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BotEvents.py
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BotEvents.py
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### BotEvents.py contains various kinds of Event Handlers
### For the moment, only Timer and Message events are used
import time
import logging
from timeit import default_timer
class EventAlreadyExists(Exception):
def __init__(self, eventName):
self.name = eventName
def __str__(self):
return self.name
class ChannelAlreadyExists(Exception):
def __init__(self, chanName):
self.name = chanName
def __str__(self):
return self.name
class StandardEvent():
def __init__(self):
self.__events__ = {}
self.operationQueue = []
self.comes_from_event = False
self.__event_log__ = logging.getLogger("Event")
self.eventStats = {}
# New to addEvent: channel needs to be a list containing at least one channel name as string
# from_event is a deprecated variable and exists only for backwards compatibility
def addEvent(self, name, function, channel = [], from_event = False):
if self.comes_from_event == False:
self.__event_log__.debug("Adding event '%s' for channels '%s'", name, channel)
else:
self.__event_log__.debug("Adding event '%s' for channels '%s'; Used from inside an event", name, channel)
if not callable(function):
raise TypeError(str(function)+ " is not a callable function!")
elif name in self.__events__:
raise EventAlreadyExists(name)
else:
if not isinstance(channel, list):
raise TypeError(str(channel)+" is "+str(type(channel))+" but needs to be list!")
if self.comes_from_event == False:
self.__events__[name] = {"function" : function,
"channels" : list(channel),
"stats" : {"average" : None,
"min" : None,
"max" : None}}
else:
self.operationQueue.append(("add", name, function, channel))
def __execEvent__(self, eventName, commandHandler, *args, **kargs):
start = default_timer()
self.__events__[eventName]["function"](commandHandler, self.__events__[eventName]["channels"], *args, **kargs)
timeTaken = default_timer() - start
stats = self.__events__[eventName]["stats"]
if stats["average"] == None:
stats["average"] = timeTaken
stats["min"] = timeTaken
stats["max"] = timeTaken
else:
stats["average"] = (stats["average"]+timeTaken) / 2.0
if timeTaken < stats["min"]:
stats["min"] = timeTaken
if timeTaken > stats["max"]:
stats["max"] = timeTaken
# commandHandler is an instance of the commandHandler class
# it is necessary for calling some of the bot's functions, e.g. sendChatMessage
def tryAllEvents(self, commandHandler, *args, **kargs):
self.comes_from_event = True
for event in self.__events__:
self.__execEvent__(event, commandHandler, *args, **kargs)
self.comes_from_event = False
if len(self.operationQueue) > 0:
for i in range(len(self.operationQueue)):
oper = self.operationQueue.pop(0)
if oper[0] == "add":
name, function, channels = oper[1], oper[2], oper[3]
self.__events__[name] = {"function" : function,
"channels" : list(channels),
"stats" :{
"average" : None,
"min" : None,
"max" : None
}
}
elif oper[0] == "del":
name = oper[1]
del self.__events__[name]
else:
raise RuntimeError("Whaaat?!? It is neither add nor del? EXCEPTION")
def removeEvent(self, event, from_event = False):
if self.comes_from_event == False:
self.__event_log__.debug("Removing event '%s'", event)
else:
self.__event_log__.debug("Removing event '%s'; Used from inside an event", event)
if event in self.__events__:
if self.comes_from_event == False:
del self.__events__[event]
else:
self.operationQueue.append(("del", event))
else:
raise KeyError("Trying to remove "+event+", but it doesn't exist!")
def doesExist(self, event):
if event in self.__events__:
return True
else:
return False
def addChannel(self, eventName, channel):
self.__event_log__.debug("Adding channels '%s' to event '%s'", channel, eventName)
if eventName not in self.__events__:
raise KeyError(str(eventName)+" does not exist!")
else:
#if self.__events__[eventName]["channels"] == False:
# self.__events__[eventName]["channels"] = [channel]
if channel not in self.__events__[eventName]["channels"]:
self.__events__[eventName]["channels"].append(channel)
else:
raise ChannelAlreadyExists(channel)
def removeChannel(self, eventName, channel):
self.__event_log__.debug("Removing channel '%s' from event '%s'", channel, eventName)
if eventName not in self.__events__:
raise KeyError(str(eventName)+" does not exist!")
else:
self.__events__[eventName]["channels"].remove(channel)
def getChannels(self, eventName):
if eventName not in self.__events__:
raise KeyError(str(eventName)+" does not exist!")
else:
#if self.__events__[eventName]["channels"] == False:
# return []
#else:
return self.__events__[eventName]["channels"]
class TimerEvent(StandardEvent):
def addEvent(self, name, interval, function, channel = [], from_event = False):
if self.comes_from_event == False:
self.__event_log__.debug("Adding time event '%s' for channels '%s' with interval = %s second(s)", name, channel, interval)
else:
self.__event_log__.debug("Adding time event '%s' for channels '%s' with interval = %s second(s); Used from inside an event", name, channel, interval)
if not isinstance(interval, (int, float)):
raise TypeError(str(interval)+ " is not an integer/float!")
elif time < 0:
raise ValueError(str(interval) + " is smaller than 0!")
elif not callable(function):
raise TypeError(str(function)+ " is not a callable function!")
elif name in self.__events__:
raise EventAlreadyExists(name)
else:
if not isinstance(channel, list):
raise TypeError(str(channel)+" is "+str(type(channel))+" but needs to be list!")
if self.comes_from_event == False:
self.__events__[name] = {
"timeInterval" : interval,
"function" : function,
"lastExecTime" : time.time(),
"channels" : list(channel),
"stats" : {
"average" : None,
"min" : None,
"max" : None
}
}
else:
self.operationQueue.append(("add",
name,
function,
channel,
interval,
time.time()
))
def tryAllEvents(self, commandHandler):
self.comes_from_event = True
currentTime = time.time()
for event in self.__events__:
self.__execEvent__(event, currentTime, commandHandler)
self.comes_from_event = False
if len(self.operationQueue) > 0:
for i in range(len(self.operationQueue)):
oper = self.operationQueue.pop(0)
if oper[0] == "add":
self.__events__[oper[1]] = {
"function" : oper[2],
"channels" : list(oper[3]),
"timeInterval" : oper[4],
"lastExecTime" : oper[5],
"stats" : {
"average" : None,
"min" : None,
"max" : None
}
}
elif oper[0] == "del":
del self.__events__[oper[1]]
else:
raise RuntimeError("Whaaat?!? It is neither add nor del? EXCEPTION")
def __execEvent__(self, eventName, ntime, commandHandler):
last = self.__events__[eventName]["lastExecTime"]
timeInterval = self.__events__[eventName]["timeInterval"]
if ntime - last >= timeInterval:
start = default_timer()
self.__events__[eventName]["function"](commandHandler, self.__events__[eventName]["channels"])
timeTaken = default_timer() - start
stats = self.__events__[eventName]["stats"]
if stats["average"] == None:
stats["average"] = timeTaken
stats["min"] = timeTaken
stats["max"] = timeTaken
else:
stats["average"] = (stats["average"]+timeTaken) / 2.0
if timeTaken < stats["min"]:
stats["min"] = timeTaken
if timeTaken > stats["max"]:
stats["max"] = timeTaken
self.__events__[eventName]["lastExecTime"] = time.time()
class MsgEvent(StandardEvent):
def tryAllEvents(self, commandHandler, userdata, message, channel):
self.comes_from_event = True
for event in self.__events__:
self.__execEvent__(event, commandHandler, userdata, message, channel)
self.comes_from_event = False
if len(self.operationQueue) > 0:
for i in range(len(self.operationQueue)):
oper = self.operationQueue.pop(0)
if oper[0] == "add":
self.__events__[oper[1]] = {"function" : oper[2],
"channels" : list(oper[3]),
"stats" : {
"average" : None,
"min" : None,
"max" : None
}
}
elif oper[0] == "del":
del self.__events__[oper[1]]
else:
raise RuntimeError("Whaaat?!? It is neither add nor del? EXCEPTION")
def __execEvent__(self, eventName, commandHandler, userdata, message, channel):
start = default_timer()
self.__events__[eventName]["function"](commandHandler, self.__events__[eventName]["channels"], userdata, message, channel)
timeTaken = default_timer() - start
stats = self.__events__[eventName]["stats"]
if stats["average"] == None:
stats["average"] = timeTaken
stats["min"] = timeTaken
stats["max"] = timeTaken
else:
stats["average"] = (stats["average"]+timeTaken) / 2.0
if timeTaken < stats["min"]:
stats["min"] = timeTaken
if timeTaken > stats["max"]:
stats["max"] = timeTaken