def _validate_router_migration(self, context, router_db, router_res):
"""Allow transition only when admin_state_up=False"""
original_distributed_state = router_db.extra_attributes.distributed
requested_distributed_state = router_res.get('distributed', None)
distributed_changed = (
requested_distributed_state is not None and
requested_distributed_state != original_distributed_state)
if not distributed_changed:
return False
if router_db.admin_state_up:
msg = _("Cannot change the 'distributed' attribute of active "
"routers. Please set router admin_state_up to False "
"prior to upgrade")
raise n_exc.BadRequest(resource='router', msg=msg)
# Notify advanced services of the imminent state transition
# for the router.
try:
kwargs = {'context': context, 'router': router_db}
registry.notify(
resources.ROUTER, events.BEFORE_UPDATE, self, **kwargs)
except exceptions.CallbackFailure as e:
# NOTE(armax): preserve old check's behavior
if len(e.errors) == 1:
raise e.errors[0].error
raise l3_exc.RouterInUse(router_id=router_db['id'], reason=e)
return True
def migration_callback(resource, event, trigger, **kwargs):
context = kwargs['context']
router = kwargs['router']
fw_plugin = directory.get_plugin(fwaas_constants.FIREWALL)
if fw_plugin:
tenant_firewalls = fw_plugin.get_firewalls(
context, filters={'tenant_id': [router['tenant_id']]})
if tenant_firewalls:
raise l3.RouterInUse(router_id=router['id'])
def _check_router_not_in_use(self, context, router_id):
try:
kwargs = {'context': context, 'router_id': router_id}
registry.notify(resources.ROUTER, events.BEFORE_DELETE, self,
**kwargs)
except exceptions.CallbackFailure as e:
with excutils.save_and_reraise_exception():
if len(e.errors) == 1:
raise e.errors[0].error
raise l3_exc.RouterInUse(router_id=router_id, reason=e)
def _check_router_not_in_use(self, context, router_id):
try:
registry.publish(
resources.ROUTER, events.BEFORE_DELETE, self,
payload=events.DBEventPayload(context, resource_id=router_id))
except exceptions.CallbackFailure as e:
with excutils.save_and_reraise_exception():
if len(e.errors) == 1:
raise e.errors[0].error
raise l3_exc.RouterInUse(router_id=router_id, reason=e)
def check_router_in_use(self, context, router_id):
vpnservices = self.get_vpnservices(
context, filters={'router_id': [router_id]})
if vpnservices:
plural = "s" if len(vpnservices) > 1 else ""
services = ",".join([v['id'] for v in vpnservices])
raise l3_exception.RouterInUse(
router_id=router_id,
reason="is currently used by VPN service%(plural)s "
"(%(services)s)" % {'plural': plural,
'services': services})
def set_router_for_bgp_speaker(self, context, bgp_sp_id, r_id):
"""Sets the routers associated with the bgp speaker."""
try:
with db_api.context_manager.writer.using(context):
bgp_router_db = model.BgpSpeakerRouterAssociation(
bgp_speaker_id=bgp_sp_id, router_id=r_id)
context.session.add(bgp_router_db)
except db_exc.DBDuplicateEntry:
raise l3_exc.RouterInUse(
router_id=r_id,
reason='is already associated with bgp speaker')
except db_exc.DBReferenceError:
raise l3_exc.RouterNotFound(router_id=r_id)
def bgp_speaker_callback(self, resource, event, trigger, **kwargs):
router_id = kwargs['router_id']
context = kwargs.get('context')
if self.get_bgp_speaker_associated_with_router(context, router_id):
raise l3_exc.RouterInUse(router_id=router_id,
reason='is associated with bgp speaker')
def bgp_speaker_callback(self, resource, event, trigger, payload=None):
router_id = payload.resource_id
context = payload.context
if self.get_bgp_speaker_associated_with_router(context, router_id):
raise l3_exc.RouterInUse(
router_id=router_id, reason='is associated with bgp speaker')