- Tease out an extra 4% performance boost by changing the Router;

  instead of using imported ZCA APIs, use the same APIs directly
  against the registry that is an attribute of the Router.  As a
  result, the registry used by BFG is now a subclass of
  ``zope.component.registry.Components`` (defined as
  ``repoze.bfg.registry.Registry``); it has a ``notify`` method.

1 files changed, 9 insertions, 6 deletions

diff --git a/repoze/bfg/registry.py b/repoze/bfg/registry.py
index c62a92a7d..d1dff6744 100644
--- a/repoze/bfg/registry.py
+++ b/repoze/bfg/registry.py
@@ -3,9 +3,10 @@ import threading
 import zope.component
 
 from zope.component import getGlobalSiteManager
+from zope.component import getSiteManager as original_getSiteManager
 from zope.component.interfaces import ComponentLookupError
 from zope.component.interfaces import IComponentLookup
-from zope.component import getSiteManager as original_getSiteManager
+from zope.component.registry import Components
 
 from zope.deferredimport import deprecated
 
@@ -23,6 +24,12 @@ deprecated(
     get_options = "repoze.bfg.settings:get_options",
     )
 
+class Registry(Components):
+    def notify(self, *events):
+        # iterating over subscribers assures they get executed
+        for ignored in self.subscribers(events, None):
+            pass
+
 class ThreadLocalRegistryManager(threading.local):
     def __init__(self):
         self.stack = []
@@ -90,9 +97,5 @@ def getSiteManager(context=None):
             raise ComponentLookupError(*error.args)
 
 from zope.testing.cleanup import addCleanUp
-try:
-    addCleanUp(original_getSiteManager.reset)
-except AttributeError:
-    # zope.hookable not yet installed
-    pass
+addCleanUp(original_getSiteManager.reset) # AttributeError: zope.hookable not installed
 addCleanUp(registry_manager.clear)