def startService(self):
       """Start All AppManager Services"""
       if self.scanning.called: #need to pre-populate values
           self.scanning = defer.maybeDeferred(self._first_scan)
       self.first_run = True
       self._task = task.LoopingCall(self.scan_app_instances)

       #plugins will be created and loaded when needed
       for shortname in config.APPLICATIONS.keys():
           manager = None
           try:
               applog = logWithContext(type=shortname,route=SERVICENAME)
               applog('Loading Application Plugin')
               applog('Creating Application Manager')
               manager = AppManager(shortname)
               manager.parentService = self
               #check and see if the model is bound
               if not AppManager(shortname).running:
                   applog('Starting Application Manager')
                   manager.start()
           except:
               failure = Failure()
               #bad plugin, not adaptable
               failures = (InvalidPlugin, TypeError)
               if failure.check(*failures) and manager:
                   log('plugin for %s is invalid' % (manager.name,))
                   manager.action.__class__.delete(manager.action)
                   try: pluginFactory.delete_plugin(manager.model)
                   except: pass #silence
                   AppManager.delete(manager)
                   if not config.EXCESSIVE_LOGGING: continue #avoid extra logging
               try: failure.raiseException()
               except: crashReport('ApplicationLoader', self)
       Service.startService(self)
       Event('instance-started').subscribe(self.reset_tracking)
       #wire allapps action into the server
       drone.builtins.update({
           'allapps': self.allapps_action,
           'applist': self.applist_action,
       })
       #delay scanning by some interval
       config.reactor.callLater(SERVICECONFIG.initial_delay, self._start_all_tasks)
dataset/ETHPy150Open OrbitzWorldwide/droned/droned/services/application.py/ApplicationLoader.startService/original