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require 'mauve/mauve_thread'
require 'mauve/notifiers'
require 'mauve/notifiers/xmpp'
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 before closing the XMPP
# connection.
#
def stop
super
#
# Flush the queue.
#
main_loop
if Configuration.current.notification_methods['xmpp']
Configuration.current.notification_methods['xmpp'].close
end
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
#
# Make sure we're connected to the XMPP server if needed on every iteration.
#
xmpp = Configuration.current.notification_methods['xmpp']
if xmpp and !xmpp.ready?
#
# Connect to XMPP server
#
xmpp.connect
#
# Join all chats and shit. Unless the connection failed.
#
Configuration.current.people.each do |username, person|
#
# Ignore people without XMPP stanzas.
#
next unless person.respond_to?(:xmpp) and person.xmpp
#
# For each JID, either ensure they're on our roster, or that we're in
# that chat room.
#
jid = if xmpp.is_muc?(person.xmpp)
xmpp.join_muc(person.xmpp)
else
xmpp.ensure_roster_and_subscription!(person.xmpp)
end
Configuration.current.people[username].xmpp = jid unless jid.nil?
end if xmpp.ready?
end
#
# 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
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