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Shuffle persist event data store functions. (#7440)

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The aim here is to get to a stage where we have a `PersistEventStore` that holds all the write methods used during event persistence, so that we can take that class out of the `DataStore` mixin and instansiate it separately. This will allow us to instansiate it on processes other than master, while also ensuring it is only available on processes that are configured to write to events stream.

This is a bit of an architectural change, where we end up with multiple classes per data store (rather than one per data store we have now). We end up having:

1. Storage classes that provide high level APIs that can talk to multiple data stores.
2. Data store modules that consist of classes that must point at the same database instance.
3. Classes in a data store that can be instantiated on processes depending on config.
This commit is contained in:
Erik Johnston 2020-05-13 13:38:22 +01:00 • committed by GitHub
parent 7ee24c5674
commit 782e4e64df
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19 changed files with 1399 additions and 1258 deletions
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49
synapse/storage/data_stores/main/room.py
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@ -21,8 +21,6 @@ from abc import abstractmethod
from enum import Enum
from typing import Any, Dict, List, Optional, Tuple
from six import integer_types
from canonicaljson import json
from twisted.internet import defer
@ -1302,53 +1300,6 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore):
return self.db.runInteraction("get_rooms", f)
def _store_room_topic_txn(self, txn, event):
if hasattr(event, "content") and "topic" in event.content:
self.store_event_search_txn(
txn, event, "content.topic", event.content["topic"]
)
def _store_room_name_txn(self, txn, event):
if hasattr(event, "content") and "name" in event.content:
self.store_event_search_txn(
txn, event, "content.name", event.content["name"]
)
def _store_room_message_txn(self, txn, event):
if hasattr(event, "content") and "body" in event.content:
self.store_event_search_txn(
txn, event, "content.body", event.content["body"]
)
def _store_retention_policy_for_room_txn(self, txn, event):
if hasattr(event, "content") and (
"min_lifetime" in event.content or "max_lifetime" in event.content
):
if (
"min_lifetime" in event.content
and not isinstance(event.content.get("min_lifetime"), integer_types)
) or (
"max_lifetime" in event.content
and not isinstance(event.content.get("max_lifetime"), integer_types)
):
# Ignore the event if one of the value isn't an integer.
return
self.db.simple_insert_txn(
txn=txn,
table="room_retention",
values={
"room_id": event.room_id,
"event_id": event.event_id,
"min_lifetime": event.content.get("min_lifetime"),
"max_lifetime": event.content.get("max_lifetime"),
},
)
self._invalidate_cache_and_stream(
txn, self.get_retention_policy_for_room, (event.room_id,)
)
def add_event_report(
self, room_id, event_id, user_id, reason, content, received_ts
):