95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
# 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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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import importutils
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from karbor.common import constants
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from karbor import exception
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from karbor.services.protection.flows import delete as flow_delete
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from karbor.services.protection.flows import protect as flow_protect
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from karbor.services.protection.flows import restore as flow_restore
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workflow_opts = [
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cfg.StrOpt(
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'workflow_engine',
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default="karbor.services.protection.flows.workflow.TaskFlowEngine",
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help='The workflow engine provides *flow* and *task* interface')
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]
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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CONF.register_opts(workflow_opts)
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class Worker(object):
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def __init__(self, engine_path=None):
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super(Worker, self).__init__()
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try:
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self.workflow_engine = self._load_engine(engine_path)
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except Exception:
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LOG.error("load work flow engine failed")
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raise
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def _load_engine(self, engine_path):
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if not engine_path:
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engine_path = CONF.workflow_engine
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engine = importutils.import_object(engine_path)
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return engine
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def get_flow(self, context, operation_type, checkpoint, provider,
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**kwargs):
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if operation_type == constants.OPERATION_PROTECT:
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plan = kwargs.get('plan', None)
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protectable_registry = kwargs.get('protectable_registry', None)
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flow = flow_protect.get_flow(
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context,
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protectable_registry,
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self.workflow_engine,
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plan,
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provider,
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checkpoint,
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)
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elif operation_type == constants.OPERATION_RESTORE:
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restore = kwargs.get('restore')
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restore_auth = kwargs.get('restore_auth')
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flow = flow_restore.get_flow(
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context,
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self.workflow_engine,
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checkpoint,
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provider,
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restore,
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restore_auth,
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)
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elif operation_type == constants.OPERATION_DELETE:
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flow = flow_delete.get_flow(
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context,
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self.workflow_engine,
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checkpoint,
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provider,
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)
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else:
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raise exception.InvalidParameterValue(
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err='unknown operation type %s' % operation_type
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)
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return flow
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def run_flow(self, flow_engine):
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self.workflow_engine.run_engine(flow_engine)
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def flow_outputs(self, flow_engine, target=None):
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return self.workflow_engine.output(flow_engine, target=target)
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