Source code for pm4py.algo.discovery.powl.inductive.fall_through.tau_loop

'''
    PM4Py – A Process Mining Library for Python
Copyright (C) 2024 Process Intelligence Solutions UG (haftungsbeschränkt)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see this software project's root or
visit <https://www.gnu.org/licenses/>.

Website: https://processintelligence.solutions
Contact: info@processintelligence.solutions
'''

from collections import Counter
from typing import Optional, Dict, Any

from pm4py.algo.discovery.inductive.fall_through.tau_loop import TauLoopUVCL
from pm4py.algo.discovery.powl.inductive.fall_through.strict_tau_loop import (
    POWLStrictTauLoopUVCL,
)
from pm4py.util.compression import util as comut
from pm4py.util.compression.dtypes import UVCL




class POWLTauLoopUVCL(POWLStrictTauLoopUVCL, TauLoopUVCL):

    @classmethod
    def _get_projected_log(
        cls, log: UVCL, parameters: Optional[Dict[str, Any]] = None
    ) -> UVCL:
        start_activities = comut.get_start_activities(log)
        proj = Counter()
        for t in log:
            x = 0
            for i in range(1, len(t)):
                if t[i] in start_activities:
                    proj.update({t[x:i]: log[t]})
                    x = i
            proj.update({t[x: len(t)]: log[t]})
        return proj