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# Copyright 2012 Managed I.T.
#
# Author: Kiall Mac Innes <kiall@managedit.ie>
#
# 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.
import uuid
from keystoneauth1 import adapter
from designateclient import exceptions
def get_item_properties(item, fields, mixed_case_fields=(), formatters=None):
"""Return a tuple containing the item properties.
:param item: a single item resource (e.g. Server, Tenant, etc)
:param fields: tuple of strings with the desired field names
:param mixed_case_fields: tuple of field names to preserve case
:param formatters: dictionary mapping field names to callables
to format the values
"""
if formatters is None:
formatters = {}
row = []
for field in fields:
if field in formatters:
row.append(formatters[field](item))
else:
if field in mixed_case_fields:
field_name = field.replace(' ', '_')
else:
field_name = field.lower().replace(' ', '_')
if (not hasattr(item, field_name) and
(isinstance(item, dict) and field_name in item)):
data = item[field_name]
else:
data = getattr(item, field_name, '')
if data is None:
data = ''
row.append(data)
return tuple(row)
def get_columns(data):
"""
Some row's might have variable count of columns, ensure that we have the
same.
:param data: Results in [{}, {]}]
"""
columns = set()
def _seen(col):
columns.add(str(col))
map(lambda item: map(_seen, list(item.keys())), data)
return list(columns)
def find_resourceid_by_name_or_id(resource_client, name_or_id):
"""Find resource id from its id or name."""
try:
# Try to return an uuid
return str(uuid.UUID(name_or_id))
except ValueError:
# Not an uuid => assume it is resource name
pass
resources = resource_client.list()
candidate_ids = [r['id'] for r in resources if r.get('name') == name_or_id]
if not candidate_ids:
raise exceptions.ResourceNotFound(
'Could not find resource with name "%s"' % name_or_id)
elif len(candidate_ids) > 1:
str_ids = ','.join(candidate_ids)
raise exceptions.NoUniqueMatch(
'Multiple resources with name "%s": %s' % (name_or_id, str_ids))
return candidate_ids[0]
class AdapterWithTimeout(adapter.Adapter):
"""adapter.Adapter wraps around a Session.
The user can pass a timeout keyword that will apply only to
the Designate Client, in order:
- timeout keyword passed to ``request()``
- timeout keyword passed to ``AdapterWithTimeout()``
- timeout attribute on keystone session
"""
def __init__(self, *args, **kw):
self.timeout = kw.pop('timeout', None)
super(self.__class__, self).__init__(*args, **kw)
def request(self, *args, **kwargs):
if self.timeout is not None:
kwargs.setdefault('timeout', self.timeout)
return super(AdapterWithTimeout, self).request(*args, **kwargs)
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