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author | Julien Danjou <julien@danjou.info> | 2014-07-09 15:26:02 +0200 |
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committer | Julien Danjou <julien@danjou.info> | 2014-08-20 17:38:32 +0200 |
commit | f480494da148142666896422e7e14958ff96df3a (patch) | |
tree | 1a42d176fee4f7951a712c20b6214722595a6cb2 | |
parent | 1ee33509e7a6cfa2c9d6ae4f80cf0c3abdd4599b (diff) | |
download | oslo-messaging-f480494da148142666896422e7e14958ff96df3a.tar.gz |
Import oslo-incubator/middleware/base
oslo-incubator commit 569979adfd4237869bb50c7aaa02bc3fd4f0b413
Change-Id: I515c144abe11124d08339330e44957f56416ec72
-rw-r--r-- | openstack-common.conf | 2 | ||||
-rw-r--r-- | oslo/messaging/openstack/common/middleware/__init__.py | 0 | ||||
-rw-r--r-- | oslo/messaging/openstack/common/middleware/base.py | 56 |
3 files changed, 58 insertions, 0 deletions
diff --git a/openstack-common.conf b/openstack-common.conf index 695e286..fd94e1c 100644 --- a/openstack-common.conf +++ b/openstack-common.conf @@ -7,6 +7,8 @@ module=importutils module=jsonutils module=network_utils module=timeutils +module=middleware/base +module=middleware/__init__ script = tools/run_cross_tests.sh diff --git a/oslo/messaging/openstack/common/middleware/__init__.py b/oslo/messaging/openstack/common/middleware/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/oslo/messaging/openstack/common/middleware/__init__.py diff --git a/oslo/messaging/openstack/common/middleware/base.py b/oslo/messaging/openstack/common/middleware/base.py new file mode 100644 index 0000000..464a1cc --- /dev/null +++ b/oslo/messaging/openstack/common/middleware/base.py @@ -0,0 +1,56 @@ +# Copyright 2011 OpenStack Foundation. +# 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. + +"""Base class(es) for WSGI Middleware.""" + +import webob.dec + + +class Middleware(object): + """Base WSGI middleware wrapper. + + These classes require an application to be initialized that will be called + next. By default the middleware will simply call its wrapped app, or you + can override __call__ to customize its behavior. + """ + + @classmethod + def factory(cls, global_conf, **local_conf): + """Factory method for paste.deploy.""" + return cls + + def __init__(self, application): + self.application = application + + def process_request(self, req): + """Called on each request. + + If this returns None, the next application down the stack will be + executed. If it returns a response then that response will be returned + and execution will stop here. + """ + return None + + def process_response(self, response): + """Do whatever you'd like to the response.""" + return response + + @webob.dec.wsgify + def __call__(self, req): + response = self.process_request(req) + if response: + return response + response = req.get_response(self.application) + return self.process_response(response) |