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

from collections import Counter
from typing import Tuple, List, Optional, Dict, Any

from pm4py.algo.discovery.inductive.dtypes.im_ds import (
    IMDataStructureUVCL,
    IMDataStructureDFG,
)
from pm4py.algo.discovery.inductive.fall_through.abc import FallThrough
from pm4py.objects.process_tree.obj import ProcessTree, Operator
from pm4py.objects.dfg.obj import DFG
from pm4py.algo.discovery.inductive.dtypes.im_dfg import InductiveDFG
from copy import copy




[docs]
class EmptyTracesUVCL(FallThrough[IMDataStructureUVCL]):



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





[docs]
    @classmethod
    def holds(
        cls,
        obj: IMDataStructureUVCL,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> bool:
        return len(list(filter(lambda t: len(t) == 0, obj.data_structure))) > 0








[docs]
class EmptyTracesDFG(FallThrough[IMDataStructureDFG]):


[docs]
    @classmethod
    def apply(
        cls,
        obj: IMDataStructureDFG,
        pool=None,
        manager=None,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> Optional[Tuple[ProcessTree, List[IMDataStructureDFG]]]:
        if cls.holds(obj, parameters):
            return ProcessTree(operator=Operator.XOR), [
                IMDataStructureDFG(InductiveDFG(DFG())),
                IMDataStructureDFG(InductiveDFG(obj.data_structure.dfg)),
            ]
        return None





[docs]
    @classmethod
    def holds(
        cls,
        obj: IMDataStructureDFG,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> bool:
        return obj.data_structure.skip