First implementation of the xep_0323 and xep_325 used in IoT systems. Tests are added for stanza and streams

sleekxmpp/plugins/xep_0323/timerreset.py

@@ -0,0 +1,64 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of xeps for Internet of Things
+    http://wiki.xmpp.org/web/Tech_pages/IoT_systems
+    Copyright (C) 2013 Sustainable Innovation, Joachim.lindborg@sust.se, bjorn.westrom@consoden.se
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+from threading import Thread, Event, Timer
+import time
+
+def TimerReset(*args, **kwargs):
+    """ Global function for Timer """
+    return _TimerReset(*args, **kwargs)
+
+
+class _TimerReset(Thread):
+    """Call a function after a specified number of seconds:
+
+    t = TimerReset(30.0, f, args=[], kwargs={})
+    t.start()
+    t.cancel() # stop the timer's action if it's still waiting
+    """
+
+    def __init__(self, interval, function, args=[], kwargs={}):
+        Thread.__init__(self)
+        self.interval = interval
+        self.function = function
+        self.args = args
+        self.kwargs = kwargs
+        self.finished = Event()
+        self.resetted = True
+
+    def cancel(self):
+        """Stop the timer if it hasn't finished yet"""
+        self.finished.set()
+
+    def run(self):
+        #print "Time: %s - timer running..." % time.asctime()
+
+        while self.resetted:
+            #print "Time: %s - timer waiting for timeout in %.2f..." % (time.asctime(), self.interval)
+            self.resetted = False
+            self.finished.wait(self.interval)
+
+        if not self.finished.isSet():
+            self.function(*self.args, **self.kwargs)
+        self.finished.set()
+        #print "Time: %s - timer finished!" % time.asctime()
+
+    def reset(self, interval=None):
+        """ Reset the timer """
+
+        if interval:
+            #print "Time: %s - timer resetting to %.2f..." % (time.asctime(), interval)
+            self.interval = interval
+        else:
+            #print "Time: %s - timer resetting..." % time.asctime()
+            pass
+
+        self.resetted = True
+        self.finished.set()
+        self.finished.clear()