deb-mistral/mistral/engine/utils.py
Winson Chan 55540e116e Replace copy.copy with copy.deepcopy
The function copy.copy only copies reference and so if the object has dict
or nested dicts, these instances can be modified by code that has reference
to the original dict.

Change-Id: Ib2680f09b5a5d45fd7180e95ab5fedef05664c5b
Closes-Bug: #1503851
2015-10-07 19:55:31 +00:00

87 lines
2.7 KiB
Python

# Copyright 2014 - Mirantis, Inc.
# Copyright 2015 - Huawei Technologies Co. Ltd
#
# 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.
import copy
import six
from oslo_log import log as logging
from mistral.db.v2 import api as db_api
from mistral import exceptions as exc
from mistral import utils
LOG = logging.getLogger(__name__)
def validate_input(definition, input, spec=None):
input_param_names = copy.deepcopy(list((input or {}).keys()))
missing_param_names = []
spec_input = (spec.get_input() if spec else
utils.get_dict_from_string(definition.input))
for p_name, p_value in six.iteritems(spec_input):
if p_value is utils.NotDefined and p_name not in input_param_names:
missing_param_names.append(p_name)
if p_name in input_param_names:
input_param_names.remove(p_name)
if missing_param_names or input_param_names:
msg = 'Invalid input [name=%s, class=%s'
msg_props = [definition.name, spec.__class__.__name__]
if missing_param_names:
msg += ', missing=%s'
msg_props.append(missing_param_names)
if input_param_names:
msg += ', unexpected=%s'
msg_props.append(input_param_names)
msg += ']'
raise exc.InputException(
msg % tuple(msg_props)
)
else:
utils.merge_dicts(input, spec_input, overwrite=False)
def resolve_workflow_definition(parent_wf_name, parent_wf_spec_name,
wf_spec_name):
wf_def = None
if parent_wf_name != parent_wf_spec_name:
# If parent workflow belongs to a workbook then
# check child workflow within the same workbook
# (to be able to use short names within workbooks).
# If it doesn't exist then use a name from spec
# to find a workflow in DB.
wb_name = parent_wf_name.rstrip(parent_wf_spec_name)[:-1]
wf_full_name = "%s.%s" % (wb_name, wf_spec_name)
wf_def = db_api.load_workflow_definition(wf_full_name)
if not wf_def:
wf_def = db_api.load_workflow_definition(wf_spec_name)
if not wf_def:
raise exc.WorkflowException(
"Failed to find workflow [name=%s]" % wf_spec_name
)
return wf_def