Use standard FnGetAtt method for Swift container

Change-Id: I07b260d11f1c41f6e406f99df77cfad1c65a8a4b

heat/engine/resources/swift.py

@@ -14,7 +14,6 @@
 from six.moves.urllib import parse as urlparse
 from swiftclient import exceptions as swift_exceptions
 
-from heat.common import exception
 from heat.engine import attributes
 from heat.engine import properties
 from heat.engine import resource
@@ -152,7 +151,7 @@ class SwiftContainer(resource.Resource):
     def FnGetRefId(self):
         return unicode(self.resource_id)
 
-    def FnGetAtt(self, key):
+    def _resolve_attribute(self, key):
         parsed = list(urlparse.urlparse(self.swift().url))
         if key == self.DOMAIN_NAME:
             return parsed[1].split(':')[0]
@@ -175,9 +174,6 @@ class SwiftContainer(resource.Resource):
                     return headers['x-container-bytes-used']
                 elif key == self.HEAD_CONTAINER:
                     return headers
-        else:
-            raise exception.InvalidTemplateAttribute(resource=self.name,
-                                                     key=key)
 
 
 def resource_mapping():

heat/tests/test_swift.py

@@ -15,6 +15,7 @@
 import mox
 import swiftclient.client as sc
 
+from heat.common import exception
 from heat.common import template_format
 from heat.engine.resources import swift
 from heat.engine import scheduler
@@ -148,7 +149,7 @@ class swiftTest(HeatTestCase):
         self.assertEqual('17680980', rsrc.FnGetAtt('BytesUsed'))
         self.assertEqual(headers, rsrc.FnGetAtt('HeadContainer'))
 
-        self.assertRaises(swift.exception.InvalidTemplateAttribute,
+        self.assertRaises(exception.InvalidTemplateAttribute,
                           rsrc.FnGetAtt, 'Foo')
 
         scheduler.TaskRunner(rsrc.delete)()