deb-mistral/mistral/engine1/default_executor.py
Nikolay Mahotkin 7788748a09 Fix trace with wrong input for action
* Now we generate the message in case missing/wrong input
   send it to engine and save as task.output. We can see the
   error message from failed task.

Closes-bug: #1394037

Change-Id: I433d823cbaa6a8d75ef71c96a9485f5228462c66
2014-12-03 08:27:07 +00:00

78 lines
2.7 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 oslo.config import cfg
from mistral.actions import action_factory as a_f
from mistral.engine1 import base
from mistral import exceptions as exc
from mistral.openstack.common import log as logging
from mistral.utils import inspect_utils as i_u
from mistral.workflow import utils as wf_utils
LOG = logging.getLogger(__name__)
WORKFLOW_TRACE = logging.getLogger(cfg.CONF.workflow_trace_log_name)
class DefaultExecutor(base.Executor):
def __init__(self, engine_client):
self._engine_client = engine_client
def run_action(self, task_id, action_class_str, attributes, action_params):
"""Runs action.
:param task_id: Corresponding task id.
:param action_class_str: Path to action class in dot notation.
:param attributes: Attributes of action class which will be set to.
:param action_params: Action parameters.
"""
def send_error_to_engine(error_msg):
self._engine_client.on_task_result(
task_id, wf_utils.TaskResult(error=error_msg)
)
action_cls = a_f.construct_action_class(action_class_str, attributes)
try:
action = action_cls(**action_params)
result = action.run()
if action.is_sync():
self._engine_client.on_task_result(
task_id,
wf_utils.TaskResult(data=result)
)
return
except TypeError as e:
msg = ("Failed to initialize action %s. Action init params = %s."
" Actual init params = %s. More info: %s"
% (action_class_str, i_u.get_arg_list(action_cls.__init__),
action_params.keys(), e))
LOG.warn(msg)
except exc.ActionException as e:
msg = ("Failed to run action [task_id=%s, action_cls='%s',"
" params='%s']\n %s"
% (task_id, action_cls, action_params, e))
LOG.exception(msg)
except Exception as e:
msg = str(e)
# Send error info to engine.
send_error_to_engine(msg)