Source code for pm4py.algo.discovery.powl.inductive.fall_through.empty_traces

from collections import Counter
from multiprocessing import Pool, Manager
from typing import Tuple, List, Optional, Dict, Any

from pm4py.algo.discovery.inductive.dtypes.im_ds import IMDataStructureUVCL
from pm4py.algo.discovery.inductive.fall_through.empty_traces import (
    EmptyTracesUVCL,
)
from pm4py.objects.powl.obj import OperatorPOWL
from pm4py.objects.process_tree.obj import Operator
from copy import copy




[docs]
class POWLEmptyTracesUVCL(EmptyTracesUVCL):



[docs]
    @classmethod
    def apply(
        cls,
        obj: IMDataStructureUVCL,
        pool: Pool = None,
        manager: Manager = None,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> Optional[Tuple[OperatorPOWL, List[IMDataStructureUVCL]]]:
        if cls.holds(obj, parameters):
            data_structure = copy(obj.data_structure)
            del data_structure[()]
            children = [
                IMDataStructureUVCL(Counter()),
                IMDataStructureUVCL(data_structure),
            ]
            return OperatorPOWL(Operator.XOR, children), children
        else:
            return None