zaqar/marconi/proxy/transport/wsgi/v1.py
Chang Bo Guo 683206d237 Follow hacking rules about import
This patch follows the rules about import in HACKING.rst
https://github.com/openstack/marconi/blob/master/HACKING.rst#imports

* reorder imports
* Add missing blank lines before code

Change-Id: I4abcfb3a2640499c5df34cbf75b5eaecb3d19823
2013-10-11 20:06:35 -07:00

55 lines
1.7 KiB
Python

# Copyright (c) 2013 Rackspace Hosting, 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.
"""v1: queries the first node in the first partition for a homedoc."""
import falcon
from marconi.openstack.common import log
from marconi.proxy.utils import helpers
from marconi.proxy.utils import http
LOG = log.getLogger(__name__)
class Resource(object):
"""Forwards homedoc requests to marconi queues API
:param partitions_controller: controller for handling partitions
"""
def __init__(self, partitions_controller):
self._partitions = partitions_controller
def on_get(self, request, response):
LOG.debug('GET v1')
partition = None
try:
partition = next(self._partitions.list())
except StopIteration:
LOG.error('GET v1 - no partitions registered')
raise falcon.HTTPServiceUnavailable(
"No partitions found",
"Register some partitions",
retry_after=120
)
host = partition['hosts'][0]
resp = helpers.forward(host, request)
response.set_headers(helpers.capitalized(resp.headers))
response.status = http.status(resp.status_code)
response.body = resp.content