# Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
[docs]
class Aggregator:
def __init__(self, initial_value=0):
self.initial_value = initial_value
[docs]
def add(self, a, b):
return a + b
def _update_aggregation(self, gh_values, sample_bin_assignment, sample_id, aggr):
bin_id = sample_bin_assignment[sample_id]
sample_value = gh_values[sample_id]
current_value = aggr[bin_id]
if current_value == 0:
# avoid add since sample_value may be cypher-text!
aggr[bin_id] = sample_value
else:
aggr[bin_id] = self.add(current_value, sample_value)
[docs]
def aggregate(self, gh_values: list, sample_bin_assignment, num_bins, sample_ids):
aggr_result = [self.initial_value] * num_bins
if not sample_ids:
for sample_id in range(len(gh_values)):
self._update_aggregation(gh_values, sample_bin_assignment, sample_id, aggr_result)
else:
for sample_id in sample_ids:
self._update_aggregation(gh_values, sample_bin_assignment, sample_id, aggr_result)
return aggr_result