boone.util

Class ExceptionHandler

java.lang.Object

boone.util.ExceptionHandler

public class ExceptionHandler
extends java.lang.Object

Handle a Boone exception. This is a central place where exceptions occurring during running the neural net are reported. Most of the time, the network should just continue working, and not even print the exception, but it is important that somehow, the user can retrieve those things.

If an Exception should be raised nonetheless, we could raise a new RuntimeException.

Attention: Attacks are possible, if the location contains strings that were acquired from the outside (think terminal escape scripts).

Version:

$Id$

Author:

August Mayer

Field Summary

Fields

Modifier and Type	Field and Description
protected static ExceptionHandler	defaultHandler the default ExceptionHandler instance

Constructor Summary

Constructors

Constructor and Description
ExceptionHandler()

Method Summary

Modifier and Type	Method and Description
static ExceptionHandler	getDefaultHandler() Return the default exception handler.
static void	handle(java.lang.Throwable t, java.lang.String location) Handle an exception, generically.
void	handleException(java.lang.Throwable t, java.lang.String location) Default implementation: Just print the text to System.err .
static void	setDefaultHandler(ExceptionHandler handler) Set the default exception handler.

Methods inherited from class java.lang.Object

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

Field Detail

defaultHandler

protected static ExceptionHandler defaultHandler

the default ExceptionHandler instance

Constructor Detail

ExceptionHandler

public ExceptionHandler()

Method Detail

handle

public static void handle(java.lang.Throwable t,
                          java.lang.String location)

Handle an exception, generically. This method forwards the call to the ExeptionHandler's default handler instance.

Parameters:

t - An Exception that should be publicized somehow, but is then ignored.

location - Some description of the location where the Exception occurred. As the method name is already stored in the backtrace, some more exact description is needed.

setDefaultHandler

public static void setDefaultHandler(ExceptionHandler handler)

Set the default exception handler.

getDefaultHandler

public static ExceptionHandler getDefaultHandler()

Return the default exception handler.

handleException

public void handleException(java.lang.Throwable t,
                            java.lang.String location)

Default implementation: Just print the text to System.err .

Parameters:

t - An Exception that should be publicized somehow, but is then ignored.

location - Some description of the location where the Exception occurred. As the method name is already stored in the backtrace, some more exact description is needed.