": "",
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"address": ""})
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for notification in notifications:
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if notification['id'] in self._object["alarm_actions"]:
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notification['alarm'] = True
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if notification['id'] in self._object["ok_actions"]:
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notification['ok'] = True
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if notification['id'] in self._object["undetermined_actions"]:
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notification['undetermined'] = True
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self._object["notifications"] = notifications
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return self._object
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except Exception:
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redirect = self.get_success_url()
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exceptions.handle(self.request,
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_('Unable to retrieve alarm details.'),
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redirect=redirect)
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return None
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def get_initial(self):
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self.alarm = self.get_object()
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return transform_alarm_data(self.alarm)
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def get_context_data(self, **kwargs):
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if not policy.check((('monitoring', 'monitoring:monitoring'), ), self.request):
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raise exceptions.NotAuthorized()
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context = super(AlarmDetailView, self).get_context_data(**kwargs)
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self.get_initial()
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context["alarm"] = self.alarm
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context["cancel_url"] = self.get_success_url()
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return context
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def get_success_url(self):
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return reverse_lazy(constants.URL_PREFIX + 'index')
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class AlarmEditView(forms.ModalFormView):
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form_class = alarm_forms.EditAlarmForm
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template_name = constants.TEMPLATE_PREFIX + 'edit.html'
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def get_object(self):
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id = self.kwargs['id']
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try:
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if hasattr(self, "_object"):
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return self._object
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self._object = None
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self._object = api.monitor.alarmdef_get(self.request, id)
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notifications = []
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# Fetch the notification object for each alarm_actions
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all_actions = set(self._object["alarm_actions"] +
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self._object["ok_actions"] +
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self._object["undetermined_actions"])
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for id in all_actions:
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try:
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notification = api.monitor.notification_get(
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self.request,
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id)
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notification['alarm'] = False
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notification['ok'] = False
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notification['undetermined'] = False
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notifications.append(notification)
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# except exceptions.NOT_FOUND:
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except exc.HttpError:
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msg = _("Notification %s has already been deleted.") % id
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messages.warning(self.request, msg)
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for notification in notifications:
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if notification['id'] in self._object["alarm_actions"]:
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notification['alarm'] = True
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if notification['id'] in self._object["ok_actions"]:
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notification['ok'] = True
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if notification['id'] in self._object["undetermined_actions"]:
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notification['undetermined'] = True
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del self._object["alarm_actions"]
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del self._object["ok_actions"]
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del self._object["undetermined_actions"]
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self._object["notifications"] = notifications
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return self._object
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except Exception:
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redirect = self.get_success_url()
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exceptions.handle(self.request,
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_('Unable to retrieve alarm details.'),
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redirect=redirect)
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return None
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def get_initial(self):
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self.alarm = self.get_object()
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return transform_alarm_data(self.alarm)
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def get_context_data(self, **kwargs):
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if not policy.check((('monitoring', 'monitoring:monitoring'), ), self.request):
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raise exceptions.NotAuthorized()
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context = super(AlarmEditView, self).get_context_data(**kwargs)
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id = self.kwargs['id']
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context["cancel_url"] = self.get_success_url()
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context["action_url"] = reverse(constants.URL_PREFIX + 'alarm_edit',
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args=(id,))
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return context
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def get_success_url(self):
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return reverse_lazy(constants.URL_PREFIX + 'index',
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args=())
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