cinder/cinder/api/contrib/volume_host_attribute.py
Mike Perez 2581554921 Moving contrib to cinder.api
This moves over all contrib to a common place for all api versions to
use. Test directory structure has been adjusted to match.

For compatibility with old cinder config settings, we ignore the old
contrib path and use the new location.

progress on blueprint apiv2

Change-Id: If1a24fd3c4d15db559674a021f6928613966e3a1
2012-11-21 21:26:40 -08:00

94 lines
3.4 KiB
Python

# Copyright 2012 OpenStack, LLC.
#
# 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.
from cinder.api import extensions
from cinder.api.openstack import wsgi
from cinder.api import xmlutil
from cinder.openstack.common import log as logging
from cinder import volume
LOG = logging.getLogger(__name__)
authorize = extensions.soft_extension_authorizer('volume',
'volume_host_attribute')
class VolumeHostAttributeController(wsgi.Controller):
def __init__(self, *args, **kwargs):
super(VolumeHostAttributeController, self).__init__(*args, **kwargs)
self.volume_api = volume.API()
def _add_volume_host_attribute(self, context, resp_volume):
try:
db_volume = self.volume_api.get(context, resp_volume['id'])
except Exception:
return
else:
key = "%s:host" % Volume_host_attribute.alias
resp_volume[key] = db_volume['host']
@wsgi.extends
def show(self, req, resp_obj, id):
context = req.environ['cinder.context']
if authorize(context):
resp_obj.attach(xml=VolumeHostAttributeTemplate())
self._add_volume_host_attribute(context, resp_obj.obj['volume'])
@wsgi.extends
def detail(self, req, resp_obj):
context = req.environ['cinder.context']
if authorize(context):
resp_obj.attach(xml=VolumeListHostAttributeTemplate())
for volume in list(resp_obj.obj['volumes']):
self._add_volume_host_attribute(context, volume)
class Volume_host_attribute(extensions.ExtensionDescriptor):
"""Expose host as an attribute of a volume."""
name = "VolumeHostAttribute"
alias = "os-vol-host-attr"
namespace = ("http://docs.openstack.org/volume/ext/"
"volume_host_attribute/api/v1")
updated = "2011-11-03T00:00:00+00:00"
def get_controller_extensions(self):
controller = VolumeHostAttributeController()
extension = extensions.ControllerExtension(self, 'volumes', controller)
return [extension]
def make_volume(elem):
elem.set('{%s}host' % Volume_host_attribute.namespace,
'%s:host' % Volume_host_attribute.alias)
class VolumeHostAttributeTemplate(xmlutil.TemplateBuilder):
def construct(self):
root = xmlutil.TemplateElement('volume', selector='volume')
make_volume(root)
alias = Volume_host_attribute.alias
namespace = Volume_host_attribute.namespace
return xmlutil.SlaveTemplate(root, 1, nsmap={alias: namespace})
class VolumeListHostAttributeTemplate(xmlutil.TemplateBuilder):
def construct(self):
root = xmlutil.TemplateElement('volumes')
elem = xmlutil.SubTemplateElement(root, 'volume', selector='volumes')
make_volume(elem)
alias = Volume_host_attribute.alias
namespace = Volume_host_attribute.namespace
return xmlutil.SlaveTemplate(root, 1, nsmap={alias: namespace})