1482687ff7
Now we have situation when openstack projects like Mistral needs
extra oslo.messaging functionality.
But it is too complicated now to to implement something new and
integrate it with current code because there is a little bit mess.
1) Executor should be responsible for how to run jobs
(but now also has code with server logic)
2) Dispatcher should be responsible for routing message to the
target endpoint for processing (but it also has serialisation, sending replies,
executing some executor's callbacks etc)
3) Server should do all server specific logic, we need to have different
implementation of servers for RPC and notification, not different implementations
of dispatchers
This patch fixes 1-st point
Change-Id: Ib6408f408889bb7b7056722be636a5547b1a780d
96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
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# Copyright 2014 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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__all__ = [
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'list_opts'
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]
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import copy
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import itertools
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from oslo_messaging._drivers import amqp
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from oslo_messaging._drivers import base as drivers_base
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from oslo_messaging._drivers import impl_pika
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from oslo_messaging._drivers import impl_rabbit
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from oslo_messaging._drivers import impl_zmq
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from oslo_messaging._drivers.protocols.amqp import opts as amqp_opts
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from oslo_messaging._drivers.zmq_driver.matchmaker import matchmaker_redis
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from oslo_messaging.notify import notifier
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from oslo_messaging.rpc import client
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from oslo_messaging import server
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from oslo_messaging import transport
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_global_opt_lists = [
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drivers_base.base_opts,
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impl_zmq.zmq_opts,
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server._pool_opts,
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client._client_opts,
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transport._transport_opts,
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]
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_opts = [
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(None, list(itertools.chain(*_global_opt_lists))),
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('matchmaker_redis', matchmaker_redis.matchmaker_redis_opts),
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('oslo_messaging_amqp', amqp_opts.amqp1_opts),
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('oslo_messaging_notifications', notifier._notifier_opts),
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('oslo_messaging_rabbit', list(
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itertools.chain(amqp.amqp_opts, impl_rabbit.rabbit_opts,
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impl_pika.pika_opts, impl_pika.pika_pool_opts,
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impl_pika.notification_opts, impl_pika.rpc_opts))),
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]
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def list_opts():
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"""Return a list of oslo.config options available in the library.
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The returned list includes all oslo.config options which may be registered
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at runtime by the library.
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Each element of the list is a tuple. The first element is the name of the
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group under which the list of elements in the second element will be
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registered. A group name of None corresponds to the [DEFAULT] group in
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config files.
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This function is also discoverable via the 'oslo_messaging' entry point
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under the 'oslo.config.opts' namespace.
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The purpose of this is to allow tools like the Oslo sample config file
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generator to discover the options exposed to users by this library.
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:returns: a list of (group_name, opts) tuples
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"""
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return [(g, copy.deepcopy(o)) for g, o in _opts]
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def set_defaults(conf, executor_thread_pool_size=None):
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"""Set defaults for configuration variables.
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Overrides default options values.
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:param conf: Config instance specified to set default options in it. Using
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of instances instead of a global config object prevents conflicts between
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options declaration.
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:type conf: oslo.config.cfg.ConfigOpts instance.
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:keyword executor_thread_pool_size: Size of executor thread pool.
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:type executor_thread_pool_size: int
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:default executor_thread_pool_size: None
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"""
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if executor_thread_pool_size is not None:
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conf.set_default('executor_thread_pool_size',
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executor_thread_pool_size)
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