org.mmbase.util.logging.log4j
Class StacktraceLoggingPatternLayout

java.lang.Object
  org.apache.log4j.Layout
      org.apache.log4j.PatternLayout
          org.mmbase.util.logging.log4j.StacktraceLoggingPatternLayout

All Implemented Interfaces:

OptionHandler

public class StacktraceLoggingPatternLayout

extends PatternLayout

This layout can be used in logging in order to print out a stacktrace for a given logging event. THis is a very expensive call, but can be very useful when trying to find application bugs. Using this layout you will see exactly which line of code (or which JSP) generated the exception.

Author:

Johannes Verelst

Field Summary

Fields inherited from class org.apache.log4j.PatternLayout

BUF_SIZE, DEFAULT_CONVERSION_PATTERN, MAX_CAPACITY, TTCC_CONVERSION_PATTERN

Fields inherited from class org.apache.log4j.Layout

LINE_SEP, LINE_SEP_LEN

Constructor Summary

StacktraceLoggingPatternLayout()

Method Summary

String

format(LoggingEvent event) Overridden from PatternLayout; use the normal pattern to format the logevent, but also return the current stacktrace.

Methods inherited from class org.apache.log4j.PatternLayout

activateOptions, createPatternParser, getConversionPattern, ignoresThrowable, setConversionPattern

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

StacktraceLoggingPatternLayout

public StacktraceLoggingPatternLayout()

Method Detail

format

public String format(LoggingEvent event)

Overridden from PatternLayout; use the normal pattern to format the logevent, but also return the current stacktrace.