blob: 2369a8f9d1a2f0a043f7f8e71b1f6194210b9efd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 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.
from nova.api.openstack import common
def get_view_builder(req):
'''
A factory method that returns the correct builder based on the version of
the api requested.
'''
version = common.get_api_version(req)
base_url = req.application_url
if version == '1.1':
return ViewBuilder_1_1(base_url)
else:
return ViewBuilder_1_0()
class ViewBuilder(object):
def __init__(self):
pass
def build(self, image_obj):
raise NotImplementedError()
class ViewBuilder_1_1(ViewBuilder):
def __init__(self, base_url):
self.base_url = base_url
def generate_href(self, image_id):
return "%s/images/%s" % (self.base_url, image_id)
class ViewBuilder_1_0(ViewBuilder):
pass
|
