nova/doc/ext/versioned_notifications.py
Balazs Gibizer b8897aba72 Fix notification doc generator
The doc generator only picked up the event types related to instance
actions because the doc generator looked up the registered notification
classes only. Until now, only the instance related notifications were
imported in the doc generation environment so the other notification
classes were not registered.

This commit explicitly imports the modules that defines the notification
classes to make the doc complete.

Change-Id: I269e05ddb62ec6c6cc7f7922c1344186ccf850d1
Closes-bug: #1640818
2016-11-24 13:25:54 +00:00

139 lines
4.4 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
# Make sure that all the notification classes are defined so the
# registration mechanism can pick them up later.
from nova.notifications.objects import exception
from nova.notifications.objects import instance
from nova.notifications.objects import service
class VersionedNotificationDirective(Directive):
SAMPLE_ROOT = 'doc/notification_samples/'
TOGGLE_SCRIPT = """
<script>
jQuery(document).ready(function(){
jQuery('#%s-div').toggle('show');
jQuery('#%s-hideshow').on('click', function(event) {
jQuery('#%s-div').toggle('show');
});
});
</script>
"""
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]
for sample in cls.samples:
notifications.append((cls.__name__,
payload_cls.__name__,
sample))
return sorted(notifications)
def _build_markup(self, notifications):
content = []
cols = ['Event type', 'Notification class', 'Payload class', 'Sample']
table = nodes.table()
content.append(table)
group = nodes.tgroup(cols=len(cols))
table.append(group)
head = nodes.thead()
group.append(head)
for _ in 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_file in notifications:
event_type = sample_file[0: -5].replace('-', '.')
row = nodes.row()
body.append(row)
col = nodes.entry()
row.append(col)
text = nodes.literal(text=event_type)
col.append(text)
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)
with open(self.SAMPLE_ROOT + sample_file, 'r') as f:
sample_content = f.read()
event_type = sample_file[0: -5]
html_str = self.TOGGLE_SCRIPT % ((event_type, ) * 3)
html_str += ("<input type='button' id='%s-hideshow' "
"value='hide/show sample'>" % event_type)
html_str += ("<div id='%s-div'><pre>%s</pre></div>"
% (event_type, sample_content))
raw = nodes.raw('', html_str, format="html")
col.append(raw)
return content
def setup(app):
app.add_directive('versioned_notifications',
VersionedNotificationDirective)