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

from abc import ABC
from typing import Generic, Optional, Dict, Any

from pm4py.algo.discovery.inductive.base_case.abc import BaseCase, T
from pm4py.algo.discovery.inductive.dtypes.im_ds import (
    IMDataStructureUVCL,
    IMDataStructureDFG,
)
from pm4py.objects.process_tree.obj import ProcessTree




[docs]
class EmptyLogBaseCase(BaseCase[T], ABC, Generic[T]):



[docs]
    @classmethod
    def leaf(
        cls, obj=T, parameters: Optional[Dict[str, Any]] = None
    ) -> ProcessTree:
        return ProcessTree()








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class EmptyLogBaseCaseUVCL(EmptyLogBaseCase[IMDataStructureUVCL]):



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








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class EmptyLogBaseCaseDFG(EmptyLogBaseCase[IMDataStructureDFG]):



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    @classmethod
    def holds(
        cls,
        obj=IMDataStructureDFG,
        parameters: Optional[Dict[str, Any]] = None,
    ):
        dfg = obj.dfg
        return (
            len(dfg.graph) == 0
            and len(dfg.start_activities) == 0
            and len(dfg.end_activities) == 0
        )