82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
# Copyright (c) 2015 Red Hat, Inc.
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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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from cinder.api import common
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class ViewBuilder(common.ViewBuilder):
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"""Model snapshot API responses as a python dictionary."""
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_collection_name = "snapshots"
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def __init__(self):
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"""Initialize view builder."""
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super(ViewBuilder, self).__init__()
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def summary_list(self, request, snapshots, snapshot_count=None):
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"""Show a list of snapshots without many details."""
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return self._list_view(self.summary, request, snapshots,
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snapshot_count)
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def detail_list(self, request, snapshots, snapshot_count=None):
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"""Detailed view of a list of snapshots."""
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return self._list_view(self.detail, request, snapshots, snapshot_count,
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coll_name=self._collection_name + '/detail')
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def summary(self, request, snapshot):
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"""Generic, non-detailed view of a snapshot."""
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if isinstance(snapshot.metadata, dict):
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metadata = snapshot.metadata
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else:
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metadata = {}
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return {
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'snapshot': {
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'id': snapshot.id,
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'created_at': snapshot.created_at,
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'updated_at': snapshot.updated_at,
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'name': snapshot.display_name,
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'description': snapshot.display_description,
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'volume_id': snapshot.volume_id,
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'status': snapshot.status,
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'size': snapshot.volume_size,
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'metadata': metadata,
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}
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}
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def detail(self, request, snapshot):
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"""Detailed view of a single snapshot."""
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# NOTE(geguileo): No additional data at the moment
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return self.summary(request, snapshot)
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def _list_view(self, func, request, snapshots, snapshot_count,
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coll_name=_collection_name):
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"""Provide a view for a list of snapshots."""
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snapshots_list = [func(request, snapshot)['snapshot']
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for snapshot in snapshots]
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snapshots_links = self._get_collection_links(request,
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snapshots,
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coll_name,
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snapshot_count)
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snapshots_dict = {self._collection_name: snapshots_list}
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if snapshots_links:
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snapshots_dict[self._collection_name + '_links'] = snapshots_links
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if snapshot_count is not None:
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snapshots_dict['count'] = snapshot_count
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return snapshots_dict
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