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

from typing import Optional, Tuple, List, 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.algo.discovery.inductive.fall_through.empty_traces import (
    EmptyTracesUVCL,
)
from pm4py.objects.process_tree.obj import ProcessTree, Operator
from pm4py.util.compression import util as comut
from pm4py.util.compression.dtypes import UVCL
from pm4py.objects.dfg.obj import DFG
from pm4py.algo.discovery.inductive.dtypes.im_dfg import InductiveDFG




class FlowerModelUVCL(FallThrough[IMDataStructureUVCL]):



    @classmethod
    def holds(
        cls,
        obj: IMDataStructureUVCL,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> bool:
        return not EmptyTracesUVCL.holds(obj, parameters)




    @classmethod
    def apply(
        cls,
        obj: IMDataStructureUVCL,
        pool=None,
        manager=None,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> Optional[Tuple[ProcessTree, List[IMDataStructureUVCL]]]:
        log = obj.data_structure
        uvcl_do = UVCL()
        for a in sorted(list(comut.get_alphabet(log))):
            uvcl_do[(a,)] = 1
        uvcl_redo = UVCL()
        im_uvcl_do = IMDataStructureUVCL(uvcl_do)
        im_uvcl_redo = IMDataStructureUVCL(uvcl_redo)
        return ProcessTree(operator=Operator.LOOP), [im_uvcl_do, im_uvcl_redo]






class FlowerModelDFG(FallThrough[IMDataStructureDFG]):


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




    @classmethod
    def apply(
        cls,
        obj: IMDataStructureDFG,
        pool=None,
        manager=None,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> Optional[Tuple[ProcessTree, List[IMDataStructureDFG]]]:
        activities = (
            set(obj.dfg.start_activities)
            .union(set(obj.dfg.end_activities))
            .union(set(x[0] for x in obj.dfg.graph))
            .union(set(x[1] for x in obj.dfg.graph))
        )
        dfg_do = DFG()
        for a in activities:
            dfg_do.start_activities[a] = 1
            dfg_do.end_activities[a] = 1
        dfg_redo = DFG()
        im_dfg_do = IMDataStructureDFG(InductiveDFG(dfg_do))
        im_dfg_redo = IMDataStructureDFG(InductiveDFG(dfg_redo))
        return ProcessTree(operator=Operator.LOOP), [im_dfg_do, im_dfg_redo]