49baf0311e
* Now if direct workflow graph doesn't have start tasks (ones with no inbound transitions) then an exception gets raised. * Refactoring workflow specifications: moving specification related method from direct workflow controller into workflow specification. * Implemented the mechanism of polymorphic DSL entities. At this point there's a hierarchy of specification classes to represent different types of workflow. * Specification validation logic is now explicitly split into two methods: validate_schema() and validate_semantics() where the second one is supposed to implement integrity checks and other more high-level rules that are impossible to define in JSON schema. * Other minor refactoring and style changes. Change-Id: I60937b77e39133e3b254fed574e6aec6aa402eb0
85 lines
2.8 KiB
Python
85 lines
2.8 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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from mistral.workbook import types
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from mistral.workbook.v2 import base
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from mistral.workbook.v2 import retry_policy
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RETRY_SCHEMA = retry_policy.RetrySpec.get_schema(includes=None)
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WAIT_BEFORE_SCHEMA = types.YAQL_OR_POSITIVE_INTEGER
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WAIT_AFTER_SCHEMA = types.YAQL_OR_POSITIVE_INTEGER
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TIMEOUT_SCHEMA = types.YAQL_OR_POSITIVE_INTEGER
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PAUSE_BEFORE_SCHEMA = types.YAQL_OR_BOOLEAN
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CONCURRENCY_SCHEMA = types.YAQL_OR_POSITIVE_INTEGER
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class PoliciesSpec(base.BaseSpec):
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# See http://json-schema.org
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_schema = {
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"type": "object",
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"properties": {
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"retry": RETRY_SCHEMA,
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"wait-before": WAIT_BEFORE_SCHEMA,
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"wait-after": WAIT_AFTER_SCHEMA,
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"timeout": TIMEOUT_SCHEMA,
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"pause-before": PAUSE_BEFORE_SCHEMA,
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"concurrency": CONCURRENCY_SCHEMA,
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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(PoliciesSpec, cls).get_schema(includes)
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def __init__(self, data):
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super(PoliciesSpec, self).__init__(data)
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self._retry = self._spec_property('retry', retry_policy.RetrySpec)
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self._wait_before = data.get('wait-before', 0)
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self._wait_after = data.get('wait-after', 0)
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self._timeout = data.get('timeout', 0)
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self._pause_before = data.get('pause-before', False)
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self._concurrency = data.get('concurrency', 0)
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def validate_schema(self):
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super(PoliciesSpec, self).validate_schema()
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# Validate YAQL expressions.
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self.validate_yaql_expr(self._data.get('wait-before', 0))
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self.validate_yaql_expr(self._data.get('wait-after', 0))
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self.validate_yaql_expr(self._data.get('timeout', 0))
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self.validate_yaql_expr(self._data.get('pause-before', False))
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self.validate_yaql_expr(self._data.get('concurrency', 0))
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def get_retry(self):
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return self._retry
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def get_wait_before(self):
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return self._wait_before
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def get_wait_after(self):
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return self._wait_after
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def get_timeout(self):
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return self._timeout
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def get_pause_before(self):
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return self._pause_before
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def get_concurrency(self):
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return self._concurrency
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