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# Copyright 2012-2013 OpenStack Foundation
#
# 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.
#
"""Extension action implementations"""
import itertools
import logging
from cliff import lister
from openstackclient.common import utils
class ListExtension(lister.Lister):
"""List API extensions"""
log = logging.getLogger(__name__ + '.ListExtension')
def get_parser(self, prog_name):
parser = super(ListExtension, self).get_parser(prog_name)
parser.add_argument(
'--compute',
action='store_true',
default=False,
help='List extensions for the Compute API')
parser.add_argument(
'--identity',
action='store_true',
default=False,
help='List extensions for the Identity API')
parser.add_argument(
'--network',
action='store_true',
default=False,
help='List extensions for the Network API')
parser.add_argument(
'--volume',
action='store_true',
default=False,
help='List extensions for the Volume API')
parser.add_argument(
'--long',
action='store_true',
default=False,
help='List additional fields in output')
return parser
def take_action(self, parsed_args):
self.log.debug('take_action(%s)' % parsed_args)
if parsed_args.long:
columns = ('Name', 'Namespace', 'Description',
'Alias', 'Updated', 'Links')
else:
columns = ('Name', 'Alias', 'Description')
data = []
# by default we want to show everything, unless the
# user specifies one or more of the APIs to show
# for now, only identity and compute are supported.
show_all = (not parsed_args.identity and not parsed_args.compute
and not parsed_args.volume and not parsed_args.network)
if parsed_args.identity or show_all:
identity_client = self.app.client_manager.identity
try:
data += identity_client.extensions.list()
except Exception:
message = "Extensions list not supported by Identity API"
self.log.warning(message)
if parsed_args.compute or show_all:
compute_client = self.app.client_manager.compute
try:
data += compute_client.list_extensions.show_all()
except Exception:
message = "Extensions list not supported by Compute API"
self.log.warning(message)
if parsed_args.volume or show_all:
volume_client = self.app.client_manager.volume
try:
data += volume_client.list_extensions.show_all()
except Exception:
message = "Extensions list not supported by Volume API"
self.log.warning(message)
# Resource classes for the above
extension_tuples = (
utils.get_item_properties(
s,
columns,
formatters={},
) for s in data
)
# Dictionaries for the below
if parsed_args.network or show_all:
network_client = self.app.client_manager.network
try:
data = network_client.list_extensions()['extensions']
dict_tuples = (
utils.get_dict_properties(
s,
columns,
formatters={},
) for s in data
)
extension_tuples = itertools.chain(
extension_tuples,
dict_tuples
)
except Exception:
message = "Extensions list not supported by Network API"
self.log.warning(message)
return (columns, extension_tuples)
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