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https://github.com/sartography/spiff-arena.git
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a3e8bcbd65
46d3de27f Merge pull request #267 from sartography/feature/dmn_collect_policy 2d5ca32d5 Support for the "COLLECT" hit policy. * DecisionTable constructor now expects a third argument (the HitPolicy) * DMNParser now checks for a hitPolicy attribute, but defaults ot "UNIQUE" as Camunda doesn't put another in there if Unique is selected. * DecisionTable deserializer will default to a hitPolicy of "UNIQUE" if not value is in the Json. git-subtree-dir: SpiffWorkflow git-subtree-split: 46d3de27ffbcaf60025f09d1cf04fcc7ee98658a
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
import os
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from lxml import etree
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from SpiffWorkflow.bpmn.PythonScriptEngine import Box
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from SpiffWorkflow.dmn.engine.DMNEngine import DMNEngine
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from SpiffWorkflow.dmn.parser.DMNParser import DMNParser, get_dmn_ns
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class Workflow:
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def __init__(self, script_engine):
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self.script_engine = script_engine
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self.outer_workflow = self
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self.spec = Box({'file': 'my_mock_file'})
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class TaskSpec:
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def __init__(self):
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self.name = "MockTestSpec"
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self.description = "Mock Test Spec"
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class Task:
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def __init__(self, script_engine, data):
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self.data = data
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self.workflow = Workflow(script_engine)
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self.task_spec = TaskSpec()
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class DecisionRunner:
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def __init__(self, script_engine, filename, path=''):
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self.script_engine = script_engine
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fn = os.path.join(os.path.dirname(__file__), path, 'data', filename)
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with open(fn) as fh:
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node = etree.parse(fh)
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self.dmnParser = DMNParser(None, node.getroot(), get_dmn_ns(node.getroot()))
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self.dmnParser.parse()
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decision = self.dmnParser.decision
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assert len(decision.decisionTables) == 1, \
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'Exactly one decision table should exist! (%s)' \
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% (len(decision.decisionTables))
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self.decision_table = decision.decisionTables[0]
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self.dmnEngine = DMNEngine(self.decision_table)
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def decide(self, context):
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"""Makes the rather ugly assumption that there is only one
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rule match for a decision - which was previously the case"""
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if not isinstance(context, dict):
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context = {'input': context}
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task = Task(self.script_engine, context)
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return self.dmnEngine.decide(task)[0]
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def result(self, context):
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task = Task(self.script_engine, context)
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return self.dmnEngine.result(task)
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