Package org.apache.log4j.varia

Class FallbackErrorHandler

  • All Implemented Interfaces:
    ErrorHandler, OptionHandler
    public class FallbackErrorHandler
extends java.lang.Object
implements ErrorHandler
    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

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void activateOptions()
      No options to activate.
      void error​(java.lang.String message)
      Print a the error message passed as parameter on System.err.
      void error​(java.lang.String message, java.lang.Exception e, int errorCode)
      Prints the message and the stack trace of the exception on System.err.
      void error​(java.lang.String message, java.lang.Exception e, int errorCode, LoggingEvent event)
      Prints the message and the stack trace of the exception on System.err.
      void setAppender​(Appender primary)
      The appender to which this error handler is attached.
      void setBackupAppender​(Appender backup)
      Set the backup appender.
      void setLogger​(Logger logger)
      Adds the logger passed as parameter to the list of loggers that we need to search for in case of appender failure.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • FallbackErrorHandler

        public FallbackErrorHandler()

    • Method Detail

      • setLogger

        public void setLogger​(Logger logger)
        Adds the logger passed as parameter to the list of loggers that we need to search for in case of appender failure.
        Specified by:
        setLogger in interface ErrorHandler
        Parameters:
        logger - One of the loggers that will be searched for the failing appender in view of replacement.

      • error

        public void error​(java.lang.String message,
                  java.lang.Exception e,
                  int errorCode)
        Prints the message and the stack trace of the exception on System.err.
        Specified by:
        error in interface ErrorHandler

      • error

        public void error​(java.lang.String message,
                  java.lang.Exception e,
                  int errorCode,
                  LoggingEvent event)
        Prints the message and the stack trace of the exception on System.err.
        Specified by:
        error in interface ErrorHandler
        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.

      • error

        public void error​(java.lang.String message)
        Print a the error message passed as parameter on System.err.
        Specified by:
        error in interface ErrorHandler

      • setAppender

        public void setAppender​(Appender primary)
        The appender to which this error handler is attached.
        Specified by:
        setAppender in interface ErrorHandler