146 lines
5.5 KiB
Python
146 lines
5.5 KiB
Python
# All Rights Reserved.
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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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from oslo_log import log as logging
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import pecan
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from pecan import request
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from neutron._i18n import _LW
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from neutron.api import api_common
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from neutron import manager
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from neutron.pecan_wsgi.controllers import utils
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LOG = logging.getLogger(__name__)
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class ItemController(utils.NeutronPecanController):
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def __init__(self, resource, item, plugin=None, resource_info=None):
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super(ItemController, self).__init__(None, resource, plugin=plugin,
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resource_info=resource_info)
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self.item = item
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@utils.expose(generic=True)
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def index(self, *args, **kwargs):
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return self.get(*args, **kwargs)
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def get(self, *args, **kwargs):
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getter = getattr(self.plugin, 'get_%s' % self.resource)
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neutron_context = request.context['neutron_context']
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fields = self._build_field_list(kwargs.pop('fields', []))
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return {self.resource: getter(neutron_context, self.item,
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fields=fields)}
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@utils.when(index, method='HEAD')
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@utils.when(index, method='POST')
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@utils.when(index, method='PATCH')
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def not_supported(self):
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pecan.abort(405)
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@utils.when(index, method='PUT')
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def put(self, *args, **kwargs):
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neutron_context = request.context['neutron_context']
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resources = request.context['resources']
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# TODO(kevinbenton): bulk?
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updater = getattr(self.plugin, 'update_%s' % self.resource)
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# Bulk update is not supported, 'resources' always contains a single
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# elemenet
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data = {self.resource: resources[0]}
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return {self.resource: updater(neutron_context, self.item, data)}
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@utils.when(index, method='DELETE')
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def delete(self):
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# TODO(kevinbenton): setting code could be in a decorator
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pecan.response.status = 204
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neutron_context = request.context['neutron_context']
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deleter = getattr(self.plugin, 'delete_%s' % self.resource)
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return deleter(neutron_context, self.item)
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@utils.expose()
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def _lookup(self, collection, *remainder):
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request.context['collection'] = collection
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controller = manager.NeutronManager.get_controller_for_resource(
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collection)
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if not controller:
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LOG.warning(_LW("No controller found for: %s - returning response "
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"code 404"), collection)
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pecan.abort(404)
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return controller, remainder
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class CollectionsController(utils.NeutronPecanController):
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item_controller_class = ItemController
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@utils.expose()
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def _lookup(self, item, *remainder):
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# Store resource identifier in request context
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request.context['resource_id'] = item
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uri_identifier = '%s_id' % self.resource
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request.context['uri_identifiers'][uri_identifier] = item
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return (self.item_controller_class(
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self.resource, item, resource_info=self.resource_info),
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remainder)
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@utils.expose(generic=True)
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def index(self, *args, **kwargs):
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return self.get(*args, **kwargs)
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def get(self, *args, **kwargs):
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# list request
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fields = kwargs.pop('fields', [])
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# if only one fields query parameter is passed, pecan will not put
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# that parameter in a list, so we need to convert it into a list
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fields = fields if isinstance(fields, list) else [fields]
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fields = self._build_field_list(fields)
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_listify = lambda x: x if isinstance(x, list) else [x]
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filters = api_common.get_filters_from_dict(
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{k: _listify(v) for k, v in kwargs.items()},
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self.resource_info,
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skips=['fields', 'sort_key', 'sort_dir',
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'limit', 'marker', 'page_reverse'])
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lister = getattr(self.plugin, 'get_%s' % self.collection)
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neutron_context = request.context['neutron_context']
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return {self.collection: lister(neutron_context,
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fields=fields, filters=filters)}
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@utils.when(index, method='HEAD')
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@utils.when(index, method='PATCH')
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@utils.when(index, method='PUT')
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@utils.when(index, method='DELETE')
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def not_supported(self):
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pecan.abort(405)
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@utils.when(index, method='POST')
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def post(self, *args, **kwargs):
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# TODO(kevinbenton): emulated bulk!
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resources = request.context['resources']
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pecan.response.status = 201
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return self.create(resources)
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def create(self, resources):
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if len(resources) > 1:
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# Bulk!
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method = 'create_%s_bulk' % self.resource
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key = self.collection
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data = {key: [{self.resource: res} for res in resources]}
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else:
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method = 'create_%s' % self.resource
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key = self.resource
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data = {key: resources[0]}
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creator = getattr(self.plugin, method)
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neutron_context = request.context['neutron_context']
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return {key: creator(neutron_context, data)}
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