100 lines
3.7 KiB
Python
100 lines
3.7 KiB
Python
# Copyright (c) 2018 NEC, Corp.
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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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import pecan
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from zun.api.controllers import base
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from zun.api.controllers.v1 import collection
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from zun.api.controllers.v1.views import availability_zone_view as view
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from zun.api import utils as api_utils
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from zun.common import exception
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from zun.common import policy
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import zun.conf
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from zun import objects
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CONF = zun.conf.CONF
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def check_policy_on_availability_zones(availability_zone, action):
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context = pecan.request.context
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policy.enforce(context, action, availability_zone, action=action)
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class AvailabilityZoneCollection(collection.Collection):
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"""API representation of a collection of availability zones."""
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fields = {
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'availability_zones',
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'next'
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}
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"""A list containing availability zone objects"""
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def __init__(self, **kwargs):
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super(AvailabilityZoneCollection, self).__init__(**kwargs)
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self._type = 'availability_zones'
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@staticmethod
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def convert_with_links(zones, limit, url=None,
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expand=False, **kwargs):
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collection = AvailabilityZoneCollection()
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collection.availability_zones = [
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view.format_a_zone(url, p) for p in zones]
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collection.next = collection.get_next(limit, url=url, **kwargs)
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return collection
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class AvailabilityZoneController(base.Controller):
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"""Availability Zone info controller"""
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@pecan.expose('json')
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@exception.wrap_pecan_controller_exception
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def get_all(self, **kwargs):
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"""Retrieve a list of availability zones"""
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context = pecan.request.context
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context.all_projects = True
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policy.enforce(context, "availability_zones:get_all",
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action="availability_zones:get_all")
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return self._get_host_collection(**kwargs)
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def _get_host_collection(self, **kwargs):
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context = pecan.request.context
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limit = api_utils.validate_limit(kwargs.get('limit'))
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sort_dir = api_utils.validate_sort_dir(kwargs.get('sort_dir', 'asc'))
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sort_key = kwargs.get('sort_key', 'availability_zone')
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expand = kwargs.get('expand')
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marker_obj = None
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resource_url = kwargs.get('resource_url')
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marker = kwargs.get('marker')
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if marker:
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marker_obj = objects.ZunService.get_by_uuid(context, marker)
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services = objects.ZunService.list(context,
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limit,
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marker_obj,
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sort_key,
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sort_dir)
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zones = {}
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for service in services:
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zones[service.availability_zone] = service
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return AvailabilityZoneCollection.convert_with_links(zones.values(),
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limit,
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url=resource_url,
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expand=expand,
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sort_key=sort_key,
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sort_dir=sort_dir)
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