72 lines
2.8 KiB
Python
72 lines
2.8 KiB
Python
# -*- 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.storage.presence import PresenceStore
|
|
from synapse.util.caches.stream_change_cache import StreamChangeCache
|
|
|
|
from ._base import BaseSlavedStore, __func__
|
|
from ._slaved_id_tracker import SlavedIdTracker
|
|
|
|
|
|
class SlavedPresenceStore(BaseSlavedStore):
|
|
def __init__(self, db_conn, hs):
|
|
super(SlavedPresenceStore, self).__init__(db_conn, hs)
|
|
self._presence_id_gen = SlavedIdTracker(
|
|
db_conn, "presence_stream", "stream_id",
|
|
)
|
|
|
|
self._presence_on_startup = self._get_active_presence(db_conn)
|
|
|
|
self.presence_stream_cache = self.presence_stream_cache = StreamChangeCache(
|
|
"PresenceStreamChangeCache", self._presence_id_gen.get_current_token()
|
|
)
|
|
|
|
_get_active_presence = __func__(DataStore._get_active_presence)
|
|
take_presence_startup_info = __func__(DataStore.take_presence_startup_info)
|
|
_get_presence_for_user = PresenceStore.__dict__["_get_presence_for_user"]
|
|
get_presence_for_users = PresenceStore.__dict__["get_presence_for_users"]
|
|
|
|
# XXX: This is a bit broken because we don't persist the accepted list in a
|
|
# way that can be replicated. This means that we don't have a way to
|
|
# invalidate the cache correctly.
|
|
get_presence_list_accepted = PresenceStore.__dict__[
|
|
"get_presence_list_accepted"
|
|
]
|
|
get_presence_list_observers_accepted = PresenceStore.__dict__[
|
|
"get_presence_list_observers_accepted"
|
|
]
|
|
|
|
def get_current_presence_token(self):
|
|
return self._presence_id_gen.get_current_token()
|
|
|
|
def stream_positions(self):
|
|
result = super(SlavedPresenceStore, self).stream_positions()
|
|
position = self._presence_id_gen.get_current_token()
|
|
result["presence"] = position
|
|
return result
|
|
|
|
def process_replication_rows(self, stream_name, token, rows):
|
|
if stream_name == "presence":
|
|
self._presence_id_gen.advance(token)
|
|
for row in rows:
|
|
self.presence_stream_cache.entity_has_changed(
|
|
row.user_id, token
|
|
)
|
|
self._get_presence_for_user.invalidate((row.user_id,))
|
|
return super(SlavedPresenceStore, self).process_replication_rows(
|
|
stream_name, token, rows
|
|
)
|