At Monday 4/12/2006 13:39, [EMAIL PROTECTED] wrote:
class Factory:
def __isValidEventClass(self, obj):
if inspect.isclass(obj) and obj != events.EvtBase and \
events.EvtBase in inspect.getmro(obj):
for m in inspect.getmembers(obj):
if m[0] == 'eventNum':
return True
return False
def __init__(self):
self.__eventDict = {}
for m in inspect.getmembers(events, self.__isValidEventClass):
cls = m[1]
self.__eventDict.update({cls.eventNum: cls})
def parseEvents(self, file):
while not file.eof():
ev = file.read(1)
self.__eventDict[ev](file).execute()
You already got other ways to go.
But if you want to use several classes (maybe span along several
modules), you can code the checking a lot more easily:
if issubclass(cls, EvtBase) and hasattr(cls, 'eventNum'): ...
I'd register each class itself, so no need to iterate over the
members, but anyway you could use vars(module).
In short, inspect may be good for debugging or documenting tools, but
hardly needed for usual code.
BTW, that file format is horrible. Users have to know *every* posible
event (at least its size), even if the're not interested in them. And
if you get out of sync, you can't recover. Add a new event, and all
programs using the file don't work anymore. Ugh!
--
Gabriel Genellina
Softlab SRL
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