Source code for pm4py.algo.filtering.ocel.object_attributes

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from enum import Enum
from pm4py.util import exec_utils, constants
from pm4py.objects.ocel.util import filtering_utils
from copy import copy
from typing import Dict, Any, Optional, Collection
from pm4py.objects.ocel.obj import OCEL

[docs]class Parameters(Enum): ATTRIBUTE_KEY = constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY POSITIVE = "positive"
[docs]def apply(ocel: OCEL, values: Collection[Any], parameters: Optional[Dict[Any, Any]] = None) -> OCEL: """ Filters the object-centric event log on the provided object attributes values Parameters ---------------- ocel Object-centric event log values Collection of values parameters Parameters of the algorithm, including: - Parameters.ATTRIBUTE_KEY => the attribute that should be filtered - Parameters.POSITIVE => decides if the values should be kept (positive=True) or removed (positive=False) Returns ---------------- ocel Filtered object-centric event log """ if parameters is None: parameters = {} attribute_key = exec_utils.get_param_value(Parameters.ATTRIBUTE_KEY, parameters, ocel.object_type_column) positive = exec_utils.get_param_value(Parameters.POSITIVE, parameters, True) ocel = copy(ocel) if positive: ocel.objects = ocel.objects[ocel.objects[attribute_key].isin(values)] else: ocel.objects = ocel.objects[~ocel.objects[attribute_key].isin(values)] return filtering_utils.propagate_object_filtering(ocel, parameters=parameters)