def handle_request(self, topic, message):
if topic == self.subtopic:
# event from proxy received
try:
data = etree.fromstring(message, PluginRegistry.getEventParser())
event_type = stripNs(data.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
if event_type == "ClientLeave":
proxy_id = str(data.ClientLeave.Id)
registry = PluginRegistry.getInstance("BackendRegistry")
registry.unregisterBackend(proxy_id)
except etree.XMLSyntaxError as e:
self.log.error("Event parsing error: %s" % e)
elif topic.startswith(self.subtopic):
response_topic = "%s/response" % "/".join(topic.split("/")[0:4])
try:
id_, res = self.process(topic, message)
if is_future(res):
res = yield res
response = dumps({"result": res, "id": id_})
self.log.debug("MQTT-RPC response: %s on topic %s" % (response, topic))
except Exception as e:
err = str(e)
self.log.error("MQTT RPC call error: %s" % err)
response = dumps({'id': topic.split("/")[-2], 'error': err})
# Get rid of it...
self.mqtt.send_message(response, topic=response_topic, qos=2)
else:
self.log.warning("unhandled topic request received: %s" % topic)
def __traverse_node(cls, node):
res = {}
for n in node:
for child in n.iterchildren():
tag = stripNs(child.tag)
val = child.text if child.countchildren(
) == 0 else cls.__traverse_node(child)
if tag in res:
if isinstance(res[tag], list):
res[tag].append(val)
else:
res[tag] = val
return res
def notify(cls, xml, channel='broadcast'):
eventType = stripNs(
xml.xpath('/g:Event/*',
namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
func = getattr(cls, "_handle" +
eventType) if hasattr(cls, "_handle" +
eventType) else None
if func is not None:
func(xml, channel)
else:
# default handling
root = getattr(xml, eventType)
message = cls.__traverse_node(root)
SseHandler.send_message(message, topic=eventType, channel=channel)
def __eventProcessor(self, topic, message):
if message[0:1] == "{":
# RPC response
self.log.debug("RPC response received in channel %s: '%s'" % (topic, message))
else:
try:
data = etree.fromstring(message, PluginRegistry.getEventParser())
eventType = stripNs(data.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
self.log.debug("'%s' event received from local MQTT broker" % eventType)
if hasattr(self, "_handle"+eventType):
func = getattr(self, "_handle" + eventType)
func(data)
else:
self.log.debug("unhandled event %s" % eventType)
except etree.XMLSyntaxError as e:
self.log.error("XML parse error %s on message %s" % (e, message))
def __eventProcessor(self, topic, message):
if message[0:1] == "{":
# RPC response
self.log.debug("RPC response received in channel %s: '%s'" % (topic, message))
else:
try:
data = etree.fromstring(message, PluginRegistry.getEventParser())
eventType = stripNs(data.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
self.log.debug("Incoming MQTT event[%s]: '%s'" % (eventType, data))
if hasattr(self, "_handle"+eventType):
func = getattr(self, "_handle" + eventType)
func(data)
else:
self.log.debug("unhandled event %s" % eventType)
except etree.XMLSyntaxError as e:
self.log.error("XML parse error %s on message %s" % (e, message))
def handle_request(self, topic, message):
if topic == self.subtopic:
# event from proxy received
try:
data = etree.fromstring(message,
PluginRegistry.getEventParser())
event_type = stripNs(
data.xpath(
'/g:Event/*',
namespaces={'g':
"http://www.gonicus.de/Events"})[0].tag)
if event_type == "ClientLeave":
proxy_id = str(data.ClientLeave.Id)
registry = PluginRegistry.getInstance("BackendRegistry")
registry.unregisterBackend(proxy_id)
except etree.XMLSyntaxError as e:
self.log.error("Event parsing error: %s" % e)
elif topic.startswith(self.subtopic):
response_topic = "%s/response" % "/".join(topic.split("/")[0:4])
try:
id_, res = self.process(topic, message)
response = dumps({"result": res, "id": id_})
except Exception as e:
err = str(e)
self.log.error("MQTT RPC call error: %s" % err)
response = dumps({'id': topic.split("/")[-2], 'error': err})
# Get rid of it...
self.mqtt.send_message(response, topic=response_topic)
else:
self.log.warning("unhandled topic request received: %s" % topic)
def test_ping(self):
# just wait a second and test if the first ping has been sent
time.sleep(1)
args, kwargs = mocked_handler.send_event.call_args
assert stripNs(args[0].xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag) == "ClientPing"
def test_reAnnounce(self):
self.mqtt.reAnnounce()
print(mocked_handler.send_event.call_args)
args, kwargs = mocked_handler.send_event.call_args
assert stripNs(args[0].xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag) == "UserSession"
def _get_type(self, event):
return stripNs(event.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
def __eventProcessor(self, data):
eventType = stripNs(data.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
func = getattr(self, "_handle" + eventType)
func(data)
def notify(cls, xml, channel='broadcast'):
eventType = stripNs(xml.xpath('/g:Event/*', namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
func = getattr(cls, "_handle" + eventType)
func(xml, channel)
def notify(cls, xml, channel='broadcast'):
eventType = stripNs(
xml.xpath('/g:Event/*',
namespaces={'g': "http://www.gonicus.de/Events"})[0].tag)
func = getattr(cls, "_handle" + eventType)
func(xml, channel)
