Source code for pm4py.algo.discovery.inductive.base_case.factory

from typing import List, TypeVar, Optional, Dict, Any

from pm4py.algo.discovery.inductive.base_case.abc import BaseCase
from pm4py.algo.discovery.inductive.base_case.empty_log import (
    EmptyLogBaseCaseUVCL,
    EmptyLogBaseCaseDFG,
)
from pm4py.algo.discovery.inductive.base_case.single_activity import (
    SingleActivityBaseCaseUVCL,
    SingleActivityBaseCaseDFG,
)
from pm4py.algo.discovery.inductive.dtypes.im_ds import (
    IMDataStructure,
    IMDataStructureUVCL,
    IMDataStructureDFG,
)
from pm4py.algo.discovery.inductive.variants.instances import IMInstance
from pm4py.objects.process_tree.obj import ProcessTree

T = TypeVar("T", bound=IMDataStructure)
S = TypeVar("S", bound=BaseCase)




class BaseCaseFactory:



    @classmethod
    def get_base_cases(
        cls,
        obj: T,
        inst: IMInstance,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> List[S]:
        if inst is IMInstance.IM or inst is IMInstance.IMf:
            if type(obj) is IMDataStructureUVCL:
                return [EmptyLogBaseCaseUVCL, SingleActivityBaseCaseUVCL]
        if inst is IMInstance.IMd:
            if type(obj) is IMDataStructureDFG:
                return [EmptyLogBaseCaseDFG, SingleActivityBaseCaseDFG]
        return []




    @classmethod
    def apply_base_cases(
        cls,
        obj: T,
        inst: IMInstance,
        parameters: Optional[Dict[str, Any]] = None,
    ) -> Optional[ProcessTree]:
        for b in BaseCaseFactory.get_base_cases(obj, inst):
            r = b.apply(obj, parameters)
            if r is not None:
                return r
        return None