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Merge pull request #154 from matrix-org/erikj/events_move 

Move get_events functions to storage.events
pull/164/head
Mark Haines 2015-05-18 14:24:35 +01:00
parent 10be983f2c 10f1bdb9a2
commit 9396723995
2 changed files with 132 additions and 155 deletions
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155
synapse/storage/_base.py
View File

@ -15,8 +15,6 @@
import logging import logging
from synapse.api.errors import StoreError from synapse.api.errors import StoreError
from synapse.events import FrozenEvent
from synapse.events.utils import prune_event
from synapse.util.logutils import log_function from synapse.util.logutils import log_function
from synapse.util.logcontext import preserve_context_over_fn, LoggingContext from synapse.util.logcontext import preserve_context_over_fn, LoggingContext
from synapse.util.lrucache import LruCache from synapse.util.lrucache import LruCache
@ -28,7 +26,6 @@ from twisted.internet import defer
from collections import namedtuple, OrderedDict from collections import namedtuple, OrderedDict
import functools import functools
import simplejson as json
import sys import sys
import time import time
import threading import threading
@ -867,158 +864,6 @@ class SQLBaseStore(object):
return self.runInteraction("_simple_max_id", func) return self.runInteraction("_simple_max_id", func)
def _get_events(self, event_ids, check_redacted=True,
get_prev_content=False):
return self.runInteraction(
"_get_events", self._get_events_txn, event_ids,
check_redacted=check_redacted, get_prev_content=get_prev_content,
)
def _get_events_txn(self, txn, event_ids, check_redacted=True,
get_prev_content=False):
if not event_ids:
return []
events = [
self._get_event_txn(
txn, event_id,
check_redacted=check_redacted,
get_prev_content=get_prev_content
)
for event_id in event_ids
]
return [e for e in events if e]
def _invalidate_get_event_cache(self, event_id):
for check_redacted in (False, True):
for get_prev_content in (False, True):
self._get_event_cache.invalidate(event_id, check_redacted,
get_prev_content)
def _get_event_txn(self, txn, event_id, check_redacted=True,
get_prev_content=False, allow_rejected=False):
start_time = time.time() * 1000
def update_counter(desc, last_time):
curr_time = self._get_event_counters.update(desc, last_time)
sql_getevents_timer.inc_by(curr_time - last_time, desc)
return curr_time
try:
ret = self._get_event_cache.get(event_id, check_redacted, get_prev_content)
if allow_rejected or not ret.rejected_reason:
return ret
else:
return None
except KeyError:
pass
finally:
start_time = update_counter("event_cache", start_time)
sql = (
"SELECT e.internal_metadata, e.json, r.event_id, rej.reason "
"FROM event_json as e "
"LEFT JOIN redactions as r ON e.event_id = r.redacts "
"LEFT JOIN rejections as rej on rej.event_id = e.event_id "
"WHERE e.event_id = ? "
"LIMIT 1 "
)
txn.execute(sql, (event_id,))
res = txn.fetchone()
if not res:
return None
internal_metadata, js, redacted, rejected_reason = res
start_time = update_counter("select_event", start_time)
result = self._get_event_from_row_txn(
txn, internal_metadata, js, redacted,
check_redacted=check_redacted,
get_prev_content=get_prev_content,
rejected_reason=rejected_reason,
)
self._get_event_cache.prefill(event_id, check_redacted, get_prev_content, result)
if allow_rejected or not rejected_reason:
return result
else:
return None
def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
check_redacted=True, get_prev_content=False,
rejected_reason=None):
start_time = time.time() * 1000
def update_counter(desc, last_time):
curr_time = self._get_event_counters.update(desc, last_time)
sql_getevents_timer.inc_by(curr_time - last_time, desc)
return curr_time
d = json.loads(js)
start_time = update_counter("decode_json", start_time)
internal_metadata = json.loads(internal_metadata)
start_time = update_counter("decode_internal", start_time)
ev = FrozenEvent(
d,
internal_metadata_dict=internal_metadata,
rejected_reason=rejected_reason,
)
start_time = update_counter("build_frozen_event", start_time)
if check_redacted and redacted:
ev = prune_event(ev)
ev.unsigned["redacted_by"] = redacted
# Get the redaction event.
because = self._get_event_txn(
txn,
redacted,
check_redacted=False
)
if because:
ev.unsigned["redacted_because"] = because
start_time = update_counter("redact_event", start_time)
if get_prev_content and "replaces_state" in ev.unsigned:
prev = self._get_event_txn(
txn,
ev.unsigned["replaces_state"],
get_prev_content=False,
)
if prev:
ev.unsigned["prev_content"] = prev.get_dict()["content"]
start_time = update_counter("get_prev_content", start_time)
return ev
def _parse_events(self, rows):
return self.runInteraction(
"_parse_events", self._parse_events_txn, rows
)
def _parse_events_txn(self, txn, rows):
event_ids = [r["event_id"] for r in rows]
return self._get_events_txn(txn, event_ids)
def _has_been_redacted_txn(self, txn, event):
sql = "SELECT event_id FROM redactions WHERE redacts = ?"
txn.execute(sql, (event.event_id,))
result = txn.fetchone()
return result[0] if result else None
def get_next_stream_id(self): def get_next_stream_id(self):
with self._next_stream_id_lock: with self._next_stream_id_lock:
i = self._next_stream_id i = self._next_stream_id

132
synapse/storage/events.py
View File

@ -17,6 +17,9 @@ from _base import SQLBaseStore, _RollbackButIsFineException
from twisted.internet import defer from twisted.internet import defer
from synapse.events import FrozenEvent
from synapse.events.utils import prune_event
from synapse.util.logutils import log_function from synapse.util.logutils import log_function
from synapse.api.constants import EventTypes from synapse.api.constants import EventTypes
from synapse.crypto.event_signing import compute_event_reference_hash from synapse.crypto.event_signing import compute_event_reference_hash
@ -26,6 +29,7 @@ from syutil.jsonutil import encode_canonical_json
from contextlib import contextmanager from contextlib import contextmanager
import logging import logging
import simplejson as json
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@ -393,3 +397,131 @@ class EventsStore(SQLBaseStore):
return self.runInteraction( return self.runInteraction(
"have_events", f, "have_events", f,
) )
def _get_events(self, event_ids, check_redacted=True,
get_prev_content=False):
return self.runInteraction(
"_get_events", self._get_events_txn, event_ids,
check_redacted=check_redacted, get_prev_content=get_prev_content,
)
def _get_events_txn(self, txn, event_ids, check_redacted=True,
get_prev_content=False):
if not event_ids:
return []
events = [
self._get_event_txn(
txn, event_id,
check_redacted=check_redacted,
get_prev_content=get_prev_content
)
for event_id in event_ids
]
return [e for e in events if e]
def _invalidate_get_event_cache(self, event_id):
for check_redacted in (False, True):
for get_prev_content in (False, True):
self._get_event_cache.invalidate(event_id, check_redacted,
get_prev_content)
def _get_event_txn(self, txn, event_id, check_redacted=True,
get_prev_content=False, allow_rejected=False):
try:
ret = self._get_event_cache.get(event_id, check_redacted, get_prev_content)
if allow_rejected or not ret.rejected_reason:
return ret
else:
return None
except KeyError:
pass
sql = (
"SELECT e.internal_metadata, e.json, r.event_id, rej.reason "
"FROM event_json as e "
"LEFT JOIN redactions as r ON e.event_id = r.redacts "
"LEFT JOIN rejections as rej on rej.event_id = e.event_id "
"WHERE e.event_id = ? "
"LIMIT 1 "
)
txn.execute(sql, (event_id,))
res = txn.fetchone()
if not res:
return None
internal_metadata, js, redacted, rejected_reason = res
result = self._get_event_from_row_txn(
txn, internal_metadata, js, redacted,
check_redacted=check_redacted,
get_prev_content=get_prev_content,
rejected_reason=rejected_reason,
)
self._get_event_cache.prefill(event_id, check_redacted, get_prev_content, result)
if allow_rejected or not rejected_reason:
return result
else:
return None
def _get_event_from_row_txn(self, txn, internal_metadata, js, redacted,
check_redacted=True, get_prev_content=False,
rejected_reason=None):
d = json.loads(js)
internal_metadata = json.loads(internal_metadata)
ev = FrozenEvent(
d,
internal_metadata_dict=internal_metadata,
rejected_reason=rejected_reason,
)
if check_redacted and redacted:
ev = prune_event(ev)
ev.unsigned["redacted_by"] = redacted
# Get the redaction event.
because = self._get_event_txn(
txn,
redacted,
check_redacted=False
)
if because:
ev.unsigned["redacted_because"] = because
if get_prev_content and "replaces_state" in ev.unsigned:
prev = self._get_event_txn(
txn,
ev.unsigned["replaces_state"],
get_prev_content=False,
)
if prev:
ev.unsigned["prev_content"] = prev.get_dict()["content"]
return ev
def _parse_events(self, rows):
return self.runInteraction(
"_parse_events", self._parse_events_txn, rows
)
def _parse_events_txn(self, txn, rows):
event_ids = [r["event_id"] for r in rows]
return self._get_events_txn(txn, event_ids)
def _has_been_redacted_txn(self, txn, event):
sql = "SELECT event_id FROM redactions WHERE redacts = ?"
txn.execute(sql, (event.event_id,))
result = txn.fetchone()
return result[0] if result else None