oslo.middleware/oslo_middleware/correlation_id.py
zhangguoqing 64b0b83174 Replaces uuid.uuid4 with uuidutils.generate_uuid()
Openstack common has a wrapper for generating uuids. We should
use that function when generating uuids for consistency.

Change-Id: I50cd018b490dea341e6bcfb3034a0244194b4d99
Closes-Bug: #1082248
2016-12-07 04:10:58 +00:00

28 lines
1.0 KiB
Python

# Copyright (c) 2013 Rackspace Hosting
# 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.
from oslo_utils import uuidutils
from oslo_middleware import base
class CorrelationId(base.ConfigurableMiddleware):
"Middleware that attaches a correlation id to WSGI request"
def process_request(self, req):
correlation_id = (req.headers.get("X_CORRELATION_ID") or
uuidutils.generate_uuid())
req.headers['X_CORRELATION_ID'] = correlation_id