<s> import code <EOL> import logging <EOL> import os <EOL> import os . path <EOL> import shutil <EOL> import signal <EOL> import subprocess <EOL> import tempfile <EOL> import traceback <EOL> from itertools import chain <EOL> from collections import namedtuple <EOL> from glob import glob <EOL> log = logging . getLogger ( __name__ ) <EOL> def debug ( sig , frame ) : <EOL> """<STR_LIT>""" <EOL> d = { '<STR_LIT>' : frame } <EOL> d . update ( frame . f_globals ) <EOL> d . update ( frame . f_locals ) <EOL> i = code . InteractiveConsole ( d ) <EOL> message = "<STR_LIT>" <EOL> message += '<STR_LIT>' . join ( traceback . format_stack ( frame ) ) <EOL> i . interact ( message ) <EOL> def listen ( ) : <EOL> if os . name != '<STR_LIT>' : <EOL> signal . signal ( signal . SIGUSR1 , debug ) <EOL> listen ( ) <EOL> def to_java_compatible_path ( path ) : <EOL> if os . name == '<STR_LIT>' : <EOL> path = path . replace ( '<STR_LIT:\\>' , '<STR_LIT:/>' ) <EOL> return path <EOL> ServerInfo = namedtuple ( <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" ) <EOL> class ManagedZooKeeper ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , software_path , server_info , peers = ( ) , classpath = None ) : <EOL> """<STR_LIT>""" <EOL> self . install_path = software_path <EOL> self . _classpath = classpath <EOL> self . server_info = server_info <EOL> self . host = "<STR_LIT:127.0.0.1>" <EOL> self . peers = peers <EOL> self . working_path = tempfile . mkdtemp ( ) <EOL> self . _running = False <EOL> def run ( self ) : <EOL> """<STR_LIT>""" <EOL> if self . running : <EOL> return <EOL> config_path = os . path . join ( self . working_path , "<STR_LIT>" ) <EOL> log_path = os . path . join ( self . working_path , "<STR_LIT>" ) <EOL> log4j_path = os . path . join ( self . working_path , "<STR_LIT>" ) <EOL> data_path = os . path . join ( self . working_path , "<STR_LIT:data>" ) <EOL> if not os . path . exists ( self . working_path ) : <EOL> os . mkdir ( self . working_path ) <EOL> if not os . path . exists ( log_path ) : <EOL> os . mkdir ( log_path ) <EOL> if not os . path . exists ( data_path ) : <EOL> os . mkdir ( data_path ) <EOL> with open ( config_path , "<STR_LIT:w>" ) as config : <EOL> config . write ( """<STR_LIT>""" % ( to_java_compatible_path ( data_path ) , <EOL> self . server_info . client_port , <EOL> self . server_info . admin_port ) ) <EOL> if self . peers : <EOL> servers_cfg = [ ] <EOL> for p in chain ( ( self . server_info , ) , self . peers ) : <EOL> servers_cfg . append ( "<STR_LIT>" % ( <EOL> p . server_id , p . leader_port , p . election_port ) ) <EOL> with open ( config_path , "<STR_LIT:a>" ) as config : <EOL> config . write ( """<STR_LIT>""" % ( "<STR_LIT:\n>" . join ( servers_cfg ) ) ) <EOL> with open ( os . path . join ( data_path , "<STR_LIT>" ) , "<STR_LIT:w>" ) as myid_file : <EOL> myid_file . write ( str ( self . server_info . server_id ) ) <EOL> with open ( log4j_path , "<STR_LIT:w>" ) as log4j : <EOL> log4j . write ( """<STR_LIT>""" + to_java_compatible_path ( <EOL> self . working_path + os . sep + "<STR_LIT>" ) ) <EOL> args = [ <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" , self . classpath , <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" % log_path , <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" % log4j_path , <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" , <EOL> config_path , <EOL> ] <EOL> self . process = subprocess . Popen ( args = args ) <EOL> log . info ( "<STR_LIT>" , <EOL> self . process . pid , args ) <EOL> self . _running = True <EOL> @ property <EOL> def classpath ( self ) : <EOL> """<STR_LIT>""" <EOL> if self . _classpath : <EOL> return self . _classpath <EOL> jars = glob ( ( os . path . join ( <EOL> self . install_path , '<STR_LIT>' ) ) ) <EOL> if jars : <EOL> jars . extend ( glob ( os . path . join ( <EOL> self . install_path , <EOL> "<STR_LIT>" ) ) ) <EOL> jars . extend ( glob ( os . path . join ( <EOL> self . install_path , <EOL> "<STR_LIT>" ) ) ) <EOL> jars . extend ( glob ( os . path . join ( <EOL> self . install_path , <EOL> "<STR_LIT>" ) ) ) <EOL> jars . extend ( glob ( os . path . join ( <EOL> self . install_path , <EOL> "<STR_LIT>" ) ) ) <EOL> else : <EOL> jars = glob ( ( os . path . join ( <EOL> self . install_path , '<STR_LIT>' ) ) ) <EOL> jars . extend ( glob ( os . path . join ( <EOL> self . install_path , <EOL> "<STR_LIT>" ) ) ) <EOL> return os . pathsep . join ( jars ) <EOL> @ property <EOL> def address ( self ) : <EOL> """<STR_LIT>""" <EOL> return "<STR_LIT>" % ( self . host , self . client_port ) <EOL> @ property <EOL> def running ( self ) : <EOL> return self . _running <EOL> @ property <EOL> def client_port ( self ) : <EOL> return self . server_info . client_port <EOL> def reset ( self ) : <EOL> """<STR_LIT>""" <EOL> self . stop ( ) <EOL> shutil . rmtree ( os . path . join ( self . working_path , "<STR_LIT:data>" ) , True ) <EOL> os . mkdir ( os . path . join ( self . working_path , "<STR_LIT:data>" ) ) <EOL> with open ( os . path . join ( self . working_path , "<STR_LIT:data>" , "<STR_LIT>" ) , "<STR_LIT:w>" ) as fh : <EOL> fh . write ( str ( self . server_info . server_id ) ) <EOL> def stop ( self ) : <EOL> """<STR_LIT>""" <EOL> if not self . running : <EOL> return <EOL> self . process . terminate ( ) <EOL> self . process . wait ( ) <EOL> if self . process . returncode != <NUM_LIT:0> : <EOL> log . warn ( "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" , self . process . pid , <EOL> self . process . returncode ) <EOL> self . _running = False <EOL> def destroy ( self ) : <EOL> """<STR_LIT>""" <EOL> self . stop ( ) <EOL> shutil . rmtree ( self . working_path , True ) <EOL> class ZookeeperCluster ( object ) : <EOL> def __init__ ( self , install_path = None , classpath = None , <EOL> size = <NUM_LIT:3> , port_offset = <NUM_LIT> ) : <EOL> self . _install_path = install_path <EOL> self . _classpath = classpath <EOL> self . _servers = [ ] <EOL> port = port_offset <EOL> peers = [ ] <EOL> for i in range ( size ) : <EOL> info = ServerInfo ( i + <NUM_LIT:1> , port , port + <NUM_LIT:1> , port + <NUM_LIT:2> , port + <NUM_LIT:3> ) <EOL> peers . append ( info ) <EOL> port += <NUM_LIT:10> <EOL> for i in range ( size ) : <EOL> server_peers = list ( peers ) <EOL> server_info = server_peers . pop ( i ) <EOL> self . _servers . append ( <EOL> ManagedZooKeeper ( <EOL> self . _install_path , server_info , server_peers , <EOL> classpath = self . _classpath ) ) <EOL> def __getitem__ ( self , k ) : <EOL> return self . _servers [ k ] <EOL> def __iter__ ( self ) : <EOL> return iter ( self . _servers ) <EOL> def start ( self ) : <EOL> for server in reversed ( list ( self ) ) : <EOL> server . run ( ) <EOL> import time <EOL> time . sleep ( <NUM_LIT:2> ) <EOL> def stop ( self ) : <EOL> for server in self : <EOL> server . stop ( ) <EOL> self . _servers = [ ] <EOL> def terminate ( self ) : <EOL> for server in self : <EOL> server . destroy ( ) <EOL> def reset ( self ) : <EOL> for server in self : <EOL> server . reset ( ) </s>
