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Move resolve_events_with_store into StateResolutionHandler

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This commit is contained in:
Richard van der Hoff 2020-09-28 15:20:02 +01:00
parent c2bdf040aa
commit 937393abd8
2 changed files with 55 additions and 50 deletions
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13
synapse/handlers/federation.py
View file

@ -21,7 +21,7 @@ import itertools
import logging
from collections.abc import Container
from http import HTTPStatus
from typing import Dict, Iterable, List, Optional, Sequence, Tuple, Union
from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Sequence, Tuple, Union
import attr
from signedjson.key import decode_verify_key_bytes
@ -69,7 +69,7 @@ from synapse.replication.http.federation import (
ReplicationFederationSendEventsRestServlet,
ReplicationStoreRoomOnInviteRestServlet,
)
from synapse.state import StateResolutionStore, resolve_events_with_store
from synapse.state import StateResolutionStore
from synapse.storage.databases.main.events_worker import EventRedactBehaviour
from synapse.types import (
JsonDict,
@ -85,6 +85,9 @@ from synapse.util.retryutils import NotRetryingDestination
from synapse.util.stringutils import shortstr
from synapse.visibility import filter_events_for_server
if TYPE_CHECKING:
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
@ -116,7 +119,7 @@ class FederationHandler(BaseHandler):
rooms.
"""
def __init__(self, hs):
def __init__(self, hs: "HomeServer"):
super().__init__(hs)
self.hs = hs
@ -126,6 +129,7 @@ class FederationHandler(BaseHandler):
self.state_store = self.storage.state
self.federation_client = hs.get_federation_client()
self.state_handler = hs.get_state_handler()
self._state_resolution_handler = hs.get_state_resolution_handler()
self.server_name = hs.hostname
self.keyring = hs.get_keyring()
self.action_generator = hs.get_action_generator()
@ -381,8 +385,7 @@ class FederationHandler(BaseHandler):
event_map[x.event_id] = x
room_version = await self.store.get_room_version_id(room_id)
state_map = await resolve_events_with_store(
self.clock,
state_map = await self._state_resolution_handler.resolve_events_with_store(
room_id,
room_version,
state_maps,

92
synapse/state/__init__.py
View file

@ -449,8 +449,7 @@ class StateHandler:
state_map = {ev.event_id: ev for st in state_sets for ev in st}
with Measure(self.clock, "state._resolve_events"):
new_state = await resolve_events_with_store(
self.clock,
new_state = await self._state_resolution_handler.resolve_events_with_store(
event.room_id,
room_version,
state_set_ids,
@ -531,8 +530,7 @@ class StateResolutionHandler:
state_groups_histogram.observe(len(state_groups_ids))
with Measure(self.clock, "state._resolve_events"):
new_state = await resolve_events_with_store(
self.clock,
new_state = await self.resolve_events_with_store(
room_id,
room_version,
list(state_groups_ids.values()),
@ -552,6 +550,51 @@ class StateResolutionHandler:
return cache
def resolve_events_with_store(
self,
room_id: str,
room_version: str,
state_sets: Sequence[StateMap[str]],
event_map: Optional[Dict[str, EventBase]],
state_res_store: "StateResolutionStore",
) -> Awaitable[StateMap[str]]:
"""
Args:
room_id: the room we are working in
room_version: Version of the room
state_sets: List of dicts of (type, state_key) -> event_id,
which are the different state groups to resolve.
event_map:
a dict from event_id to event, for any events that we happen to
have in flight (eg, those currently being persisted). This will be
used as a starting point fof finding the state we need; any missing
events will be requested via state_map_factory.
If None, all events will be fetched via state_res_store.
state_res_store: a place to fetch events from
Returns:
a map from (type, state_key) to event_id.
"""
v = KNOWN_ROOM_VERSIONS[room_version]
if v.state_res == StateResolutionVersions.V1:
return v1.resolve_events_with_store(
room_id, state_sets, event_map, state_res_store.get_events
)
else:
return v2.resolve_events_with_store(
self.clock,
room_id,
room_version,
state_sets,
event_map,
state_res_store,
)
def _make_state_cache_entry(
new_state: StateMap[str], state_groups_ids: Dict[int, StateMap[str]]
@ -605,47 +648,6 @@ def _make_state_cache_entry(
)
def resolve_events_with_store(
clock: Clock,
room_id: str,
room_version: str,
state_sets: Sequence[StateMap[str]],
event_map: Optional[Dict[str, EventBase]],
state_res_store: "StateResolutionStore",
) -> Awaitable[StateMap[str]]:
"""
Args:
room_id: the room we are working in
room_version: Version of the room
state_sets: List of dicts of (type, state_key) -> event_id,
which are the different state groups to resolve.
event_map:
a dict from event_id to event, for any events that we happen to
have in flight (eg, those currently being persisted). This will be
used as a starting point fof finding the state we need; any missing
events will be requested via state_map_factory.
If None, all events will be fetched via state_res_store.
state_res_store: a place to fetch events from
Returns:
a map from (type, state_key) to event_id.
"""
v = KNOWN_ROOM_VERSIONS[room_version]
if v.state_res == StateResolutionVersions.V1:
return v1.resolve_events_with_store(
room_id, state_sets, event_map, state_res_store.get_events
)
else:
return v2.resolve_events_with_store(
clock, room_id, room_version, state_sets, event_map, state_res_store
)
@attr.s(slots=True)
class StateResolutionStore:
"""Interface that allows state resolution algorithms to access the database