[placement] Separate API schemas (resource_class)

In compute APIs, they have their schemas in the
independent directory (nova/api/openstack/compute/schemas).
Placement APIs should be like that as well.

This patch separates API schemas to an independent directory
(nova/api/openstack/placement/schemas)
from nova/api/openstack/placement/handlers/resource_class.py.

Subsequent patches will move schemas of other handlers.

Change-Id: I61bfc96953d1158d3204d3f578a5255c18af2d6e

nova/api/openstack/placement/handlers/resource_class.py

@@ -11,14 +11,13 @@
 #    under the License.
 """Placement API handlers for resource classes."""
 
-import copy
-
 from oslo_serialization import jsonutils
 from oslo_utils import encodeutils
 from oslo_utils import timeutils
 import webob
 
 from nova.api.openstack.placement import microversion
+from nova.api.openstack.placement.schemas import resource_class as schema
 from nova.api.openstack.placement import util
 from nova.api.openstack.placement import wsgi_wrapper
 from nova import exception
@@ -26,23 +25,6 @@ from nova.i18n import _
 from nova.objects import resource_provider as rp_obj
 
 
-POST_RC_SCHEMA_V1_2 = {
-    "type": "object",
-    "properties": {
-        "name": {
-            "type": "string",
-            "pattern": "^CUSTOM\_[A-Z0-9_]+$",
-            "maxLength": 255,
-        },
-    },
-    "required": [
-        "name"
-    ],
-    "additionalProperties": False,
-}
-PUT_RC_SCHEMA_V1_2 = copy.deepcopy(POST_RC_SCHEMA_V1_2)
-
-
 def _serialize_links(environ, rc):
     url = util.resource_class_url(environ, rc)
     links = [{'rel': 'self', 'href': url}]
@@ -80,7 +62,7 @@ def create_resource_class(req):
     header pointing to the newly created resource class.
     """
     context = req.environ['placement.context']
-    data = util.extract_json(req.body, POST_RC_SCHEMA_V1_2)
+    data = util.extract_json(req.body, schema.POST_RC_SCHEMA_V1_2)
 
     try:
         rc = rp_obj.ResourceClass(context, name=data['name'])
@@ -191,7 +173,7 @@ def update_resource_class(req):
     name = util.wsgi_path_item(req.environ, 'name')
     context = req.environ['placement.context']
 
-    data = util.extract_json(req.body, PUT_RC_SCHEMA_V1_2)
+    data = util.extract_json(req.body, schema.PUT_RC_SCHEMA_V1_2)
 
     # The containing application will catch a not found here.
     rc = rp_obj.ResourceClass.get_by_name(context, name)
@@ -230,7 +212,7 @@ def update_resource_class(req):
     context = req.environ['placement.context']
 
     # Use JSON validation to validation resource class name.
-    util.extract_json('{"name": "%s"}' % name, PUT_RC_SCHEMA_V1_2)
+    util.extract_json('{"name": "%s"}' % name, schema.PUT_RC_SCHEMA_V1_2)
 
     status = 204
     try:

nova/api/openstack/placement/schemas/resource_class.py

@@ -0,0 +1,31 @@
+#    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.
+"""Placement API schemas for resource classes."""
+
+import copy
+
+
+POST_RC_SCHEMA_V1_2 = {
+    "type": "object",
+    "properties": {
+        "name": {
+            "type": "string",
+            "pattern": "^CUSTOM\_[A-Z0-9_]+$",
+            "maxLength": 255,
+        },
+    },
+    "required": [
+        "name"
+    ],
+    "additionalProperties": False,
+}
+PUT_RC_SCHEMA_V1_2 = copy.deepcopy(POST_RC_SCHEMA_V1_2)