Files
nova/doc/ext/versioned_notifications.py
Balazs Gibizer 520ee65a55 Do not register notification objects
Only registering the notification objects during unit test.
Notification objects are never used in the Nova RPC interface
and shall not be mixed with such objects.

Change-Id: Iba9079bb204e6ef1302529ac159199ab9fa6272b
2016-06-08 11:32:53 +02:00

114 lines
3.5 KiB
Python

# 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.
"""
This provides a sphinx extension able to list the implemented versioned
notifications into the developer documentation.
It is used via a single directive in the .rst file
.. versioned_notifications::
"""
from sphinx.util.compat import Directive
from docutils import nodes
from nova.notifications.objects import base as notification
from nova.objects import base
def full_name(cls):
return cls.__module__ + '.' + cls.__name__
class VersionedNotificationDirective(Directive):
LINK_PREFIX = 'https://git.openstack.org/cgit/openstack/nova/plain/'
SAMPLE_ROOT = 'doc/notification_samples/'
def run(self):
notifications = self._collect_notifications()
return self._build_markup(notifications)
def _collect_notifications(self):
base.NovaObjectRegistry.register_notification_objects()
notifications = []
ovos = base.NovaObjectRegistry.obj_classes()
for name, cls in ovos.items():
cls = cls[0]
if (issubclass(cls, notification.NotificationBase) and
cls != notification.NotificationBase):
payload_name = cls.fields['payload'].objname
payload_cls = ovos[payload_name][0]
notifications.append((full_name(cls), full_name(payload_cls),
cls.sample))
return notifications
def _build_markup(self, notifications):
content = []
cols = ['Notification class', 'Payload class', 'Sample file link']
table = nodes.table()
content.append(table)
group = nodes.tgroup(cols=len(cols))
table.append(group)
head = nodes.thead()
group.append(head)
for i in range(len(cols)):
group.append(nodes.colspec(colwidth=1))
body = nodes.tbody()
group.append(body)
# fill the table header
row = nodes.row()
body.append(row)
for col_name in cols:
col = nodes.entry()
row.append(col)
text = nodes.strong(text=col_name)
col.append(text)
# fill the table content, one notification per row
for name, payload, sample in notifications:
row = nodes.row()
body.append(row)
col = nodes.entry()
row.append(col)
text = nodes.literal(text=name)
col.append(text)
col = nodes.entry()
row.append(col)
text = nodes.literal(text=payload)
col.append(text)
col = nodes.entry()
row.append(col)
ref = nodes.reference(refuri=self.LINK_PREFIX +
self.SAMPLE_ROOT + sample)
txt = nodes.inline()
col.append(txt)
txt.append(ref)
ref.append(nodes.literal(text=sample))
return content
def setup(app):
app.add_directive('versioned_notifications',
VersionedNotificationDirective)