def link_props_drop(self):
lookup_mask = self._unpack_link_props(key='lookup_mask')
with graph.begin() as tx:
removed_records = link_props_utils.drop_by_mask(tx, lookup_mask)
for link_props in removed_records:
isl = model.InterSwitchLink.new_from_link_props(link_props)
isl_utils.del_props(tx, isl, link_props.props)
response_batch = [
message_utils.make_link_props_response(self.payload, x)
for x in removed_records]
message_utils.send_link_props_chunked_response(
response_batch, self.correlation_id)
def handle_link_props(self):
try:
if self.get_message_type() == CD_LINK_PROPS_PUT:
self.link_props_put()
elif self.get_message_type() == CD_LINK_PROPS_DROP:
self.link_props_drop()
else:
raise exc.NotImplementedError(
'link props request {}'.format(self.get_message_type()))
except CypherSyntaxError as e:
logger.exception('Request produce invalid cypher query')
payload = message_utils.make_link_props_response(
self.payload, None, 'Invalid request')
message_utils.send_link_props_response(
payload, self.correlation_id,
self.get_message_type() == CD_LINK_PROPS_DROP)
except Exception as e:
payload = message_utils.make_link_props_response(
self.payload, None, error=str(e))
message_utils.send_link_props_response(
payload, self.correlation_id,
self.get_message_type() == CD_LINK_PROPS_DROP)
def handle_link_props(self):
try:
if self.get_message_type() == CD_LINK_PROPS_PUT:
self.link_props_put()
elif self.get_message_type() == CD_LINK_PROPS_DROP:
self.link_props_drop()
else:
raise exc.NotImplementedError(
'link props request {}'.format(self.get_message_type()))
except exc.Error as e:
payload = message_utils.make_link_props_response(
self.payload, None, error=str(e))
message_utils.send_link_props_response(
payload, self.correlation_id,
self.get_message_type() == CD_LINK_PROPS_DROP)
def link_props_put(self):
link_props = self._unpack_link_props()
protected = link_props.extract_protected_props()
if protected:
raise exc.UnacceptableDataError(
link_props, 'property(es) %s is can\'t be changed'.format(
', '.join(repr(x) for x in sorted(protected))))
with graph.begin() as tx:
link_props_utils.create_if_missing(tx, link_props)
link_props_utils.set_props_and_propagate_to_isl(tx, link_props)
actual_link_props = link_props_utils.read(tx, link_props)
payload = message_utils.make_link_props_response(
self.payload, actual_link_props)
message_utils.send_link_props_response(payload, self.correlation_id)