SleekXMPP/sleekxmpp/plugins/xep_0085/chat_states.py
Vijay Pandurangan 6f3cc77bb5 This change stops sleekxmpp from spending huge amounts of time unnecessarily computing logging data that may never be used. This is a HUGE performance improvement; in some of my test runs, unnecessary string creation was accounting for > 60% of all CPU time.
Note that using % in a string will _always_ perform the sting substitutions, because the strings are constructed before the function is called. So log.debug('%s' % expensiveoperation()) will take about the same CPU time whether or not the logging level is DEBUG or INFO. if you use , no substitutions are performed unless the string is actually logged
2011-11-19 11:30:44 -08:00

49 lines
1.4 KiB
Python

"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
This file is part of SleekXMPP.
See the file LICENSE for copying permissio
"""
import logging
import sleekxmpp
from sleekxmpp.stanza import Message
from sleekxmpp.xmlstream.handler import Callback
from sleekxmpp.xmlstream.matcher import StanzaPath
from sleekxmpp.xmlstream import register_stanza_plugin, ElementBase, ET
from sleekxmpp.plugins.base import base_plugin
from sleekxmpp.plugins.xep_0085 import stanza, ChatState
log = logging.getLogger(__name__)
class xep_0085(base_plugin):
"""
XEP-0085 Chat State Notifications
"""
def plugin_init(self):
self.xep = '0085'
self.description = 'Chat State Notifications'
self.stanza = stanza
for state in ChatState.states:
self.xmpp.register_handler(
Callback('Chat State: %s' % state,
StanzaPath('message@chat_state=%s' % state),
self._handle_chat_state))
register_stanza_plugin(Message, ChatState)
def post_init(self):
base_plugin.post_init(self)
self.xmpp.plugin['xep_0030'].add_feature(ChatState.namespace)
def _handle_chat_state(self, msg):
state = msg['chat_state']
log.debug("Chat State: %s, %s" , state, msg['from'].jid)
self.xmpp.event('chatstate_%s' % state, msg)