def joinGameInstance(login,
password,
gameName,
instanceName,
observationKey=None):
if observationKey is None:
logging.info("GameServer] " + login + " joining game instance " +
gameName + " " + instanceName)
else:
logging.info("GameServer] " + login + " joining game instance " +
gameName + " " + instanceName + " with observation key " +
observationKey)
# if instance doesn't exist
vhost = RabbitMQConfiguration().getRabbitMQProperty(
"virtualHostSeparator") + gameName + RabbitMQConfiguration(
).getRabbitMQProperty("virtualHostSeparator") + instanceName
if vhost not in gameInstanceManagementDataDict.keys():
logging.warning("GameServer] Game instance " + gameName + " " +
instanceName + "doesn't exist, joining canceled ")
return False
else:
gameinstance = gameInstanceManagementDataDict[vhost]
set_permissions_vhost_participant(vhost, login, password)
if observationKey is None:
gameinstance.queueRequest.put(["join", login])
else:
gameinstance.queueRequest.put(
["joinWithObservationKey", login, observationKey])
item = gameinstance.queueReturn.get()
logging.info("GameServer] " + login +
" has joined the game instance " + gameName + " " +
instanceName + ".")
return item[0]
def handle_delivery_gamelogic(self, channel, method, header, body):
seqBody = body.split(
RabbitMQConfiguration().getRabbitMQProperty("bodySeparator"))
try:
key = method.routing_key
except:
logging.debug("GameLogicServer] message ignored" + body + " " +
method)
logging.debug("GameLogicServer] Received on /instance " + body +
" with key " + key)
seqKey = key.split(
RabbitMQConfiguration().getRabbitMQProperty("routingKeySeparator"))
actionKind = seqKey[2]
action = seqKey[3]
for i in listofactions.ListOfActions.reverseLookup:
if actionKind == listofactions.ListOfActions.whatis(i):
for j in listofactions.ListOfActions.whichenuminstance(
i).reverseLookup:
if action == listofactions.ListOfActions.whichenuminstance(
i).whatis(j):
listofactions.ListOfActions.whichenuminstance(
i).whichfunction(j)(self.state, seqKey, body)
return
for i in self.state.gamelogiclistofactions.reverseLookup:
if actionKind == self.state.gamelogiclistofactions.whatis(i):
for j in self.state.gamelogiclistofactions.whichenuminstance(
i).reverseLookup:
if action == self.state.gamelogiclistofactions.whichenuminstance(
i).whatis(j):
self.state.gamelogiclistofactions.whichenuminstance(
i).whichfunction(j)(self.state, seqKey, body)
return
def terminateGameInstance(gameName, instanceName):
logging.info("GameServer] Terminating game instance " + gameName + " " +
instanceName)
# if instance doesn't exist
vhost = RabbitMQConfiguration().getRabbitMQProperty(
"virtualHostSeparator") + gameName + RabbitMQConfiguration(
).getRabbitMQProperty("virtualHostSeparator") + instanceName
if vhost not in gameInstanceManagementDataDict.keys():
logging.warning("GameServer] Game instance " + gameName + " " +
instanceName + "doesn't exist, termination canceled ")
return False
else:
# return the game instance, and remove it from the dictionary
gameinstance = gameInstanceManagementDataDict.pop(vhost)
gameinstance.queueRequest.put(["terminate"])
logging.debug(
"GameServer] Wait for the end of game logic server for " +
gameName + " " + instanceName)
gameinstance.process.join()
while not gameinstance.queueRequest.empty():
#print "queue request:", gameinstance.queueRequest.get()
logging.debug("GameServer] queue request:" +
str(gameinstance.queueRequest.get()))
while not gameinstance.queueReturn.empty():
#print "queue return:", gameinstance.queueReturn.get()
logging.debug("GameServer] queue return:" +
str(gameinstance.queueReturn.get()))
return True
def on_channel_open(self, new_channel):
logging.debug("GameLogicServer] Channel on /instance opened")
self.channel = new_channel
self.channel.exchange_declare(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
type=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeType"),
callback=self.on_exchange_declared)
def publish(self, consumer, state, action, message):
logging.debug("GameLogicServer] Worker - publish message " + message +
" with action " + action + " to consumer " + consumer)
routingKey = RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName") + "." + consumer + "." + action
self.channel.basic_publish(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
routing_key=routingKey,
body=message)
def on_queue_declared(self, new_queue):
logging.debug("GameLogicServer] Queue on /instance declared")
self.queue = new_queue.method.queue
gameLogicServerBindingKey = "*." + RabbitMQConfiguration(
).getRabbitMQProperty("gameLogicServerUserName") + ".*.*"
self.channel.queue_bind(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
queue=self.queue,
routing_key=gameLogicServerBindingKey,
callback=self.on_queue_bind)
def terminate(self):
logging.info("GameLogicServer] Terminating")
self.state.exiting = True
routingKey = RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName") + ".all.lifecycle.terminate"
message = "all the participants must terminate"
self.channel.basic_publish(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
routing_key=routingKey,
body=message)
logging.debug("GameLogicServer] Stopping gamelogic channel ioloop")
self.state.gamelogicchannel.stop()
logging.debug("GameLogicServer] Stopping worker channel")
self.stop()
def __init__(self, gameName, instanceName):
self.gameName = gameName
self.instanceName = instanceName
self.vhost = RabbitMQConfiguration().getRabbitMQProperty("virtualHostSeparator") + gameName + RabbitMQConfiguration().getRabbitMQProperty("virtualHostSeparator") + instanceName
self.semaphore = Semaphore(0)
self.queueRequest = Queue()
self.queueReturn = Queue()
def __init__(self, state):
self.state = state
credentials = PlainCredentials(
RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName"),
RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName"))
parameters = pika.ConnectionParameters(
host=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerBrokerHost"),
virtual_host=self.state.vhost,
credentials=credentials)
# instantiate a connection
logging.debug("GameLogicServer] WorkerChannel - Starting a connection")
self.connection = pika.BlockingConnection(parameters=parameters)
logging.debug("GameLogicServer] WorkerChannel - Creating a channel")
self.channel = self.connection.channel()
def on_queue_bind(self, new_queue):
logging.debug("GameLogicServer] Binding declared")
gameLogicServerBindingKey = "*.all.*.*"
self.channel.queue_bind(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
queue=self.queue,
routing_key=gameLogicServerBindingKey,
callback=self.on_queue_bind_all)
def start(self):
# parameters require for the AMQP connection: user name and password...
credentials = PlainCredentials(
RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName"),
RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerUserName"))
parameters = pika.ConnectionParameters(
host=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerBrokerHost"),
virtual_host=self.state.vhost,
credentials=credentials)
# instantiate a connection
connection = SelectConnection(parameters=parameters,
on_open_callback=self.on_connected)
# required behavior on close
connection.add_on_close_callback(self.on_close)
# start the connection
connection.ioloop.start()
def set_permissions_vhost_logginserver(vhost):
return_code = call("rabbitmqctl add_user "
+ RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName")
+ " "
+ RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName"),
shell=True)
if return_code != 0:
if return_code == 2: # User exist
logging.info("GameLogicServer] User " + RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName") + " already exists")
pass
else:
logging.error("GameLogicServer] Problem (" + str(return_code) + ") in adding user "+ RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName"))
exit(1)
return_code = call("rabbitmqctl set_permissions -p "
+ vhost + " " + RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName")
+ grant_all_permissions,
shell=True)
if return_code != 0:
logging.error("GameLogicServer] Problem (" + str(return_code) + ") in setting permissions for logging server")
exit(1)
def joinWithObservationKey(self, login, observationKey):
logging.info("GameLogicServer] Joining of " + login)
self.channel.queue_declare(queue=login)
logging.debug("GameLogicServer] Queue declared for " + login)
logging.debug("GameLogicServer] Observation key is " + observationKey)
self.channel.queue_bind(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
queue=login,
routing_key=observationKey)
logging.debug("GameLogicServer] First queue bound on for " + login)
observationKey = "*.all.*.*"
logging.debug("GameLogicServer] Binding key for broadcasts is " +
observationKey)
self.channel.queue_bind(
exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
queue=login,
routing_key=observationKey)
logging.debug(" GameLogicServer] Second queue bound on for " + login)
self.publish(login, self.state, "join.joinOK", login + " has joined")
def setLogger():
loggingLevel = RabbitMQConfiguration(confDir).getRabbitMQProperty("loggingLevel")
if(loggingLevel == "DEBUG"):
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.DEBUG)
elif(loggingLevel == "INFO"):
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.INFO)
elif(loggingLevel == "WARNING"):
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.WARNING)
elif(loggingLevel == "ERROR"):
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.ERROR)
elif(loggingLevel == "CRITICAL"):
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.CRITICAL)
else:
logging.basicConfig(format='[%(levelname)s - %(message)s', level=logging.INFO)
def createLoggingServer(gameName, instanceName):
logging.info("GameLogicServer] Creating Logging server for " + gameName +
" " + instanceName)
vhost = RabbitMQConfiguration().getRabbitMQProperty(
"virtualHostSeparator") + gameName + RabbitMQConfiguration(
).getRabbitMQProperty("virtualHostSeparator") + instanceName
credentials = PlainCredentials(
RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName"),
RabbitMQConfiguration().getRabbitMQProperty("loggingServerUserName"))
parameters = pika.ConnectionParameters(
host=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerBrokerHost"),
virtual_host=vhost,
credentials=credentials)
logging.debug("LoggingServer] Starting a connection")
connection = pika.BlockingConnection(parameters=parameters)
logging.debug("LoggingServer] Creating a channel")
channel = connection.channel()
logging.debug(
"LoggingServer] Declaring a queue " +
RabbitMQConfiguration().getRabbitMQProperty("loggingServerQueueName"))
channel.queue_declare(queue=RabbitMQConfiguration().getRabbitMQProperty(
"loggingServerQueueName"),
exclusive=False,
durable=True)
logging.debug(
"LoggingServer] Binding the queue with the rooting key " +
RabbitMQConfiguration().getRabbitMQProperty("loggingServerBindingKey"))
channel.queue_bind(exchange=RabbitMQConfiguration().getRabbitMQProperty(
"gameLogicServerExchangeName"),
queue=RabbitMQConfiguration().getRabbitMQProperty(
"loggingServerQueueName"),
routing_key=RabbitMQConfiguration().getRabbitMQProperty(
"loggingServerBindingKey"))
channel.basic_consume(consumer_callback=handle_delivery_loggingserver,
queue=RabbitMQConfiguration().getRabbitMQProperty(
"loggingServerQueueName"),
no_ack=True)
logging.info(" LoggingServer] Waiting for messages on " + vhost)
channel.start_consuming()
logging.info("LoggingServer] Process terminated")
