182 lines
6.0 KiB
Python
182 lines
6.0 KiB
Python
# Copyright 2013 NetApp
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""The share snapshots api."""
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import webob
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from webob import exc
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from cinder.api import common
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from cinder.api.contrib import shares
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from cinder.api import extensions
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from cinder.api.openstack import wsgi
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from cinder.api.views import share_snapshots as snapshot_views
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from cinder.api import xmlutil
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from cinder import exception
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from cinder.openstack.common import log as logging
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from cinder import share
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LOG = logging.getLogger(__name__)
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def make_snapshot(elem):
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elem.set('id')
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elem.set('size')
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elem.set('status')
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elem.set('name')
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elem.set('description')
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elem.set('share_proto')
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elem.set('export_location')
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class SnapshotTemplate(xmlutil.TemplateBuilder):
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def construct(self):
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root = xmlutil.TemplateElement('share-snapshot',
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selector='share-snapshot')
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make_snapshot(root)
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return xmlutil.MasterTemplate(root, 1)
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class SnapshotsTemplate(xmlutil.TemplateBuilder):
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def construct(self):
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root = xmlutil.TemplateElement('share-snapshots')
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elem = xmlutil.SubTemplateElement(root, 'share-snapshot',
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selector='share-snapshots')
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make_snapshot(elem)
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return xmlutil.MasterTemplate(root, 1)
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class ShareSnapshotsController(wsgi.Controller):
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"""The Share Snapshots API controller for the OpenStack API."""
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_view_builder_class = snapshot_views.ViewBuilder
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def __init__(self):
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super(ShareSnapshotsController, self).__init__()
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self.share_api = share.API()
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@wsgi.serializers(xml=SnapshotTemplate)
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def show(self, req, id):
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"""Return data about the given snapshot."""
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context = req.environ['cinder.context']
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try:
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snapshot = self.share_api.get_snapshot(context, id)
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except exception.NotFound:
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raise exc.HTTPNotFound()
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return self._view_builder.detail(req, snapshot)
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def delete(self, req, id):
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"""Delete a snapshot."""
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context = req.environ['cinder.context']
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LOG.audit(_("Delete snapshot with id: %s"), id, context=context)
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try:
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snapshot = self.share_api.get_snapshot(context, id)
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self.share_api.delete_snapshot(context, snapshot)
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except exception.NotFound:
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raise exc.HTTPNotFound()
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return webob.Response(status_int=202)
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@wsgi.serializers(xml=SnapshotsTemplate)
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def index(self, req):
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"""Returns a summary list of snapshots."""
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return self._get_snapshots(req, is_detail=False)
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@wsgi.serializers(xml=SnapshotsTemplate)
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def detail(self, req):
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"""Returns a detailed list of snapshots."""
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return self._get_snapshots(req, is_detail=True)
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def _get_snapshots(self, req, is_detail):
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"""Returns a list of snapshots."""
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context = req.environ['cinder.context']
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search_opts = {}
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search_opts.update(req.GET)
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# NOTE(rushiagr): v2 API allows name instead of display_name
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if 'name' in search_opts:
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search_opts['display_name'] = search_opts['name']
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del search_opts['name']
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shares.remove_invalid_options(context, search_opts,
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self._get_snapshots_search_options())
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snapshots = self.share_api.get_all_snapshots(context,
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search_opts=search_opts)
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limited_list = common.limited(snapshots, req)
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if is_detail:
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snapshots = self._view_builder.detail_list(req, limited_list)
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else:
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snapshots = self._view_builder.summary_list(req, limited_list)
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return snapshots
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def _get_snapshots_search_options(self):
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"""Return share search options allowed by non-admin."""
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return ('name', 'status', 'share_id')
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@wsgi.response(202)
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@wsgi.serializers(xml=SnapshotTemplate)
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def create(self, req, body):
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"""Creates a new snapshot."""
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context = req.environ['cinder.context']
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if not self.is_valid_body(body, 'share-snapshot'):
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raise exc.HTTPUnprocessableEntity()
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snapshot = body['share-snapshot']
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share_id = snapshot['share_id']
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share = self.share_api.get(context, share_id)
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msg = _("Create snapshot from share %s")
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LOG.audit(msg, share_id, context=context)
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# NOTE(rushiagr): v2 API allows name instead of display_name
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if 'name' in snapshot:
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snapshot['display_name'] = snapshot.get('name')
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del snapshot['name']
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# NOTE(rushiagr): v2 API allows description instead of
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# display_description
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if 'description' in snapshot:
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snapshot['display_description'] = snapshot.get('description')
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del snapshot['description']
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new_snapshot = self.share_api.create_snapshot(
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context,
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share,
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snapshot.get('display_name'),
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snapshot.get('display_description'))
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return self._view_builder.summary(req, dict(new_snapshot.iteritems()))
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class Share_snapshots(extensions.ExtensionDescriptor):
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"""Enable share snapshtos API."""
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name = 'ShareSnapshots'
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alias = 'share-snapshots'
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namespace = ''
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updated = '2013-03-01T00:00:00+00:00'
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def get_resources(self):
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controller = ShareSnapshotsController()
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resource = extensions.ResourceExtension(
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'share-snapshots', controller,
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collection_actions={'detail': 'GET'})
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return [resource]
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