1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# 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 twisted.internet import defer
from synapse.types import StreamToken
from synapse.handlers.presence import PresenceEventSource
from synapse.handlers.room import RoomEventSource
from synapse.handlers.typing import TypingNotificationEventSource
class NullSource(object):
"""This event source never yields any events and its token remains at
zero. It may be useful for unit-testing."""
def __init__(self, hs):
pass
def get_new_events_for_user(self, user, from_key, limit):
return defer.succeed(([], from_key))
def get_current_key(self, direction='f'):
return defer.succeed(0)
def get_pagination_rows(self, user, pagination_config, key):
return defer.succeed(([], pagination_config.from_key))
class EventSources(object):
SOURCE_TYPES = {
"room": RoomEventSource,
"presence": PresenceEventSource,
"typing": TypingNotificationEventSource,
}
def __init__(self, hs):
self.sources = {
name: cls(hs)
for name, cls in EventSources.SOURCE_TYPES.items()
}
@defer.inlineCallbacks
def get_current_token(self, direction='f'):
token = StreamToken(
room_key=(
yield self.sources["room"].get_current_key(direction)
),
presence_key=(
yield self.sources["presence"].get_current_key()
),
typing_key=(
yield self.sources["typing"].get_current_key()
),
receipt_key="0",
)
defer.returnValue(token)
class StreamSource(object):
def get_new_events_for_user(self, user, from_key, limit):
"""from_key is the key within this event source."""
raise NotImplementedError("get_new_events_for_user")
def get_current_key(self):
raise NotImplementedError("get_current_key")
def get_pagination_rows(self, user, pagination_config, key):
raise NotImplementedError("get_rows")
|
