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Implement presence event source. Change the way the notifier indexes listeners

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This commit is contained in:
Erik Johnston 2014-08-27 14:03:27 +01:00
parent 67c5f89244
commit bd16b93e8f
5 changed files with 107 additions and 80 deletions
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7
synapse/handlers/events.py
View file

@ -50,7 +50,12 @@ class EventStreamHandler(BaseHandler):
if pagin_config.from_token is None:
pagin_config.from_token = None
events, tokens = yield self.notifier.get_events_for(auth_user, pagin_config, timeout)
rm_handler = self.hs.get_handlers().room_member_handler
room_ids = yield rm_handler.get_rooms_for_user(auth_user)
events, tokens = yield self.notifier.get_events_for(
auth_user, room_ids, pagin_config, timeout
)
chunks = [
e.get_dict() if isinstance(e, SynapseEvent) else e

7
synapse/handlers/presence.py
View file

@ -676,12 +676,7 @@ class PresenceHandler(BaseHandler):
statuscache.make_event(user=observed_user, clock=self.clock)
self.notifier.on_new_user_event(
observer_user.to_string(),
event_data=statuscache.make_event(
user=observed_user,
clock=self.clock
),
store_id=statuscache.serial
[observer_user],
)

15
synapse/handlers/room.py
View file

@ -120,8 +120,11 @@ class MessageHandler(BaseHandler):
else:
from_token = yield self.hs.get_event_sources().get_current_token()
user = self.hs.parse_userid(user_id)
events, next_token = yield data_source.get_pagination_rows(
from_token, pagin_config.to_token, pagin_config.limit, room_id
user, from_token, pagin_config.to_token, pagin_config.limit,
room_id
)
chunk = {
@ -265,6 +268,8 @@ class MessageHandler(BaseHandler):
membership_list=[Membership.INVITE, Membership.JOIN]
)
user = self.hs.parse_userid(user_id)
rooms_ret = []
# FIXME (erikj): We need to not generate this token,
@ -272,8 +277,8 @@ class MessageHandler(BaseHandler):
# FIXME (erikj): Fix this.
presence_stream = self.hs.get_event_sources().sources[1]
presence = yield presence_stream.get_new_events_for_user(
user_id, now_token, None, None
presence, _ = yield presence_stream.get_pagination_rows(
user, now_token, None, None, None
)
limit = pagin_config.limit
@ -297,7 +302,7 @@ class MessageHandler(BaseHandler):
messages, token = yield self.store.get_recent_events_for_room(
event.room_id,
limit=limit,
end_token=now_token.events_key.to_string(),
end_token=now_token.events_key,
)
d["messages"] = {
@ -311,7 +316,7 @@ class MessageHandler(BaseHandler):
except:
logger.exception("Failed to get snapshot")
ret = {"rooms": rooms_ret, "presence": presence[0], "end": now_token.to_string()}
ret = {"rooms": rooms_ret, "presence": presence, "end": now_token.to_string()}
defer.returnValue(ret)

85
synapse/notifier.py
View file

@ -24,14 +24,14 @@ logger = logging.getLogger(__name__)
class _NotificationListener(object):
def __init__(self, user, from_token, limit, timeout, deferred):
def __init__(self, user, rooms, from_token, limit, timeout, deferred):
self.user = user
self.from_token = from_token
self.limit = limit
self.timeout = timeout
self.deferred = deferred
self.signal_key_list = []
self.rooms = rooms
self.pending_notifications = []
@ -43,36 +43,39 @@ class _NotificationListener(object):
except defer.AlreadyCalledError:
pass
for signal, key in self.signal_key_list:
lst = notifier.signal_keys_to_users.get((signal, key), [])
for room in self.rooms:
lst = notifier.rooms_to_listeners.get(room, set())
lst.discard(self)
notifier.user_to_listeners.get(self.user, set()).discard(self)
try:
lst.remove(self)
except:
pass
class Notifier(object):
def __init__(self, hs):
self.hs = hs
self.signal_keys_to_users = {}
self.rooms_to_listeners = {}
self.user_to_listeners = {}
self.event_sources = hs.get_event_sources()
hs.get_distributor().observe(
"user_joined_room", self._user_joined_room
)
@log_function
@defer.inlineCallbacks
def on_new_room_event(self, event, store_id):
def on_new_room_event(self, event, extra_users=[]):
room_id = event.room_id
source = self.event_sources.sources[0]
listeners = self.signal_keys_to_users.get(
(source.SIGNAL_NAME, room_id),
[]
)
listeners = self.rooms_to_listeners.get(room_id, set()).copy()
for user in extra_users:
listeners |= self.user_to_listeners.get(user, set()).copy()
logger.debug("on_new_room_event self.signal_keys_to_users %s", listeners)
logger.debug("on_new_room_event listeners %s", listeners)
# TODO (erikj): Can we make this more efficient by hitting the
@ -82,7 +85,6 @@ class Notifier(object):
listener.user,
listener.from_token,
listener.limit,
key=room_id,
)
if events:
@ -90,20 +92,23 @@ class Notifier(object):
self, events, listener.from_token, end_token
)
def on_new_user_event(self, *args, **kwargs):
@defer.inlineCallbacks
def on_new_user_event(self, users=[], rooms=[]):
source = self.event_sources.sources[1]
listeners = self.signal_keys_to_users.get(
(source.SIGNAL_NAME, "moose"),
[]
)
listeners = set()
for user in users:
listeners |= self.user_to_listeners.get(user, set()).copy()
for room in rooms:
listeners |= self.rooms_to_listeners.get(room, set()).copy()
for listener in listeners:
events, end_token = yield source.get_new_events_for_user(
listener.user,
listener.from_token,
listener.limit,
key="moose",
)
if events:
@ -111,23 +116,24 @@ class Notifier(object):
self, events, listener.from_token, end_token
)
def get_events_for(self, user, pagination_config, timeout):
def get_events_for(self, user, rooms, pagination_config, timeout):
deferred = defer.Deferred()
self._get_events(
deferred, user, pagination_config.from_token,
deferred, user, rooms, pagination_config.from_token,
pagination_config.limit, timeout
).addErrback(deferred.errback)
return deferred
@defer.inlineCallbacks
def _get_events(self, deferred, user, from_token, limit, timeout):
def _get_events(self, deferred, user, rooms, from_token, limit, timeout):
if not from_token:
from_token = yield self.event_sources.get_current_token()
listener = _NotificationListener(
user,
rooms,
from_token,
limit,
timeout,
@ -137,7 +143,7 @@ class Notifier(object):
if timeout:
reactor.callLater(timeout/1000, self._timeout_listener, listener)
yield self._register_with_keys(listener)
self._register_with_keys(listener)
yield self._check_for_updates(listener)
return
@ -152,25 +158,13 @@ class Notifier(object):
listener.from_token,
)
@defer.inlineCallbacks
@log_function
def _register_with_keys(self, listener):
signals_keys = {}
for room in listener.rooms:
s = self.rooms_to_listeners.setdefault(room, set())
s.add(listener)
# TODO (erikj): This can probably be replaced by a DeferredList
for source in self.event_sources.sources:
keys = yield source.get_keys_for_user(listener.user)
signals_keys.setdefault(source.SIGNAL_NAME, []).extend(keys)
for signal, keys in signals_keys.items():
for key in keys:
s = self.signal_keys_to_users.setdefault((signal, key), [])
s.append(listener)
listener.signal_key_list.append((signal, key))
logger.debug("New signal_keys_to_users: %s", self.signal_keys_to_users)
defer.returnValue(listener)
self.user_to_listeners.setdefault(listener.user, set()).add(listener)
@defer.inlineCallbacks
@log_function
@ -195,8 +189,13 @@ class Notifier(object):
end_token = from_token
if events:
listener.notify(self, events, listener.from_token, end_token)
defer.returnValue(listener)
def _user_joined_room(self, user, room_id):
new_listeners = self.user_to_listeners.get(user, set())
listeners = self.rooms_to_listeners.setdefault(room_id, set())
listeners |= new_listeners

73
synapse/streams/events.py
View file

@ -26,16 +26,7 @@ class RoomEventSource(object):
self.store = hs.get_datastore()
@defer.inlineCallbacks
def get_keys_for_user(self, user):
events = yield self.store.get_rooms_for_user_where_membership_is(
user.to_string(),
(Membership.JOIN,),
)
defer.returnValue(set([e.room_id for e in events]))
@defer.inlineCallbacks
def get_new_events_for_user(self, user, from_token, limit, key=None):
def get_new_events_for_user(self, user, from_token, limit):
# We just ignore the key for now.
to_key = yield self.get_current_token_part()
@ -56,7 +47,7 @@ class RoomEventSource(object):
return self.store.get_room_events_max_id()
@defer.inlineCallbacks
def get_pagination_rows(self, from_token, to_token, limit, key):
def get_pagination_rows(self, user, from_token, to_token, limit, key):
to_key = to_token.events_key if to_token else None
events, next_key = yield self.store.paginate_room_events(
@ -73,14 +64,14 @@ class RoomEventSource(object):
defer.returnValue((events, next_token))
class PresenceStreamSource(object):
SIGNAL_NAME = "PresenceStreamSource"
class PresenceSource(object):
SIGNAL_NAME = "PresenceSource"
def __init__(self, hs):
self.hs = hs
self.clock = hs.get_clock()
def get_new_events_for_user(self, user, from_token, limit, key=None):
def get_new_events_for_user(self, user, from_token, limit):
from_key = int(from_token.presence_key)
presence = self.hs.get_handlers().presence_handler
@ -97,7 +88,7 @@ class PresenceStreamSource(object):
data = [x[1].make_event(user=x[0], clock=clock) for x in updates]
end_token = from_token.copy_and_replace(
"presence_key", latest_serial + 1
"presence_key", latest_serial
)
return ((data, end_token))
else:
@ -106,18 +97,52 @@ class PresenceStreamSource(object):
)
return (([], end_token))
def get_keys_for_user(self, user):
return defer.succeed(["moose"])
def get_current_token_part(self):
presence = self.hs.get_handlers().presence_handler
return presence._user_cachemap_latest_serial
def get_pagination_rows(self, user, from_token, to_token, limit, key):
from_key = int(from_token.presence_key)
if to_token:
to_key = int(to_token.presence_key)
else:
to_key = -1
presence = self.hs.get_handlers().presence_handler
cachemap = presence._user_cachemap
# TODO(paul): limit, and filter by visibility
updates = [(k, cachemap[k]) for k in cachemap
if to_key < cachemap[k].serial < from_key]
if updates:
clock = self.clock
earliest_serial = max([x[1].serial for x in updates])
data = [x[1].make_event(user=x[0], clock=clock) for x in updates]
if to_token:
next_token = to_token
else:
next_token = from_token
next_token = next_token.copy_and_replace(
"presence_key", earliest_serial
)
return ((data, next_token))
else:
if not to_token:
to_token = from_token.copy_and_replace(
"presence_key", 0
)
return (([], to_token))
class EventSources(object):
SOURCE_TYPES = [
RoomEventSource,
PresenceStreamSource,
PresenceSource,
]
def __init__(self, hs):
@ -130,15 +155,13 @@ class EventSources(object):
@defer.inlineCallbacks
def get_current_token(self):
events_key = yield self.sources[0].get_current_token_part()
token = EventSources.create_token(events_key, "0")
presence_key = yield self.sources[1].get_current_token_part()
token = EventSources.create_token(events_key, presence_key)
defer.returnValue(token)
class StreamSource(object):
def get_keys_for_user(self, user):
raise NotImplementedError("get_keys_for_user")
def get_new_events_for_user(self, user, from_token, limit, key=None):
def get_new_events_for_user(self, user, from_token, limit):
raise NotImplementedError("get_new_events_for_user")
def get_current_token_part(self):
@ -146,6 +169,6 @@ class StreamSource(object):
class PaginationSource(object):
def get_pagination_rows(self, from_token, to_token, limit, key):
def get_pagination_rows(self, user, from_token, to_token, limit, key):
raise NotImplementedError("get_rows")