81b45f2c1d
The statless design was developed in the experiment branch, the experiment shows advantage in removing the status synchronization, uuid mapping compared to the stateful design, and also fully reduce the coupling with OpenStack services like Nova, Cinder. The overhead query latency for resources also acceptable. It's time to move the statless design to the master branch BP: https://blueprints.launchpad.net/tricircle/+spec/implement-stateless Change-Id: I51bbb60dc07da5b2e79f25e02209aa2eb72711ac Signed-off-by: Chaoyi Huang <joehuang@huawei.com>
75 lines
2.3 KiB
Python
Executable File
75 lines
2.3 KiB
Python
Executable File
# Copyright 2015 Huawei Technologies Co., Ltd.
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# 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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"""
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Client side of the job daemon RPC API.
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"""
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from oslo_config import cfg
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from oslo_log import log as logging
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import oslo_messaging as messaging
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import rpc
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from serializer import TricircleSerializer as Serializer
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import topics
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CONF = cfg.CONF
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rpcapi_cap_opt = cfg.StrOpt('xjobapi',
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default='1.0',
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help='Set a version cap for messages sent to the'
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'xjob api in any service')
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CONF.register_opt(rpcapi_cap_opt, 'upgrade_levels')
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LOG = logging.getLogger(__name__)
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class XJobAPI(object):
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"""Client side of the xjob rpc API.
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API version history:
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* 1.0 - Initial version.
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"""
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VERSION_ALIASES = {
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'mitaka': '1.0',
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}
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def __init__(self):
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super(XJobAPI, self).__init__()
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rpc.init(CONF)
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target = messaging.Target(topic=topics.TOPIC_XJOB, version='1.0')
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upgrade_level = CONF.upgrade_levels.xjobapi
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version_cap = 1.0
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if upgrade_level == 'auto':
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version_cap = self._determine_version_cap(target)
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else:
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version_cap = self.VERSION_ALIASES.get(upgrade_level,
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upgrade_level)
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serializer = Serializer()
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self.client = rpc.get_client(target,
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version_cap=version_cap,
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serializer=serializer)
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# to do the version compatibility for future purpose
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def _determine_version_cap(self, target):
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version_cap = 1.0
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return version_cap
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def test_rpc(self, ctxt, payload):
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return self.client.call(ctxt, 'test_rpc', payload=payload)
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