118 lines
4.1 KiB
Python
118 lines
4.1 KiB
Python
#
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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 itertools
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from heat.api.openstack.v1 import util
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from heat.common import wsgi
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from heat.rpc import api as engine_api
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from heat.common import identifier
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from heat.rpc import client as rpc_client
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def format_resource(req, res, keys=[]):
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include_key = lambda k: k in keys if keys else True
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def transform(key, value):
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if not include_key(key):
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return
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if key == engine_api.RES_ID:
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identity = identifier.ResourceIdentifier(**value)
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yield ('links', [util.make_link(req, identity),
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util.make_link(req, identity.stack(), 'stack')])
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elif (key == engine_api.RES_STACK_NAME or
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key == engine_api.RES_STACK_ID or
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key == engine_api.RES_ACTION):
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return
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elif (key == engine_api.RES_METADATA):
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return
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elif (key == engine_api.RES_STATUS and engine_api.RES_ACTION in res):
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# To avoid breaking API compatibility, we join RES_ACTION
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# and RES_STATUS, so the API format doesn't expose the
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# internal split of state into action/status
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yield (key, '_'.join((res[engine_api.RES_ACTION], value)))
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elif (key == engine_api.RES_NAME):
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yield ('logical_resource_id', value)
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yield (key, value)
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else:
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yield (key, value)
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return dict(itertools.chain.from_iterable(
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transform(k, v) for k, v in res.items()))
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class ResourceController(object):
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"""
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WSGI controller for Resources in Heat v1 API
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Implements the API actions
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"""
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# Define request scope (must match what is in policy.json)
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REQUEST_SCOPE = 'resource'
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def __init__(self, options):
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self.options = options
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self.rpc_client = rpc_client.EngineClient()
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@util.identified_stack
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def index(self, req, identity):
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"""
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Lists summary information for all resources
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"""
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res_list = self.rpc_client.list_stack_resources(req.context,
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identity)
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return {'resources': [format_resource(req, res) for res in res_list]}
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@util.identified_stack
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def show(self, req, identity, resource_name):
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"""
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Gets detailed information for a resource
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"""
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res = self.rpc_client.describe_stack_resource(req.context,
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identity,
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resource_name)
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return {'resource': format_resource(req, res)}
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@util.identified_stack
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def metadata(self, req, identity, resource_name):
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"""
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Gets metadata information for a resource
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"""
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res = self.rpc_client.describe_stack_resource(req.context,
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identity,
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resource_name)
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return {engine_api.RES_METADATA: res[engine_api.RES_METADATA]}
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@util.identified_stack
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def signal(self, req, identity, resource_name, body=None):
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self.rpc_client.resource_signal(req.context,
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stack_identity=identity,
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resource_name=resource_name,
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details=body)
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def create_resource(options):
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"""
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Resources resource factory method.
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"""
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deserializer = wsgi.JSONRequestDeserializer()
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serializer = wsgi.JSONResponseSerializer()
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return wsgi.Resource(ResourceController(options), deserializer, serializer)
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