# 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.core.urlresolvers import reverse
from django.core.urlresolvers import reverse_lazy
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import tabs
from horizon.utils import memoized
from horizon import workflows
from openstack_dashboard import api
from openstack_dashboard.api import cinder
from openstack_dashboard.usage import quotas
from openstack_dashboard.dashboards.project.volumes \
.cgroups import workflows as vol_cgroup_workflows
from openstack_dashboard.dashboards.project.volumes \
.cgroups import forms as vol_cgroup_forms
from openstack_dashboard.dashboards.project.volumes \
.cgroups import tables as vol_cgroup_tables
from openstack_dashboard.dashboards.project.volumes \
.cgroups import tabs as vol_cgroup_tabs
CGROUP_INFO_FIELDS = ("name",
"description")
INDEX_URL = "horizon:project:volumes:index"
[docs]class CreateView(workflows.WorkflowView):
workflow_class = vol_cgroup_workflows.CreateCGroupWorkflow
template_name = 'project/volumes/cgroups/create.html'
page_title = _("Create Volume Consistency Group")
[docs]class UpdateView(forms.ModalFormView):
template_name = 'project/volumes/cgroups/update.html'
modal_header = _("Edit Consistency Group")
form_class = vol_cgroup_forms.UpdateForm
success_url = reverse_lazy('horizon:project:volumes:index')
submit_url = "horizon:project:volumes:cgroups:update"
submit_label = _("Submit")
page_title = modal_header
[docs] def get_initial(self):
cgroup = self.get_object()
return {'cgroup_id': self.kwargs["cgroup_id"],
'name': cgroup.name,
'description': cgroup.description}
[docs] def get_context_data(self, **kwargs):
context = super(UpdateView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs['cgroup_id']
args = (self.kwargs['cgroup_id'],)
context['submit_url'] = reverse(self.submit_url, args=args)
return context
[docs] def get_object(self):
cgroup_id = self.kwargs['cgroup_id']
try:
self._object = cinder.volume_cgroup_get(self.request, cgroup_id)
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency group '
'details.'),
redirect=reverse(INDEX_URL))
return self._object
[docs]class RemoveVolumesView(forms.ModalFormView):
template_name = 'project/volumes/cgroups/remove_vols.html'
modal_header = _("Remove Volumes from Consistency Group")
form_class = vol_cgroup_forms.RemoveVolsForm
success_url = reverse_lazy('horizon:project:volumes:index')
submit_url = "horizon:project:volumes:cgroups:remove_volumes"
submit_label = _("Submit")
page_title = modal_header
[docs] def get_initial(self):
cgroup = self.get_object()
return {'cgroup_id': self.kwargs["cgroup_id"],
'name': cgroup.name}
[docs] def get_context_data(self, **kwargs):
context = super(RemoveVolumesView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs['cgroup_id']
args = (self.kwargs['cgroup_id'],)
context['submit_url'] = reverse(self.submit_url, args=args)
return context
[docs] def get_object(self):
cgroup_id = self.kwargs['cgroup_id']
try:
self._object = cinder.volume_cgroup_get(self.request, cgroup_id)
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency group '
'details.'),
redirect=reverse(INDEX_URL))
return self._object
[docs]class DeleteView(forms.ModalFormView):
template_name = 'project/volumes/cgroups/delete.html'
modal_header = _("Delete Consistency Group")
form_class = vol_cgroup_forms.DeleteForm
success_url = reverse_lazy('horizon:project:volumes:index')
submit_url = "horizon:project:volumes:cgroups:delete"
submit_label = modal_header
page_title = modal_header
[docs] def get_initial(self):
cgroup = self.get_object()
return {'cgroup_id': self.kwargs["cgroup_id"],
'name': cgroup.name}
[docs] def get_context_data(self, **kwargs):
context = super(DeleteView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs['cgroup_id']
args = (self.kwargs['cgroup_id'],)
context['submit_url'] = reverse(self.submit_url, args=args)
return context
[docs] def get_object(self):
cgroup_id = self.kwargs['cgroup_id']
try:
self._object = cinder.volume_cgroup_get(self.request, cgroup_id)
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency group '
'details.'),
redirect=reverse(INDEX_URL))
return self._object
[docs]class ManageView(workflows.WorkflowView):
workflow_class = vol_cgroup_workflows.UpdateCGroupWorkflow
[docs] def get_context_data(self, **kwargs):
context = super(ManageView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs["cgroup_id"]
return context
def _get_object(self, *args, **kwargs):
cgroup_id = self.kwargs['cgroup_id']
try:
cgroup = cinder.volume_cgroup_get(self.request, cgroup_id)
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency group '
'details.'),
redirect=reverse(INDEX_URL))
return cgroup
[docs] def get_initial(self):
cgroup = self._get_object()
return {'cgroup_id': cgroup.id,
'name': cgroup.name,
'description': cgroup.description,
'vtypes': getattr(cgroup, "volume_types")}
[docs]class CreateSnapshotView(forms.ModalFormView):
form_class = vol_cgroup_forms.CreateSnapshotForm
modal_header = _("Create Consistency Group Snapshot")
template_name = 'project/volumes/cgroups/create_snapshot.html'
submit_label = _("Create Snapshot")
submit_url = "horizon:project:volumes:cgroups:create_snapshot"
success_url = reverse_lazy('horizon:project:volumes:cg_snapshots_tab')
page_title = modal_header
[docs] def get_context_data(self, **kwargs):
context = super(CreateSnapshotView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs['cgroup_id']
args = (self.kwargs['cgroup_id'],)
context['submit_url'] = reverse(self.submit_url, args=args)
try:
# get number of snapshots we will be creating
search_opts = {'consistencygroup_id': context['cgroup_id']}
volumes = api.cinder.volume_list(self.request,
search_opts=search_opts)
num_volumes = len(volumes)
usages = quotas.tenant_limit_usages(self.request)
if usages['snapshotsUsed'] + num_volumes > \
usages['maxTotalSnapshots']:
raise ValueError(_('Unable to create snapshots due to '
'exceeding snapshot quota limit.'))
else:
usages['numRequestedItems'] = num_volumes
context['usages'] = usages
except ValueError as e:
exceptions.handle(self.request, e.message)
return None
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency '
'group information.'))
return context
[docs] def get_initial(self):
return {'cgroup_id': self.kwargs["cgroup_id"]}
[docs]class CloneCGroupView(forms.ModalFormView):
form_class = vol_cgroup_forms.CloneCGroupForm
modal_header = _("Clone Consistency Group")
template_name = 'project/volumes/cgroups/clone_cgroup.html'
submit_label = _("Clone Consistency Group")
submit_url = "horizon:project:volumes:cgroups:clone_cgroup"
success_url = reverse_lazy('horizon:project:volumes:cgroups_tab')
page_title = modal_header
[docs] def get_context_data(self, **kwargs):
context = super(CloneCGroupView, self).get_context_data(**kwargs)
context['cgroup_id'] = self.kwargs['cgroup_id']
args = (self.kwargs['cgroup_id'],)
context['submit_url'] = reverse(self.submit_url, args=args)
try:
# get number of volumes we will be creating
cgroup_id = context['cgroup_id']
search_opts = {'consistencygroup_id': cgroup_id}
volumes = api.cinder.volume_list(self.request,
search_opts=search_opts)
num_volumes = len(volumes)
usages = quotas.tenant_limit_usages(self.request)
if usages['volumesUsed'] + num_volumes > \
usages['maxTotalVolumes']:
raise ValueError(_('Unable to create consistency group due to '
'exceeding volume quota limit.'))
else:
usages['numRequestedItems'] = num_volumes
context['usages'] = usages
except ValueError as e:
exceptions.handle(self.request, e.message)
return None
except Exception:
exceptions.handle(self.request,
_('Unable to retrieve consistency '
'group information.'))
return context
[docs] def get_initial(self):
return {'cgroup_id': self.kwargs["cgroup_id"]}
[docs]class DetailView(tabs.TabView):
tab_group_class = vol_cgroup_tabs.CGroupsDetailTabs
template_name = 'horizon/common/_detail.html'
page_title = "{{ cgroup.name|default:cgroup.id }}"
[docs] def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
cgroup = self.get_data()
table = vol_cgroup_tables.VolumeCGroupsTable(self.request)
context["cgroup"] = cgroup
context["url"] = self.get_redirect_url()
context["actions"] = table.render_row_actions(cgroup)
return context
@memoized.memoized_method
[docs] def get_data(self):
try:
cgroup_id = self.kwargs['cgroup_id']
cgroup = api.cinder.volume_cgroup_get(self.request,
cgroup_id)
cgroup.volume_type_names = []
for vol_type_id in cgroup.volume_types:
vol_type = api.cinder.volume_type_get(self.request,
vol_type_id)
cgroup.volume_type_names.append(vol_type.name)
cgroup.volume_names = []
search_opts = {'consistencygroup_id': cgroup_id}
volumes = api.cinder.volume_list(self.request,
search_opts=search_opts)
for volume in volumes:
cgroup.volume_names.append(volume.name)
except Exception:
redirect = self.get_redirect_url()
exceptions.handle(self.request,
_('Unable to retrieve consistency group '
'details.'),
redirect=redirect)
return cgroup
@staticmethod
[docs] def get_redirect_url():
return reverse('horizon:project:volumes:index')
[docs] def get_tabs(self, request, *args, **kwargs):
cgroup = self.get_data()
return self.tab_group_class(request, cgroup=cgroup, **kwargs)