def __init__( self , orbit_file_path ): # orbit file is a JSON formatted file :)
self.log = VyLog( self.__class__.__name__ )
# --- loading orbit configs - [bgn]
self.log.show('loading orbit configs [bgn]')
orbit_json = json.load( open( orbit_file_path ) )
self.name = orbit_json["name"]
self.ip = orbit_json["ip"]
self.port = int( orbit_json["port"] ) # just make sure, ok?
self.orbit = Orbit(orbit_json["moons"])
self.log.show('loading orbit configs [end]')
def __init__( self , moon_cfg ):
self.log = VyLog( self.__class__.__name__ )
try :
moon_cfg = json.load( open( moon_cfg ) )
self.log.show( "[filling up ip, port and name]" )
self.ip = moon_cfg["ip"]
self.port = int( moon_cfg["port"] )
self.name = moon_cfg["name"]
self.log.show( "[filling up std ( in |out | err ) for daemon class]" )
# ---
self.log.show( "[filling up directorys" )
self.application_dir = moon_cfg["directorys"]["applications"]
self.application_profile_dir = moon_cfg["directorys"]["application_profiles"]
self.pidfile = moon_cfg["pid"]
except :
print_exc()
self.log.show( '[wrong json format :/]' )
self.log.show( '[bye bye]' )
exit( 0 )
self.log.show("[loading application index]")
self.library = {}
self.log.show( '[acessing]['+self.application_profile_dir+']' )
os.chdir( os.path.expanduser( self.application_profile_dir ) )
for app_profile_filename in os.listdir('.'):
app_tmp = Application()
try :
app_profile_dict = json.load( open( app_profile_filename ) )
if 0 == app_tmp.load_profile( app_profile_dict ) :
self.library[app_tmp.alias] = app_tmp
self.log.show( '[application]['+app_tmp.alias+'][indexed]' )
except :
print_exc()
self.log.show( '[error][wrong json formating on profile][application will not be indexed]' )
self.log.show( '[appending application dir to path]['+self.application_dir+']' )
sys.path.append( os.path.expanduser( self.application_dir ) )
self.log.show('persisting pid -> ' + moon_cfg["pid"] )
if not os.path.isfile(moon_cfg["pid"]):
pid = open( self.pidfile , 'w' )
pid.write(str( os.getpid() ))
pid.close()
class MoonServer :
def __init__( self , moon_cfg ):
self.log = VyLog( self.__class__.__name__ )
try :
moon_cfg = json.load( open( moon_cfg ) )
self.log.show( "[filling up ip, port and name]" )
self.ip = moon_cfg["ip"]
self.port = int( moon_cfg["port"] )
self.name = moon_cfg["name"]
self.log.show( "[filling up std ( in |out | err ) for daemon class]" )
# ---
self.log.show( "[filling up directorys" )
self.application_dir = moon_cfg["directorys"]["applications"]
self.application_profile_dir = moon_cfg["directorys"]["application_profiles"]
self.pidfile = moon_cfg["pid"]
except :
print_exc()
self.log.show( '[wrong json format :/]' )
self.log.show( '[bye bye]' )
exit( 0 )
self.log.show("[loading application index]")
self.library = {}
self.log.show( '[acessing]['+self.application_profile_dir+']' )
os.chdir( os.path.expanduser( self.application_profile_dir ) )
for app_profile_filename in os.listdir('.'):
app_tmp = Application()
try :
app_profile_dict = json.load( open( app_profile_filename ) )
if 0 == app_tmp.load_profile( app_profile_dict ) :
self.library[app_tmp.alias] = app_tmp
self.log.show( '[application]['+app_tmp.alias+'][indexed]' )
except :
print_exc()
self.log.show( '[error][wrong json formating on profile][application will not be indexed]' )
self.log.show( '[appending application dir to path]['+self.application_dir+']' )
sys.path.append( os.path.expanduser( self.application_dir ) )
self.log.show('persisting pid -> ' + moon_cfg["pid"] )
if not os.path.isfile(moon_cfg["pid"]):
pid = open( self.pidfile , 'w' )
pid.write(str( os.getpid() ))
pid.close()
def start( self ):
self.run()
def stop( self ):
if os.path.isfile(self.pidfile):
pid = ''.join( open( self.pidfile , 'r' ) )
try :
self.log.show('Kill moon server at PID '+pid)
os.kill( int(pid) , 9 )
except :
self.log.show('pid file exist but process is already dead!')
os.remove( self.pidfile )
else :
self.log.show('there is nothing to stop! .-.')
def run( self ):
server = None
client = None
try :
#self.ip = netifaces.ifaddresses(self.network_device)[netifaces.AF_INET][0]['addr']
self.log.show( '[setting up bind]['+self.ip+'/'+str(self.port)+']' )
server = TCPSocketServer()
server.bind( self.ip , self.port )
while True :
self.log.show( '[wait for an expedition]' )
client = server.wait()
self.log.show( '[solving task mode]' )
self.solving_tasks( client )
self.log.show( '[closing connection]' )
client.close()
except :
print_exc()
if server : server.close()
if client : client.close()
self.stop()
exit(0)
def solving_tasks( self , client ):
try :
self.log.show( '[wait for a task request]' )
task_json_str = client.read()
task_obj = Task( json_str = task_json_str )
self.log.show( '[checking if the app is intalled]['+task_obj.app+']' )
app = self.library[ task_obj.app ]
self.log.show( '[executing]['+task_obj.app+']' )
task_obj = app.run( task_obj )
task_obj.moon_name = self.name
self.log.show( '[sending result to planet]' )
client.send( str( task_obj ) )
except :
print_exc()
def __init__( self ):
self.log = VyLog( self.__class__.__name__ )
self.name = None
self.alias = None
self.boot_module = None
class Application :
def __init__( self ):
self.log = VyLog( self.__class__.__name__ )
self.name = None
self.alias = None
self.boot_module = None
def load_profile( self , application_profile_dict ):
try :
self.name = application_profile_dict["name"]
self.alias = application_profile_dict["alias"]
self.boot_module = application_profile_dict["boot_module"]
return 0
except :
self.log.show( '[error][wrong json format]' )
print_exc()
return 1
def __str__( self ):
return json.dumps( self , default=lambda o: o.__dict__ , indent=4 )
def run( self , task_obj ):
self.log.show( '['+str(os.getcwd())+']' )
try :
self.log.show( '[importing module]['+self.boot_module+']' )
self.log.show( self.boot_module )
self.log.show( self.boot_module.split('.')[-1] )
app = __import__( self.boot_module , globals() , locals() , [ self.boot_module.split('.')[-1] ] , -1 )
os.chdir( os.path.dirname( app.__file__ ) )
self.log.show( '[executing app]' )
s = time.time()
task_obj.result , task_obj.error = app.run( task_obj.get_arguments() )
e = time.time()
task_obj.execution_time = e - s
except:
self.log.show('[error][cant import application]' )
print_exc()
task_obj.error = format_exc()
return task_obj
def expedition( planet_name , moon_name , moon_ip , moon_port , send_q , recv_q ):
log = VyLog( 'Expedition' )
log.show('Expedition to '+moon_name+' is launched')
try :
#log.show('Entering on main loop')
while not send_q.empty() :
log.show('get task to send')
task_json_str = send_q.get()
try :
moon_connection = TCPSocketClient()
log.show( 'connecting to '+moon_name )
moon_connection.connect( moon_ip , moon_port ) # Moon(Slave Host) is down.
log.show( 'sending task to '+moon_name )
moon_connection.send( task_json_str )
log.show( 'reading a response from '+moon_name )
task_json_str = moon_connection.read()
log.show( 'closing connection' )
moon_connection.close()
log.show( 'enqueue on recv_queue' )
recv_q.put_nowait( task_json_str )
except :
send_q.put( task_json_str )
log.show( 'Expedition on '+moon_name+' is aborted!' )
log.show(format_exc())
break
except :
log.show( 'Expedition on '+moon_name+' is aborted!' )
log.show(format_exc())
log.show( 'Expedition on '+moon_name+' was a sucess! returning to home!' )
class Planet :
# Master Host Abstraction
'''
Orbit File Template
{
"name" : "planet_name",
"ip" : "planet_ip",
"port" : planet_port,
"moons" :
[
[ "moon_name" , { "ip" : "moon_ip" , "port" : moon_host } ]
]
}
'''
def __init__( self , orbit_file_path ): # orbit file is a JSON formatted file :)
self.log = VyLog( self.__class__.__name__ )
# --- loading orbit configs - [bgn]
self.log.show('loading orbit configs [bgn]')
orbit_json = json.load( open( orbit_file_path ) )
self.name = orbit_json["name"]
self.ip = orbit_json["ip"]
self.port = int( orbit_json["port"] ) # just make sure, ok?
self.orbit = Orbit(orbit_json["moons"])
self.log.show('loading orbit configs [end]')
# --- loading orbit configs - [end]
def launch_expeditions( self , task_request_list , moon_name_list=None ):
global expedition
# ---[ 1 ]------------------------------------------------------
self.log.show( 'Checking Moon list sent by user' )
working_moons = []
if not moon_name_list :
self.log.show( 'Traveling to available Moons on Orbit' )
working_moons = self.orbit.values()
else :
self.log.show( 'Traveling to ' + str( moon_name_list ) )
working_moons = [ self.orbit.get_moon( moon_name ) for moon_name in moon_name_list ]
# ---[ 2 ]------------------------------------------------------
self.log.show( 'Build Thread-safe Queues with no maximum size' )
recv_queue = Manager().Queue( )#len(task_request_list) )
send_queue = Manager().Queue( )#len(task_request_list) )
# ---[ 3 ]------------------------------------------------------
self.log.show( 'Enqueue tasks on "send_queue" object' )
for task_obj in task_request_list :
send_queue.put_nowait( str(task_obj) ) # "Normal" Objects are note thread safe!
self.log.show( 'send_queue = ' + str(send_queue.qsize())+'/'+str(len(task_request_list)) + 'tasks')
# ---[ 4 ]------------------------------------------------------
self.log.show( 'Starting up Process Pool' )
pool = Pool(processes=len(working_moons))
for moon in working_moons :
#running_expeditions.append( Process( target=expedition , args=(self.name , moon.name , moon.ip , moon.port , taskrequest_queue , taskresponse_queue, ) ) ) # Process Object
pool.apply_async( func=expedition , args=(self.name , moon.name , moon.ip , moon.port , send_queue , recv_queue , ) )
# ---[ 5 ]------------------------------------------------------
pool.close()
pool.join()
self.log.show( 'recv_queue = '+ str(recv_queue.qsize())+'/'+str(len(task_request_list)) + 'tasks' )
tmp = []
while not recv_queue.empty() :
tmp.append( recv_queue.get() )
self.log.show( 'closing queue' )
self.log.show( 'return results' )
return tmp
