# Tencent is pleased to support the open source community by making GNES available.
#
# Copyright (C) 2019 THL A29 Limited, a Tencent company. 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.
from collections import defaultdict
from typing import List
from ..base import BaseReduceRouter
from ...proto import gnes_pb2
[docs]class ChunkToDocRouter(BaseReduceRouter):
[docs] def apply(self, msg: 'gnes_pb2.Message', accum_msgs: List['gnes_pb2.Message'], *args, **kwargs):
all_chunks = [r for m in accum_msgs for r in m.response.search.topk_results]
doc_score = defaultdict(float)
doc_score_explained = defaultdict(str)
# count score by iterating over chunks
for c in all_chunks:
doc_score[c.chunk.doc_id] += c.score
doc_score_explained[c.chunk.doc_id] += '%s\n' % c.score_explained
# now convert chunk results to doc results
msg.response.search.level = gnes_pb2.Response.QueryResponse.DOCUMENT_NOT_FILLED
msg.response.search.ClearField('topk_results')
# sort and add docs
for k, v in sorted(doc_score.items(), key=lambda kv: -kv[1]):
r = msg.response.search.topk_results.add()
r.doc.doc_id = k
r.score = v
r.score_explained = doc_score_explained[k]
super().apply(msg, accum_msgs)