112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
# Copyright 2013 - Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import yaml
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from yaml import error
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from mistral import exceptions as exc
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from mistral.workbook.v1 import actions as actions_v1
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from mistral.workbook.v1 import namespaces as ns_v1
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from mistral.workbook.v1 import tasks as tasks_v1
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from mistral.workbook.v1 import workbook as wb_v1
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from mistral.workbook.v1 import workflow as wf_v1
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from mistral.workbook.v2 import actions as actions_v2
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from mistral.workbook.v2 import namespaces as ns_v2
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from mistral.workbook.v2 import tasks as tasks_v2
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from mistral.workbook.v2 import workbook as wb_v2
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from mistral.workbook.v2 import workflows as wf_v2
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V1_0 = '1.0'
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V2_0 = '2.0'
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ALL_VERSIONS = [V1_0, V2_0]
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def parse_yaml(text):
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"""Loads a text in YAML format as dictionary object.
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:param text: YAML text.
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:return: Parsed YAML document as dictionary.
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"""
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try:
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return yaml.safe_load(text)
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except error.YAMLError as e:
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raise RuntimeError("Definition could not be parsed: %s\n" % e)
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def _get_spec_version(spec_dict):
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# If version is not specified it will '1.0' by default.
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ver = V1_0
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if 'Version' in spec_dict:
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ver = spec_dict['Version']
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elif 'version' in spec_dict:
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ver = spec_dict['version']
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if ver not in ALL_VERSIONS:
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raise exc.DSLParsingException('Unsupported DSL version: %s' % ver)
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return ver
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# Factory methods to get specifications either from raw YAML formatted text or
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# from dictionaries parsed from YAML formatted text.
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def get_workbook_spec(spec_dict):
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if _get_spec_version(spec_dict) == V1_0:
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return wb_v1.WorkbookSpec(spec_dict)
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else:
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return wb_v2.WorkbookSpec(spec_dict)
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def get_workbook_spec_from_yaml(text):
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spec_dict = parse_yaml(text)
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return get_workbook_spec(spec_dict)
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def get_namespace_spec(spec_dict):
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if _get_spec_version(spec_dict) == V1_0:
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return ns_v1.NamespaceSpec(spec_dict)
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else:
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return ns_v2.NamespaceSpec(spec_dict)
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def get_action_spec(spec_dict):
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if _get_spec_version(spec_dict) == V1_0:
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return actions_v1.ActionSpec(spec_dict)
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else:
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return actions_v2.ActionSpec(spec_dict)
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def get_workflow_spec(spec_dict):
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if _get_spec_version(spec_dict) == V1_0:
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return wf_v1.WorkflowSpec(spec_dict)
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else:
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return wf_v2.WorkflowSpec(spec_dict)
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def get_task_spec(spec_dict):
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if _get_spec_version(spec_dict) == V1_0:
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return tasks_v1.TaskSpec(spec_dict)
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else:
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return tasks_v2.TaskSpec(spec_dict)
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def get_trigger_spec(spec_dict):
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# TODO(rakhmerov): Implement.
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pass
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