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

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# -*- coding: utf-8 -*-
# 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 synapse.storage import DataStore
from synapse.util.caches.stream_change_cache import StreamChangeCache
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from ._base import BaseSlavedStore, __func__
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from ._slaved_id_tracker import SlavedIdTracker
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class SlavedGroupServerStore(BaseSlavedStore):
def __init__(self, db_conn, hs):
super(SlavedGroupServerStore, self).__init__(db_conn, hs)
self.hs = hs
self._group_updates_id_gen = SlavedIdTracker(
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db_conn, "local_group_updates", "stream_id"
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)
self._group_updates_stream_cache = StreamChangeCache(
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"_group_updates_stream_cache",
self._group_updates_id_gen.get_current_token(),
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)
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get_groups_changes_for_user = __func__(DataStore.get_groups_changes_for_user)
get_group_stream_token = __func__(DataStore.get_group_stream_token)
get_all_groups_for_user = __func__(DataStore.get_all_groups_for_user)
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def stream_positions(self):
result = super(SlavedGroupServerStore, self).stream_positions()
result["groups"] = self._group_updates_id_gen.get_current_token()
return result
def process_replication_rows(self, stream_name, token, rows):
if stream_name == "groups":
self._group_updates_id_gen.advance(token)
for row in rows:
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self._group_updates_stream_cache.entity_has_changed(row.user_id, token)
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return super(SlavedGroupServerStore, self).process_replication_rows(
stream_name, token, rows
)