Package edu.cornell.mannlib.vitro.webapp.utils.logging

Class StackTraceLayout

java.lang.Object

org.apache.log4j.Layout

edu.cornell.mannlib.vitro.webapp.utils.logging.StackTraceLayout

All Implemented Interfaces:

org.apache.log4j.spi.OptionHandler

public class StackTraceLayout
extends org.apache.log4j.Layout

This is a nasty Layout that prints a full stack trace for every logging event. Here is an example of how to use this to show full stack traces every time we get a log message from org.apache.jena.riot.

 log4j.appender.RiotAppender=org.apache.log4j.RollingFileAppender
 log4j.appender.RiotAppender.File= $${catalina.base}/logs/${webapp.name}.riot.log
 log4j.appender.RiotAppender.MaxFileSize=10MB
 log4j.appender.RiotAppender.MaxBackupIndex=10
 log4j.appender.RiotAppender.layout=edu.cornell.mannlib.vitro.webapp.utils.logging.StackTraceLayout
 log4j.logger.org.apache.jena.riot=INFO, RiotAppender
 

Field Summary

Fields inherited from class org.apache.log4j.Layout

LINE_SEP, LINE_SEP_LEN

Constructor Summary

Constructors

Constructor	Description
StackTraceLayout()

Method Summary

Modifier and Type	Method	Description
void	activateOptions()
String	format(org.apache.log4j.spi.LoggingEvent event)	Print the level, the message, and the full stack trace.
boolean	ignoresThrowable()	The StackTraceLayout does not handle the throwable contained within LoggingEvents.

Methods inherited from class org.apache.log4j.Layout

getContentType, getFooter, getHeader

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StackTraceLayout

public StackTraceLayout()

Method Detail

activateOptions

public void activateOptions()

format

public String format(org.apache.log4j.spi.LoggingEvent event)

Print the level, the message, and the full stack trace.

Specified by:

format in class org.apache.log4j.Layout

ignoresThrowable

public boolean ignoresThrowable()

The StackTraceLayout does not handle the throwable contained within LoggingEvents. Thus, it returns true.

Specified by:

ignoresThrowable in class org.apache.log4j.Layout