def _vnc_subscribe_callback(self, oper_info):
self._db_resync_done.wait()
dependency_tracker = None
try:
msg = "Notification Message: %s" % (pformat(oper_info))
self.config_log(msg, level=SandeshLevel.SYS_DEBUG)
obj_type = oper_info['type'].replace('-', '_')
obj_class = DBBaseST.get_obj_type_map().get(obj_type)
if obj_class is None:
return
oper = oper_info['oper']
obj_id = oper_info['uuid']
notify_trace = MessageBusNotifyTrace(
request_id=oper_info.get('request_id'),
operation=oper,
uuid=obj_id)
if oper == 'CREATE':
obj_dict = oper_info['obj_dict']
obj_fq_name = ':'.join(obj_dict['fq_name'])
obj = obj_class.locate(obj_fq_name)
if obj is None:
self.config_log('%s id %s fq_name %s not found' %
(obj_type, obj_id, obj_fq_name),
level=SandeshLevel.SYS_INFO)
return
dependency_tracker = DependencyTracker(
DBBaseST.get_obj_type_map(), self._REACTION_MAP)
dependency_tracker.evaluate(obj_type, obj)
elif oper == 'UPDATE':
obj = obj_class.get_by_uuid(obj_id)
old_dt = None
if obj is not None:
old_dt = DependencyTracker(DBBaseST.get_obj_type_map(),
self._REACTION_MAP)
old_dt.evaluate(obj_type, obj)
else:
self.config_log('%s id %s not found' % (obj_type, obj_id),
level=SandeshLevel.SYS_INFO)
return
try:
obj.update()
except NoIdError:
self.config_log('%s id %s update caused NoIdError' %
(obj_type, obj_id),
level=SandeshLevel.SYS_INFO)
return
dependency_tracker = DependencyTracker(
DBBaseST.get_obj_type_map(), self._REACTION_MAP)
dependency_tracker.evaluate(obj_type, obj)
if old_dt:
for resource, ids in old_dt.resources.items():
if resource not in dependency_tracker.resources:
dependency_tracker.resources[resource] = ids
else:
dependency_tracker.resources[resource] = list(
set(dependency_tracker.resources[resource])
| set(ids))
elif oper == 'DELETE':
obj = obj_class.get_by_uuid(obj_id)
if obj is None:
return
dependency_tracker = DependencyTracker(
DBBaseST.get_obj_type_map(), self._REACTION_MAP)
dependency_tracker.evaluate(obj_type, obj)
obj_class.delete(obj.name)
else:
# unknown operation
self.config_log('Unknown operation %s' % oper,
level=SandeshLevel.SYS_ERR)
return
if obj is None:
self.config_log('Error while accessing %s uuid %s' %
(obj_type, obj_id))
return
notify_trace.fq_name = obj.name
if not dependency_tracker:
return
notify_trace.dependency_tracker_resources = []
for res_type, res_id_list in dependency_tracker.resources.items():
if not res_id_list:
continue
dtr = DependencyTrackerResource(obj_type=res_type,
obj_keys=res_id_list)
notify_trace.dependency_tracker_resources.append(dtr)
cls = DBBaseST.get_obj_type_map().get(res_type)
if cls is None:
continue
for res_id in res_id_list:
res_obj = cls.get(res_id)
if res_obj is not None:
res_obj.evaluate()
for vn_id in dependency_tracker.resources.get(
'virtual_network', []):
vn = VirtualNetworkST.get(vn_id)
if vn is not None:
vn.uve_send()
# end for vn_id
except Exception as e:
string_buf = cStringIO.StringIO()
cgitb_hook(file=string_buf, format="text")
notify_trace.error = string_buf.getvalue()
try:
with open(self._args.trace_file, 'a') as err_file:
err_file.write(string_buf.getvalue())
except IOError:
self.config_log(string_buf.getvalue(),
level=SandeshLevel.SYS_ERR)
finally:
try:
notify_trace.trace_msg(name='MessageBusNotifyTraceBuf',
sandesh=self._sandesh)
except Exception:
pass
def add_msgbus_dtr(self, res_type, res_id_list):
dtr = DependencyTrackerResource(obj_type=res_type,
obj_keys=res_id_list)
self.msg_tracer.dependency_tracker_resources.append(dtr)