Source code for openstack_dashboard.contrib.sahara.content.data_processing.clusters.views
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
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# distributed under the License is distributed on an "AS IS" BASIS,
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from datetime import datetime
import json
import logging
from django.http import HttpResponse
from django.utils.translation import ugettext as _
from django.views.generic import base as django_base
import six
from horizon import exceptions
from horizon import tables
from horizon import tabs
from horizon.utils import memoized
from horizon.utils.urlresolvers import reverse # noqa
from horizon import workflows
from openstack_dashboard.contrib.sahara.api import sahara as saharaclient
import openstack_dashboard.contrib.sahara.content.data_processing.clusters. \
tables as c_tables
import openstack_dashboard.contrib.sahara.content.data_processing.clusters. \
tabs as _tabs
import openstack_dashboard.contrib.sahara.content.data_processing.clusters. \
workflows.create as create_flow
import openstack_dashboard.contrib.sahara.content.data_processing.clusters. \
workflows.scale as scale_flow
from saharaclient.api.base import APIException
LOG = logging.getLogger(__name__)
[docs]class ClustersView(tables.DataTableView):
table_class = c_tables.ClustersTable
template_name = 'project/data_processing.clusters/clusters.html'
page_title = _("Clusters")
[docs] def get_data(self):
try:
search_opts = {}
filter = self.get_server_filter_info(self.request)
if filter['value'] and filter['field']:
search_opts = {filter['field']: filter['value']}
clusters = saharaclient.cluster_list(self.request, search_opts)
except Exception:
clusters = []
exceptions.handle(self.request,
_("Unable to fetch cluster list"))
return clusters
[docs]class ClusterDetailsView(tabs.TabView):
tab_group_class = _tabs.ClusterDetailsTabs
template_name = 'project/data_processing.clusters/details.html'
page_title = _("Cluster Details")
@memoized.memoized_method
[docs] def get_object(self):
cl_id = self.kwargs["cluster_id"]
try:
return saharaclient.cluster_get(self.request, cl_id)
except Exception:
msg = _('Unable to retrieve details for cluster "%s".') % cl_id
redirect = reverse(
"horizon:project:data_processing.clusters:clusters")
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_context_data(self, **kwargs):
context = super(ClusterDetailsView, self).get_context_data(**kwargs)
context['cluster'] = self.get_object()
return context
[docs]class ClusterEventsView(django_base.View):
_date_format = "%Y-%m-%dT%H:%M:%S"
@staticmethod
def _created_at_key(obj):
return datetime.strptime(obj["created_at"],
ClusterEventsView._date_format)
[docs] def get(self, request, *args, **kwargs):
cluster_id = kwargs.get("cluster_id")
try:
cluster = saharaclient.cluster_get(request, cluster_id,
show_progress=True)
node_group_mapping = {}
for node_group in cluster.node_groups:
node_group_mapping[node_group["id"]] = node_group["name"]
provision_steps = cluster.provision_progress
# Sort by create time
provision_steps = sorted(provision_steps,
key=ClusterEventsView._created_at_key,
reverse=True)
for step in provision_steps:
# Sort events of the steps also
step["events"] = sorted(step["events"],
key=ClusterEventsView._created_at_key,
reverse=True)
successful_events_count = 0
for event in step["events"]:
if event["node_group_id"]:
event["node_group_name"] = node_group_mapping[
event["node_group_id"]]
event_result = _("Unknown")
if event["successful"] is True:
successful_events_count += 1
event_result = _("Completed Successfully")
elif event["successful"] is False:
event_result = _("Failed")
event["result"] = event_result
if not event["event_info"]:
event["event_info"] = _("No info available")
start_time = datetime.strptime(step["created_at"],
self._date_format)
end_time = datetime.now()
# Clear out microseconds. There is no need for that precision.
end_time = end_time.replace(microsecond=0)
if step["successful"] is not None:
updated_at = step["updated_at"]
end_time = datetime.strptime(updated_at,
self._date_format)
step["duration"] = six.text_type(end_time - start_time)
result = _("In progress")
step["completed"] = successful_events_count
if step["successful"] is True:
step["completed"] = step["total"]
result = _("Completed Successfully")
elif step["successful"] is False:
result = _("Failed")
step["result"] = result
status = cluster.status.lower()
need_update = status not in ("active", "error")
except APIException:
# Cluster is not available. Returning empty event log.
need_update = False
provision_steps = []
context = {"provision_steps": provision_steps,
"need_update": need_update}
return HttpResponse(json.dumps(context),
content_type='application/json')
[docs]class CreateClusterView(workflows.WorkflowView):
workflow_class = create_flow.CreateCluster
success_url = \
"horizon:project:data_processing.clusters:create-cluster"
classes = ("ajax-modal",)
template_name = "project/data_processing.clusters/create.html"
page_title = _("Launch Cluster")
[docs]class ScaleClusterView(workflows.WorkflowView):
workflow_class = scale_flow.ScaleCluster
success_url = "horizon:project:data_processing.clusters"
classes = ("ajax-modal",)
template_name = "project/data_processing.clusters/scale.html"
page_title = _("Scale Cluster")
[docs] def get_context_data(self, **kwargs):
context = super(ScaleClusterView, self)\
.get_context_data(**kwargs)
context["cluster_id"] = kwargs["cluster_id"]
return context
[docs] def get_object(self, *args, **kwargs):
if not hasattr(self, "_object"):
template_id = self.kwargs['cluster_id']
try:
template = saharaclient.cluster_template_get(self.request,
template_id)
except Exception:
template = None
exceptions.handle(self.request,
_("Unable to fetch cluster template."))
self._object = template
return self._object
[docs] def get_initial(self):
initial = super(ScaleClusterView, self).get_initial()
initial.update({'cluster_id': self.kwargs['cluster_id']})
return initial