diff options
Diffstat (limited to 'synapse/events/snapshot.py')
| -rw-r--r-- | synapse/events/snapshot.py | 100 |
1 files changed, 39 insertions, 61 deletions
diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py index acbcbeeced..27cd8a63ff 100644 --- a/synapse/events/snapshot.py +++ b/synapse/events/snapshot.py @@ -12,9 +12,9 @@ # 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 six import iteritems +import attr from frozendict import frozendict from twisted.internet import defer @@ -22,7 +22,8 @@ from twisted.internet import defer from synapse.logging.context import make_deferred_yieldable, run_in_background -class EventContext(object): +@attr.s(slots=True) +class EventContext: """ Attributes: state_group (int|None): state group id, if the state has been stored @@ -31,9 +32,6 @@ class EventContext(object): rejected (bool|str): A rejection reason if the event was rejected, else False - push_actions (list[(str, list[object])]): list of (user_id, actions) - tuples - prev_group (int): Previously persisted state group. ``None`` for an outlier. delta_ids (dict[(str, str), str]): Delta from ``prev_group``. @@ -42,6 +40,8 @@ class EventContext(object): prev_state_events (?): XXX: is this ever set to anything other than the empty list? + app_service: FIXME + _current_state_ids (dict[(str, str), str]|None): The current state map including the current event. None if outlier or we haven't fetched the state from DB yet. @@ -67,49 +67,33 @@ class EventContext(object): Only set when state has not been fetched yet. """ - __slots__ = [ - "state_group", - "rejected", - "prev_group", - "delta_ids", - "prev_state_events", - "app_service", - "_current_state_ids", - "_prev_state_ids", - "_prev_state_id", - "_event_type", - "_event_state_key", - "_fetching_state_deferred", - ] - - def __init__(self): - self.prev_state_events = [] - self.rejected = False - self.app_service = None + state_group = attr.ib(default=None) + rejected = attr.ib(default=False) + prev_group = attr.ib(default=None) + delta_ids = attr.ib(default=None) + prev_state_events = attr.ib(default=attr.Factory(list)) + app_service = attr.ib(default=None) + + _current_state_ids = attr.ib(default=None) + _prev_state_ids = attr.ib(default=None) + _prev_state_id = attr.ib(default=None) + + _event_type = attr.ib(default=None) + _event_state_key = attr.ib(default=None) + _fetching_state_deferred = attr.ib(default=None) @staticmethod def with_state( state_group, current_state_ids, prev_state_ids, prev_group=None, delta_ids=None ): - context = EventContext() - - # The current state including the current event - context._current_state_ids = current_state_ids - # The current state excluding the current event - context._prev_state_ids = prev_state_ids - context.state_group = state_group - - context._prev_state_id = None - context._event_type = None - context._event_state_key = None - context._fetching_state_deferred = defer.succeed(None) - - # A previously persisted state group and a delta between that - # and this state. - context.prev_group = prev_group - context.delta_ids = delta_ids - - return context + return EventContext( + current_state_ids=current_state_ids, + prev_state_ids=prev_state_ids, + state_group=state_group, + fetching_state_deferred=defer.succeed(None), + prev_group=prev_group, + delta_ids=delta_ids, + ) @defer.inlineCallbacks def serialize(self, event, store): @@ -157,24 +141,18 @@ class EventContext(object): Returns: EventContext """ - context = EventContext() - - # We use the state_group and prev_state_id stuff to pull the - # current_state_ids out of the DB and construct prev_state_ids. - context._prev_state_id = input["prev_state_id"] - context._event_type = input["event_type"] - context._event_state_key = input["event_state_key"] - - context._current_state_ids = None - context._prev_state_ids = None - context._fetching_state_deferred = None - - context.state_group = input["state_group"] - context.prev_group = input["prev_group"] - context.delta_ids = _decode_state_dict(input["delta_ids"]) - - context.rejected = input["rejected"] - context.prev_state_events = input["prev_state_events"] + context = EventContext( + # We use the state_group and prev_state_id stuff to pull the + # current_state_ids out of the DB and construct prev_state_ids. + prev_state_id=input["prev_state_id"], + event_type=input["event_type"], + event_state_key=input["event_state_key"], + state_group=input["state_group"], + prev_group=input["prev_group"], + delta_ids=_decode_state_dict(input["delta_ids"]), + rejected=input["rejected"], + prev_state_events=input["prev_state_events"], + ) app_service_id = input["app_service_id"] if app_service_id: |