OpenStack Orchestration (Heat)
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heat/heat/rpc/worker_client.py

57 lines
1.7 KiB

# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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.
"""
Client side of the heat worker RPC API.
"""
from heat.common import messaging
from heat.rpc import worker_api
class WorkerClient(object):
'''Client side of the heat worker RPC API.
API version history::
1.0 - Initial version.
1.1 - Added check_resource.
'''
BASE_RPC_API_VERSION = '1.0'
def __init__(self):
self._client = messaging.get_rpc_client(
topic=worker_api.TOPIC,
version=self.BASE_RPC_API_VERSION)
@staticmethod
def make_msg(method, **kwargs):
return method, kwargs
def cast(self, ctxt, msg, version=None):
method, kwargs = msg
if version is not None:
client = self._client.prepare(version=version)
else:
client = self._client
client.cast(ctxt, method, **kwargs)
def check_resource(self, ctxt, resource_id,
current_traversal, data, is_update):
self.cast(ctxt, self.make_msg(
'check_resource', resource_id=resource_id,
current_traversal=current_traversal, data=data,
is_update=is_update))