break up monolithic module

1 files changed, 20 insertions, 0 deletions

diff --git a/stevedore/named.py b/stevedore/named.py
new file mode 100644
index 0000000..cfa5a2d
--- /dev/null
+++ b/stevedore/named.py
@@ -0,0 +1,20 @@
+from .enabled import EnabledExtensionManager
+
+
+class NamedExtensionManager(EnabledExtensionManager):
+    """ExtensionManager that only loads the named extensions.
+
+    This is useful for explictly enabling extensions in a
+    configuration file, for example.
+    """
+
+    def __init__(self, namespace, names=[],
+                 invoke_on_load=False, invoke_args=(), invoke_kwds={}):
+        def check(ep):
+            return ep.name in names
+        super(NamedExtensionManager, self).__init__(namespace,
+                                                    check,
+                                                    invoke_on_load=invoke_on_load,
+                                                    invoke_args=invoke_args,
+                                                    invoke_kwds=invoke_kwds,
+                                                    )