<s> import time <EOL> from calvin . utilities import calvinlogger <EOL> from calvin . utilities import calvinuuid <EOL> from calvin . utilities import calvinconfig <EOL> _conf = calvinconfig . get ( ) <EOL> _log = calvinlogger . get_logger ( __name__ ) <EOL> _metering = None <EOL> def get_metering ( ) : <EOL> """<STR_LIT>""" <EOL> global _metering <EOL> return _metering <EOL> def set_metering ( metering ) : <EOL> """<STR_LIT>""" <EOL> global _metering <EOL> if _metering is None : <EOL> _metering = metering <EOL> return _metering <EOL> class Metering ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , node ) : <EOL> super ( Metering , self ) . __init__ ( ) <EOL> self . node = node <EOL> self . timeout = _conf . get ( None , '<STR_LIT>' ) <EOL> self . aggregated_timeout = _conf . get ( None , '<STR_LIT>' ) <EOL> self . actors_log = { } <EOL> self . actors_meta = { } <EOL> self . actors_destroyed = { } <EOL> self . active = False <EOL> self . users = { } <EOL> self . oldest = time . time ( ) <EOL> self . last_forget = time . time ( ) <EOL> self . next_forget_aggregated = time . time ( ) <EOL> self . actors_aggregated = { } <EOL> self . actors_aggregated_time = { } <EOL> def fired ( self , actor_id , action_name ) : <EOL> t = time . time ( ) <EOL> if self . aggregated_timeout > <NUM_LIT:0.0> : <EOL> self . actors_aggregated . setdefault ( actor_id , <EOL> { action : <NUM_LIT:0> for action in self . actors_meta [ actor_id ] } ) [ action_name ] += <NUM_LIT:1> <EOL> self . actors_aggregated_time . setdefault ( actor_id , [ t , t ] ) [ <NUM_LIT:1> ] = t <EOL> if self . next_forget_aggregated <= t : <EOL> self . forget_aggregated ( t ) <EOL> if self . active and self . timeout > <NUM_LIT:0.0> : <EOL> self . actors_log [ actor_id ] . append ( ( t , action_name ) ) <EOL> if self . oldest < t - self . timeout and self . last_forget < t - <NUM_LIT:1.0> : <EOL> self . forget ( t ) <EOL> def register ( self , user_id = None ) : <EOL> if not user_id : <EOL> user_id = calvinuuid . uuid ( "<STR_LIT>" ) <EOL> if user_id in self . users : <EOL> raise Exception ( "<STR_LIT>" ) <EOL> self . users [ user_id ] = time . time ( ) <EOL> self . active = True <EOL> return user_id <EOL> def unregister ( self , user_id ) : <EOL> if user_id in self . users : <EOL> self . users . pop ( user_id ) <EOL> self . active = bool ( self . users ) <EOL> self . forget ( time . time ( ) ) <EOL> else : <EOL> raise Exception ( "<STR_LIT>" ) <EOL> def get_timed_meter ( self , user_id ) : <EOL> if user_id not in self . users : <EOL> _log . debug ( "<STR_LIT>" ) <EOL> raise Exception ( "<STR_LIT>" ) <EOL> t = time . time ( ) <EOL> response = { actor_id : [ d for d in data if d [ <NUM_LIT:0> ] > self . users [ user_id ] ] <EOL> for actor_id , data in self . actors_log . iteritems ( ) } <EOL> self . users [ user_id ] = t <EOL> self . forget ( t ) <EOL> return response <EOL> def get_aggregated_meter ( self , user_id ) : <EOL> if user_id not in self . users : <EOL> _log . debug ( "<STR_LIT>" ) <EOL> raise Exception ( "<STR_LIT>" ) <EOL> response = { '<STR_LIT>' : self . actors_aggregated , '<STR_LIT:time>' : self . actors_aggregated_time } <EOL> return response <EOL> def forget ( self , current ) : <EOL> self . last_forget = current <EOL> if not self . active : <EOL> self . actors_log = { } <EOL> self . oldest = current <EOL> return <EOL> t = min ( self . users . values ( ) ) <EOL> if t < current - self . timeout : <EOL> t = current - self . timeout <EOL> self . oldest = t <EOL> for actor_id , data in self . actors_log . iteritems ( ) : <EOL> self . actors_log [ actor_id ] = [ d for d in data if d [ <NUM_LIT:0> ] > t ] <EOL> def forget_aggregated ( self , current ) : <EOL> et = current - ( self . timeout * <NUM_LIT:2> ) - self . aggregated_timeout <EOL> for actor_id , dt in self . actors_destroyed . iteritems ( ) : <EOL> if dt < et : <EOL> self . actors_meta . pop ( actor_id ) <EOL> try : <EOL> self . actors_aggregated_time . pop ( actor_id ) <EOL> self . actors_aggregated . pop ( actor_id ) <EOL> except : <EOL> pass <EOL> self . actors_destroyed = { actor_id : dt for actor_id , dt in self . actors_destroyed . iteritems ( ) if dt >= et } <EOL> if self . actors_destroyed : <EOL> self . next_forget_aggregated = ( min ( self . actors_destroyed . values ( ) ) + <EOL> self . aggregated_timeout + ( self . timeout * <NUM_LIT:2> ) ) <EOL> else : <EOL> self . next_forget_aggregated = current + self . aggregated_timeout + ( self . timeout * <NUM_LIT:2> ) <EOL> def add_actor_info ( self , actor ) : <EOL> self . actors_meta [ actor . id ] = { } <EOL> if actor . id in self . actors_destroyed : <EOL> self . actors_destroyed . pop ( actor . id ) <EOL> self . actors_log . setdefault ( actor . id , [ ] ) <EOL> for action_method in actor . __class__ . action_priority : <EOL> self . actors_meta [ actor . id ] [ action_method . __name__ ] = { <EOL> '<STR_LIT>' : { p [ <NUM_LIT:0> ] : p [ <NUM_LIT:1> ] for p in action_method . action_input } , <EOL> '<STR_LIT>' : { p [ <NUM_LIT:0> ] : p [ <NUM_LIT:1> ] for p in action_method . action_output } } <EOL> _log . analyze ( self . node . id , "<STR_LIT:+>" , { '<STR_LIT>' : actor . id , '<STR_LIT>' : self . actors_meta [ actor . id ] } ) <EOL> def remove_actor_info ( self , actor_id ) : <EOL> if actor_id in self . actors_meta : <EOL> self . actors_destroyed [ actor_id ] = time . time ( ) <EOL> self . next_forget_aggregated = ( min ( self . actors_destroyed . values ( ) ) + <EOL> self . aggregated_timeout + ( self . timeout * <NUM_LIT:2> ) ) <EOL> def get_actors_info ( self , user_id ) : <EOL> return self . actors_meta </s>
