<s> from functools import partial <EOL> from multiprocessing import Process , JoinableQueue <EOL> from imposm . parser import OSMParser <EOL> from imposm . util import setproctitle <EOL> class ImposmReader ( object ) : <EOL> def __init__ ( self , mapping , cache , pool_size = <NUM_LIT:2> , merge = False , logger = None ) : <EOL> self . pool_size = pool_size <EOL> self . mapper = mapping <EOL> self . merge = merge <EOL> self . cache = cache <EOL> self . reader = None <EOL> self . logger = logger <EOL> self . estimated_coords = <NUM_LIT:0> <EOL> def read ( self , filename ) : <EOL> nodes_queue = JoinableQueue ( <NUM_LIT> ) <EOL> coords_queue = JoinableQueue ( <NUM_LIT> ) <EOL> ways_queue = JoinableQueue ( <NUM_LIT> ) <EOL> relations_queue = JoinableQueue ( <NUM_LIT> ) <EOL> log_proc = self . logger ( ) <EOL> log_proc . start ( ) <EOL> marshal = True <EOL> if self . merge : <EOL> marshal = False <EOL> estimates = { <EOL> '<STR_LIT>' : self . estimated_coords , <EOL> '<STR_LIT>' : self . estimated_coords // <NUM_LIT:50> , <EOL> '<STR_LIT>' : self . estimated_coords // <NUM_LIT:7> , <EOL> '<STR_LIT>' : self . estimated_coords // <NUM_LIT:1000> , <EOL> } <EOL> coords_writer = CacheWriterProcess ( coords_queue , self . cache . coords_cache , <EOL> estimates [ '<STR_LIT>' ] , log = partial ( log_proc . log , '<STR_LIT>' ) , <EOL> marshaled_data = marshal ) <EOL> coords_writer . start ( ) <EOL> nodes_writer = CacheWriterProcess ( nodes_queue , self . cache . nodes_cache , <EOL> estimates [ '<STR_LIT>' ] , log = partial ( log_proc . log , '<STR_LIT>' ) , <EOL> marshaled_data = marshal ) <EOL> nodes_writer . start ( ) <EOL> ways_writer = CacheWriterProcess ( ways_queue , self . cache . ways_cache , <EOL> estimates [ '<STR_LIT>' ] , merge = self . merge , log = partial ( log_proc . log , '<STR_LIT>' ) , <EOL> marshaled_data = marshal ) <EOL> ways_writer . start ( ) <EOL> relations_writer = CacheWriterProcess ( relations_queue , self . cache . relations_cache , <EOL> estimates [ '<STR_LIT>' ] , merge = self . merge , log = partial ( log_proc . log , '<STR_LIT>' ) , <EOL> marshaled_data = marshal ) <EOL> relations_writer . start ( ) <EOL> log_proc . message ( '<STR_LIT>' % ( <EOL> estimates [ '<STR_LIT>' ] / <NUM_LIT:1000> , estimates [ '<STR_LIT>' ] / <NUM_LIT:1000> , estimates [ '<STR_LIT>' ] / <NUM_LIT:1000> , <EOL> estimates [ '<STR_LIT>' ] / <NUM_LIT:1000> ) <EOL> ) <EOL> pool_size = self . pool_size if self . pool_size < <NUM_LIT:4> else self . pool_size - <NUM_LIT:1> <EOL> parser = OSMParser ( pool_size , nodes_callback = nodes_queue . put , coords_callback = coords_queue . put , <EOL> ways_callback = ways_queue . put , relations_callback = relations_queue . put , marshal_elem_data = marshal ) <EOL> parser . nodes_tag_filter = self . mapper . tag_filter_for_nodes ( ) <EOL> parser . ways_tag_filter = self . mapper . tag_filter_for_ways ( ) <EOL> parser . relations_tag_filter = self . mapper . tag_filter_for_relations ( ) <EOL> parser . parse ( filename ) <EOL> coords_queue . put ( None ) <EOL> nodes_queue . put ( None ) <EOL> ways_queue . put ( None ) <EOL> relations_queue . put ( None ) <EOL> coords_writer . join ( ) <EOL> nodes_writer . join ( ) <EOL> ways_writer . join ( ) <EOL> relations_writer . join ( ) <EOL> log_proc . stop ( ) <EOL> log_proc . join ( ) <EOL> class CacheWriterProcess ( Process ) : <EOL> def __init__ ( self , queue , cache , estimated_records = None , merge = False , log = None , <EOL> marshaled_data = False ) : <EOL> Process . __init__ ( self ) <EOL> self . daemon = True <EOL> setproctitle ( '<STR_LIT>' ) <EOL> self . queue = queue <EOL> self . cache = cache <EOL> self . merge = merge <EOL> self . log = log <EOL> self . marshaled_data = marshaled_data <EOL> self . estimated_records = estimated_records <EOL> def run ( self ) : <EOL> cache = self . cache ( mode = '<STR_LIT:w>' , estimated_records = self . estimated_records ) <EOL> if self . marshaled_data : <EOL> cache_put = cache . put_marshaled <EOL> else : <EOL> cache_put = cache . put <EOL> while True : <EOL> data = self . queue . get ( ) <EOL> if data is None : <EOL> self . queue . task_done ( ) <EOL> break <EOL> if self . merge : <EOL> for d in data : <EOL> if d [ <NUM_LIT:0> ] in cache : <EOL> elem = cache . get ( d [ <NUM_LIT:0> ] ) <EOL> elem . merge ( * d [ <NUM_LIT:1> : ] ) <EOL> d = elem . to_tuple ( ) <EOL> cache_put ( * d ) <EOL> else : <EOL> for d in data : <EOL> cache_put ( * d ) <EOL> if self . log : <EOL> self . log ( len ( data ) ) <EOL> self . queue . task_done ( ) <EOL> cache . close ( ) </s>
