Source code for openstack_dashboard.contrib.sahara.content.data_processing.clusters.tables
# 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 logging
from django.http import Http404 # noqa
from django.template.loader import render_to_string
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ungettext_lazy
from horizon import messages
from horizon import tables
from horizon.tables import base as tables_base
from openstack_dashboard.contrib.sahara.api import sahara as saharaclient
from saharaclient.api import base as api_base
LOG = logging.getLogger(__name__)
[docs]class ClustersFilterAction(tables.FilterAction):
filter_type = "server"
filter_choices = (('name', _("Name"), True),
('status', _("Status"), True))
[docs]class ClusterGuide(tables.LinkAction):
name = "cluster_guide"
verbose_name = _("Cluster Creation Guide")
url = "horizon:project:data_processing.wizard:cluster_guide"
[docs]class CreateCluster(tables.LinkAction):
name = "create"
verbose_name = _("Launch Cluster")
url = "horizon:project:data_processing.clusters:create-cluster"
classes = ("ajax-modal",)
icon = "plus"
[docs]class ScaleCluster(tables.LinkAction):
name = "scale"
verbose_name = _("Scale Cluster")
url = "horizon:project:data_processing.clusters:scale"
classes = ("ajax-modal", "btn-edit")
[docs] def allowed(self, request, cluster=None):
return cluster.status == "Active"
[docs]class DeleteCluster(tables.DeleteAction):
@staticmethod
[docs] def action_present(count):
return ungettext_lazy(
u"Delete Cluster",
u"Delete Clusters",
count
)
@staticmethod
[docs] def action_past(count):
return ungettext_lazy(
u"Deleted Cluster",
u"Deleted Clusters",
count
)
[docs] def delete(self, request, obj_id):
saharaclient.cluster_delete(request, obj_id)
[docs]class UpdateRow(tables.Row):
ajax = True
[docs] def get_data(self, request, instance_id):
try:
return saharaclient.cluster_get(request, instance_id)
except api_base.APIException as e:
if e.error_code == 404:
raise Http404
else:
messages.error(request,
_("Unable to update row"))
[docs]def get_instances_count(cluster):
return sum([len(ng["instances"])
for ng in cluster.node_groups])
[docs]class RichErrorCell(tables_base.Cell):
@property
[docs] def status(self):
# The error cell values becomes quite complex and cannot be handled
# correctly with STATUS_CHOICES. Handling that explicitly.
status = self.datum.status.lower()
if status == "error":
return False
elif status == "active":
return True
return None
[docs]def get_rich_status_info(cluster):
return {
"status": cluster.status,
"status_description": cluster.status_description
}
[docs]def rich_status_filter(status_dict):
# Render the status "as is" if no description is provided.
if not status_dict["status_description"]:
return status_dict["status"]
# Error is rendered with a template containing an error description.
return render_to_string(
"project/data_processing.clusters/_rich_status.html", status_dict)
[docs]class ClustersTable(tables.DataTable):
name = tables.Column("name",
verbose_name=_("Name"),
link=("horizon:project:data_processing."
"clusters:details"))
plugin = tables.Column("plugin_name",
verbose_name=_("Plugin"))
version = tables.Column("hadoop_version",
verbose_name=_("Version"))
# Status field need the whole cluster object to build the rich status.
status = tables.Column(get_rich_status_info,
verbose_name=_("Status"),
status=True,
filters=(rich_status_filter,))
instances_count = tables.Column(get_instances_count,
verbose_name=_("Instances Count"))