synapse-product/synapse/replication/slave/storage/groups.py

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# Copyright 2016 OpenMarket Ltd
#
# 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 TYPE_CHECKING
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage._slaved_id_tracker import SlavedIdTracker
from synapse.replication.tcp.streams import GroupServerStream
from synapse.storage.database import DatabasePool, LoggingDatabaseConnection
from synapse.storage.databases.main.group_server import GroupServerWorkerStore
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from synapse.util.caches.stream_change_cache import StreamChangeCache
if TYPE_CHECKING:
from synapse.server import HomeServer
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class SlavedGroupServerStore(GroupServerWorkerStore, BaseSlavedStore):
def __init__(
self,
database: DatabasePool,
db_conn: LoggingDatabaseConnection,
hs: "HomeServer",
):
super().__init__(database, db_conn, hs)
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self.hs = hs
self._group_updates_id_gen = SlavedIdTracker(
db_conn, "local_group_updates", "stream_id"
)
self._group_updates_stream_cache = StreamChangeCache(
"_group_updates_stream_cache",
self._group_updates_id_gen.get_current_token(),
)
def get_group_stream_token(self):
return self._group_updates_id_gen.get_current_token()
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def process_replication_rows(self, stream_name, instance_name, token, rows):
if stream_name == GroupServerStream.NAME:
self._group_updates_id_gen.advance(instance_name, token)
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for row in rows:
self._group_updates_stream_cache.entity_has_changed(row.user_id, token)
return super().process_replication_rows(stream_name, instance_name, token, rows)