46 lines
1.8 KiB
Python
46 lines
1.8 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# TODO(rakhmerov): Deprecated in favor of package 'mistral.engine1'.
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from mistral import context as auth_context
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from mistral import engine
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from mistral.engine import executor
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from mistral.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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class DefaultEngine(engine.Engine):
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def _run_task(self, task_id, action_name, params):
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# TODO(rakhmerov):
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# This call outside of DB transaction creates a window
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# when the engine may crash and DB will not be consistent with
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# the task message queue state. Need to figure out the best
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# solution to recover from this situation.
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# However, making this call in DB transaction is really bad
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# since it makes transaction much longer in time and under load
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# may overload DB with open transactions.
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# TODO(m4dcoder): Use a pool for transport and client
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exctr = executor.ExecutorClient(self.transport)
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LOG.info("Submitted task for execution: '%s'" % task_id)
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exctr.handle_task(auth_context.ctx(),
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task_id=task_id,
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action_name=action_name,
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params=params)
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