# octavia.distributor.drivers.noop_driver.driver

# Source code for octavia.distributor.drivers.noop_driver.driver

    # Copyright 2016 IBM Corp.
    # Copyright 2017 Rackspace, US Inc.
    #
    #    Licensed under the Apache License, Version 2.0 (the "License"); you may
    #    not use this file except in compliance with the License. You may obtain
    #    a copy of the License at
    #
    #         http://www.apache.org/licenses/LICENSE-2.0
    #
    #    Unless required by applicable law or agreed to in writing, software
    #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    #    License for the specific language governing permissions and limitations
    #    under the License.

    from taskflow.patterns import linear_flow
    from taskflow import task

    from oslo_log import log as logging
    from oslo_utils import uuidutils

    from octavia.distributor.drivers import driver_base

    LOG = logging.getLogger(__name__)

    class NoopProvidesRequiresTask(task.Task):
        def __init__(self, name, provides_dicts=None, requires=None):
            if provides_dicts is None:
                provides_dicts = {}
            super().__init__(
                name=name,
                provides=list(provides_dicts),
                requires=requires)
            self.provides_dict = provides_dicts

        def execute(self, *args, **kwargs):
            return self.provides_dict.values()

    class NoopManager:
        def __init__(self):
            super().__init__()

        def get_create_distributor_subflow(self):
            LOG.debug('Distributor %s create_distributor', self.__class__.__name__)
            create_distributor_flow = linear_flow.Flow('create-distributor')
            create_distributor_flow.add(NoopProvidesRequiresTask(
                'create-distributor-task',
                requires=('load_balancer'),
                provides_dicts={'distributor_id': uuidutils.generate_uuid()}))
            return create_distributor_flow

        def get_delete_distributor_subflow(self):
            LOG.debug('Distributor %s delete_distributor', self.__class__.__name__)
            delete_distributor_flow = linear_flow.Flow('delete-distributor')
            delete_distributor_flow.add(NoopProvidesRequiresTask(
                'delete-distributor-task', requires='distributor_id'))
            return delete_distributor_flow

        def get_add_vip_subflow(self):
            LOG.debug('Distributor %s add_vip', self.__class__.__name__)
            add_vip_flow = linear_flow.Flow('add-vip')
            add_vip_flow.add(NoopProvidesRequiresTask(
                'add-vip-task', requires=('distributor_id', 'vip',
                                          'vip_alg', 'vip_persistence')))
            return add_vip_flow

        def get_remove_vip_subflow(self):
            LOG.debug('Distributor %s remove_vip', self.__class__.__name__)
            remove_vip_flow = linear_flow.Flow('remove-vip')
            remove_vip_flow.add(NoopProvidesRequiresTask('remove-vip-task',
                                requires=('distributor_id', 'vip')))
            return remove_vip_flow

        def get_register_amphorae_subflow(self):
            LOG.debug('Distributor %s register_amphorae', self.__class__.__name__)
            register_amphorae_flow = linear_flow.Flow('register_amphorae')
            register_amphorae_flow.add(NoopProvidesRequiresTask(
                'register_amphorae_task', requires=('distributor_id', 'amphorae')))
            return register_amphorae_flow

        def get_drain_amphorae_subflow(self):
            LOG.debug('Distributor %s drain_amphorae', self.__class__.__name__)
            drain_amphorae_flow = linear_flow.Flow('drain-amphorae')
            drain_amphorae_flow.add(NoopProvidesRequiresTask(
                'drain_amphorae_task', requires=('distributor_id', 'amphorae')))
            return drain_amphorae_flow

        def get_unregister_amphorae_subflow(self):
            LOG.debug('Distributor %s unregister_amphorae',
                      self.__class__.__name__)
            unregister_amphorae_flow = linear_flow.Flow('unregister_amphora')
            unregister_amphorae_flow.add(NoopProvidesRequiresTask(
                'unregister_amphorae_task', requires=('distributor_id',
                                                      'amphorae')))
            return unregister_amphorae_flow

    class NoopDistributorDriver(driver_base.DistributorDriver):
        def __init__(self):
            super().__init__()
            self.driver = NoopManager()

        def get_create_distributor_subflow(self):
            return self.driver.get_create_distributor_subflow()

        def get_delete_distributor_subflow(self):
            return self.driver.get_delete_distributor_subflow()

        def get_add_vip_subflow(self):
            return self.driver.get_add_vip_subflow()

        def get_remove_vip_subflow(self):
            return self.driver.get_remove_vip_subflow()

        def get_register_amphorae_subflow(self):
            return self.driver.get_register_amphorae_subflow()

        def get_drain_amphorae_subflow(self):
            self.driver.get_drain_amphorae_subflow()

        def get_unregister_amphorae_subflow(self):
            self.driver.get_unregister_amphorae_subflow()

this page last updated: 2025-10-06 11:22:08

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