Python dependency_tracker.DependencyTracker类代码示例

    def handle_update(self):
        obj_id = self.oper_info['uuid']
        self.obj = self.obj_class.get_by_uuid(obj_id)
        old_dt = None
        if self.obj is not None:
            old_dt = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
            old_dt.evaluate(self.obj_type, self.obj)
        else:
            self.logger.info('%s id %s not found' % (self.obj_type,
                                                     obj_id))
            return

        try:
            self.obj.update()
        except NoIdError:
            obj_id = self.oper_info['uuid']
            self.logger.warning('%s uuid %s update caused NoIdError' %
                                (self.obj_type, obj_id))
            return

        self.dependency_tracker = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
        self.dependency_tracker.evaluate(self.obj_type, self.obj)
        if old_dt:
            for resource, ids in old_dt.resources.items():
                if resource not in self.dependency_tracker.resources:
                    self.dependency_tracker.resources[resource] = ids
                else:
                    self.dependency_tracker.resources[resource] = list(
                        set(self.dependency_tracker.resources[resource]) |
                        set(ids))

 def test_basic_dep_track_2(self):
     reaction_map = {
         "red": {
             'self': [],
         },
         "blue": {
             'self': ['green'],
         },
         "green": {
             'self': [],
             'blue': [],
         },
         "purple": {
             'self': [],
         },
     }
     GreenSM._object_db.object_read = self.green_read_with_refs
     BlueSM._object_db.object_read = self.blue_read_with_multi_refs
     dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP, reaction_map)
     red = RedSM.locate("fake-red-uuid")
     blue = BlueSM.locate("fake-blue-uuid")
     GreenSM.locate("fake-green-uuid-0")
     GreenSM.locate("fake-green-uuid-1")
     dependency_tracker.evaluate('blue', blue)
     self.assertEqual(len(dependency_tracker.resources), 2)
     self.assertTrue("blue" in dependency_tracker.resources)
     self.assertTrue("green" in dependency_tracker.resources)
     self.assertEqual(dependency_tracker.resources["green"], ["fake-green-uuid-1", "fake-green-uuid-0"])
     self.assertEqual(dependency_tracker.resources["blue"], ["fake-blue-uuid"])
     RedSM.delete("fake-red-uuid")
     GreenSM.delete("fake-green-uuid-0")
     GreenSM.delete("fake-green-uuid-1")
     BlueSM.delete("fake-blue-uuid")

 def test_basic_dep_track(self):
     reaction_map = {
         "red": {
             'self': ['blue', 'green'],
         },
         "blue": {
             'self': [],
             'red': [],
         },
         "green": {
             'self': [],
             'red': [],
         },
         "purple": {
             'self': [],
         },
     }
     dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP, reaction_map)
     red = RedSM.locate("fake-red-uuid")
     blue = BlueSM.locate("fake-blue-uuid")
     green = GreenSM.locate("fake-green-uuid")
     dependency_tracker.evaluate('red', red)
     self.assertEqual(len(dependency_tracker.resources), 3)
     self.assertTrue("red" in dependency_tracker.resources)
     self.assertTrue("blue" in dependency_tracker.resources)
     self.assertTrue("green" in dependency_tracker.resources)
     self.assertEqual(dependency_tracker.resources["red"], ["fake-red-uuid"])
     self.assertEqual(dependency_tracker.resources["blue"], ["fake-blue-uuid"])
     self.assertEqual(dependency_tracker.resources["green"], ["fake-green-uuid"])
     RedSM.delete("fake-red-uuid")
     GreenSM.delete("fake-green-uuid")
     BlueSM.delete("fake-blue-uuid")

 def test_basic_dep_track_7(self):
     reaction_map = {
         "red": {
             'self': ['green', 'blue'],
         },
         "blue": {
             'self': ['green'],
             'red': [],
             'purple': ['green'],
         },
         "green": {
             'self': ['white'],
             'blue': ['white'],
             'red': [],
         },
         "white": {
             'self': ['purple'],
             'green': ['purple'],
         },
         "purple": {
             'self': ['blue'],
             'white': ['blue'],
         },
     }
     GreenSM._object_db.object_read = self.green_read_with_refs
     WhiteSM._object_db.object_read = self.white_read_with_refs
     BlueSM._object_db.object_read = self.purple_read_with_multi_refs
     BlueSM._object_db.object_read = self.blue_read_with_multi_refs
     dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP, reaction_map)
     red = RedSM.locate("fake-red-uuid")
     blue = BlueSM.locate("fake-blue-uuid")
     green = GreenSM.locate("fake-green-uuid-0")
     GreenSM.locate("fake-green-uuid-1")
     white = WhiteSM.locate("fake-white-uuid")
     purple = PurpleSM.locate("fake-purple-uuid")
     dependency_tracker.evaluate('purple', purple)
     self.assertEqual(len(dependency_tracker.resources), 4)
     self.assertTrue("blue" in dependency_tracker.resources)
     self.assertTrue("green" in dependency_tracker.resources)
     self.assertTrue("white" in dependency_tracker.resources)
     self.assertTrue("purple" in dependency_tracker.resources)
     self.assertEqual(set(dependency_tracker.resources["green"]), set(["fake-green-uuid-1", "fake-green-uuid-0"]))
     self.assertEqual(dependency_tracker.resources["blue"], ["fake-blue-uuid"])
     self.assertEqual(dependency_tracker.resources["white"], ["fake-white-uuid"])
     self.assertEqual(dependency_tracker.resources["purple"], ["fake-purple-uuid"])
     RedSM.delete("fake-red-uuid")
     GreenSM.delete("fake-green-uuid-0")
     GreenSM.delete("fake-green-uuid-1")
     BlueSM.delete("fake-blue-uuid")
     WhiteSM.delete("fake-white-uuid")
     PurpleSM.delete("fake-purple-uuid")

 def handle_delete(self):
     obj_id = self.oper_info['uuid']
     self.obj = self.obj_class.get_by_uuid(obj_id)
     self.db_cls._object_db.cache_uuid_to_fq_name_del(obj_id)
     if self.obj is None:
         return
     self.dependency_tracker = DependencyTracker(
         self.db_cls.get_obj_type_map(), self.reaction_map)
     self.dependency_tracker.evaluate(self.obj_type, self.obj)
     obj_key = self.db_cls.get_key_from_dict(self.oper_info['obj_dict'])
     self.obj_class.delete(obj_key)

    def _vnc_subscribe_callback(self, oper_info):
        import pdb;pdb.set_trace()
        self._db_resync_done.wait()
        try:
            msg = "Notification Message: %s" % (pformat(oper_info))
            self.config_log(msg, level=SandeshLevel.SYS_DEBUG)
            obj_type = oper_info['type'].replace('-', '_')
            obj_class = DBBase._OBJ_TYPE_MAP.get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE' or oper_info['oper'] == 'UPDATE':
                dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP, self._REACTION_MAP)
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is not None:
                    dependency_tracker.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP, self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.config_log('Unknown operation %s' % oper_info['oper'],
                                level=SandeshLevel.SYS_ERR)
                return

            if obj is None:
                self.config_log('Error while accessing %s uuid %s' % (
                                obj_type, obj_id))
                return


        except Exception:
            string_buf = cStringIO.StringIO()
            cgitb.Hook(file=string_buf, format="text").handle(sys.exc_info())
            self.config_log(string_buf.getvalue(), level=SandeshLevel.SYS_ERR)

        for lb_pool_id in dependency_tracker.resources.get('loadbalancer_pool', []):
            lb_pool = LoadbalancerPoolSM.get(lb_pool_id)
            if lb_pool is not None:
                lb_pool.add()

    def handle_update(self):
        obj_id = self.oper_info['uuid']
        self.obj = self.obj_class.get_by_uuid(obj_id)
        old_dt = None
        if self.obj is not None:
            old_dt = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
            old_dt.evaluate(self.obj_type, self.obj)
        else:
            self.logger.info('%s id %s not found' % (self.obj_type,
                                                     obj_id))
            return

        try:
            ret = self.obj.update()
            if ret is not None and not ret:
                # If update returns None, the function may not support a
                # return value, hence treat it as if something might have
                # changed. If a value is returned, use its truth value.
                # If it True, then some change was detected.
                # If no change, then terminate dependency tracker
                return
        except NoIdError:
            obj_id = self.oper_info['uuid']
            self.logger.warning('%s uuid %s update caused NoIdError' %
                                (self.obj_type, obj_id))
            return

        self.dependency_tracker = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
        self.dependency_tracker.evaluate(self.obj_type, self.obj)
        if old_dt:
            for resource, ids in old_dt.resources.items():
                if resource not in self.dependency_tracker.resources:
                    self.dependency_tracker.resources[resource] = ids
                else:
                    self.dependency_tracker.resources[resource] = list(
                        set(self.dependency_tracker.resources[resource]) |
                        set(ids))

 def handle_create(self):
     obj_key = self._get_key_from_oper_info()
     obj_id = self.oper_info['uuid']
     obj_fq_name = self.oper_info['fq_name']
     self.db_cls._object_db.cache_uuid_to_fq_name_add(
             obj_id, obj_fq_name, self.obj_type)
     self.obj = self.obj_class.locate(obj_key)
     if self.obj is None:
         self.logger.info('%s id %s fq_name %s not found' % (
             self.obj_type, obj_id, obj_fq_name))
         return
     self.dependency_tracker = DependencyTracker(
         self.db_cls.get_obj_type_map(), self.reaction_map)
     self.dependency_tracker.evaluate(self.obj_type, self.obj)

    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()
#.........这里部分代码省略.........

    def _vnc_subscribe_actions(self, oper_info):
        try:
            msg = "Notification Message: %s" % (pformat(oper_info))
            self.logger.log_debug(msg)
            obj_type = oper_info['type'].replace('-', '_')
            obj_class = DBBaseSM.get_obj_type_map().get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE' or oper_info['oper'] == 'UPDATE':
                dependency_tracker = DependencyTracker(
                    DBBaseSM.get_obj_type_map(), self._REACTION_MAP)
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is not None:
                    dependency_tracker.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(
                    DBBaseSM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.logger.log_error('Unknown operation %s' %
                                      oper_info['oper'])
                return

            if obj is None:
                self.logger.log_error('Error while accessing %s uuid %s' % (
                                      obj_type, obj_id))
                return

        except Exception:
            cgitb_error_log(self)

        for sas_id in dependency_tracker.resources.get(
                'service_appliance_set', []):
            sas_obj = ServiceApplianceSetSM.get(sas_id)
            if sas_obj is not None:
                sas_obj.add()

        for lb_pool_id in dependency_tracker.resources.get(
                'loadbalancer_pool', []):
            lb_pool = LoadbalancerPoolSM.get(lb_pool_id)
            if lb_pool is not None:
                lb_pool.add()

        for si_id in dependency_tracker.resources.get('service_instance', []):
            si = ServiceInstanceSM.get(si_id)
            if si:
                si.state = 'launch'
                self._create_service_instance(si)
            else:
                self.logger.log_info("Deleting SI %s" % si_id)
                for vm_id in dependency_tracker.resources.get(
                        'virtual_machine', []):
                    vm = VirtualMachineSM.get(vm_id)
                    self._delete_service_instance(vm)
                self.logger.log_info("SI %s deletion succeed" % si_id)

        for vn_id in dependency_tracker.resources.get('virtual_network', []):
            vn = VirtualNetworkSM.get(vn_id)
            if vn:
                for si_id in ServiceInstanceSM:
                    si = ServiceInstanceSM.get(si_id)
                    intf_list = []
                    if si.params:
                        intf_list = si.params.get('interface_list', [])
                    for intf in intf_list:
                        if (':').join(vn.fq_name) in intf.values():
                            self._create_service_instance(si)

        for vmi_id in dependency_tracker.resources.get(
                'virtual_machine_interface', []):
            vmi = VirtualMachineInterfaceSM.get(vmi_id)
            if vmi:
                for vm_id in dependency_tracker.resources.get(
                        'virtual_machine', []):
                    vm = VirtualMachineSM.get(vm_id)
                    self.port_delete_or_si_link(vm, vmi)
            else:
                for irt_id in dependency_tracker.resources.get(
                        'interface_route_table', []):
                    self._delete_interface_route_table(irt_id)

        for fip_id in dependency_tracker.resources.get('floating_ip', []):
            fip = FloatingIpSM.get(fip_id)
            if fip:
                for vmi_id in fip.virtual_machine_interfaces:
                    vmi = VirtualMachineInterfaceSM.get(vmi_id)
                    if vmi and vmi.virtual_ip:
                        self.netns_manager.add_fip_to_vip_vmi(vmi, fip)
#.........这里部分代码省略.........

    def _vnc_subscribe_actions(self, oper_info):
        msg = "Notification Message: %s" % (pformat(oper_info))
        self.logger.debug(msg)
        obj_type = oper_info["type"].replace("-", "_")
        obj_class = DBBaseSM.get_obj_type_map().get(obj_type)
        if obj_class is None:
            return

        if oper_info["oper"] == "CREATE":
            obj_dict = oper_info["obj_dict"]
            obj_id = oper_info["uuid"]
            obj = obj_class.locate(obj_id)
            if obj is not None:
                dependency_tracker = DependencyTracker(DBBaseSM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
        elif oper_info["oper"] == "UPDATE":
            obj_id = oper_info["uuid"]
            obj = obj_class.get(obj_id)
            old_dt = None
            if obj is not None:
                old_dt = DependencyTracker(DBBaseSM.get_obj_type_map(), self._REACTION_MAP)
                old_dt.evaluate(obj_type, obj)
            else:
                obj = obj_class.locate(obj_id)
            if obj is not None:
                try:
                    obj.update()
                except NoIdError:
                    self.logger.warning("%s uuid %s has vanished" % (obj_type, obj_id))
                    return
                dependency_tracker = DependencyTracker(DBBaseSM.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_info["oper"] == "DELETE":
            obj_id = oper_info["uuid"]
            obj = obj_class.get(obj_id)
            if obj is None:
                return
            dependency_tracker = DependencyTracker(DBBaseSM.get_obj_type_map(), self._REACTION_MAP)
            dependency_tracker.evaluate(obj_type, obj)
            obj_class.delete(obj_id)
        else:
            # unknown operation
            self.logger.error("Unknown operation %s" % oper_info["oper"])
            return

        if obj is None:
            self.logger.warning("%s uuid %s has vanished" % (obj_type, obj_id))
            return

        for res_type, res_id_list in dependency_tracker.resources.items():
            if not res_id_list:
                continue
            cls = DBBaseSM.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()

    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 = DBBaseDM.get_obj_type_map().get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE':
                obj_dict = oper_info['obj_dict']
                obj_id = obj_dict['uuid']
                obj = obj_class.locate(obj_id, obj_dict)
                dependency_tracker = DependencyTracker(
                    DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'UPDATE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                old_dt = None
                if obj is not None:
                    old_dt = DependencyTracker(
                        DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                    old_dt.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker = DependencyTracker(
                    DBBaseDM.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_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(
                    DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.config_log('Unknown operation %s' % oper_info['oper'],
                                level=SandeshLevel.SYS_ERR)
                return

            if obj is None:
                self.config_log('Error while accessing %s uuid %s' % (
                                obj_type, obj_id))
                return

        except Exception:
            string_buf = cStringIO.StringIO()
            cgitb.Hook(file=string_buf, format="text").handle(sys.exc_info())
            self.config_log(string_buf.getvalue(), level=SandeshLevel.SYS_ERR)

        if not dependency_tracker:
            return

        for vn_id in dependency_tracker.resources.get('virtual_network', []):
            vn = VirtualNetworkDM.get(vn_id)
            if vn is not None:
                vn.update_instance_ip_map()

        for pr_id in dependency_tracker.resources.get('physical_router', []):
            pr = PhysicalRouterDM.get(pr_id)
            if pr is not None:
                pr.set_config_state()

    def _vnc_subscribe_actions(self, oper_info):
        try:
            msg = "Notification Message: %s" % (pformat(oper_info))
            self.config_log(msg, level=SandeshLevel.SYS_DEBUG)
            obj_type = oper_info['type'].replace('-', '_')
            obj_class = DBBase._OBJ_TYPE_MAP.get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE' or oper_info['oper'] == 'UPDATE':
                dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP,
                    self._REACTION_MAP)
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is not None:
                    dependency_tracker.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(DBBase._OBJ_TYPE_MAP,
                    self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.config_log('Unknown operation %s' % oper_info['oper'],
                                level=SandeshLevel.SYS_ERR)
                return

            if obj is None:
                self.config_log('Error while accessing %s uuid %s' % (
                                obj_type, obj_id))
                return

        except Exception:
            cgitb_error_log(self)

        for sas_id in dependency_tracker.resources.get('service_appliance_set', []):
            sas_obj = ServiceApplianceSetSM.get(sas_id)
            if sas_obj is not None:
                sas_obj.add()

        for lb_pool_id in dependency_tracker.resources.get('loadbalancer_pool', []):
            lb_pool = LoadbalancerPoolSM.get(lb_pool_id)
            if lb_pool is not None:
                lb_pool.add()

        for si_id in dependency_tracker.resources.get('service_instance', []):
            si = ServiceInstanceSM.get(si_id)
            if si:
                self._create_service_instance(si)
            else:
                for vm_id in dependency_tracker.resources.get(
                        'virtual_machine', []):
                    vm = VirtualMachineSM.get(vm_id)
                    self._delete_service_instance(vm)

        for vn_id in dependency_tracker.resources.get('virtual_network', []):
            vn = VirtualNetworkSM.get(vn_id)
            if vn:
                for si_id in ServiceInstanceSM:
                    si = ServiceInstanceSM.get(si_id)
                    if (':').join(vn.fq_name) in si.params.values():
                        self._create_service_instance(si)

        for vmi_id in dependency_tracker.resources.get('virtual_machine_interface', []):
            vmi = VirtualMachineInterfaceSM.get(vmi_id)
            if vmi:
                for vm_id in dependency_tracker.resources.get(
                        'virtual_machine', []):
                    vm = VirtualMachineSM.get(vm_id)
                    if vm:
                        self.check_link_si_to_vm(vm, vmi)
            else:
                for irt_id in dependency_tracker.resources.get(
                        'interface_route_table', []):
                    self._delete_interface_route_table(irt_id)

        for fip_id in dependency_tracker.resources.get('floating_ip', []):
            fip = FloatingIpSM.get(fip_id)
            if fip:
                for vmi_id in fip.virtual_machine_interfaces:
                    vmi = VirtualMachineInterfaceSM.get(vmi_id)
                    if vmi and vmi.virtual_ip:
                        self.netns_manager.add_fip_to_vip_vmi(vmi, fip)

    def _vnc_subscribe_callback(self, oper_info):
        self._db_resync_done.wait()
        try:
            msg = "Notification Message: %s" % (pformat(oper_info))
            self.config_log(msg, level=SandeshLevel.SYS_DEBUG)
            obj_type = oper_info['type'].replace('-', '_')
            obj_class = DBBaseDM._OBJ_TYPE_MAP.get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE':
                obj_dict = oper_info['obj_dict']
                obj_id = obj_dict['uuid']
                obj = obj_class.locate(obj_id, obj_dict)
                dependency_tracker = DependencyTracker(DBBaseDM._OBJ_TYPE_MAP,
                                                       self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'UPDATE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                dependency_tracker = DependencyTracker(DBBaseDM._OBJ_TYPE_MAP,
                                                       self._REACTION_MAP)
                if obj is not None:
                    dependency_tracker.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(DBBaseDM._OBJ_TYPE_MAP,
                                                       self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.config_log('Unknown operation %s' % oper_info['oper'],
                                level=SandeshLevel.SYS_ERR)
                return

            if obj is None:
                self.config_log('Error while accessing %s uuid %s' % (
                                obj_type, obj_id))
                return

        except Exception:
            string_buf = cStringIO.StringIO()
            cgitb.Hook(file=string_buf, format="text").handle(sys.exc_info())
            self.config_log(string_buf.getvalue(), level=SandeshLevel.SYS_ERR)

        for pr_id in dependency_tracker.resources.get('physical_router', []):
            pr = PhysicalRouterDM.get(pr_id)
            if pr is not None:
                pr.push_config()

#.........这里部分代码省略.........
            return

        oper = self.oper_info['oper']
        obj_id = self.oper_info['uuid']
        self.create_msgbus_trace(self.oper_info.get('request_id'),
                                 oper, obj_id)
        if oper == 'CREATE':
            self.handle_create()
        elif oper == 'UPDATE':
            self.handle_update()
        elif oper == 'DELETE':
            self.handle_delete()
        else:
            self.handle_unknown()
            return
        if self.obj is None:
            self.logger.error('Error while accessing %s uuid %s' % (
                self.obj_type, obj_id))
            return
        self.evaluate_dependency()

    def handle_create(self):
        obj_dict = self.oper_info['obj_dict']
        obj_key = self.db_cls.get_key_from_dict(obj_dict)
        obj_id = self.oper_info['uuid']
        obj_fq_name = obj_dict['fq_name']
        self.db_cls._object_db.cache_uuid_to_fq_name_add(
                obj_id, obj_fq_name, self.obj_type)
        self.obj = self.obj_class.locate(obj_key)
        if self.obj is None:
            self.logger.info('%s id %s fq_name %s not found' % (
                self.obj_type, obj_id, obj_fq_name))
            return
        self.dependency_tracker = DependencyTracker(
            self.db_cls.get_obj_type_map(), self.reaction_map)
        self.dependency_tracker.evaluate(self.obj_type, self.obj)

    def handle_update(self):
        obj_id = self.oper_info['uuid']
        self.obj = self.obj_class.get_by_uuid(obj_id)
        old_dt = None
        if self.obj is not None:
            old_dt = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
            old_dt.evaluate(self.obj_type, self.obj)
        else:
            self.logger.info('%s id %s not found' % (self.obj_type,
                                                     obj_id))
            return

        try:
            self.obj.update()
        except NoIdError:
            obj_id = self.oper_info['uuid']
            self.logger.warning('%s uuid %s update caused NoIdError' %
                                (self.obj_type, obj_id))
            return

        self.dependency_tracker = DependencyTracker(
                self.db_cls.get_obj_type_map(), self.reaction_map)
        self.dependency_tracker.evaluate(self.obj_type, self.obj)
        if old_dt:
            for resource, ids in old_dt.resources.items():
                if resource not in self.dependency_tracker.resources:
                    self.dependency_tracker.resources[resource] = ids
                else: