summaryrefslogtreecommitdiffstats
path: root/networking-odl/networking_odl/common/lightweight_testing.py
blob: 3d0cf2eae2eaf941e9d9ae4350e94fa77541013a (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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
# Copyright (c) 2015 Intel Inc.
# 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 copy import deepcopy
import requests
import six

from oslo_log import log as logging
from oslo_serialization import jsonutils

from networking_odl._i18n import _
from networking_odl.common import client
from networking_odl.common import constants as odl_const


LOG = logging.getLogger(__name__)

OK = requests.codes.ok
NO_CONTENT = requests.codes.no_content
NOT_ALLOWED = requests.codes.not_allowed
NOT_FOUND = requests.codes.not_found
BAD_REQUEST = requests.codes.bad_request


class OpenDaylightLwtClient(client.OpenDaylightRestClient):
    """Lightweight testing client"""

    lwt_dict = {odl_const.ODL_NETWORKS: {},
                odl_const.ODL_SUBNETS: {},
                odl_const.ODL_PORTS: {},
                odl_const.ODL_SGS: {},
                odl_const.ODL_SG_RULES: {},
                odl_const.ODL_LOADBALANCERS: {},
                odl_const.ODL_LISTENERS: {},
                odl_const.ODL_POOLS: {},
                odl_const.ODL_MEMBERS: {},
                odl_const.ODL_HEALTHMONITORS: {}}

    @classmethod
    def _make_response(cls, status_code=OK, content=None):
        """Only supports 'content-type': 'application/json'"""
        response = requests.models.Response()
        response.status_code = status_code
        if content:
            response.raw = six.BytesIO(
                jsonutils.dumps(content).encode('utf-8'))

        return response

    @classmethod
    def _get_resource_id(cls, urlpath):
        # resouce ID is the last element of urlpath
        return str(urlpath).rsplit('/', 1)[-1]

    @classmethod
    def post(cls, resource_type, resource_dict, urlpath, resource_list):
        """No ID in URL, elements in resource_list must have ID"""

        if resource_list is None:
            raise ValueError(_("resource_list can not be None"))

        for resource in resource_list:
            if resource['id'] in resource_dict:
                LOG.debug("%s %s already exists", resource_type,
                          resource['id'])
                response = cls._make_response(NOT_ALLOWED)
                raise requests.exceptions.HTTPError(response=response)

            resource_dict[resource['id']] = deepcopy(resource)

        return cls._make_response(NO_CONTENT)

    @classmethod
    def put(cls, resource_type, resource_dict, urlpath, resource_list):

        resource_id = cls._get_resource_id(urlpath)

        if resource_list is None:
            raise ValueError(_("resource_list can not be None"))

        if resource_id and len(resource_list) != 1:
            LOG.debug("Updating %s with multiple resources", urlpath)
            response = cls._make_response(BAD_REQUEST)
            raise requests.exceptions.HTTPError(response=response)

        for resource in resource_list:
            res_id = resource_id or resource['id']
            if res_id in resource_dict:
                resource_dict[res_id].update(deepcopy(resource))
            else:
                LOG.debug("%s %s does not exist", resource_type, res_id)
                response = cls._make_response(NOT_FOUND)
                raise requests.exceptions.HTTPError(response=response)

        return cls._make_response(NO_CONTENT)

    @classmethod
    def delete(cls, resource_type, resource_dict, urlpath, resource_list):

        if resource_list is None:
            resource_id = cls._get_resource_id(urlpath)
            id_list = [resource_id]
        else:
            id_list = [res['id'] for res in resource_list]

        for res_id in id_list:
            removed = resource_dict.pop(res_id, None)
            if removed is None:
                LOG.debug("%s %s does not exist", resource_type, res_id)
                response = cls._make_response(NOT_FOUND)
                raise requests.exceptions.HTTPError(response=response)

        return cls._make_response(NO_CONTENT)

    @classmethod
    def get(cls, resource_type, resource_dict, urlpath, resource_list=None):

        resource_id = cls._get_resource_id(urlpath)

        if resource_id:
            resource = resource_dict.get(resource_id)
            if resource is None:
                LOG.debug("%s %s does not exist", resource_type, resource_id)
                response = cls._make_response(NOT_FOUND)
                raise requests.exceptions.HTTPError(response=response)
            else:
                # When getting single resource, return value is a dict
                r_list = {resource_type[:-1]: deepcopy(resource)}
                return cls._make_response(OK, r_list)

        r_list = [{resource_type[:-1]: deepcopy(res)}
                  for res in six.itervalues(resource_dict)]

        return cls._make_response(OK, r_list)

    def sendjson(self, method, urlpath, obj=None):
        """Lightweight testing without ODL"""

        if '/' not in urlpath:
            urlpath += '/'

        resource_type = str(urlpath).split('/', 1)[0]
        resource_type = resource_type.replace('-', '_')

        resource_dict = self.lwt_dict.get(resource_type)

        if resource_dict is None:
            LOG.debug("Resource type %s is not supported", resource_type)
            response = self._make_response(NOT_FOUND)
            raise requests.exceptions.HTTPError(response=response)

        func = getattr(self, str(method).lower())

        resource_list = None
        if obj:
            """If obj is not None, it can only have one entry"""
            assert len(obj) == 1, "Obj can only have one entry"

            key, resource_list = list(obj.items())[0]

            if not isinstance(resource_list, list):
                # Need to transform resource_list to a real list, i.e. [res]
                resource_list = [resource_list]

        return func(resource_type, resource_dict, urlpath, resource_list)