diff options
Diffstat (limited to 'synapse/storage/databases/main/stream.py')
| -rw-r--r-- | synapse/storage/databases/main/stream.py | 82 |
1 files changed, 35 insertions, 47 deletions
diff --git a/synapse/storage/databases/main/stream.py b/synapse/storage/databases/main/stream.py index db20a3db30..92e96468b4 100644 --- a/synapse/storage/databases/main/stream.py +++ b/synapse/storage/databases/main/stream.py @@ -79,8 +79,8 @@ _EventDictReturn = namedtuple( def generate_pagination_where_clause( direction: str, column_names: Tuple[str, str], - from_token: Optional[Tuple[int, int]], - to_token: Optional[Tuple[int, int]], + from_token: Optional[Tuple[Optional[int], int]], + to_token: Optional[Tuple[Optional[int], int]], engine: BaseDatabaseEngine, ) -> str: """Creates an SQL expression to bound the columns by the pagination @@ -259,16 +259,14 @@ def filter_to_clause(event_filter: Optional[Filter]) -> Tuple[str, List[str]]: return " AND ".join(clauses), args -class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): +class StreamWorkerStore(EventsWorkerStore, SQLBaseStore, metaclass=abc.ABCMeta): """This is an abstract base class where subclasses must implement `get_room_max_stream_ordering` and `get_room_min_stream_ordering` which can be called in the initializer. """ - __metaclass__ = abc.ABCMeta - def __init__(self, database: DatabasePool, db_conn, hs: "HomeServer"): - super(StreamWorkerStore, self).__init__(database, db_conn, hs) + super().__init__(database, db_conn, hs) self._instance_name = hs.get_instance_name() self._send_federation = hs.should_send_federation() @@ -310,11 +308,11 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): async def get_room_events_stream_for_rooms( self, room_ids: Collection[str], - from_key: str, - to_key: str, + from_key: RoomStreamToken, + to_key: RoomStreamToken, limit: int = 0, order: str = "DESC", - ) -> Dict[str, Tuple[List[EventBase], str]]: + ) -> Dict[str, Tuple[List[EventBase], RoomStreamToken]]: """Get new room events in stream ordering since `from_key`. Args: @@ -333,9 +331,9 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): - list of recent events in the room - stream ordering key for the start of the chunk of events returned. """ - from_id = RoomStreamToken.parse_stream_token(from_key).stream - - room_ids = self._events_stream_cache.get_entities_changed(room_ids, from_id) + room_ids = self._events_stream_cache.get_entities_changed( + room_ids, from_key.stream + ) if not room_ids: return {} @@ -364,16 +362,12 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): return results def get_rooms_that_changed( - self, room_ids: Collection[str], from_key: str + self, room_ids: Collection[str], from_key: RoomStreamToken ) -> Set[str]: """Given a list of rooms and a token, return rooms where there may have been changes. - - Args: - room_ids - from_key: The room_key portion of a StreamToken """ - from_id = RoomStreamToken.parse_stream_token(from_key).stream + from_id = from_key.stream return { room_id for room_id in room_ids @@ -383,11 +377,11 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): async def get_room_events_stream_for_room( self, room_id: str, - from_key: str, - to_key: str, + from_key: RoomStreamToken, + to_key: RoomStreamToken, limit: int = 0, order: str = "DESC", - ) -> Tuple[List[EventBase], str]: + ) -> Tuple[List[EventBase], RoomStreamToken]: """Get new room events in stream ordering since `from_key`. Args: @@ -408,8 +402,8 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): if from_key == to_key: return [], from_key - from_id = RoomStreamToken.parse_stream_token(from_key).stream - to_id = RoomStreamToken.parse_stream_token(to_key).stream + from_id = from_key.stream + to_id = to_key.stream has_changed = self._events_stream_cache.has_entity_changed(room_id, from_id) @@ -441,7 +435,7 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): ret.reverse() if rows: - key = "s%d" % min(r.stream_ordering for r in rows) + key = RoomStreamToken(None, min(r.stream_ordering for r in rows)) else: # Assume we didn't get anything because there was nothing to # get. @@ -450,10 +444,10 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): return ret, key async def get_membership_changes_for_user( - self, user_id: str, from_key: str, to_key: str + self, user_id: str, from_key: RoomStreamToken, to_key: RoomStreamToken ) -> List[EventBase]: - from_id = RoomStreamToken.parse_stream_token(from_key).stream - to_id = RoomStreamToken.parse_stream_token(to_key).stream + from_id = from_key.stream + to_id = to_key.stream if from_key == to_key: return [] @@ -491,8 +485,8 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): return ret async def get_recent_events_for_room( - self, room_id: str, limit: int, end_token: str - ) -> Tuple[List[EventBase], str]: + self, room_id: str, limit: int, end_token: RoomStreamToken + ) -> Tuple[List[EventBase], RoomStreamToken]: """Get the most recent events in the room in topological ordering. Args: @@ -518,8 +512,8 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): return (events, token) async def get_recent_event_ids_for_room( - self, room_id: str, limit: int, end_token: str - ) -> Tuple[List[_EventDictReturn], str]: + self, room_id: str, limit: int, end_token: RoomStreamToken + ) -> Tuple[List[_EventDictReturn], RoomStreamToken]: """Get the most recent events in the room in topological ordering. Args: @@ -535,8 +529,6 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): if limit == 0: return [], end_token - end_token = RoomStreamToken.parse(end_token) - rows, token = await self.db_pool.runInteraction( "get_recent_event_ids_for_room", self._paginate_room_events_txn, @@ -619,17 +611,17 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): allow_none=allow_none, ) - async def get_stream_token_for_event(self, event_id: str) -> str: + async def get_stream_token_for_event(self, event_id: str) -> RoomStreamToken: """The stream token for an event Args: event_id: The id of the event to look up a stream token for. Raises: StoreError if the event wasn't in the database. Returns: - A "s%d" stream token. + A stream token. """ stream_id = await self.get_stream_id_for_event(event_id) - return "s%d" % (stream_id,) + return RoomStreamToken(None, stream_id) async def get_topological_token_for_event(self, event_id: str) -> str: """The stream token for an event @@ -951,7 +943,7 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): direction: str = "b", limit: int = -1, event_filter: Optional[Filter] = None, - ) -> Tuple[List[_EventDictReturn], str]: + ) -> Tuple[List[_EventDictReturn], RoomStreamToken]: """Returns list of events before or after a given token. Args: @@ -986,8 +978,8 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): bounds = generate_pagination_where_clause( direction=direction, column_names=("topological_ordering", "stream_ordering"), - from_token=from_token, - to_token=to_token, + from_token=from_token.as_tuple(), + to_token=to_token.as_tuple() if to_token else None, engine=self.database_engine, ) @@ -1051,17 +1043,17 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): # TODO (erikj): We should work out what to do here instead. next_token = to_token if to_token else from_token - return rows, str(next_token) + return rows, next_token async def paginate_room_events( self, room_id: str, - from_key: str, - to_key: Optional[str] = None, + from_key: RoomStreamToken, + to_key: Optional[RoomStreamToken] = None, direction: str = "b", limit: int = -1, event_filter: Optional[Filter] = None, - ) -> Tuple[List[EventBase], str]: + ) -> Tuple[List[EventBase], RoomStreamToken]: """Returns list of events before or after a given token. Args: @@ -1080,10 +1072,6 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): and `to_key`). """ - from_key = RoomStreamToken.parse(from_key) - if to_key: - to_key = RoomStreamToken.parse(to_key) - rows, token = await self.db_pool.runInteraction( "paginate_room_events", self._paginate_room_events_txn, |