org.springframework.batch.repeat.exception
Class LogOrRethrowExceptionHandler

java.lang.Object
  org.springframework.batch.repeat.exception.LogOrRethrowExceptionHandler

All Implemented Interfaces:

ExceptionHandler

public class LogOrRethrowExceptionHandler
extends Object
implements ExceptionHandler

Implementation of ExceptionHandler based on an ExceptionClassifier. The classifier determines whether to log the exception or rethrow it. The keys in the classifier must be the same as the static contants in this class.

Author:

Dave Syer

Field Summary

static String	DEBUG Key for ExceptionClassifier signalling that the throwable should be logged at debug level.
static String	ERROR Key for ExceptionClassifier signalling that the throwable should be logged at error level.
protected org.apache.commons.logging.Log	logger
static String	RETHROW Key for ExceptionClassifier signalling that the throwable should be rethrown.
static String	WARN Key for ExceptionClassifier signalling that the throwable should be logged at warn level.

Constructor Summary

LogOrRethrowExceptionHandler()

Method Summary

void	handleException(RepeatContext context, Throwable throwable) Classify the throwables and decide whether to rethrow based on the result.
void	setExceptionClassifier(ExceptionClassifier exceptionClassifier) Setter for the ExceptionClassifier used by this handler.

Methods inherited from class java.lang.Object

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

Field Detail

RETHROW

public static final String RETHROW

Key for ExceptionClassifier signalling that the throwable should be rethrown. If the throwable is not a RuntimeException it is wrapped in a RepeatException.

See Also:

Constant Field Values

DEBUG

public static final String DEBUG

Key for ExceptionClassifier signalling that the throwable should be logged at debug level.

See Also:

Constant Field Values

WARN

public static final String WARN

Key for ExceptionClassifier signalling that the throwable should be logged at warn level.

See Also:

Constant Field Values

ERROR

public static final String ERROR

Key for ExceptionClassifier signalling that the throwable should be logged at error level.

See Also:

Constant Field Values

logger

protected final org.apache.commons.logging.Log logger

Constructor Detail

LogOrRethrowExceptionHandler

public LogOrRethrowExceptionHandler()

Method Detail

setExceptionClassifier

public void setExceptionClassifier(ExceptionClassifier exceptionClassifier)

Setter for the ExceptionClassifier used by this handler. The default is to map all throwable instances to RETHROW.

Parameters:

exceptionClassifier -

handleException

public void handleException(RepeatContext context,
                            Throwable throwable)
                     throws Throwable

Classify the throwables and decide whether to rethrow based on the result. The context is not used.

Specified by:

handleException in interface ExceptionHandler

Parameters:

context - the current RepeatContext. Can be used to store state (via attributes), for example to count the number of occurrences of a particular exception type and implement a threshold policy.

throwable - an exception.

Throws:

Throwable

See Also:

ExceptionHandler.handleException(RepeatContext, Throwable)