def application(config):
	app = Application("Scrapyd")
	http_port = config.getint('http_port', 6800)
	
	portal = Portal(PublicHTMLRealm(config, app), [FilePasswordDB(str(config.get('passwd', '')))])
	credentialFactory = DigestCredentialFactory("md5", "Go away")
	
	poller = QueuePoller(config)
	eggstorage = FilesystemEggStorage(config)
	scheduler = SpiderScheduler(config)
	environment = Environment(config)
	
	app.setComponent(IPoller, poller)
	app.setComponent(IEggStorage, eggstorage)
	app.setComponent(ISpiderScheduler, scheduler)
	app.setComponent(IEnvironment, environment)
	
	launcher = Launcher(config, app)
	timer = TimerService(5, poller.poll)
	webservice = TCPServer(http_port, server.Site(HTTPAuthSessionWrapper(portal, [credentialFactory])))
	log.msg("Scrapyd web console available at http://localhost:%s/" % http_port)
	
	launcher.setServiceParent(app)
	timer.setServiceParent(app)
	webservice.setServiceParent(app)
	
	return app

 def stopService(self):
     """
     Stop this service. This will release buckets partitions it holds
     """
     TimerService.stopService(self)
     if self.kz_partition.acquired:
         return self.kz_partition.finish()

 def __init__(self, kz_client, interval, partitioner_path, buckets,
              time_boundary, log, got_buckets,
              clock=None):
     """
     :param log: a bound log
     :param kz_client: txKazoo client
     :param partitioner_path: ZooKeeper path, used for partitioning
     :param buckets: iterable of buckets to distribute between
         nodes. Ideally there should be at least as many elements as nodes
         taking part in this partitioner. This should be a sequence of str.
     :param time_boundary: time to wait for partitioning to stabilize.
     :param got_buckets: Callable which will be called with a list of
         buckets when buckets have been allocated to this node.
     :param clock: clock to use for checking the buckets on an interval.
     """
     MultiService.__init__(self)
     self.kz_client = kz_client
     self.partitioner_path = partitioner_path
     self.buckets = buckets
     self.log = log
     self.got_buckets = got_buckets
     self.time_boundary = time_boundary
     ts = TimerService(interval, self.check_partition)
     ts.setServiceParent(self)
     ts.clock = clock
     self._old_buckets = []

    def __init__(self, basedir="."):
        node.Node.__init__(self, basedir)
        self.started_timestamp = time.time()
        self.logSource="Client"
        self.DEFAULT_ENCODING_PARAMETERS = self.DEFAULT_ENCODING_PARAMETERS.copy()
        self.init_introducer_client()
        self.init_stats_provider()
        self.init_secrets()
        self.init_storage()
        self.init_control()
        self.helper = None
        if self.get_config("helper", "enabled", False, boolean=True):
            self.init_helper()
        self._key_generator = KeyGenerator()
        key_gen_furl = self.get_config("client", "key_generator.furl", None)
        if key_gen_furl:
            self.init_key_gen(key_gen_furl)
        self.init_client()
        # ControlServer and Helper are attached after Tub startup
        self.init_ftp_server()
        self.init_sftp_server()

        hotline_file = os.path.join(self.basedir,
                                    self.SUICIDE_PREVENTION_HOTLINE_FILE)
        if os.path.exists(hotline_file):
            age = time.time() - os.stat(hotline_file)[stat.ST_MTIME]
            self.log("hotline file noticed (%ds old), starting timer" % age)
            hotline = TimerService(1.0, self._check_hotline, hotline_file)
            hotline.setServiceParent(self)

        # this needs to happen last, so it can use getServiceNamed() to
        # acquire references to StorageServer and other web-statusable things
        webport = self.get_config("node", "web.port", None)
        if webport:
            self.init_web(webport) # strports string

def application(config):
    app = Application("Scrapyd")
    http_port = config.getint('http_port', 6800)
    bind_address = config.get('bind_address', '0.0.0.0')

    poller = QueuePoller(config)
    eggstorage = FilesystemEggStorage(config)
    scheduler = SpiderScheduler(config)
    environment = Environment(config)

    app.setComponent(IPoller, poller)
    app.setComponent(IEggStorage, eggstorage)
    app.setComponent(ISpiderScheduler, scheduler)
    app.setComponent(IEnvironment, environment)

    laupath = config.get('launcher', 'scrapyd.launcher.Launcher')
    laucls = load_object(laupath)
    launcher = laucls(config, app)

    timer = TimerService(5, poller.poll)
    webservice = TCPServer(http_port, server.Site(Root(config, app)), interface=bind_address)
    log.msg("Scrapyd web console available at http://%s:%s/" % (bind_address, http_port))

    launcher.setServiceParent(app)
    timer.setServiceParent(app)
    webservice.setServiceParent(app)

    return app

def application(config):
	app = Application("Scrapyd")
	http_port = config.getint('http_port', 6800)
	
	poller = QueuePoller(config)
	eggstorage = FilesystemEggStorage(config)
	scheduler = SpiderScheduler(config)
	environment = Environment(config)
	app.setComponent(IPoller, poller)
	app.setComponent(IEggStorage, eggstorage)
	app.setComponent(ISpiderScheduler, scheduler)
	app.setComponent(IEnvironment, environment)
	
	launcher = Launcher(config, app)
	timer = TimerService(5, poller.poll)
	root = Root(config, app)
	root = configRoot(root, config)
	
	webservice = TCPServer(http_port, server.Site(root))
	log.msg("Scrapyd web console available at http://localhost:%s/" % http_port)

	launcher.setServiceParent(app)
	timer.setServiceParent(app)
	webservice.setServiceParent(app)

	return app

def setup_selfheal_service(clock, config, dispatcher, health_checker, log):
    """
    Setup selfheal timer service and return it.

    :param clock: :obj:`IReactorTime` provider
    :param dict config: Configuration dict containing selfheal info
    :param dispatcher: Effect dispatcher
    :param health_checker: ``HealthChecker`` object where SelfHeal's health
        check will be added
    :param log: :obj:`BoundLog` logger used by service

    :return: selfheal service or None if relevant config is not found
    :rtype: :obj:`IService`
    """
    if "selfheal" not in config:
        return None
    interval = get_in(["selfheal", "interval"], config, no_default=True)
    selfheal = SelfHeal(clock, dispatcher, config_value, interval, log)
    func, lock = zk.locked_logged_func(
        dispatcher, "/selfheallock", log, "selfheal-lock-acquired",
        selfheal.setup)
    health_checker.checks["selfheal"] = zk.create_health_check(lock)
    sh_timer = TimerService(interval, func)
    sh_timer.clock = clock
    return sh_timer

def get_application(config):
    app = Application('Scrapyd')
    http_port = config.getint('http_port', 6800)
    bind_address = config.get('bind_address', '0.0.0.0')
    poll_interval = config.getfloat('poll_interval', 5)

    poller = QueuePoller(config)
    eggstorage = FilesystemEggStorage(config)
    scheduler = SpiderScheduler(config)
    environment = Environment(config)

    app.setComponent(IPoller, poller)
    app.setComponent(IEggStorage, eggstorage)
    app.setComponent(ISpiderScheduler, scheduler)
    app.setComponent(IEnvironment, environment)

    laupath = config.get('launcher', 'scrapyd_mongodb.launcher.Launcher')
    laucls = load_object(laupath)
    launcher = laucls(config, app)

    timer = TimerService(poll_interval, poller.poll)
    webservice = TCPServer(
        http_port, server.Site(Root(config, app)),
        interface=bind_address)

    log.msg('http://%(bind_address)s:%(http_port)s/' % {'bind_address':bind_address, 'http_port':http_port})

    launcher.setServiceParent(app)
    timer.setServiceParent(app)
    webservice.setServiceParent(app)

    return app

def application(config, components=interfaces):
    app = Application("Scrapyd")
    http_port = config.getint('http_port', 6800)
    bind_address = config.get('bind_address', '0.0.0.0')

    for interface, key in interfaces:
        path = config.get(key)
        cls = load_object(path)
        component = cls(config)
        app.setComponent(interface, component)
    poller = component
        
    laupath = config.get('launcher', 'scrapyd.launcher.Launcher')
    laucls = load_object(laupath) 
    launcher = laucls(config, app)

    poll_every = config.getint("poll_every", 5)
    timer = TimerService(poll_every, poller.poll)
    
    webservice = TCPServer(http_port, server.Site(Root(config, app)), interface=bind_address)
    log.msg(format="Scrapyd web console available at http://%(bind_address)s:%(http_port)s/",
            bind_address=bind_address, http_port=http_port)

    launcher.setServiceParent(app)
    timer.setServiceParent(app)
    webservice.setServiceParent(app)

    return app

def application(config):
    app = Application("Scrapyd")
    http_port = int(environ.get('PORT', config.getint('http_port', 6800)))
    config.cp.set('scrapyd', 'database_url', environ.get('DATABASE_URL'))

    poller = Psycopg2QueuePoller(config)
    eggstorage = FilesystemEggStorage(config)
    scheduler = Psycopg2SpiderScheduler(config)
    environment = Environment(config)

    app.setComponent(IPoller, poller)
    app.setComponent(IEggStorage, eggstorage)
    app.setComponent(ISpiderScheduler, scheduler)
    app.setComponent(IEnvironment, environment)

    launcher = Launcher(config, app)
    timer = TimerService(5, poller.poll)
    webservice = TCPServer(http_port, server.Site(Root(config, app)))
    log.msg("Scrapyd web console available at http://localhost:%s/ (HEROKU)"
        % http_port)

    launcher.setServiceParent(app)
    timer.setServiceParent(app)
    webservice.setServiceParent(app)

    return app

 def startService(self):
     """
     Start this service. This will start buckets partitioning
     """
     self.kz_partition = self.kz_client.SetPartitioner(
         self.zk_partition_path, set=set(self.buckets),
         time_boundary=self.time_boundary)
     TimerService.startService(self)

 def __init__(self, reactor):
     MultiService.__init__(self)
     self._deployment_state = DeploymentState()
     timer = TimerService(1, self._wipe_expired)
     timer.clock = reactor
     timer.setServiceParent(self)
     self._information_wipers = pmap()
     self._clock = reactor

 def __init__(self, poller=None, step=300):
     """
     """
     if poller is None:
         raise RuntimeError('poller cannot be None')
     if not issubclass(type(poller), IPoll):
         raise TypeError('poller privided is not a subclass of IPoll')
     self._poller = poller
     TimerService.__init__(self, step=step, callable=self._poller.poll)

 def __init__(self, poller=None, step=60*5):
     """ The magic here is calling the TimerService constructor (old
         style class) to set the polling interval and specify the polling
         function.
     """
     if poller is None:
         raise RuntimeError('poller cannot be None')
     if not issubclass(type(poller), IPoll):
         raise TypeError('poller provided is not a subclass of IPoll');
     self._poller = poller
     TimerService.__init__(self, step=step, callable=self._poller.poll)

 def __init__(self, reactor, interval, k8s, namespace, router):
     TimerService.__init__(
         self,
         interval,
         divert_errors_to_log(self._check_once, u"router-update"),
         k8s,
         namespace,
     )
     # This attribute controls the the reactor used by TimerService to set
     # up the LoopingCall.
     self.clock = reactor
     self._router = router

class StatsGatherer(Referenceable, service.MultiService):
    implements(RIStatsGatherer)

    poll_interval = 60

    def __init__(self, basedir):
        service.MultiService.__init__(self)
        self.basedir = basedir

        self.clients = {}
        self.nicknames = {}

        self.timer = TimerService(self.poll_interval, self.poll)
        self.timer.setServiceParent(self)

    def get_tubid(self, rref):
        return rref.getRemoteTubID()

    def remote_provide(self, provider, nickname):
        tubid = self.get_tubid(provider)
        if tubid == '<unauth>':
            print "WARNING: failed to get tubid for %s (%s)" % (provider,
                                                                nickname)
            # don't add to clients to poll (polluting data) don't care about disconnect
            return
        self.clients[tubid] = provider
        self.nicknames[tubid] = nickname

    def poll(self):
        for tubid, client in self.clients.items():
            nickname = self.nicknames.get(tubid)
            d = client.callRemote('get_stats')
            d.addCallbacks(
                self.got_stats,
                self.lost_client,
                callbackArgs=(tubid, nickname),
                errbackArgs=(tubid, ))
            d.addErrback(self.log_client_error, tubid)

    def lost_client(self, f, tubid):
        # this is called lazily, when a get_stats request fails
        del self.clients[tubid]
        del self.nicknames[tubid]
        f.trap(DeadReferenceError)

    def log_client_error(self, f, tubid):
        log.msg(
            "StatsGatherer: error in get_stats(), peerid=%s" % tubid,
            level=log.UNUSUAL,
            failure=f)

    def got_stats(self, stats, tubid, nickname):
        raise NotImplementedError()

 def __init__(self, all_stations, base_config, base_dir, poll_length, file_pattern,
              send_command, command_helper, complete_command, failed_command):
     TimerService.__init__(self, poll_length, self.run_poll)
     self.log = log
     self.all_stations = all_stations
     self.base_config = dict(base_config)
     self.base_folder = base_dir
     self.file_pattern = file_pattern
     self.send_command = send_command
     self.complete_command = complete_command
     self.failed_command = failed_command
     self.command_helper = command_helper

    def __init__(self, config, main_tub, control_tub, i2p_provider, tor_provider, introducer_clients,
                 storage_farm_broker):
        """
        Use :func:`allmydata.client.create_client` to instantiate one of these.
        """
        node.Node.__init__(self, config, main_tub, control_tub, i2p_provider, tor_provider)

        self._magic_folders = dict()
        self.started_timestamp = time.time()
        self.logSource = "Client"
        self.encoding_params = self.DEFAULT_ENCODING_PARAMETERS.copy()

        self.introducer_clients = introducer_clients
        self.storage_broker = storage_farm_broker

        self.init_stats_provider()
        self.init_secrets()
        self.init_node_key()
        self.init_storage()
        self.init_control()
        self._key_generator = KeyGenerator()
        key_gen_furl = config.get_config("client", "key_generator.furl", None)
        if key_gen_furl:
            log.msg("[client]key_generator.furl= is now ignored, see #2783")
        self.init_client()
        self.load_static_servers()
        self.helper = None
        if config.get_config("helper", "enabled", False, boolean=True):
            if not self._is_tub_listening():
                raise ValueError("config error: helper is enabled, but tub "
                                 "is not listening ('tub.port=' is empty)")
            self.init_helper()
        self.init_ftp_server()
        self.init_sftp_server()
        self.init_magic_folder()

        # If the node sees an exit_trigger file, it will poll every second to see
        # whether the file still exists, and what its mtime is. If the file does not
        # exist or has not been modified for a given timeout, the node will exit.
        exit_trigger_file = config.get_config_path(self.EXIT_TRIGGER_FILE)
        if os.path.exists(exit_trigger_file):
            age = time.time() - os.stat(exit_trigger_file)[stat.ST_MTIME]
            self.log("%s file noticed (%ds old), starting timer" % (self.EXIT_TRIGGER_FILE, age))
            exit_trigger = TimerService(1.0, self._check_exit_trigger, exit_trigger_file)
            exit_trigger.setServiceParent(self)

        # this needs to happen last, so it can use getServiceNamed() to
        # acquire references to StorageServer and other web-statusable things
        webport = config.get_config("node", "web.port", None)
        if webport:
            self.init_web(webport) # strports string

    def __init__(self, batchsize, interval, slv_client, clock=None):
        """
        Initializes the scheduler service with batch size and interval

        :param int batchsize: number of events to fetch on each iteration
        :param int interval: time between each iteration
        :param slv_client: a :class:`silverberg.client.CQLClient` or
                    :class:`silverberg.cluster.RoundRobinCassandraCluster` instance used to get lock
        :param clock: An instance of IReactorTime provider that defaults to reactor if not provided
        """
        from otter.models.cass import LOCK_TABLE_NAME
        self.lock = BasicLock(slv_client, LOCK_TABLE_NAME, 'schedule', max_retry=0)
        TimerService.__init__(self, interval, self.check_for_events, batchsize)
        self.clock = clock
        self.log = otter_log.bind(system='otter.scheduler')

 def test_pickleTimerServiceNotPickleLoopFinished(self):
     """
     When pickling L{internet.TimerService}, it won't pickle
     L{internet.TimerService._loopFinished}.
     """
     # We need a pickleable callable to test pickling TimerService. So we
     # can't use self.timer
     timer = TimerService(1, fakeTargetFunction)
     timer.startService()
     dumpedTimer = pickle.dumps(timer)
     timer.stopService()
     loadedTimer = pickle.loads(dumpedTimer)
     nothing = object()
     value = getattr(loadedTimer, "_loopFinished", nothing)
     self.assertIdentical(nothing, value)