def new_subscriber(self, subscriber):
notify = []
for vdict in self._variables.values():
notify += [v for v in vdict.values() if v.send_events == True]
self.info("new_subscriber", subscriber, notify)
if len(notify) <= 0:
return
root = ET.Element('e:propertyset')
root.attrib['xmlns:e']='urn:schemas-upnp-org:event-1-0'
evented_variables = 0
for n in notify:
e = ET.SubElement( root, 'e:property')
if n.name == 'LastChange':
if subscriber['seq'] == 0:
text = self.build_last_change_event(n.instance, force=True)
else:
text = self.build_last_change_event(n.instance)
if text is not None:
ET.SubElement( e, n.name).text = text
evented_variables += 1
else:
ET.SubElement( e, n.name).text = str(n.value)
evented_variables += 1
if evented_variables > 0:
xml = ET.tostring( root, encoding='utf-8')
d,p = event.send_notification(subscriber, xml)
self._pending_notifications[d] = p
d.addBoth(self.rm_notification,d)
self._subscribers[subscriber['sid']] = subscriber
def process_value(result):
variable.update(result)
if default == True:
variable.default_value = variable.value
if(variable.send_events == True and
variable.moderated == False and
len(self._subscribers) > 0):
xml = self.build_single_notification(instance, variable_name, variable.value)
for s in self._subscribers.values():
d,p = event.send_notification(s, xml)
self._pending_notifications[d] = p
d.addBoth(self.rm_notification,d)
def propagate_notification(self, notify):
#print "propagate_notification", notify
if len(self._subscribers) <= 0:
return
if len(notify) <= 0:
return
root = ET.Element('e:propertyset')
root.attrib['xmlns:e']='urn:schemas-upnp-org:event-1-0'
if isinstance( notify, variable.StateVariable):
notify = [notify,]
evented_variables = 0
for n in notify:
e = ET.SubElement( root, 'e:property')
if n.name == 'LastChange':
text = self.build_last_change_event(instance=n.instance)
if text is not None:
ET.SubElement( e, n.name).text = text
evented_variables += 1
else:
s = ET.SubElement( e, n.name).text = str(n.value)
evented_variables += 1
if n.dependant_variable != None:
dependants = n.dependant_variable.get_allowed_values()
if dependants != None and len(dependants) > 0:
s.attrib['channel']=dependants[0]
if evented_variables == 0:
return
xml = ET.tostring( root, encoding='utf-8')
#print "propagate_notification", xml
for s in self._subscribers.values():
d,p = event.send_notification(s,xml)
self._pending_notifications[d] = p
d.addBoth(self.rm_notification,d)
