<s> from __future__ import absolute_import <EOL> from kombu . common import uuid <EOL> from cell . results import AsyncResult <EOL> from cell . actors import Actor <EOL> from . monads import mreturn , MonadReturn <EOL> __all__ = [ '<STR_LIT>' ] <EOL> class Workflow ( object ) : <EOL> def __init__ ( self , protocol , id = None ) : <EOL> self . _wf_table = { } <EOL> self . protocol = protocol <EOL> self . id = id if id else self . _build_conv_id ( ) <EOL> def __getitem__ ( self , to_role ) : <EOL> print ( "<STR_LIT>" ) <EOL> self . _wf_table . setdefault ( to_role , AsyncResult ( ) ) <EOL> if isinstance ( self . _wf_table [ to_role ] , AsyncResult ) : <EOL> print ( "<STR_LIT>" ) <EOL> to_role_addr = self . _wf_table [ to_role ] . get ( ) <EOL> print ( "<STR_LIT>" % to_role_addr ) <EOL> self . _wf_table [ to_role ] = to_role_addr <EOL> return self . _wf_table [ to_role ] <EOL> def __setitem__ ( self , to_role , to_role_addr ) : <EOL> print ( "<STR_LIT>" % ( <EOL> to_role , to_role_addr ) ) <EOL> if to_role in self . _conv_table and isinstance ( self . _conv_table [ to_role ] , AsyncResult ) : <EOL> self . _wf_table [ to_role ] . set ( to_role_addr ) <EOL> else : <EOL> self . _wf_table [ to_role ] = to_role_addr <EOL> def has_role ( self , role ) : <EOL> return role in self . _conv_table <EOL> def _build_workflow_id ( self ) : <EOL> """<STR_LIT>""" <EOL> return uuid ( ) <EOL> class Server ( Actor ) : <EOL> """<STR_LIT>""" <EOL> def get_handler ( self , message ) : <EOL> if message . properties . get ( '<STR_LIT>' ) : <EOL> handler = self . handle_call <EOL> else : <EOL> handler = self . handle_cast <EOL> return handler ( ) <EOL> def start ( self , * args , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> pass <EOL> def stop ( self , * args , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> pass <EOL> def main ( self , * args , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> self . start ( * args , ** kwargs ) <EOL> try : <EOL> while <NUM_LIT:1> : <EOL> body , message = yield self . receive ( ) <EOL> handler = self . get_handler ( message ) <EOL> handler ( body , message ) <EOL> finally : <EOL> self . stop ( * args , ** kwargs ) <EOL> class RPCClient ( Actor ) : <EOL> def __init__ ( self , server ) : <EOL> self . server = server <EOL> def request_internal ( self , method , args ) : <EOL> self . server . send ( { '<STR_LIT>' : method , '<STR_LIT:args>' : args } , nowait = True ) <EOL> result = ( yield self . server . receive ( ) ) <EOL> mreturn ( result ) <EOL> def request ( self , method , args ) : <EOL> try : <EOL> self . request_internal ( method , args ) <EOL> except MonadReturn as val : <EOL> return val </s>
