Tacker: ETSI MANO NFV Orchestrator / VNF Manager. See https://wiki.openstack.org/wiki/Tacker
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# 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
def get_view_builder(req):
base_url = req.application_url
return ViewBuilder(base_url)
class ViewBuilder(object):
def __init__(self, base_url):
"""Object initialization.
:param base_url: url of the root wsgi application
self.base_url = base_url
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
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
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)