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44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from typing import Optional
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from synapse.storage.data_stores.main.cache import CacheInvalidationWorkerStore
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from synapse.storage.database import Database
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from synapse.storage.engines import PostgresEngine
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from synapse.storage.util.id_generators import MultiWriterIdGenerator
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logger = logging.getLogger(__name__)
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class BaseSlavedStore(CacheInvalidationWorkerStore):
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def __init__(self, database: Database, db_conn, hs):
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super(BaseSlavedStore, self).__init__(database, db_conn, hs)
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if isinstance(self.database_engine, PostgresEngine):
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self._cache_id_gen = MultiWriterIdGenerator(
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db_conn,
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database,
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instance_name=hs.get_instance_name(),
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table="cache_invalidation_stream_by_instance",
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instance_column="instance_name",
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id_column="stream_id",
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sequence_name="cache_invalidation_stream_seq",
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) # type: Optional[MultiWriterIdGenerator]
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else:
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self._cache_id_gen = None
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self.hs = hs
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