def __call__(self, im_self, *args, **kwargs):
'''Via the magic that is partial functions returned from __get__, im_self is the instance object of the class
we're decorating a method of and [kw]args are the actual parameters to the decorated method'''
region = cache_regions[im_self.cache_region]
if not region.enabled:
return self.decorated_function(im_self, *args, **kwargs)
key = (self.decorated_function.__name__, getattr(im_self, 'sid', im_self.uid),
tuple(getattr(x, 'sid', x) for x in args),
tuple((k, getattr(v, 'sid', v)) for k, v in sorted(kwargs.iteritems())),
defaults.sid)
key = dumps(key)
found, value = region.get(key)
if found:
return value
else:
im_self.logger.debug('creating new cache entry for {}.{}'
.format(im_self.__class__.__name__, self.decorated_function.__name__))
value = self.decorated_function(im_self, *args, **kwargs)
region.set(key, value)
return value
def _calc_sid(self):
object.__setattr__(self, 'sid', dumps((_file_sha, tuple((k, v) for k, v in sorted(self.__dict__.iteritems())))))
