Source code for pm4py.objects.ocel.importer.csv.variants.pandas

from typing import Optional, Dict, Any

from pm4py.objects.ocel.obj import OCEL
from pm4py.objects.ocel.util import extended_table
from pm4py.objects.ocel.util import ocel_consistency
from enum import Enum
from pm4py.util import exec_utils, constants as pm4_constants, pandas_utils




[docs]
class Parameters(Enum):
    ENCODING = "encoding"






[docs]
def apply(
    file_path: str,
    objects_path: str = None,
    parameters: Optional[Dict[Any, Any]] = None,
) -> OCEL:
    """
    Imports an object-centric event log from a CSV file, using Pandas as backend

    Parameters
    -----------------
    file_path
        Path to the object-centric event log
    objects_path
        Optional path to a CSV file containing the objects dataframe
    parameters
        Parameters of the algorithm

    Returns
    ------------------
    ocel
        Object-centric event log
    """
    if parameters is None:
        parameters = {}

    encoding = exec_utils.get_param_value(Parameters.ENCODING, parameters, pm4_constants.DEFAULT_ENCODING)
    table = pandas_utils.read_csv(file_path, index_col=False, encoding=encoding, dtype=str)

    objects = None
    if objects_path is not None:
        objects = pandas_utils.read_csv(objects_path, index_col=False, encoding=encoding, dtype=str)

    ocel = extended_table.get_ocel_from_extended_table(
        table, objects, parameters=parameters
    )
    ocel = ocel_consistency.apply(ocel, parameters=parameters)

    return ocel