5698d9b3f8
Addressing Dan's comments. This changeset provides: - improved framework for API versioning, with separated controllers for each API version - Taken from nova:'Resource' class in WSGI framework. This class is a container for serializers, deserializers and controller - Better deserialization thanks to resource class. _parse_request_params has been removed - Improved management of HTTP client errors NOTE: this changeset does not update the framework used by API extensions. Change-Id: I88a669ce418225c415e0da22e951762d0708e0a5
116 lines
3.9 KiB
Python
116 lines
3.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2011 Nicira Networks, Inc
|
|
# 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 logging
|
|
from quantum.common import config
|
|
from quantum import wsgi
|
|
from quantum.common import exceptions as exception
|
|
|
|
|
|
LOG = logging.getLogger('quantum.service')
|
|
|
|
|
|
class WsgiService(object):
|
|
"""Base class for WSGI based services.
|
|
|
|
For each api you define, you must also define these flags:
|
|
:<api>_listen: The address on which to listen
|
|
:<api>_listen_port: The port on which to listen
|
|
|
|
"""
|
|
|
|
def __init__(self, app_name, conf_file, conf):
|
|
self.app_name = app_name
|
|
self.conf_file = conf_file
|
|
self.conf = conf
|
|
self.wsgi_app = None
|
|
|
|
def start(self):
|
|
self.wsgi_app = _run_wsgi(self.app_name, self.conf, self.conf_file)
|
|
|
|
def wait(self):
|
|
self.wsgi_app.wait()
|
|
|
|
|
|
class QuantumApiService(WsgiService):
|
|
"""Class for quantum-api service."""
|
|
|
|
@classmethod
|
|
def create(cls, conf=None, options=None, args=None):
|
|
app_name = "quantum"
|
|
if not conf:
|
|
conf_file, conf = config.load_paste_config(
|
|
app_name, options, args)
|
|
if not conf:
|
|
message = (_('No paste configuration found for: %s'),
|
|
app_name)
|
|
raise exception.Error(message)
|
|
|
|
# Setup logging early, supplying both the CLI options and the
|
|
# configuration mapping from the config file
|
|
# We only update the conf dict for the verbose and debug
|
|
# flags. Everything else must be set up in the conf file...
|
|
# Log the options used when starting if we're in debug mode...
|
|
|
|
config.setup_logging(options, conf)
|
|
debug = options.get('debug') or \
|
|
config.get_option(conf, 'debug',
|
|
type='bool', default=False)
|
|
verbose = options.get('verbose') or \
|
|
config.get_option(conf, 'verbose',
|
|
type='bool', default=False)
|
|
conf['debug'] = debug
|
|
conf['verbose'] = verbose
|
|
LOG.debug("*" * 80)
|
|
LOG.debug("Configuration options gathered from config file:")
|
|
LOG.debug(conf_file)
|
|
LOG.debug("================================================")
|
|
items = dict([(k, v) for k, v in conf.items()
|
|
if k not in ('__file__', 'here')])
|
|
for key, value in sorted(items.items()):
|
|
LOG.debug("%(key)-30s %(value)s" % locals())
|
|
LOG.debug("*" * 80)
|
|
service = cls(app_name, conf_file, conf)
|
|
return service
|
|
|
|
|
|
def serve_wsgi(cls, conf=None, options=None, args=None):
|
|
try:
|
|
service = cls.create(conf, options, args)
|
|
except Exception:
|
|
logging.exception('in WsgiService.create()')
|
|
raise
|
|
|
|
service.start()
|
|
|
|
return service
|
|
|
|
|
|
def _run_wsgi(app_name, paste_conf, paste_config_file):
|
|
LOG.info(_('Using paste.deploy config at: %s'), paste_config_file)
|
|
conf, app = config.load_paste_app(app_name,
|
|
{'config_file': paste_config_file},
|
|
None)
|
|
if not app:
|
|
LOG.error(_('No known API applications configured in %s.'),
|
|
paste_config_file)
|
|
return
|
|
server = wsgi.Server("Quantum")
|
|
server.start(app,
|
|
int(paste_conf['bind_port']), paste_conf['bind_host'])
|
|
return server
|