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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
"""
Views for managing resource classes
"""
import logging
import random
from django.core.urlresolvers import reverse
from django.http import HttpResponse
from django.utils import simplejson
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import tabs
from horizon import workflows
from tuskar_ui import api as tuskar
from tuskar_ui.infrastructure. \
resource_management.resource_classes.forms import DeleteForm
from tuskar_ui.infrastructure. \
resource_management.resource_classes.tabs import ResourceClassDetailTabs
from tuskar_ui.infrastructure. \
resource_management.resource_classes.workflows import CreateResourceClass
from tuskar_ui.infrastructure. \
resource_management.resource_classes.workflows import DetailUpdateWorkflow
from tuskar_ui.infrastructure. \
resource_management.resource_classes.workflows import UpdateFlavorsWorkflow
from tuskar_ui.infrastructure. \
resource_management.resource_classes.workflows import UpdateRacksWorkflow
from tuskar_ui.infrastructure. \
resource_management.resource_classes.workflows import UpdateResourceClass
LOG = logging.getLogger(__name__)
class CreateView(workflows.WorkflowView):
workflow_class = CreateResourceClass
def get_initial(self):
pass
class UpdateView(workflows.WorkflowView):
workflow_class = UpdateResourceClass
def get_context_data(self, **kwargs):
context = super(UpdateView, self).get_context_data(**kwargs)
context["resource_class_id"] = self.kwargs['resource_class_id']
return context
def _get_object(self, *args, **kwargs):
if not hasattr(self, "_object"):
resource_class_id = self.kwargs['resource_class_id']
try:
self._object = \
tuskar.ResourceClass.get(self.request,
resource_class_id)
except:
redirect = self.success_url
msg = _('Unable to retrieve resource class details.')
exceptions.handle(self.request, msg, redirect=redirect)
return self._object
def get_initial(self):
resource_class = self._get_object()
return {'resource_class_id': resource_class.id,
'name': resource_class.name,
'service_type': resource_class.service_type}
class DetailUpdateView(UpdateView):
workflow_class = DetailUpdateWorkflow
class UpdateRacksView(UpdateView):
workflow_class = UpdateRacksWorkflow
class UpdateFlavorsView(UpdateView):
workflow_class = UpdateFlavorsWorkflow
class DetailView(tabs.TabView):
tab_group_class = ResourceClassDetailTabs
template_name = ('infrastructure/resource_management/resource_classes/'
'detail.html')
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context["resource_class"] = self.get_data()
return context
def get_data(self):
if not hasattr(self, "_resource_class"):
try:
resource_class_id = self.kwargs['resource_class_id']
resource_class = tuskar.ResourceClass.get(self.request,
resource_class_id)
except:
redirect = reverse('horizon:infrastructure:'
'resource_management:index')
exceptions.handle(self.request,
_('Unable to retrieve details for '
'resource class "%s".')
% resource_class_id,
redirect=redirect)
self._resource_class = resource_class
return self._resource_class
def get_tabs(self, request, *args, **kwargs):
resource_class = self.get_data()
return self.tab_group_class(request, resource_class=resource_class,
**kwargs)
class DetailActionView(forms.ModalFormView):
template_name = ('infrastructure/resource_management/'
'resource_classes/action.html')
def get_form(self, form_class):
"""
Returns an instance of the form to be used in this view.
"""
try:
action = self.request.GET.get('action')
if action == "delete":
form_class = DeleteForm
return form_class(self.request, **self.get_form_kwargs())
except:
exceptions.handle(self.request, _("Unable to build an Action."))
def get_success_url(self):
# FIXME this should be set on form level
return reverse("horizon:infrastructure:resource_management:index")
def get_context_data(self, **kwargs):
context = super(DetailActionView, self).get_context_data(**kwargs)
context['resource_class_id'] = self.kwargs['resource_class_id']
context['action'] = context['form'].initial.get('action', None)
context['header'] = context['form'].command.header
return context
def get_initial(self):
try:
resource_class = tuskar.ResourceClass.get(
self.request, self.kwargs['resource_class_id'])
action = self.request.GET.get('action')
except:
exceptions.handle(self.request,
_("Unable to retrieve resource class data."))
return {'resource_class': resource_class,
'action': action}
def rack_health(request, resource_class_id=None):
# FIXME replace mock data
random.seed()
data = []
statuses = ["Good", "Warnings", "Disaster"]
colors = ["rgb(244,244,244)", "rgb(240,170,0)", "rgb(200,0,0)"]
resource_class = (tuskar.ResourceClass.get(request,
resource_class_id))
for rack in resource_class.list_racks:
rand_index = random.randint(0, 2)
percentage = (2 - rand_index) * 50
color = colors[rand_index]
tooltip = ("<p>Rack: <strong>{0}</strong></p><p>{1}</p>").format(
rack.name,
statuses[rand_index])
data.append({'tooltip': tooltip,
'color': color,
'status': statuses[rand_index],
'percentage': percentage,
'id': rack.id,
'name': rack.name,
'url': "FIXME url"})
data.sort(key=lambda x: x['percentage'])
res = {'data': data}
return HttpResponse(simplejson.dumps(res),
mimetype="application/json")
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