def __init__(self,
moduleName,
context=None,
centralSubscribeEndpoint=PUBLISHER_OPT_DEFAULTS[
'centralSubscribeEndpoint'],
publishEndpoint=PUBLISHER_OPT_DEFAULTS['publishEndpoint'],
heartbeatPeriodMsecs=PUBLISHER_OPT_DEFAULTS[
'heartbeatPeriodMsecs'],
highWaterMark=PUBLISHER_OPT_DEFAULTS['highWaterMark']):
self.moduleName = moduleName
if context is None:
context = zmq.Context.instance()
self.context = context
self.centralSubscribeEndpoint = parseEndpoint(
centralSubscribeEndpoint,
defaultPort=DEFAULT_CENTRAL_SUBSCRIBE_PORT)
self.publishEndpoint = parseEndpoint(publishEndpoint,
defaultPort='random')
self.heartbeatPeriodMsecs = heartbeatPeriodMsecs
self.highWaterMark = highWaterMark
self.pubStream = None
self.heartbeatTimer = None
self.serializer = serializers.get_serializer('json')()
def __init__(self,
moduleName,
context=None,
centralSubscribeEndpoint=PUBLISHER_OPT_DEFAULTS['centralSubscribeEndpoint'],
publishEndpoint=PUBLISHER_OPT_DEFAULTS['publishEndpoint'],
heartbeatPeriodMsecs=PUBLISHER_OPT_DEFAULTS['heartbeatPeriodMsecs'],
highWaterMark=PUBLISHER_OPT_DEFAULTS['highWaterMark']):
self.moduleName = moduleName
if context is None:
context = zmq.Context.instance()
self.context = context
self.centralSubscribeEndpoint = parseEndpoint(centralSubscribeEndpoint,
defaultPort=DEFAULT_CENTRAL_SUBSCRIBE_PORT)
self.publishEndpoint = parseEndpoint(publishEndpoint,
defaultPort='random')
self.heartbeatPeriodMsecs = heartbeatPeriodMsecs
self.highWaterMark = highWaterMark
self.pubStream = None
self.heartbeatTimer = None
self.serializer = serializers.get_serializer('json')()
def __init__(self,
moduleName,
context=None,
centralPublishEndpoint=SUBSCRIBER_OPT_DEFAULTS['centralPublishEndpoint']):
self.moduleName = moduleName
if context is None:
context = zmq.Context.instance()
self.context = context
self.centralPublishEndpoint = parseEndpoint(centralPublishEndpoint,
defaultPort=DEFAULT_CENTRAL_PUBLISH_PORT)
self.handlers = {}
self.counter = 0
self.deserializer = serializers.get_deserializer('json')
def __init__(self,
moduleName,
context=None,
centralPublishEndpoint=SUBSCRIBER_OPT_DEFAULTS[
'centralPublishEndpoint'],
replay=None):
self.moduleName = moduleName
if context is None:
context = zmq.Context.instance()
self.context = context
self.centralPublishEndpoint = parseEndpoint(
centralPublishEndpoint, defaultPort=DEFAULT_CENTRAL_PUBLISH_PORT)
self.replayPaths = replay
if self.replayPaths is None:
self.replayPaths = []
self.handlers = {}
self.counter = 0
self.deserializer = serializers.get_deserializer('json')
def start(self):
# open log files
now = datetime.datetime.utcnow()
self.logDir = os.path.abspath(self.opts.logDir)
self.messageLogPath = self.readyLog(self.opts.messageLog, now)
self.messageLog = open(self.messageLogPath, 'a')
self.consoleLogPath = self.readyLog(self.opts.consoleLog, now)
rootLogger = logging.getLogger()
rootLogger.setLevel(logging.DEBUG)
fmt = logging.Formatter('%(asctime)s - %(levelname)-7s - %(message)s')
fmt.converter = time.gmtime
fh = logging.FileHandler(self.consoleLogPath)
fh.setFormatter(fmt)
fh.setLevel(logging.DEBUG)
rootLogger.addHandler(fh)
if self.opts.foreground:
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
ch.setFormatter(fmt)
rootLogger.addHandler(ch)
# daemonize
if self.opts.foreground:
logging.info('staying in foreground')
else:
logging.info('daemonizing')
pid = os.fork()
if pid != 0:
os._exit(0)
os.setsid()
pid = os.fork()
if pid != 0:
os._exit(0)
os.chdir('/')
os.close(1)
os.close(2)
nullFd = os.open('/dev/null', os.O_RDWR)
os.dup2(nullFd, 1)
os.dup2(nullFd, 2)
try:
# set up zmq
self.context = zmq.Context.instance()
self.rpcStream = ZMQStream(self.context.socket(zmq.REP))
self.rpcStream.bind(self.opts.rpcEndpoint)
self.rpcStream.on_recv(self.handleRpcCall)
self.forwarder = ThreadDevice(zmq.FORWARDER, zmq.SUB, zmq.PUB)
self.forwarder.setsockopt_in(zmq.IDENTITY, THIS_MODULE)
self.forwarder.setsockopt_out(zmq.IDENTITY, THIS_MODULE)
self.forwarder.setsockopt_in(zmq.SUBSCRIBE, '')
self.forwarder.setsockopt_out(zmq.HWM, self.opts.highWaterMark)
self.forwarder.bind_in(self.opts.subscribeEndpoint)
self.forwarder.bind_in(INJECT_ENDPOINT)
self.forwarder.bind_out(self.opts.publishEndpoint)
self.forwarder.bind_out(MONITOR_ENDPOINT)
for entry in self.opts.subscribeTo:
try:
moduleName, endpoint = entry.split('@')
endpoint = parseEndpoint(endpoint)
except ValueError:
raise ValueError(
'--subscribeTo argument "%s" is not in the format "<moduleName>@<endpoint>"'
% entry)
self.forwarder.connect_in(endpoint)
self.info[moduleName] = {'module': moduleName, 'pub': endpoint}
self.forwarder.start()
time.sleep(0.1) # wait for forwarder to bind sockets
self.monStream = ZMQStream(self.context.socket(zmq.SUB))
self.monStream.setsockopt(zmq.SUBSCRIBE, '')
self.monStream.connect(MONITOR_ENDPOINT)
self.monStream.on_recv(self.handleMessages)
self.injectStream = ZMQStream(self.context.socket(zmq.PUB))
self.injectStream.connect(INJECT_ENDPOINT)
self.disconnectTimer = ioloop.PeriodicCallback(
self.handleDisconnectTimer, 5000)
self.disconnectTimer.start()
except: # pylint: disable=W0702
errClass, errObject, errTB = sys.exc_info()[:3]
errText = '%s.%s: %s' % (errClass.__module__, errClass.__name__,
str(errObject))
logging.error(''.join(traceback.format_tb(errTB)))
logging.error(errText)
logging.error('[error during startup -- exiting]')
sys.exit(1)
def start(self):
# open log files
now = datetime.datetime.utcnow()
self.logDir = os.path.abspath(self.opts.logDir)
self.messageLogPath = self.readyLog(self.opts.messageLog, now)
self.messageLog = open(self.messageLogPath, 'a')
self.consoleLogPath = self.readyLog(self.opts.consoleLog, now)
rootLogger = logging.getLogger()
rootLogger.setLevel(logging.DEBUG)
fmt = logging.Formatter('%(asctime)s - %(levelname)-7s - %(message)s')
fmt.converter = time.gmtime
fh = logging.FileHandler(self.consoleLogPath)
fh.setFormatter(fmt)
fh.setLevel(logging.DEBUG)
rootLogger.addHandler(fh)
if self.opts.foreground:
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
ch.setFormatter(fmt)
rootLogger.addHandler(ch)
# daemonize
if self.opts.foreground:
logging.info('staying in foreground')
else:
logging.info('daemonizing')
pid = os.fork()
if pid != 0:
os._exit(0)
os.setsid()
pid = os.fork()
if pid != 0:
os._exit(0)
os.chdir('/')
os.close(1)
os.close(2)
nullFd = os.open('/dev/null', os.O_RDWR)
os.dup2(nullFd, 1)
os.dup2(nullFd, 2)
try:
# set up zmq
self.context = zmq.Context.instance()
self.rpcStream = ZMQStream(self.context.socket(zmq.REP))
self.rpcStream.bind(self.opts.rpcEndpoint)
self.rpcStream.on_recv(self.handleRpcCall)
self.forwarder = ThreadDevice(zmq.FORWARDER, zmq.SUB, zmq.PUB)
self.forwarder.setsockopt_in(zmq.IDENTITY, THIS_MODULE)
self.forwarder.setsockopt_out(zmq.IDENTITY, THIS_MODULE)
self.forwarder.setsockopt_in(zmq.SUBSCRIBE, '')
self.forwarder.setsockopt_out(zmq.HWM, self.opts.highWaterMark)
self.forwarder.bind_in(self.opts.subscribeEndpoint)
self.forwarder.bind_in(INJECT_ENDPOINT)
self.forwarder.bind_out(self.opts.publishEndpoint)
self.forwarder.bind_out(MONITOR_ENDPOINT)
for entry in self.opts.subscribeTo:
try:
moduleName, endpoint = entry.split('@')
endpoint = parseEndpoint(endpoint)
except ValueError:
raise ValueError('--subscribeTo argument "%s" is not in the format "<moduleName>@<endpoint>"' % entry)
self.forwarder.connect_in(endpoint)
self.info[moduleName] = {'module': moduleName,
'pub': endpoint}
self.forwarder.start()
time.sleep(0.1) # wait for forwarder to bind sockets
self.monStream = ZMQStream(self.context.socket(zmq.SUB))
self.monStream.setsockopt(zmq.SUBSCRIBE, '')
self.monStream.connect(MONITOR_ENDPOINT)
self.monStream.on_recv(self.handleMessages)
self.injectStream = ZMQStream(self.context.socket(zmq.PUB))
self.injectStream.connect(INJECT_ENDPOINT)
self.disconnectTimer = ioloop.PeriodicCallback(self.handleDisconnectTimer, 5000)
self.disconnectTimer.start()
except: # pylint: disable=W0702
errClass, errObject, errTB = sys.exc_info()[:3]
errText = '%s.%s: %s' % (errClass.__module__,
errClass.__name__,
str(errObject))
logging.error(''.join(traceback.format_tb(errTB)))
logging.error(errText)
logging.error('[error during startup -- exiting]')
sys.exit(1)