cinder/cinder/api/views/capabilities.py

50 lines
2.1 KiB
Python

# Copyright (c) 2015 Hitachi Data Systems, Inc.
# All Rights Reserved.
#
# 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 common
class ViewBuilder(common.ViewBuilder):
"""Model capabilities API responses as a python dictionary."""
_collection_name = "capabilities"
def __init__(self):
"""Initialize view builder."""
super(ViewBuilder, self).__init__()
def summary(self, request, capabilities, id):
"""Summary view of a backend capabilities."""
# Internally storage_protocol can be a list with all the variants (eg.
# FC, fibre_channel), but we return a single value to users. The first
# value is the preferred variant.
storage_protocol = capabilities.get('storage_protocol')
if isinstance(storage_protocol, list):
storage_protocol = storage_protocol[0]
return {
'namespace': 'OS::Storage::Capabilities::%s' % id,
'vendor_name': capabilities.get('vendor_name'),
'volume_backend_name': capabilities.get('volume_backend_name'),
'pool_name': capabilities.get('pool_name'),
'driver_version': capabilities.get('driver_version'),
'storage_protocol': storage_protocol,
'display_name': capabilities.get('display_name'),
'description': capabilities.get('description'),
'visibility': capabilities.get('visibility'),
'replication_targets': capabilities.get('replication_targets', []),
'properties': capabilities.get('properties'),
}