org.openbase.bco.authentication.lib

Class ExceptionReporter

java.lang.Object

org.openbase.jul.pattern.AbstractObservable<T>

org.openbase.jul.pattern.ObservableImpl<ExceptionReporter.ExceptionReport>

org.openbase.bco.authentication.lib.ExceptionReporter

All Implemented Interfaces:

org.openbase.jul.iface.Shutdownable, org.openbase.jul.pattern.Observable<ExceptionReporter.ExceptionReport>

public class ExceptionReporter
extends org.openbase.jul.pattern.ObservableImpl<ExceptionReporter.ExceptionReport>

This class can be used to keep track of frequently occurring exceptions. Exceptions are grouped by their type (class) and by the place they occurred (class, method, line number, accessed over the stack trace). Observers can subscribe to be notified when an exception is reported frequently from the same place.

Author:

Constantin Romankiewicz

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ExceptionReporter.ExceptionReport Inner class holding information about how often an exception was reported.

Nested classes/interfaces inherited from interface org.openbase.jul.iface.Shutdownable

org.openbase.jul.iface.Shutdownable.ShutdownDeamon

Field Summary

Fields inherited from class org.openbase.jul.pattern.AbstractObservable

latestValueHash, NOTIFICATION_LOCK, observers, unchangedValueFilter

Method Summary

Modifier and Type	Method and Description
static ExceptionReporter	getInstance()
void	report(Throwable th) Reports an exception.
void	report(Throwable th, int limit) Reports an exception.

Methods inherited from class org.openbase.jul.pattern.ObservableImpl

applyValueUpdate, getValue, getValueFuture, isValueAvailable, waitForValue

Methods inherited from class org.openbase.jul.pattern.AbstractObservable

addObserver, isNotificationInProgess, notifyObservers, notifyObservers, removeObserver, setExecutorService, setHashGenerator, shutdown, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openbase.jul.pattern.Observable

getLatestValue, waitForValue

Methods inherited from interface org.openbase.jul.iface.Shutdownable

registerShutdownHook, registerShutdownHook

Method Detail

getInstance

public static ExceptionReporter getInstance()

report

public void report(Throwable th)

Reports an exception. Without a limit given, the default limit is set to -1, meaning that no observers will be notified at any point, except if the limit has already been set before.

Parameters:

th - The exception to report.

report

public void report(Throwable th,
                   int limit)

Reports an exception. If more exceptions are reported from the same place than the limit allows, all observers of this instance will be notified.

Parameters:

th - The exception to report.

limit - How many times this exception may occur from the same place, until observers are notified.