diff options
Diffstat (limited to 'synapse/storage/state.py')
| -rw-r--r-- | synapse/storage/state.py | 128 |
1 files changed, 93 insertions, 35 deletions
diff --git a/synapse/storage/state.py b/synapse/storage/state.py index 0e8fa93e1f..ec551b0b4f 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -44,11 +44,7 @@ class StateStore(SQLBaseStore): """ @defer.inlineCallbacks - def get_state_groups(self, room_id, event_ids): - """ Get the state groups for the given list of event_ids - - The return value is a dict mapping group names to lists of events. - """ + def get_state_groups_ids(self, room_id, event_ids): if not event_ids: defer.returnValue({}) @@ -59,36 +55,64 @@ class StateStore(SQLBaseStore): groups = set(event_to_groups.values()) group_to_state = yield self._get_state_for_groups(groups) + defer.returnValue(group_to_state) + + @defer.inlineCallbacks + def get_state_groups(self, room_id, event_ids): + """ Get the state groups for the given list of event_ids + + The return value is a dict mapping group names to lists of events. + """ + if not event_ids: + defer.returnValue({}) + + group_to_ids = yield self.get_state_groups_ids(room_id, event_ids) + + state_event_map = yield self.get_events( + [ + ev_id for group_ids in group_to_ids.values() + for ev_id in group_ids.values() + ], + get_prev_content=False + ) + defer.returnValue({ - group: state_map.values() - for group, state_map in group_to_state.items() + group: [ + state_event_map[v] for v in event_id_map.values() if v in state_event_map + ] + for group, event_id_map in group_to_ids.items() }) + def _have_persisted_state_group_txn(self, txn, state_group): + txn.execute( + "SELECT count(*) FROM state_groups WHERE id = ?", + (state_group,) + ) + row = txn.fetchone() + return row and row[0] + def _store_mult_state_groups_txn(self, txn, events_and_contexts): state_groups = {} for event, context in events_and_contexts: if event.internal_metadata.is_outlier(): continue - if context.current_state is None: - continue - - if context.state_group is not None: - state_groups[event.event_id] = context.state_group + if context.current_state_ids is None: continue - state_events = dict(context.current_state) + state_groups[event.event_id] = context.state_group - if event.is_state(): - state_events[(event.type, event.state_key)] = event + if self._have_persisted_state_group_txn(txn, context.state_group): + logger.info("Already persisted state_group: %r", context.state_group) + continue - state_group = context.new_state_group_id + state_event_ids = dict(context.current_state_ids) self._simple_insert_txn( txn, table="state_groups", values={ - "id": state_group, + "id": context.state_group, "room_id": event.room_id, "event_id": event.event_id, }, @@ -99,16 +123,15 @@ class StateStore(SQLBaseStore): table="state_groups_state", values=[ { - "state_group": state_group, - "room_id": state.room_id, - "type": state.type, - "state_key": state.state_key, - "event_id": state.event_id, + "state_group": context.state_group, + "room_id": event.room_id, + "type": key[0], + "state_key": key[1], + "event_id": state_id, } - for state in state_events.values() + for key, state_id in state_event_ids.items() ], ) - state_groups[event.event_id] = state_group self._simple_insert_many_txn( txn, @@ -248,6 +271,31 @@ class StateStore(SQLBaseStore): groups = set(event_to_groups.values()) group_to_state = yield self._get_state_for_groups(groups, types) + state_event_map = yield self.get_events( + [ev_id for sd in group_to_state.values() for ev_id in sd.values()], + get_prev_content=False + ) + + event_to_state = { + event_id: { + k: state_event_map[v] + for k, v in group_to_state[group].items() + if v in state_event_map + } + for event_id, group in event_to_groups.items() + } + + defer.returnValue({event: event_to_state[event] for event in event_ids}) + + @defer.inlineCallbacks + def get_state_ids_for_events(self, event_ids, types): + event_to_groups = yield self._get_state_group_for_events( + event_ids, + ) + + groups = set(event_to_groups.values()) + group_to_state = yield self._get_state_for_groups(groups, types) + event_to_state = { event_id: group_to_state[group] for event_id, group in event_to_groups.items() @@ -272,6 +320,23 @@ class StateStore(SQLBaseStore): state_map = yield self.get_state_for_events([event_id], types) defer.returnValue(state_map[event_id]) + @defer.inlineCallbacks + def get_state_ids_for_event(self, event_id, types=None): + """ + Get the state dict corresponding to a particular event + + Args: + event_id(str): event whose state should be returned + types(list[(str, str)]|None): List of (type, state_key) tuples + which are used to filter the state fetched. May be None, which + matches any key + + Returns: + A deferred dict from (type, state_key) -> state_event + """ + state_map = yield self.get_state_ids_for_events([event_id], types) + defer.returnValue(state_map[event_id]) + @cached(num_args=2, max_entries=10000) def _get_state_group_for_event(self, room_id, event_id): return self._simple_select_one_onecol( @@ -428,20 +493,13 @@ class StateStore(SQLBaseStore): full=(types is None), ) - state_events = yield self._get_events( - [ev_id for sd in results.values() for ev_id in sd.values()], - get_prev_content=False - ) - - state_events = {e.event_id: e for e in state_events} - # Remove all the entries with None values. The None values were just # used for bookkeeping in the cache. for group, state_dict in results.items(): results[group] = { - key: state_events[event_id] + key: event_id for key, event_id in state_dict.items() - if event_id and event_id in state_events + if event_id } defer.returnValue(results) @@ -473,5 +531,5 @@ class StateStore(SQLBaseStore): "get_all_new_state_groups", get_all_new_state_groups_txn ) - def get_state_stream_token(self): - return self._state_groups_id_gen.get_current_token() + def get_next_state_group(self): + return self._state_groups_id_gen.get_next() |