Appenders that extend AppenderSkeleton have an ErrorHandler property that is
trigged when an error occurs. I modified the default error handler,
OnlyOnceErrorHandler, to add public properties for Message, Exception, and
ErrorCode. I don't think they belong on the IErrorHandler interface because not
all IErrorHandler implementations necessarily care about the last time the
Error methods were called. I also modified OnlyOnceErrorHandler to report the
ErrorCode.
You could write this in your application start up code:
OnlyOnceErrorHandler errorHandler =
(OnlyOnceErrorHandler)rollingFileAppender.ErrorHandler;
throw new LogException(String.Format("Unable to configure RollingFileAppender
[{0}]. ErrorCode: [{1}]. Message: [{2}]",
rollingFileAppender.Name, // 0
errorHandler.ErrorCode, // 1
errorHandler.Message), errorHandler.Exception); // 2
I'll make an issue and upload the patch when Jira its back on-line.
Another improvement may be to allow a default IErrorHandler to be set at the
repository level so all appenders automatically use that instead of
OnlyOnceErrorHandler. Add it to Hierarchy instead of LoggerRepositorySkeleton?
----- Original Message ----
From: Bill Schmidt <[EMAIL PROTECTED]>
To: log4net-user@logging.apache.org
Sent: Thursday, September 28, 2006 3:30:21 PM
Subject: Retrieving log4net error conditions
Hello list,
I am wondering if there is a way to recieve an error messages from log4net
1.2.10 if it is unable to write to a log file. Reading through the release faq
( http://logging.apache.org/log4net/release/faq.html) I see that exceptions
should not be thrown, however is there some method I can call to see what the
last error(if any) log4net encountered when writing to the log.
To be more specific, I am using a RollingFileAppender with C# to log for my
application. If the appender is configured to log to a drive that is full or
not present, is there a way after I write a message to see if the write was
successful so that if there was a problem I can notify the user in some way.
ie:
log.ERROR("my error message");
success = log.getsuccess();
thank you
-Bill
