'''
This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).
PM4Py is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PM4Py 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with PM4Py. If not, see <https://www.gnu.org/licenses/>.
'''
from pm4py.objects.process_tree.obj import Operator
[docs]def fix_parent_pointers(pt):
"""
Ensures consistency to the parent pointers in the process tree
Parameters
--------------
pt
Process tree
"""
for child in pt.children:
child.parent = pt
if child.children:
fix_parent_pointers(child)
[docs]def fix_one_child_xor_flower(tree):
"""
Fixes a 1 child XOR that is added when single-activities flowers are found
Parameters
--------------
tree
Process tree
"""
if tree.parent is not None and tree.operator is Operator.XOR and len(tree.children) == 1:
for child in tree.children:
child.parent = tree.parent
tree.parent.children.append(child)
del tree.parent.children[tree.parent.children.index(tree)]
else:
for child in tree.children:
fix_one_child_xor_flower(child)