Or you can use what I wrote to handle that:
import org.apache.log4j.*;
import org.apache.log4j.spi.*;
/**
* Extends PatternLayout to also handle Throwable items attached to
* LoggingEvents.
*/
public class PatternWithThrowableLayout extends PatternLayout {
/**
* Constructs a PatternWithThrowableLayout using the
DEFAULT_LAYOUT_PATTERN.
*
* The default pattern just produces the application supplied message.
*/
public PatternWithThrowableLayout() {
super();
}
/**
* Constructs a PatternWithThrowableLayout using the supplied conversion
pattern.
*
* @param pattern
*/
public PatternWithThrowableLayout(String pattern) {
super(pattern);
}
/**
* Produces a formatted string as specified by the conversion pattern.<p>
*
* If there's a Throwable attached to the LoggingEvent, its StackTrace is
* appended.
*
* @param event the event to log
*
* @return the formatted String
*/
public String format(LoggingEvent event) {
String str = super.format(event);
if (event.throwable != null) {
// for storing stack trace
ByteArrayOutputStream os = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(os); // printing destination
event.throwable.printStackTrace(ps);
return str+os.toString();
}
else {
return str;
}
}
/**
* The PatternWithThrowableLayout handles the throwable contained within
* {@link LoggingEvent LoggingEvents}. Thus, it returns
* <code>false</code>.
*
* @return FALSE
*/
public boolean ignoresThrowable() {
return false;
}
}
-Jim Moore
"Pinky, you've left the lens cap of your mind on again." - The Brain.
-----Original Message-----
From: Ceki Gülcü [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 06, 2001 12:53 PM
To: LOG4J Users Mailing List
Subject: Re: SMTPAppender and exceptions
Omer,
This is a bug! The SMTPAppender assumes that its layout takes care of the
exception, which is not the case with the PatternLayout. I suggest that you
use the HTMLLayout with SMTPAppender until the bug gets fixed. Ceki
At 12:48 06.02.2001 -0500, you wrote:
>Hi,
>
>I'm using SMTPAppender to send out an e-mail whenever an error event is
>logged. I'm finding that when I log an exception like this
>
>catch (Exception e)
>{
> cat.error("Oops!", e);
>}
>
>the e-mail will only have the "Oops!" line, whereas my rotating file log
>will also have the stack trace.
>
>I'd like to have the stack trace in the e-mail as well. Is there a
>simple way to do that?
>
>Thanks,
>
> Omer van der Horst Jansen
>
>[EMAIL PROTECTED]
>
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----
Ceki Gülcü e-mail: [EMAIL PROTECTED] (preferred)
av. de Rumine 5 [EMAIL PROTECTED]
CH-1005 Lausanne
Switzerland Tel: ++41 21 351 23 15
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