def lsn_get(self, context, network_id, raise_on_err=True):
try:
obj = lsn_db.lsn_get_for_network(
context, network_id, raise_on_err=raise_on_err)
return obj.lsn_id if obj else None
except p_exc.LsnNotFound:
with excutils.save_and_reraise_exception() as ctxt:
ctxt.reraise = False
if self.sync_on_missing:
lsn_id = super(PersistentLsnManager, self).lsn_get(
context, network_id, raise_on_err=raise_on_err)
self.lsn_save(context, network_id, lsn_id)
return lsn_id
if raise_on_err:
ctxt.reraise = True
def test_lsn_get_for_network(self):
result = lsn_db.lsn_get_for_network(self.ctx, self.net_id,
raise_on_err=False)
self.assertIsNone(result)
