e278571b1b
There's no need to use that function for the purpose of calculating indentation. This patch is supplementary to the previouse patch[1], which I have wrongly pressed workflow+1 button to have it merged. Please see my comments there. Fix the wrong indentation of workflow definition as well. [1]: https://review.openstack.org/#/c/225559/ Change-Id: I8daac2f81989cff83abcb01096bdf84eae5d89eb
159 lines
4.1 KiB
Python
159 lines
4.1 KiB
Python
# Copyright 2013 - Mirantis, Inc.
|
|
# Copyright 2015 - StackStorm, 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.
|
|
|
|
import yaml
|
|
from yaml import error
|
|
|
|
import six
|
|
|
|
from mistral import exceptions as exc
|
|
from mistral.workbook import base
|
|
from mistral.workbook.v2 import actions as actions_v2
|
|
from mistral.workbook.v2 import tasks as tasks_v2
|
|
from mistral.workbook.v2 import workbook as wb_v2
|
|
from mistral.workbook.v2 import workflows as wf_v2
|
|
|
|
V2_0 = '2.0'
|
|
|
|
ALL_VERSIONS = [V2_0]
|
|
|
|
|
|
def parse_yaml(text):
|
|
"""Loads a text in YAML format as dictionary object.
|
|
|
|
:param text: YAML text.
|
|
:return: Parsed YAML document as dictionary.
|
|
"""
|
|
|
|
try:
|
|
return yaml.safe_load(text) or {}
|
|
except error.YAMLError as e:
|
|
raise exc.DSLParsingException(
|
|
"Definition could not be parsed: %s\n" % e
|
|
)
|
|
|
|
|
|
def _get_spec_version(spec_dict):
|
|
# If version is not specified it will '2.0' by default.
|
|
ver = V2_0
|
|
|
|
if 'version' in spec_dict:
|
|
ver = spec_dict['version']
|
|
|
|
if not ver or str(float(ver)) not in ALL_VERSIONS:
|
|
raise exc.DSLParsingException('Unsupported DSL version: %s' % ver)
|
|
|
|
return ver
|
|
|
|
|
|
# Factory methods to get specifications either from raw YAML formatted text or
|
|
# from dictionaries parsed from YAML formatted text.
|
|
|
|
|
|
def get_workbook_spec(spec_dict):
|
|
if _get_spec_version(spec_dict) == V2_0:
|
|
return base.instantiate_spec(wb_v2.WorkbookSpec, spec_dict)
|
|
|
|
return None
|
|
|
|
|
|
def get_workbook_spec_from_yaml(text):
|
|
return get_workbook_spec(parse_yaml(text))
|
|
|
|
|
|
def get_action_spec(spec_dict):
|
|
if _get_spec_version(spec_dict) == V2_0:
|
|
return base.instantiate_spec(actions_v2.ActionSpec, spec_dict)
|
|
|
|
return None
|
|
|
|
|
|
def get_action_spec_from_yaml(text, action_name):
|
|
spec_dict = parse_yaml(text)
|
|
|
|
spec_dict['name'] = action_name
|
|
|
|
return get_action_spec(spec_dict)
|
|
|
|
|
|
def get_action_list_spec(spec_dict):
|
|
return base.instantiate_spec(actions_v2.ActionListSpec, spec_dict)
|
|
|
|
|
|
def get_action_list_spec_from_yaml(text):
|
|
return get_action_list_spec(parse_yaml(text))
|
|
|
|
|
|
def get_workflow_spec(spec_dict):
|
|
if _get_spec_version(spec_dict) == V2_0:
|
|
return base.instantiate_spec(wf_v2.WorkflowSpec, spec_dict)
|
|
|
|
return None
|
|
|
|
|
|
def get_workflow_list_spec(spec_dict):
|
|
return base.instantiate_spec(wf_v2.WorkflowListSpec, spec_dict)
|
|
|
|
|
|
def get_workflow_spec_from_yaml(text):
|
|
return get_workflow_spec(parse_yaml(text))
|
|
|
|
|
|
def get_workflow_list_spec_from_yaml(text):
|
|
return get_workflow_list_spec(parse_yaml(text))
|
|
|
|
|
|
def get_task_spec(spec_dict):
|
|
if _get_spec_version(spec_dict) == V2_0:
|
|
return base.instantiate_spec(tasks_v2.TaskSpec, spec_dict)
|
|
|
|
return None
|
|
|
|
|
|
def get_workflow_definition(wb_def, wf_name):
|
|
wf_def = []
|
|
wf_name = wf_name + ":"
|
|
io = six.StringIO(wb_def[wb_def.index("workflows:"):])
|
|
io.readline()
|
|
ident = 0
|
|
|
|
# Get the indentation of the workflow name tag. (e.g. wf1:)
|
|
for line in io:
|
|
if wf_name == line.strip():
|
|
ident = line.index(wf_name)
|
|
wf_def.append(line.lstrip())
|
|
break
|
|
|
|
# Add strings to list unless same/less indentation is found.
|
|
for line in io:
|
|
new_line = line.strip()
|
|
|
|
if not new_line:
|
|
wf_def.append(line)
|
|
elif new_line.startswith("#"):
|
|
new_line = line if ident > line.index("#") else line[ident:]
|
|
wf_def.append(new_line)
|
|
else:
|
|
temp = line.index(line.lstrip())
|
|
if ident < temp:
|
|
wf_def.append(line[ident:])
|
|
else:
|
|
break
|
|
|
|
io.close()
|
|
wf_def = ''.join(wf_def).rstrip() + '\n'
|
|
|
|
return wf_def
|