/usr/share/pyshared/melange/versions.py is in python-melange 1:2012.1-3.
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# Copyright 2011 OpenStack LLC.
# 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.
import os
import routes
from xml.dom import minidom
from melange.common import wsgi
class VersionsController(wsgi.Controller):
def index(self, request):
"""Respond to a request for all OpenStack API versions."""
versions = [Version("v0.1", "DEPRECATED", request.application_url),
Version("v1.0", "CURRENT", request.application_url)]
return wsgi.Result(VersionsDataView(versions))
class Version(object):
def __init__(self, name, status, base_url):
self.name = name
self.status = status
self.base_url = base_url
def data(self):
return dict(name=self.name,
status=self.status,
links=[dict(rel="self",
href=self.url())])
def url(self):
return os.path.join(self.base_url, self.name)
def to_xml(self):
doc = minidom.Document()
version_elem = doc.createElement("version")
version_elem.setAttribute("name", self.name)
version_elem.setAttribute("status", self.status)
links_elem = doc.createElement("links")
link_elem = doc.createElement("link")
link_elem.setAttribute("href", self.url())
link_elem.setAttribute("rel", "self")
links_elem.appendChild(link_elem)
version_elem.appendChild(links_elem)
return version_elem
class VersionsDataView(object):
def __init__(self, versions):
self.versions = versions
def data_for_json(self):
return {'versions': [version.data() for version in self.versions]}
def data_for_xml(self):
return {'versions': self.versions}
class VersionsAPI(wsgi.Router):
def __init__(self):
mapper = routes.Mapper()
mapper.connect("/", controller=VersionsController().create_resource(),
action="index")
super(VersionsAPI, self).__init__(mapper)
def app_factory(global_conf, **local_conf):
conf = global_conf.copy()
conf.update(local_conf)
return VersionsAPI()
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