Source code for heat.api.openstack.v1.resources

# vim: tabstop=4 shiftwidth=4 softtabstop=4

#
#    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 itertools

from heat.api.openstack.v1 import util
from heat.common import wsgi
from heat.rpc import api as engine_api
from heat.common import identifier
from heat.rpc import client as rpc_client


[docs]def format_resource(req, res, keys=[]): include_key = lambda k: k in keys if keys else True def transform(key, value): if not include_key(key): return if key == engine_api.RES_ID: identity = identifier.ResourceIdentifier(**value) yield ('links', [util.make_link(req, identity), util.make_link(req, identity.stack(), 'stack')]) elif (key == engine_api.RES_STACK_NAME or key == engine_api.RES_STACK_ID or key == engine_api.RES_ACTION): return elif (key == engine_api.RES_METADATA): return elif (key == engine_api.RES_STATUS and engine_api.RES_ACTION in res): # To avoid breaking API compatibility, we join RES_ACTION # and RES_STATUS, so the API format doesn't expose the # internal split of state into action/status yield (key, '_'.join((res[engine_api.RES_ACTION], value))) elif (key == engine_api.RES_NAME): yield ('logical_resource_id', value) yield (key, value) else: yield (key, value) return dict(itertools.chain.from_iterable( transform(k, v) for k, v in res.items()))
[docs]class ResourceController(object): """ WSGI controller for Resources in Heat v1 API Implements the API actions """ def __init__(self, options): self.options = options self.engine = rpc_client.EngineClient() @util.identified_stack
[docs] def index(self, req, identity): """ Lists summary information for all resources """ res_list = self.engine.list_stack_resources(req.context, identity) return {'resources': [format_resource(req, res) for res in res_list]}
@util.identified_stack
[docs] def show(self, req, identity, resource_name): """ Gets detailed information for a stack """ res = self.engine.describe_stack_resource(req.context, identity, resource_name) return {'resource': format_resource(req, res)}
@util.identified_stack
[docs] def metadata(self, req, identity, resource_name): """ Gets detailed information for a stack """ res = self.engine.describe_stack_resource(req.context, identity, resource_name) return {engine_api.RES_METADATA: res[engine_api.RES_METADATA]}
[docs]def create_resource(options): """ Resources resource factory method. """ # TODO(zaneb) handle XML based on Content-type/Accepts deserializer = wsgi.JSONRequestDeserializer() serializer = wsgi.JSONResponseSerializer() return wsgi.Resource(ResourceController(options), deserializer, serializer)