Keystone::Endpoint observe reality implementation

Add override parse_live_resource_data method implementation for
OS::Keystone::Endpoint resource.

Also, add translation rule Resolve for correct handling
service property.

implements bp get-reality-for-resources

Change-Id: I9fba6356d57243d24593c27d81050f0821f96df7

heat/engine/resources/openstack/keystone/endpoint.py

@@ -92,7 +92,14 @@ class KeystoneEndpoint(resource.Resource):
                 [self.SERVICE],
                 client_plugin=self.client_plugin(),
                 finder='get_service_id'
-            )
+            ),
+            translation.TranslationRule(
+                props,
+                translation.TranslationRule.RESOLVE,
+                [self.REGION],
+                client_plugin=self.client_plugin(),
+                finder='get_region_id'
+            ),
         ]
 
     def client(self):
@@ -138,6 +145,16 @@ class KeystoneEndpoint(resource.Resource):
                 name=name,
                 enabled=enabled)
 
+    def parse_live_resource_data(self, resource_properties, resource_data):
+        endpoint_reality = {}
+
+        endpoint_reality.update(
+            {self.SERVICE: resource_data.get('service_id'),
+             self.REGION: resource_data.get('region_id')})
+        for key in (set(self.PROPERTIES) - {self.SERVICE, self.REGION}):
+            endpoint_reality.update({key: resource_data.get(key)})
+        return endpoint_reality
+
 
 def resource_mapping():
     return {

heat/tests/openstack/keystone/test_endpoint.py

@@ -375,3 +375,30 @@ class KeystoneEndpointTest(common.HeatTestCase):
         self.endpoints.get.return_value = mock_endpoint
         attrs = rsrc._show_resource()
         self.assertEqual({'attr': 'val'}, attrs)
+
+    def test_get_live_state(self):
+        rsrc = self._setup_endpoint_resource('test_get_live_state')
+        mock_endpoint = mock.Mock()
+        mock_endpoint.to_dict.return_value = {
+            'region_id': 'RegionOne',
+            'links': {'self': 'some_link'},
+            'url': 'http://127.0.0.1:8004/v1/1234',
+            'region': 'RegionOne',
+            'enabled': True,
+            'interface': 'admin',
+            'service_id': '934f10ea63c24d82a8d9370cc0a1cb3b',
+            'id': '7f1944ae8c524e2799119b5f2dcf9781',
+            'name': 'fake'}
+        self.endpoints.get.return_value = mock_endpoint
+
+        reality = rsrc.get_live_state(rsrc.properties)
+        expected = {
+            'region': 'RegionOne',
+            'enabled': True,
+            'interface': 'admin',
+            'service': '934f10ea63c24d82a8d9370cc0a1cb3b',
+            'name': 'fake',
+            'url': 'http://127.0.0.1:8004/v1/1234'
+        }
+
+        self.assertEqual(expected, reality)