OpenStack Orchestration (Heat)
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# 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
# 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
import six
from webob import exc
from heat.api.openstack.v1 import util
from heat.common.i18n import _
from heat.common import identifier
from heat.common import param_utils
from heat.common import serializers
from heat.common import wsgi
from heat.rpc import api as rpc_api
from heat.rpc import client as rpc_client
summary_keys = [
def format_event(req, event, keys=None):
def include_key(k):
return k in keys if keys else True
def transform(key, value):
if not include_key(key):
if key == rpc_api.EVENT_ID:
identity = identifier.EventIdentifier(**value)
yield ('id', identity.event_id)
yield ('links', [util.make_link(req, identity),
util.make_link(req, identity.resource(),
util.make_link(req, identity.stack(),
elif key in (rpc_api.EVENT_STACK_ID, rpc_api.EVENT_STACK_NAME,
elif (key == rpc_api.EVENT_RES_STATUS and
rpc_api.EVENT_RES_ACTION in event):
# 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((event[rpc_api.EVENT_RES_ACTION], value)))
elif (key == rpc_api.RES_NAME):
yield ('logical_resource_id', value)
yield (key, value)
yield (key, value)
ev = dict(itertools.chain.from_iterable(
transform(k, v) for k, v in event.items()))
root_stack_id = event.get(rpc_api.EVENT_ROOT_STACK_ID)
if root_stack_id:
root_identifier = identifier.HeatIdentifier(**root_stack_id)
ev['links'].append(util.make_link(req, root_identifier, 'root_stack'))
return ev
class EventController(object):
"""WSGI controller for Events in Heat v1 API.
Implements the API actions.
# Define request scope (must match what is in policy.json or policies in
# code)
REQUEST_SCOPE = 'events'
def __init__(self, options):
self.options = options
self.rpc_client = rpc_client.EngineClient()
def _event_list(self, req, identity, detail=False, filters=None,
limit=None, marker=None, sort_keys=None, sort_dir=None,
events = self.rpc_client.list_events(req.context,
keys = None if detail else summary_keys
return [format_event(req, e, keys) for e in events]
def index(self, req, identity, resource_name=None):
"""Lists summary information for all events."""
whitelist = {
'limit': util.PARAM_TYPE_SINGLE,
'marker': util.PARAM_TYPE_SINGLE,
'sort_dir': util.PARAM_TYPE_SINGLE,
'sort_keys': util.PARAM_TYPE_MULTI,
'nested_depth': util.PARAM_TYPE_SINGLE,
filter_whitelist = {
'resource_status': util.PARAM_TYPE_MIXED,
'resource_action': util.PARAM_TYPE_MIXED,
'resource_name': util.PARAM_TYPE_MIXED,
'resource_type': util.PARAM_TYPE_MIXED,
params = util.get_allowed_params(req.params, whitelist)
filter_params = util.get_allowed_params(req.params, filter_whitelist)
int_params = (rpc_api.PARAM_LIMIT, rpc_api.PARAM_NESTED_DEPTH)
for key in int_params:
if key in params:
params[key] = param_utils.extract_int(
key, params[key], allow_zero=True)
except ValueError as e:
raise exc.HTTPBadRequest(six.text_type(e))
if resource_name is None:
if not filter_params:
filter_params = None
filter_params['resource_name'] = resource_name
events = self._event_list(
req, identity, filters=filter_params, **params)
if not events and resource_name is not None:
msg = _('No events found for resource %s') % resource_name
raise exc.HTTPNotFound(msg)
return {'events': events}
def show(self, req, identity, resource_name, event_id):
"""Gets detailed information for an event."""
filters = {"resource_name": resource_name, "uuid": event_id}
events = self._event_list(req, identity, filters=filters, detail=True)
if not events:
raise exc.HTTPNotFound(_('No event %s found') % event_id)
return {'event': events[0]}
def create_resource(options):
"""Events resource factory method."""
deserializer = wsgi.JSONRequestDeserializer()
serializer = serializers.JSONResponseSerializer()
return wsgi.Resource(EventController(options), deserializer, serializer)