Support non-public volume types

- added query-parameters to filter for non-public volume-types. Needs
  ?is_public=None

- added is_public-property to support non-public-volume-types

Change-Id: I3f6cdf3fc4c97584a28c9254b74985d8ecde4719

openstack/block_storage/v2/_proxy.py

@@ -98,12 +98,12 @@ class Proxy(proxy.Proxy):
         """
         return self._get(_type.Type, type)
 
-    def types(self):
+    def types(self, **query):
         """Retrieve a generator of volume types
 
         :returns: A generator of volume type objects.
         """
-        return self._list(_type.Type, paginated=False)
+        return self._list(_type.Type, paginated=False, **query)
 
     def create_type(self, **attrs):
         """Create a new type from attributes

openstack/block_storage/v2/type.py

@@ -24,6 +24,8 @@ class Type(resource.Resource):
     allow_delete = True
     allow_list = True
 
+    _query_mapping = resource.QueryParameters("is_public")
+
     # Properties
     #: A ID representing this type.
     id = resource.Body("id")
@@ -31,3 +33,5 @@ class Type(resource.Resource):
     name = resource.Body("name")
     #: A dict of extra specifications. "capabilities" is a usual key.
     extra_specs = resource.Body("extra_specs", type=dict)
+    #: a private volume-type. *Type: bool*
+    is_public = resource.Body('os-volume-type-access:is_public', type=bool)