anonymousland-synapse/synapse/replication/slave/storage/devices.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.
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from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage._slaved_id_tracker import SlavedIdTracker
from synapse.storage.devices import DeviceWorkerStore
from synapse.storage.end_to_end_keys import EndToEndKeyWorkerStore
from synapse.util.caches.stream_change_cache import StreamChangeCache
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class SlavedDeviceStore(EndToEndKeyWorkerStore, DeviceWorkerStore, BaseSlavedStore):
def __init__(self, db_conn, hs):
super(SlavedDeviceStore, self).__init__(db_conn, hs)
self.hs = hs
self._device_list_id_gen = SlavedIdTracker(
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db_conn, "device_lists_stream", "stream_id"
)
device_list_max = self._device_list_id_gen.get_current_token()
self._device_list_stream_cache = StreamChangeCache(
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"DeviceListStreamChangeCache", device_list_max
)
self._device_list_federation_stream_cache = StreamChangeCache(
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"DeviceListFederationStreamChangeCache", device_list_max
)
def stream_positions(self):
result = super(SlavedDeviceStore, self).stream_positions()
result["device_lists"] = self._device_list_id_gen.get_current_token()
return result
def process_replication_rows(self, stream_name, token, rows):
if stream_name == "device_lists":
self._device_list_id_gen.advance(token)
for row in rows:
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self._invalidate_caches_for_devices(token, row.user_id, row.destination)
return super(SlavedDeviceStore, self).process_replication_rows(
stream_name, token, rows
)
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def _invalidate_caches_for_devices(self, token, user_id, destination):
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self._device_list_stream_cache.entity_has_changed(user_id, token)
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if destination:
self._device_list_federation_stream_cache.entity_has_changed(
destination, token
)
self._get_cached_devices_for_user.invalidate((user_id,))
self._get_cached_user_device.invalidate_many((user_id,))
self.get_device_list_last_stream_id_for_remote.invalidate((user_id,))