<s> from __future__ import absolute_import <EOL> import time <EOL> from ostrich import stats <EOL> from ostrich . timing import Timing , TimingStat <EOL> from ostrich . histogram import Histogram <EOL> class TimeSeries ( object ) : <EOL> def __init__ ( self , size , empty = <NUM_LIT:0> ) : <EOL> self . data = [ empty ] * size <EOL> self . size = size <EOL> self . index = <NUM_LIT:0> <EOL> def add ( self , n ) : <EOL> self . data [ self . index ] = n <EOL> self . index = ( self . index + <NUM_LIT:1> ) % self . size <EOL> def to_list ( self ) : <EOL> return self . data [ self . index : ] + self . data [ : self . index ] <EOL> class TimeSeriesCollector ( object ) : <EOL> def __init__ ( self ) : <EOL> self . hourly = { } <EOL> self . hourly_timings = { } <EOL> self . last_collection = time . time ( ) <EOL> self . stats = stats . fork ( ) <EOL> def collect ( self ) : <EOL> def get_or_add ( key , new = <NUM_LIT:0> , d = self . hourly ) : <EOL> value = d . get ( key ) <EOL> if value is None : <EOL> value = TimeSeries ( <NUM_LIT> , new ) <EOL> d [ key ] = value <EOL> return value <EOL> for k , v in stats . get_gauge_stats ( ) . items ( ) : <EOL> get_or_add ( "<STR_LIT>" % k ) . add ( v ) <EOL> for k , v in self . stats . get_counter_stats ( reset = True ) . items ( ) : <EOL> get_or_add ( "<STR_LIT>" % k ) . add ( v ) <EOL> for k , v in self . stats . get_timing_stats ( reset = True ) . items ( ) : <EOL> get_or_add ( "<STR_LIT>" % k , None , d = self . hourly_timings ) . add ( v ) <EOL> self . last_collection = time . time ( ) <EOL> def start_twisted ( self , collect_every = <NUM_LIT> ) : <EOL> from twisted . internet import task <EOL> self . task = task . LoopingCall ( self . collect ) <EOL> self . task . start ( collect_every ) <EOL> return self . task <EOL> def stop_twisted ( self ) : <EOL> self . task . stop ( ) <EOL> def get_combined ( self , name , series = False ) : <EOL> if name . startswith ( "<STR_LIT>" ) : <EOL> if series : <EOL> return self . get ( name ) <EOL> else : <EOL> counter = self . stats . get_counter ( name [ <NUM_LIT:8> : ] ) . get ( ) <EOL> if name in self . hourly : <EOL> counter += sum ( self . hourly [ name ] . to_list ( ) ) <EOL> return counter <EOL> elif name . startswith ( "<STR_LIT>" ) : <EOL> timing = Timing ( ) <EOL> timing . add ( self . stats . get_timing ( name [ <NUM_LIT:7> : ] ) . get ( ) ) <EOL> if name in self . hourly_timings : <EOL> for v in self . hourly_timings [ name ] . to_list ( ) : <EOL> if v : <EOL> timing . add ( v ) <EOL> return timing . get ( ) <EOL> else : <EOL> raise NotImplemented ( "<STR_LIT>" ) <EOL> def get ( self , name ) : <EOL> times = [ int ( self . last_collection + ( ( i - <NUM_LIT> ) * <NUM_LIT> ) ) for i in xrange ( <NUM_LIT> ) ] <EOL> if name . startswith ( "<STR_LIT>" ) : <EOL> return zip ( times , self . hourly . get ( name , TimeSeries ( <NUM_LIT> , <NUM_LIT:0> ) ) . to_list ( ) ) + [ ( time . time ( ) , self . stats . get_counter ( name [ <NUM_LIT:8> : ] ) . get ( ) ) ] <EOL> elif name . startswith ( "<STR_LIT>" ) : <EOL> return zip ( times , [ v or TimingStat ( histogram = Histogram ( ) ) for v in self . hourly_timings . get ( name , TimeSeries ( <NUM_LIT> , None ) ) . to_list ( ) ] ) + [ ( time . time ( ) , self . stats . get_timing ( name [ <NUM_LIT:7> : ] ) . get ( ) ) ] <EOL> else : <EOL> raise NotImplemented ( "<STR_LIT>" ) <EOL> def keys ( self ) : <EOL> return self . hourly . keys ( ) + self . hourly_timings . keys ( ) </s>
