# 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 typing import Generator
from ..base import BaseMapRouter
from ...helper import batch_iterator
from ...proto import gnes_pb2
[docs]class PublishRouter(BaseMapRouter):
def __init__(self, num_part: int, *args, **kwargs):
super().__init__(*args, **kwargs)
self.num_part = num_part
[docs] def apply(self, msg: 'gnes_pb2.Message', *args, **kwargs) -> Generator:
msg.envelope.num_part.append(self.num_part)
yield msg
[docs]class DocBatchRouter(BaseMapRouter):
[docs] def apply(self, msg: 'gnes_pb2.Message', *args, **kwargs) -> Generator:
if self.batch_size and self.batch_size > 0:
batches = [b for b in batch_iterator(msg.request.index.docs, self.batch_size)]
num_part = len(batches)
for p_idx, b in enumerate(batches, start=1):
_msg = gnes_pb2.Message()
_msg.CopyFrom(msg)
_msg.request.index.ClearField('docs')
_msg.request.index.docs.extend(b)
_msg.envelope.part_id = p_idx
_msg.envelope.num_part.append(num_part)
yield _msg