blob: 4939b03b017c13a2c8ee132a92a2110c2edcfe03 (
plain)
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
81
82
83
84
|
require 'mauve/mauve_thread'
require 'mauve/notifiers'
module Mauve
# The Notifier is reponsible for popping notifications off the
# notification_buffer run by the Mauve::Server instance. This ensures that
# notifications are sent in a separate thread to the main processing /
# updating threads, and stops notifications delaying updates.
#
#
class Notifier < MauveThread
include Singleton
# Stop the notifier thread. This just makes sure that all the
# notifications in the buffer have been sent.
#
def stop
super
#
# Flush the queue.
#
main_loop
end
#
# This sends the notification for an alert
#
def notify(alert, at)
#
# Make sure we're looking at a fresh copy of the alert.
#
alert.reload
#
# Forces alert-group to be re-evaluated on notification.
#
alert.cached_alert_group = nil
this_alert_group = alert.alert_group
#
# This saves without callbacks if the cached_alert_group has been
# altered.
#
alert.save! if alert.dirty?
if this_alert_group.nil?
logger.warn "Could not notify for #{alert} since there are no matching alert groups"
else
this_alert_group.notify(alert, at)
end
end
private
# This is the main loop that is executed in the thread.
#
#
def main_loop
#
# Cycle through the buffer.
#
sz = Server.notification_buffer_size
logger.info "Sending #{sz} alerts" if sz > 0
#
# Empty the buffer, one notification at a time.
#
sz.times do
notify(*Server.notification_pop)
end
end
end
end
|
