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https://github.com/status-im/spiff-arena.git
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7c219fd731
git-subtree-dir: SpiffWorkflow git-subtree-split: 63db3e45947ec66b8d0efc2c74064004f8ff482c
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
from SpiffWorkflow.bpmn.exceptions import WorkflowTaskExecException
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from ...specs import Simple
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from ...bpmn.specs.BpmnSpecMixin import BpmnSpecMixin
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from ...util.deep_merge import DeepMerge
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class BusinessRuleTask(Simple, BpmnSpecMixin):
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"""
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Task Spec for a bpmn:businessTask (DMB Decision Reference) node.
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"""
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def _on_trigger(self, my_task):
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pass
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def __init__(self, wf_spec, name, dmnEngine, **kwargs):
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super().__init__(wf_spec, name, **kwargs)
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self.dmnEngine = dmnEngine
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self.res = None
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self.resDict = None
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@property
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def spec_class(self):
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return 'Business Rule Task'
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def _on_complete_hook(self, my_task):
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try:
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self.res = self.dmnEngine.decide(my_task)
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if self.res is not None: # it is conceivable that no rules fire.
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self.resDict = self.res.output_as_dict(my_task)
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my_task.data = DeepMerge.merge(my_task.data,self.resDict)
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super(BusinessRuleTask, self)._on_complete_hook(my_task)
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except Exception as e:
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raise WorkflowTaskExecException(my_task, str(e))
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def serialize(self, serializer):
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return serializer.serialize_business_rule_task(self)
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@classmethod
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def deserialize(self, serializer, wf_spec, s_state):
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return serializer.deserialize_business_rule_task(wf_spec, s_state)
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