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OpenStack Study: versions.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2010-2011 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. import os
**** CubicPower OpenStack Study **** def get_view_builder(req): base_url = req.application_url return ViewBuilder(base_url)
**** CubicPower OpenStack Study **** class ViewBuilder(object):
**** CubicPower OpenStack Study **** def __init__(self, base_url): """Object initialization. :param base_url: url of the root wsgi application """ self.base_url = base_url
**** CubicPower OpenStack Study **** def build(self, version_data): """Generic method used to generate a version entity.""" version = { "id": version_data["id"], "status": version_data["status"], "links": self._build_links(version_data), } return version
**** CubicPower OpenStack Study **** def _build_links(self, version_data): """Generate a container of links that refer to the provided version.""" href = self.generate_href(version_data["id"]) links = [ { "rel": "self", "href": href, }, ] return links
**** CubicPower OpenStack Study **** def generate_href(self, version_number): """Create an url that refers to a specific version_number.""" return os.path.join(self.base_url, version_number)
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