kiloeyes/kiloeyes/microservice/server.py

63 lines
1.9 KiB
Python
Executable File

#
# Copyright 2013 IBM Corp
#
# 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 oslo_config import cfg
from oslo_log import log
from oslo_service import service as os_service
from stevedore import driver
from kiloeyes.common import namespace
from kiloeyes import service
OPTS = [
cfg.StrOpt('service',
help='kiloeyes micro services to process data.'),
cfg.IntOpt('threads', default=1,
help='The number of threads for the service.'),
]
cfg.CONF.register_opts(OPTS)
LOG = log.getLogger(__name__)
def main():
service.prepare_service()
if not cfg.CONF.service:
LOG.error('No micro service is configured, please specify service '
'in the configuration file.')
return None
launcher = os_service.ServiceLauncher(cfg.CONF)
# Now load the micro service
service_driver = driver.DriverManager(
namespace.MICROSERVICE_NS,
cfg.CONF.service,
invoke_on_load=True,
invoke_kwds={'threads': cfg.CONF.threads})
if not service_driver.driver:
LOG.error('Failed loading micro service under name space %s.%s' %
(namespace.MICROSERVICE_NS, cfg.CONF.service))
return None
LOG.debug("Micro service %s is now loaded." %
service_driver.driver.__class__.__name__)
# now launch the service
launcher.launch_service(service_driver.driver)
launcher.wait()