def get_bridge_name_for_port_name(self, port_name):
try:
return self.run_vsctl(['port-to-br', port_name], check_error=True)
except RuntimeError as e:
with utils.save_and_reraise_exception() as ctxt:
if 'Exit code: 1\n' in str(e):
ctxt.reraise = False
def get_bridges():
args = ["ovs-vsctl", "--timeout=%d" % cfg.CONF.ovs_vsctl_timeout,
"list-br"]
try:
return utils.execute(args).strip().split("\n")
except Exception as e:
with utils.save_and_reraise_exception():
LOG.exception(_("Unable to retrieve bridges. Exception: %s"), e)
def bridge_exists(self, bridge_name):
try:
self.run_vsctl(['br-exists', bridge_name], check_error=True)
except RuntimeError as e:
with utils.save_and_reraise_exception() as ctxt:
if 'Exit code: 2\n' in str(e):
ctxt.reraise = False
return False
return True
def __init__(self, **kwargs):
try:
super(NeutronException, self).__init__(self.message % kwargs)
self.msg = self.message % kwargs
except Exception:
with utils.save_and_reraise_exception() as ctxt:
if not self.use_fatal_exceptions():
ctxt.reraise = False
# at least get the core message out if something happened
super(NeutronException, self).__init__(self.message)
def get_xapi_iface_id(self, xs_vif_uuid):
args = ["xe", "vif-param-get", "param-name=other-config",
"param-key=nicira-iface-id", "uuid=%s" % xs_vif_uuid]
try:
return utils.execute(args).strip()
except Exception as e:
with utils.save_and_reraise_exception():
LOG.error(_("Unable to execute %(cmd)s. "
"Exception: %(exception)s"),
{'cmd': args, 'exception': e})
def run_vsctl(self, args, check_error=False):
full_args = ["ovs-vsctl", "--timeout=%d" % self.vsctl_timeout] + args
try:
return utils.execute(full_args)
except Exception as e:
with utils.save_and_reraise_exception() as ctxt:
LOG.error(_("Unable to execute %(cmd)s. "
"Exception: %(exception)s"),
{'cmd': full_args, 'exception': e})
if not check_error:
ctxt.reraise = False