Add versions and links models

*Added versions model for Images
*Added links model for Images

Change-Id: I25ccdf86c360848dfc4331cf0ebdf11058b1bec3

cloudcafe/images/common/models/__init__.py

@@ -0,0 +1,15 @@
+"""
+Copyright 2014 Rackspace
+
+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.
+"""

cloudcafe/images/common/models/links.py

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+"""
+Copyright 2014 Rackspace
+
+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 cafe.engine.models.base import (
+    AutoMarshallingModel, AutoMarshallingListModel)
+
+
+class Link(AutoMarshallingModel):
+    """@summary: Link model"""
+
+    def __init__(self, href=None, rel=None):
+        super(Link, self).__init__()
+        self.href = href
+        self.rel = rel
+
+    @classmethod
+    def _dict_to_obj(cls, json_dict):
+        link = Link(href=json_dict.get('href'), rel=json_dict.get('rel'))
+        return link
+
+    @classmethod
+    def _xml_to_obj(cls, serialized_str):
+        raise NotImplementedError(
+            'Glance does not serve XML-formatted resources')
+
+    def _obj_to_xml(self):
+        raise NotImplementedError(
+            'Glance does not serve XML-formatted resources')
+
+
+class Links(AutoMarshallingListModel):
+    """@summary: Links model"""
+
+    def __init__(self, links=None):
+        self.extend(links or [])
+
+    @classmethod
+    def _list_to_obj(cls, link_dict_list):
+        links = Links()
+        for link_dict in link_dict_list:
+            links.append(Link._dict_to_obj(link_dict))
+        return links

cloudcafe/images/v2/models/versions.py

@@ -0,0 +1,87 @@
+"""
+Copyright 2014 Rackspace
+
+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 json
+
+from cafe.engine.models.base import (
+    AutoMarshallingModel, AutoMarshallingListModel)
+from cloudcafe.compute.common.equality_tools import EqualityTools
+from cloudcafe.images.common.models.links import Links
+
+
+class Version(AutoMarshallingModel):
+    """@summary: Version model"""
+
+    def __init__(self, id_=None, links=None, status=None):
+        super(Version, self).__init__()
+        self.id_ = id_
+        self.links = links
+        self.status = status
+
+    def __eq__(self, other):
+        return EqualityTools.are_objects_equal(self, other)
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    @classmethod
+    def _json_to_obj(cls, serialized_str):
+        json_dict = json.loads(serialized_str)
+        return cls._dict_to_obj(json_dict)
+
+    @classmethod
+    def _dict_to_obj(cls, json_dict):
+        links = None
+        if 'links' in json_dict:
+            links = Links._list_to_obj(json_dict.get('links'))
+        version = Version(id_=json_dict.get('id'), links=links,
+                          status=json_dict.get('status'))
+        return version
+
+    def _obj_to_json(self):
+        obj_dict = {}
+        obj_dict['id'] = self.id_
+        obj_dict['links'] = self.links
+        obj_dict['status'] = self.status
+        return json.dumps(obj_dict)
+
+    @classmethod
+    def _xml_to_obj(cls, serialized_str):
+        raise NotImplementedError(
+            'Glance does not serve XML-formatted resources')
+
+    def _obj_to_xml(self):
+        raise NotImplementedError(
+            'Glance does not serve XML-formatted resources')
+
+
+class Versions(AutoMarshallingListModel):
+    """@summary: Versions model"""
+
+    def __init__(self, versions=None):
+        self.extend(versions or [])
+
+    @classmethod
+    def _json_to_obj(cls, serialized_str):
+        json_dict = json.loads(serialized_str)
+        return cls._list_to_obj(json_dict.get('versions'))
+
+    @classmethod
+    def _list_to_obj(cls, dict_list):
+        versions = Versions()
+        for version_dict in dict_list:
+            versions.append(Version._dict_to_obj(version_dict))
+        return versions