Separate namespaces_client from v2 images_client

Each resource should be separeted into specific service client.
So this patch separates namespaces_client from images_client.

Partially implements blueprint consistent-service-method-names

Change-Id: I6a3fa9cdd51247356f173063df8ac8e5bb65ef46
diff --git a/tempest/api/image/base.py b/tempest/api/image/base.py
index 31eb304..adc978f 100644
--- a/tempest/api/image/base.py
+++ b/tempest/api/image/base.py
@@ -123,6 +123,7 @@
     def setup_clients(cls):
         super(BaseV2ImageTest, cls).setup_clients()
         cls.client = cls.os.image_client_v2
+        cls.namespaces_client = cls.os.namespaces_client
 
 
 class BaseV2MemberImageTest(BaseV2ImageTest):
diff --git a/tempest/api/image/v2/test_images_metadefs_namespaces.py b/tempest/api/image/v2/test_images_metadefs_namespaces.py
index da0f4c1..f6d1bdc 100644
--- a/tempest/api/image/v2/test_images_metadefs_namespaces.py
+++ b/tempest/api/image/v2/test_images_metadefs_namespaces.py
@@ -31,38 +31,42 @@
         name = [{'name': resource_name}]
         namespace_name = data_utils.rand_name('namespace')
         # create the metadef namespace
-        body = self.client.create_namespace(namespace=namespace_name,
-                                            visibility='public',
-                                            description='Tempest',
-                                            display_name=namespace_name,
-                                            resource_type_associations=name,
-                                            protected=True)
+        body = self.namespaces_client.create_namespace(
+            namespace=namespace_name,
+            visibility='public',
+            description='Tempest',
+            display_name=namespace_name,
+            resource_type_associations=name,
+            protected=True)
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self._cleanup_namespace, namespace_name)
         # get namespace details
-        body = self.client.show_namespace(namespace_name)
+        body = self.namespaces_client.show_namespace(namespace_name)
         self.assertEqual(namespace_name, body['namespace'])
         self.assertEqual('public', body['visibility'])
         # unable to delete protected namespace
-        self.assertRaises(lib_exc.Forbidden, self.client.delete_namespace,
+        self.assertRaises(lib_exc.Forbidden,
+                          self.namespaces_client.delete_namespace,
                           namespace_name)
         # update the visibility to private and protected to False
-        body = self.client.update_namespace(namespace=namespace_name,
-                                            description='Tempest',
-                                            visibility='private',
-                                            display_name=namespace_name,
-                                            protected=False)
+        body = self.namespaces_client.update_namespace(
+            namespace=namespace_name,
+            description='Tempest',
+            visibility='private',
+            display_name=namespace_name,
+            protected=False)
         self.assertEqual('private', body['visibility'])
         self.assertEqual(False, body['protected'])
         # now able to delete the non-protected namespace
-        self.client.delete_namespace(namespace_name)
+        self.namespaces_client.delete_namespace(namespace_name)
 
     def _cleanup_namespace(self, namespace_name):
-        body = self.client.show_namespace(namespace_name)
+        body = self.namespaces_client.show_namespace(namespace_name)
         self.assertEqual(namespace_name, body['namespace'])
-        body = self.client.update_namespace(namespace=namespace_name,
-                                            description='Tempest',
-                                            visibility='private',
-                                            display_name=namespace_name,
-                                            protected=False)
-        self.client.delete_namespace(namespace_name)
+        body = self.namespaces_client.update_namespace(
+            namespace=namespace_name,
+            description='Tempest',
+            visibility='private',
+            display_name=namespace_name,
+            protected=False)
+        self.namespaces_client.delete_namespace(namespace_name)
diff --git a/tempest/clients.py b/tempest/clients.py
index 894704c..f98ca00 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -136,6 +136,7 @@
     ImagesClient as ImagesV2Client
 from tempest.services.image.v2.json.members_client import MembersClient \
     as MembersClientV2
+from tempest.services.image.v2.json.namespaces_client import NamespacesClient
 from tempest.services.object_storage.account_client import AccountClient
 from tempest.services.object_storage.container_client import ContainerClient
 from tempest.services.object_storage.object_client import ObjectClient
@@ -350,6 +351,14 @@
                 build_interval=CONF.image.build_interval,
                 build_timeout=CONF.image.build_timeout,
                 **self.default_params)
+            self.namespaces_client = NamespacesClient(
+                self.auth_provider,
+                CONF.image.catalog_type,
+                CONF.image.region or CONF.identity.region,
+                endpoint_type=CONF.image.endpoint_type,
+                build_interval=CONF.image.build_interval,
+                build_timeout=CONF.image.build_timeout,
+                **self.default_params)
         self.orchestration_client = OrchestrationClient(
             self.auth_provider,
             CONF.orchestration.catalog_type,
diff --git a/tempest/services/image/v2/json/images_client.py b/tempest/services/image/v2/json/images_client.py
index 1014417..dd38ee9 100644
--- a/tempest/services/image/v2/json/images_client.py
+++ b/tempest/services/image/v2/json/images_client.py
@@ -145,45 +145,3 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
-
-    def create_namespace(self, **kwargs):
-        """Create a namespace.
-
-        Available params: see http://developer.openstack.org/
-                              api-ref-image-v2.html#createNamespace-v2
-        """
-        data = json.dumps(kwargs)
-        resp, body = self.post('metadefs/namespaces', data)
-        self.expected_success(201, resp.status)
-        body = json.loads(body)
-        return rest_client.ResponseBody(resp, body)
-
-    def show_namespace(self, namespace):
-        url = 'metadefs/namespaces/%s' % namespace
-        resp, body = self.get(url)
-        self.expected_success(200, resp.status)
-        body = json.loads(body)
-        return rest_client.ResponseBody(resp, body)
-
-    def update_namespace(self, namespace, **kwargs):
-        """Update a namespace.
-
-        Available params: see http://developer.openstack.org/
-                              api-ref-image-v2.html#updateNamespace-v2
-        """
-        # NOTE: On Glance API, we need to pass namespace on both URI
-        # and a request body.
-        params = {'namespace': namespace}
-        params.update(kwargs)
-        data = json.dumps(params)
-        url = 'metadefs/namespaces/%s' % namespace
-        resp, body = self.put(url, body=data)
-        self.expected_success(200, resp.status)
-        body = json.loads(body)
-        return rest_client.ResponseBody(resp, body)
-
-    def delete_namespace(self, namespace):
-        url = 'metadefs/namespaces/%s' % namespace
-        resp, _ = self.delete(url)
-        self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp)
diff --git a/tempest/services/image/v2/json/namespaces_client.py b/tempest/services/image/v2/json/namespaces_client.py
new file mode 100644
index 0000000..97400e1
--- /dev/null
+++ b/tempest/services/image/v2/json/namespaces_client.py
@@ -0,0 +1,64 @@
+# Copyright 2013 IBM Corp.
+# 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 oslo_serialization import jsonutils as json
+
+from tempest.lib.common import rest_client
+
+
+class NamespacesClient(rest_client.RestClient):
+    api_version = "v2"
+
+    def create_namespace(self, **kwargs):
+        """Create a namespace.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-image-v2.html#createNamespace-v2
+        """
+        data = json.dumps(kwargs)
+        resp, body = self.post('metadefs/namespaces', data)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def show_namespace(self, namespace):
+        url = 'metadefs/namespaces/%s' % namespace
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_namespace(self, namespace, **kwargs):
+        """Update a namespace.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-image-v2.html#updateNamespace-v2
+        """
+        # NOTE: On Glance API, we need to pass namespace on both URI
+        # and a request body.
+        params = {'namespace': namespace}
+        params.update(kwargs)
+        data = json.dumps(params)
+        url = 'metadefs/namespaces/%s' % namespace
+        resp, body = self.put(url, body=data)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_namespace(self, namespace):
+        url = 'metadefs/namespaces/%s' % namespace
+        resp, _ = self.delete(url)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp)