# Copyright (c) 2012 OpenStack Foundation.
# All Rights Reserved.
#
#    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.

import eventlet
import sys

from oslo_config import cfg
from oslo_log import log

from neutron_checking._i18n import _, _LI
from neutron_checking.common import config
from neutron_checking import service

LOG = log.getLogger(__name__)


def main():
    config.init(sys.argv[1:])
    config.setup_logging()
    config.set_config_defaults()
    if not cfg.CONF.config_file:
        sys.exit(_("ERROR: Unable to find configuration file via the default"
                   " search paths (~/.neutron/, ~/, /etc/neutron/, /etc/) and"
                   " the '--config-file' option!"))
    try:
        eventlet_wsgi_server()
    except KeyboardInterrupt:
        pass
    except RuntimeError as e:
        sys.exit(_("ERROR: %s") % e)


def eventlet_wsgi_server():
    neutron_api = service.serve_wsgi(service.NeutronApiService)
    start_api_and_rpc_workers(neutron_api)


def start_api_and_rpc_workers(neutron_api):
    try:
        worker_launcher = service.start_all_workers()

        pool = eventlet.GreenPool()
        api_thread = pool.spawn(neutron_api.wait)
        plugin_workers_thread = pool.spawn(worker_launcher.wait)

        # api and other workers should die together. When one dies,
        # kill the other.
        api_thread.link(lambda gt: plugin_workers_thread.kill())
        plugin_workers_thread.link(lambda gt: api_thread.kill())

        pool.waitall()
    except NotImplementedError:
        LOG.info(_LI("RPC was already started in parent process by "
                     "plugin."))

        neutron_api.wait()

# Copyright (c) 2012 OpenStack Foundation.
# All Rights Reserved.
#
#    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.

import eventlet
import sys

from oslo_config import cfg
from oslo_log import log

from neutron_checking._i18n import _, _LI
from neutron_checking.common import config
from neutron_checking import service

LOG = log.getLogger(__name__)


def main():
    config.init(sys.argv[1:])
    config.setup_logging()
    config.set_config_defaults()
    if not cfg.CONF.config_file:
        sys.exit(_("ERROR: Unable to find configuration file via the default"
                   " search paths (~/.neutron/, ~/, /etc/neutron/, /etc/) and"
                   " the '--config-file' option!"))
    try:
        eventlet_wsgi_server()
    except KeyboardInterrupt:
        pass
    except RuntimeError as e:
        sys.exit(_("ERROR: %s") % e)


def eventlet_wsgi_server():
    neutron_api = service.serve_wsgi(service.NeutronApiService)
    start_api_and_rpc_workers(neutron_api)


def start_api_and_rpc_workers(neutron_api):
    try:
        worker_launcher = service.start_all_workers()

        pool = eventlet.GreenPool()
        api_thread = pool.spawn(neutron_api.wait)
        plugin_workers_thread = pool.spawn(worker_launcher.wait)

        # api and other workers should die together. When one dies,
        # kill the other.
        api_thread.link(lambda gt: plugin_workers_thread.kill())
        plugin_workers_thread.link(lambda gt: api_thread.kill())

        pool.waitall()
    except NotImplementedError:
        LOG.info(_LI("RPC was already started in parent process by "
                     "plugin."))

        neutron_api.wait()

# Copyright (c) 2012 OpenStack Foundation. # All Rights Reserved. # #    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. # api and other workers should die together. When one dies, # kill the other.