56e359bf8a
This commit applies the Black format to the `dcorch/api` files to ensure that it adheres to the Black code style guidelines. Test Plan: PASS: Success in stx-distcloud-tox-black Story: 2011149 Task: 50445 Change-Id: I9e5bd8ca9dd33a7cdd2ce36e8dcbd4be65c436d7 Signed-off-by: Hugo Brito <hugo.brito@windriver.com>
85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
# Copyright (c) 2017-2021, 2024 Wind River Systems, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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from oslo_log import log as logging
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from oslo_service.wsgi import Request
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import webob.dec
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import webob.exc
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LOG = logging.getLogger(__name__)
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class Application(object):
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@classmethod
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def factory(cls, global_config, **local_config):
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"""Used for paste app factories in paste.deploy config files."""
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return cls(**local_config)
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def __call__(self, environ, start_response):
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raise NotImplementedError("You must implement __call__")
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class Middleware(Application):
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"""Base WSGI middleware wrapper.
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These classes require an application to be
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initialized that will be called next. By default the middleware will
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simply call its wrapped app, or you can override __call__ to customize its
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behavior.
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"""
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@classmethod
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def factory(cls, global_config, **local_config):
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"""Used for paste app factories in paste.deploy config files.
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Any local configuration (that is, values under the [filter:APPNAME]
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section of the paste config) will be passed into the `__init__` method
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as kwargs.
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"""
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def _factory(app):
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# https://bugs.launchpad.net/starlingx/+bug/1865085
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# pylint: disable-next=too-many-function-args
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return cls(app, global_config, **local_config)
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return _factory
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def __init__(self, application):
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self.application = application
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def process_request(self, req):
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"""Called on each request.
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If this returns None, the next application down the stack will be
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executed. If it returns a response then that response will be returned
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and execution will stop here.
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"""
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return None
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def process_response(self, response):
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"""Do whatever you'd like to the response."""
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return response
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@webob.dec.wsgify(RequestClass=Request)
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def __call__(self, req):
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response = self.process_request(req) # pylint: disable=E1128
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if response:
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return response
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# call the next app on the stack to process the request
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response = req.get_response(self.application)
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return self.process_response(response)
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