362c2295e8
Allows to use Jinja instead of or along with YAQL for expression evaluation. * Improved error reporting on API endpoints. Previously, Mistral API tend to mute important logs related to errors during YAML parsing or expression evaluation. The messages were shown in the http response, but would not appear in logs. * Renamed yaql_utils to evaluation_utils and added few more tests to ensure evaluation functions can be safely reused between Jinja and YAQL evaluators. * Updated action_v2 example to reflect similarities between YAQL and Jinja syntax. Change-Id: Ie3cf8b4a6c068948d6dc051b12a02474689cf8a8 Implements: blueprint mistral-jinga-templates
116 lines
3.5 KiB
Python
116 lines
3.5 KiB
Python
# Copyright 2014 - Mirantis, Inc.
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# Copyright 2015 - StackStorm, 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 six
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from mistral.workbook import types
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from mistral.workbook.v2 import base
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from mistral.workbook.v2 import policies
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from mistral.workbook.v2 import tasks
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direct_wf_ts = tasks.DirectWorkflowTaskSpec
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class TaskDefaultsSpec(base.BaseSpec):
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# See http://json-schema.org
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_task_policies_schema = policies.PoliciesSpec.get_schema(
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includes=None)
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_on_clause_type = {
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"oneOf": [
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types.NONEMPTY_STRING,
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types.UNIQUE_STRING_OR_EXPRESSION_CONDITION_LIST
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]
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}
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_schema = {
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"type": "object",
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"properties": {
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"retry": policies.RETRY_SCHEMA,
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"wait-before": policies.WAIT_BEFORE_SCHEMA,
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"wait-after": policies.WAIT_AFTER_SCHEMA,
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"timeout": policies.TIMEOUT_SCHEMA,
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"pause-before": policies.PAUSE_BEFORE_SCHEMA,
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"concurrency": policies.CONCURRENCY_SCHEMA,
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"on-complete": _on_clause_type,
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"on-success": _on_clause_type,
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"on-error": _on_clause_type,
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"requires": {
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"oneOf": [types.NONEMPTY_STRING, types.UNIQUE_STRING_LIST]
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}
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},
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"additionalProperties": False
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}
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@classmethod
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def get_schema(cls, includes=['definitions']):
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return super(TaskDefaultsSpec, cls).get_schema(includes)
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def __init__(self, data):
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super(TaskDefaultsSpec, self).__init__(data)
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self._policies = self._group_spec(
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policies.PoliciesSpec,
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'retry',
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'wait-before',
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'wait-after',
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'timeout',
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'pause-before',
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'concurrency'
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)
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self._on_complete = direct_wf_ts.prepare_on_clause(
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self._as_list_of_tuples('on-complete')
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)
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self._on_success = direct_wf_ts.prepare_on_clause(
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self._as_list_of_tuples('on-success')
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)
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self._on_error = direct_wf_ts.prepare_on_clause(
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self._as_list_of_tuples('on-error')
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)
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self._requires = data.get('requires', [])
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def validate_schema(self):
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super(TaskDefaultsSpec, self).validate_schema()
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# Validate YAQL expressions.
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self._validate_transitions('on-complete')
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self._validate_transitions('on-success')
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self._validate_transitions('on-error')
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def _validate_transitions(self, on_clause):
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val = self._data.get(on_clause, [])
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[self.validate_expr(t)
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for t in ([val] if isinstance(val, six.string_types) else val)]
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def get_policies(self):
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return self._policies
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def get_on_complete(self):
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return self._on_complete
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def get_on_success(self):
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return self._on_success
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def get_on_error(self):
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return self._on_error
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def get_requires(self):
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if isinstance(self._requires, six.string_types):
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return [self._requires]
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return self._requires
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