mistral/mistral/services/periodic.py

49 lines
1.7 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright 2013 - Mirantis, Inc.
#
# 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.
from mistral.openstack.common import log
from mistral.openstack.common import periodic_task
from mistral.openstack.common import threadgroup
from mistral import dsl
from mistral.db import api as db_api
from mistral.engine import engine
from mistral.services import scheduler as s
LOG = log.getLogger(__name__)
class MistralPeriodicTasks(periodic_task.PeriodicTasks):
@periodic_task.periodic_task(spacing=1, run_immediately=True)
def scheduler_events(self, ctx):
LOG.debug('Processing next Scheduler events.')
for event in s.get_next_events():
workbook = db_api.workbook_get(event['workbook_name'])
target_task = dsl.Parser(
workbook['definition']).get_event_task_name(event['name'])
engine.start_workflow_execution(workbook['name'], target_task)
s.set_next_execution_time(event)
def setup():
tg = threadgroup.ThreadGroup()
pt = MistralPeriodicTasks()
tg.add_dynamic_timer(
pt.run_periodic_tasks,
initial_delay=None,
periodic_interval_max=1,
context=None)