def __init__(self, service, *path, **conf):
self.__dict__["service"] = service
self.__dict__["path"] = tuple(path)
for key, value in conf.items():
try:
value = serialize.load(serialize.dump(value))
except serialize.UnregisteredType:
raise SessionError("can not serialize key %r value %r" %
(key, value))
conf[key] = value
self.__dict__["_conf"] = frozenset(conf.items())
def _try_session(inner, self, service_id, *path, **conf):
matches = list()
for jid, service_ids in self.catalogue.items():
if service_id in service_ids:
matches.append(jid)
if matches:
jid = random.choice(matches)
else:
channel = threado.Channel()
self.waiters.setdefault(service_id, set()).add(channel)
try:
while not channel.was_source:
jid = yield inner, channel
finally:
waiters = self.waiters.get(service_id, set())
waiters.discard(channel)
if not waiters:
self.waiters.pop(service_id, None)
start = Element("start", xmlns=SERVICE_NS, id=service_id)
if path:
path_element = Element("path")
path_element.add(serialize.dump(path))
start.add(path_element)
conf_element = Element("config")
conf_element.add(serialize.dump(conf))
start.add(conf_element)
try:
result = yield inner.sub(self.xmpp.core.iq_set(start, to=jid))
except XMPPError, error:
if error.type != "cancel":
raise
inner.finish()
