API for Metadata Definitions

Adding REST API calls for use in the new angularized
panels for Metadata definitions.

Set DISABLED = False in
openstack_dashboard/enabled/_2131_admin_metadata_defs_panel.py

Change-Id: I08c9c05a7b0870160ede7eb7645fc9daa83e2dd5
Partially-Implements: blueprint ng-metadata-defs-panel

openstack_dashboard/api/glance.py

@@ -346,7 +346,12 @@ def metadefs_namespace_delete(request, namespace_name):
 
 
 def metadefs_resource_types_list(request):
-    return glanceclient(request, '2').metadefs_resource_type.list()
+    # Listing Resource Types requires the v2 API. If not supported we return
+    # an empty array so callers don't need to worry about version checking.
+    if get_version() < 2:
+        return []
+    else:
+        return glanceclient(request, '2').metadefs_resource_type.list()
 
 
 def metadefs_namespace_resource_types(request, namespace_name):

openstack_dashboard/api/rest/glance.py

@@ -253,6 +253,33 @@ class MetadefsNamespaces(generic.View):
             request, filters=filters, **kwargs
         )))
 
+
+@urls.register
+class MetadefsResourceTypesList(generic.View):
+    """API for getting Metadata Definitions Resource Types List.
+
+       http://docs.openstack.org/developer/glance/metadefs-concepts.html
+    """
+    url_regex = r'glance/metadefs/resourcetypes/$'
+
+    @rest_utils.ajax()
+    def get(self, request):
+        """Get Metadata definitions resource types list.
+
+        The listing result is an object with property "items". Each item is
+        a resource type.
+
+        Example GET:
+        http://localhost/api/glance/resourcetypes/
+
+        Any request parameters will be passed through the API as filters.
+        """
+        return {
+            'items': [resource_type for resource_type in
+                      api.glance.metadefs_resource_types_list(request)]
+        }
+
+
 def create_image_metadata(data):
     try:
         """Use the given dict of image form data to generate the metadata used for
@@ -309,4 +336,3 @@ def handle_visibility(visibility, meta):
         meta['is_public'] = mapping_to_v1[visibility]
     except KeyError as e:
         raise rest_utils.AjaxError(400, "invalid visibility option: %s" % e.args[0])
-

openstack_dashboard/static/app/core/openstack-service-api/glance.service.js

@@ -40,7 +40,8 @@
       getImageProps: getImageProps,
       editImageProps: editImageProps,
       getImages: getImages,
-      getNamespaces: getNamespaces
+      getNamespaces: getNamespaces,
+      getResourceTypes: getResourceTypes
     };
 
     return service;
@@ -343,5 +344,30 @@
         });
     }
 
+    /**
+     * @name horizon.app.core.openstack-service-api.glance.getResourceTypes
+     * @description
+     * Get a list of metadata definition resource types.
+     *
+     * http://docs.openstack.org/developer/glance/metadefs-concepts.html
+     *
+     * The listing result is an object with property "items".
+     * Each item is a resource type. Resource types are Strings that
+     * correlate to Heat and Searchlight resource types.
+     * For example: OS::Glance::Image and OS::Nova::Instance.
+     *
+     */
+    function getResourceTypes() {
+      var config = {
+        cache: true
+      };
+
+      return apiService
+        .get('/api/glance/metadefs/resourcetypes/', config)
+        .error(function() {
+          toastService.add('error', gettext('Unable to retrieve the resource types.'));
+        });
+    }
+
   }
 }());

openstack_dashboard/static/app/core/openstack-service-api/glance.service.spec.js

@@ -154,6 +154,15 @@
           "cache": true
         },
         "error": "Unable to retrieve the namespaces."
+      },
+      {
+        "func": "getResourceTypes",
+        "method": "get",
+        "path": "/api/glance/metadefs/resourcetypes/",
+        "data": {
+          "cache": true
+        },
+        "error": "Unable to retrieve the resource types."
       }
     ];
 

openstack_dashboard/test/api_tests/glance_rest_tests.py

@@ -341,3 +341,28 @@ class ImagesRestTestCase(test.TestCase):
         gc.metadefs_namespace_full_list.assert_called_once_with(
             request, filters=filters, **kwargs
         )
+
+    @mock.patch.object(glance.api, 'glance')
+    def test_resource_types_get_list(self, gc):
+        request = self.mock_rest_request(**{'GET': {}})
+        gc.metadefs_resource_types_list.return_value = ([
+            {"created_at": "2015-08-21T16:49:43Z",
+             "name": "OS::Glance::Image",
+             "updated_at": "2015-08-21T16:49:43Z"},
+            {"created_at": "2015-08-21T16:49:43Z",
+             "name": "OS::Cinder::Volume",
+             "updated_at": "2015-08-21T16:49:43Z"}
+        ])
+
+        response = glance.MetadefsResourceTypesList().get(request)
+        self.assertStatusCode(response, 200)
+        self.assertEqual(response.json, {"items": [
+            {"created_at": "2015-08-21T16:49:43Z",
+             "name": "OS::Glance::Image",
+             "updated_at": "2015-08-21T16:49:43Z"},
+            {"created_at": "2015-08-21T16:49:43Z",
+             "name": "OS::Cinder::Volume",
+             "updated_at": "2015-08-21T16:49:43Z"}
+        ]})
+
+        gc.metadefs_resource_types_list.assert_called_once_with(request)

openstack_dashboard/test/api_tests/glance_tests.py

@@ -280,3 +280,12 @@ class GlanceApiTests(test.APITestCase):
         self.assertItemsEqual(defs, [])
         self.assertFalse(more)
         self.assertFalse(prev)
+
+    def test_metadefs_resource_types_list_v1(self):
+        api.glance.get_version = self.mox.CreateMockAnything()
+        api.glance.get_version().AndReturn(1)
+
+        self.mox.ReplayAll()
+
+        res_types = api.glance.metadefs_resource_types_list(self.request)
+        self.assertItemsEqual(res_types, [])