Package org.apache.log4j.varia
Class FallbackErrorHandler
java.lang.Object
org.apache.log4j.varia.FallbackErrorHandler
- All Implemented Interfaces:
ErrorHandler,OptionHandler
The
FallbackErrorHandler implements the ErrorHandler interface such that a secondary appender may be
specified. This secondary appender takes over if the primary appender fails for whatever reason.
The error message is printed on System.err, and logged in the new secondary appender.
- Author:
- Ceki Gücü
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidNo options to activate.voidPrint a the error message passed as parameter onSystem.err.voidPrints the message and the stack trace of the exception onSystem.err.voiderror(String message, Exception e, int errorCode, LoggingEvent event) Prints the message and the stack trace of the exception onSystem.err.voidsetAppender(Appender primary) The appender to which this error handler is attached.voidsetBackupAppender(Appender backup) Set the backup appender.voidAdds the logger passed as parameter to the list of loggers that we need to search for in case of appender failure.
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Constructor Details
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FallbackErrorHandler
public FallbackErrorHandler()
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Method Details
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setLogger
Adds the logger passed as parameter to the list of loggers that we need to search for in case of appender failure.- Specified by:
setLoggerin interfaceErrorHandler- Parameters:
logger- One of the loggers that will be searched for the failing appender in view of replacement.
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activateOptions
public void activateOptions()No options to activate.- Specified by:
activateOptionsin interfaceOptionHandler
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error
Prints the message and the stack trace of the exception onSystem.err.- Specified by:
errorin interfaceErrorHandler
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error
Prints the message and the stack trace of the exception onSystem.err.- Specified by:
errorin interfaceErrorHandler- Parameters:
message- The message assoicated with the error.e- The Exption that was thrown when the error occured.errorCode- The error code associated with the error.event- The logging event that the failing appender is asked to log.
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error
Print a the error message passed as parameter onSystem.err.- Specified by:
errorin interfaceErrorHandler
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setAppender
The appender to which this error handler is attached.- Specified by:
setAppenderin interfaceErrorHandler
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setBackupAppender
Set the backup appender.- Specified by:
setBackupAppenderin interfaceErrorHandler
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