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c66a06ac6b
This is in preparation for having multiple data stores that offer different functionality, e.g. splitting out state or event storage.
61 lines
2.4 KiB
Python
61 lines
2.4 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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from synapse.storage import DataStore
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from synapse.storage.data_stores.main.presence import PresenceStore
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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 SlavedPresenceStore(BaseSlavedStore):
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def __init__(self, db_conn, hs):
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super(SlavedPresenceStore, self).__init__(db_conn, hs)
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self._presence_id_gen = SlavedIdTracker(db_conn, "presence_stream", "stream_id")
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self._presence_on_startup = self._get_active_presence(db_conn)
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self.presence_stream_cache = self.presence_stream_cache = StreamChangeCache(
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"PresenceStreamChangeCache", self._presence_id_gen.get_current_token()
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)
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_get_active_presence = __func__(DataStore._get_active_presence)
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take_presence_startup_info = __func__(DataStore.take_presence_startup_info)
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_get_presence_for_user = PresenceStore.__dict__["_get_presence_for_user"]
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get_presence_for_users = PresenceStore.__dict__["get_presence_for_users"]
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def get_current_presence_token(self):
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return self._presence_id_gen.get_current_token()
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def stream_positions(self):
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result = super(SlavedPresenceStore, self).stream_positions()
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if self.hs.config.use_presence:
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position = self._presence_id_gen.get_current_token()
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result["presence"] = position
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return result
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def process_replication_rows(self, stream_name, token, rows):
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if stream_name == "presence":
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self._presence_id_gen.advance(token)
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for row in rows:
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self.presence_stream_cache.entity_has_changed(row.user_id, token)
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self._get_presence_for_user.invalidate((row.user_id,))
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return super(SlavedPresenceStore, self).process_replication_rows(
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stream_name, token, rows
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)
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