Files
python-cinderclient/cinderclient/service_catalog.py
Dirk Mueller 7359c976d1 Start Gating on Pyflakes and Hacking
Instead of globally ignoring Pyflakes and Hacking
warnings, only blacklist those that occur frequently
and fix the others. Start gating on those checks.

Change-Id: Ice032c16d445ef08ef018bcdc5c221ab3c323755
2013-06-09 13:29:23 +02:00

79 lines
2.9 KiB
Python

# Copyright 2011 OpenStack LLC.
# Copyright 2011, Piston Cloud Computing, 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.
import cinderclient.exceptions
class ServiceCatalog(object):
"""Helper methods for dealing with a Keystone Service Catalog."""
def __init__(self, resource_dict):
self.catalog = resource_dict
def get_token(self):
return self.catalog['access']['token']['id']
def url_for(self, attr=None, filter_value=None,
service_type=None, endpoint_type='publicURL',
service_name=None, volume_service_name=None):
"""Fetch the public URL from the Compute service for
a particular endpoint attribute. If none given, return
the first. See tests for sample service catalog.
"""
matching_endpoints = []
if 'endpoints' in self.catalog:
# We have a bastardized service catalog. Treat it special. :/
for endpoint in self.catalog['endpoints']:
if not filter_value or endpoint[attr] == filter_value:
matching_endpoints.append(endpoint)
if not matching_endpoints:
raise cinderclient.exceptions.EndpointNotFound()
# We don't always get a service catalog back ...
if 'serviceCatalog' not in self.catalog['access']:
return None
# Full catalog ...
catalog = self.catalog['access']['serviceCatalog']
for service in catalog:
if service.get("type") != service_type:
continue
if (service_name and service_type == 'compute' and
service.get('name') != service_name):
continue
if (volume_service_name and service_type == 'volume' and
service.get('name') != volume_service_name):
continue
endpoints = service['endpoints']
for endpoint in endpoints:
if not filter_value or endpoint.get(attr) == filter_value:
endpoint["serviceName"] = service.get("name")
matching_endpoints.append(endpoint)
if not matching_endpoints:
raise cinderclient.exceptions.EndpointNotFound()
elif len(matching_endpoints) > 1:
raise cinderclient.exceptions.AmbiguousEndpoints(
endpoints=matching_endpoints)
else:
return matching_endpoints[0][endpoint_type]