svn commit: r161663 - gump/branches/Gump3/pygump/python/gump/plugins/__init__.py

[le...@apache.org]

Author: leosimons
Date: Sun Apr 17 08:47:58 2005
New Revision: 161663

URL: http://svn.apache.org/viewcvs?view=rev&rev=161663
Log:
Create a new error handler which swallows exceptions.

* pygump/python/gump/plugins/__init__.py: new OptimisticLoggingErrorHandler that does not re-raise exceptions but rather stores them as part of the relevant model element. This enables processing to continue in the case of malfunctioning plugins, but is a rather 'crude' setup mostly useful for debugging.

Modified:
    gump/branches/Gump3/pygump/python/gump/plugins/__init__.py

Modified: gump/branches/Gump3/pygump/python/gump/plugins/__init__.py
URL: http://svn.apache.org/viewcvs/gump/branches/Gump3/pygump/python/gump/plugins/__init__.py?view=diff&r1=161662&r2=161663
==============================================================================
--- gump/branches/Gump3/pygump/python/gump/plugins/__init__.py (original)
+++ gump/branches/Gump3/pygump/python/gump/plugins/__init__.py Sun Apr 17 08:47:58 2005
@@ -26,6 +26,8 @@
 
 import sys
 
+from gump.model import ModelObject
+
 class BaseErrorHandler:
     """Base error handler for use with the MulticastPlugin.
     
@@ -48,6 +50,22 @@
         """Override this method to be able to swallow exceptions."""
         self.log.exception("%s threw an exception while visiting %s!" % (visitor, visited_model_object))
         raise type, value
+
+class OptimisticLoggingErrorHandler:
+    """Logging error handler for use with the MulticastPlugin.
+    
+    This handler logs a caught error then stores it on the model.
+    """
+    def __init__(self, log):
+        self.log = log
+
+    def handle(self, visitor, visited_model_object, type, value, traceback):
+        """Override this method to be able to swallow exceptions."""
+        self.log.exception("%s threw an exception while visiting %s!" % (visitor, visited_model_object))
+        if isinstance(visited_model_object, ModelObject):
+            if not hasattr(visited_model_object, 'exceptions'):
+                visited_model_object.exceptions = []
+            visited_model_object.exceptions.append( (type, value, traceback) )
 
 class AbstractPlugin:
     """Base class for all plugins.