def __init__(self, name):
# set name
self.__name = name
# logger
self.logger = Activator().getInstance('LoggerFactory').getLogger('Dispatcher')
# onStop-delegates
self.__onStopDelegates = []
# request-queue
self.__queueRequest = Queue()
# request-handler
self.__requestHandler = RequestHandler(self.logger)
# running-flag
self.__running = False
# request-count
self.requestCount = 0
# thread
self.__thread = Thread(target = self.run)
self.__thread.setName(self.__name)
self.__thread.setDaemon(True)
class Dispatcher(IActivator):
# instance
Instance = None
# lock
InstanceLock = Lock()
""" -------------------------------------------------------------------- """
""" __new__ """
""" -------------------------------------------------------------------- """
def __new__(cls, *p, **k):
if Dispatcher.Instance is None:
Dispatcher.Instance = object.__new__(cls, *p, **k)
return Dispatcher.Instance
""" -------------------------------------------------------------------- """
""" __init__ """
""" -------------------------------------------------------------------- """
def __init__(self, name):
# set name
self.__name = name
# logger
self.logger = Activator().getInstance('LoggerFactory').getLogger('Dispatcher')
# onStop-delegates
self.__onStopDelegates = []
# request-queue
self.__queueRequest = Queue()
# request-handler
self.__requestHandler = RequestHandler(self.logger)
# running-flag
self.__running = False
# request-count
self.requestCount = 0
# thread
self.__thread = Thread(target = self.run)
self.__thread.setName(self.__name)
self.__thread.setDaemon(True)
""" -------------------------------------------------------------------- """
""" getName """
""" -------------------------------------------------------------------- """
def getName(self):
return self.__name
""" -------------------------------------------------------------------- """
""" start """
""" -------------------------------------------------------------------- """
def start(self):
# log
self.logger.info('Starting...')
# start thread
self.__thread.start()
""" -------------------------------------------------------------------- """
""" stop """
""" -------------------------------------------------------------------- """
def stop(self):
# running-flag
self.__running = False
# join
self.__thread.join(2.0)
# shutdown if still alive
if self.__thread.isAlive():
self.shutdown()
""" -------------------------------------------------------------------- """
""" run """
""" -------------------------------------------------------------------- """
def run(self):
# running-flag
self.__running = True
# debug
self.logger.info("up and running")
# main-loop
while self.__running:
# process queue
try:
# get and process request
request = self.__queueRequest.get()
# handle request
self.__running = self.__requestHandler.handleRequest(request)
except Empty, emp:
self.logger.error("request-queue is empty (%s)" % emp)
except Exception, e:
self.logger.error("failed to process request (%s)" % e)
