6a7633c62a
Make all the source and tests HACKING compliant and enable tox -e hacking on by default. Relative directory checks not enabled (yet) Change-Id: I8803f67c49b4d16caebe76ae690092ae5c9a6dd3
147 lines
4.9 KiB
Python
147 lines
4.9 KiB
Python
#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 eNovance <licensing@enovance.com>
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#
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# Author: Julien Danjou <julien@danjou.info>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import absolute_import
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from oslo.config import cfg
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from stevedore import dispatch
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from swift.common.utils import split_path
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import webob
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REQUEST = webob
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try:
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# Swift >= 1.7.5
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import swift.common.swob
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REQUEST = swift.common.swob
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except ImportError:
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pass
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try:
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# Swift > 1.7.5 ... module exists but doesn't contain class.
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from swift.common.utils import InputProxy
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except ImportError:
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# Swift <= 1.7.5 ... module exists and has class.
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from swift.common.middleware.proxy_logging import InputProxy
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from ceilometer import counter
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from ceilometer.openstack.common import context
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from ceilometer.openstack.common import timeutils
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from ceilometer import pipeline
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from ceilometer import service
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class CeilometerMiddleware(object):
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"""
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Ceilometer middleware used for counting requests.
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"""
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def __init__(self, app, conf):
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self.app = app
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service.prepare_service()
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publisher_manager = dispatch.NameDispatchExtensionManager(
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namespace=pipeline.PUBLISHER_NAMESPACE,
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check_func=lambda x: True,
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invoke_on_load=True,
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)
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self.pipeline_manager = pipeline.setup_pipeline(publisher_manager)
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def __call__(self, env, start_response):
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start_response_args = [None]
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input_proxy = InputProxy(env['wsgi.input'])
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env['wsgi.input'] = input_proxy
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def my_start_response(status, headers, exc_info=None):
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start_response_args[0] = (status, list(headers), exc_info)
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def iter_response(iterable):
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if start_response_args[0]:
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start_response(*start_response_args[0])
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bytes_sent = 0
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try:
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for chunk in iterable:
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if chunk:
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bytes_sent += len(chunk)
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yield chunk
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finally:
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self.publish_counter(env,
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input_proxy.bytes_received,
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bytes_sent)
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try:
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iterable = self.app(env, my_start_response)
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except Exception:
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self.publish_counter(env, input_proxy.bytes_received, 0)
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raise
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else:
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return iter_response(iterable)
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def publish_counter(self, env, bytes_received, bytes_sent):
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req = REQUEST.Request(env)
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version, account, container, obj = split_path(req.path, 1, 4, True)
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now = timeutils.utcnow().isoformat()
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with pipeline.PublishContext(
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context.get_admin_context(),
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cfg.CONF.counter_source,
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self.pipeline_manager.pipelines,
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) as publisher:
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if bytes_received:
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publisher([counter.Counter(
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name='storage.objects.incoming.bytes',
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type='delta',
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unit='B',
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volume=bytes_received,
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user_id=env.get('HTTP_X_USER_ID'),
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project_id=env.get('HTTP_X_TENANT_ID'),
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resource_id=account.partition('AUTH_')[2],
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timestamp=now,
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resource_metadata={
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"path": req.path,
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"version": version,
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"container": container,
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"object": obj,
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})])
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if bytes_sent:
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publisher([counter.Counter(
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name='storage.objects.outgoing.bytes',
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type='delta',
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unit='B',
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volume=bytes_sent,
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user_id=env.get('HTTP_X_USER_ID'),
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project_id=env.get('HTTP_X_TENANT_ID'),
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resource_id=account.partition('AUTH_')[2],
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timestamp=now,
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resource_metadata={
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"path": req.path,
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"version": version,
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"container": container,
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"object": obj,
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})])
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def filter_factory(global_conf, **local_conf):
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conf = global_conf.copy()
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conf.update(local_conf)
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def ceilometer_filter(app):
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return CeilometerMiddleware(app, conf)
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return ceilometer_filter
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