Changeset 4884 for waeup/trunk

Timestamp:

23 Jan 2010, 18:01:03 (15 years ago)

Author:

uli

Message:

React via eventhandler when datacenter storage moves. We have to
reopen the application.log in that case.

File:

• waeup/trunk/src/waeup/app.py (modified) (2 diffs)

waeup/trunk/src/waeup/app.py

@@ -6 +6 @@
 from zope.component import createObject
 
-from waeup.interfaces import IUniversity, ICSVDataReceivers
+from waeup.interfaces import (IUniversity, ICSVDataReceivers, IDataCenter,
+                              IDataCenterStorageMovedEvent)
 from waeup.authentication import setup_authentication
 from waeup.datacenter import DataCenter
@@ -65 +66 @@
         logger.addHandler(handler)
         return logger
+
+@grok.subscribe(IDataCenter, IDataCenterStorageMovedEvent)
+def handle_storage_move(obj, event):
+    """Event handler, in case datacenter storage moves.
+
+    We initialize the application log again, then.
+    """
+    app = grok.getSite()
+    if app is None:
+        return
+    if obj is not app['datacenter']:
+        return
+    logger = app.logger
+    logger.warn('Log Dir moved. Closing.')
+    handlers = logger.handlers
+    for handler in handlers:
+        logger.removeHandler(handler)
+    app._setupLogger(logger)
+    logger.warn('Log file moved. Opening.')