Package org.axonframework.common

Class ExceptionUtils

java.lang.Object

org.axonframework.common.ExceptionUtils

public final class ExceptionUtils
extends Object

Exception utility methods.

Author:

Rene de Waele

Method Summary

Modifier and Type	Method	Description
static <T extends Throwable> Optional<T>	findException(Throwable exception, Class<T> exceptionClass)	Checks if the given exception class is an instance of the given exceptionClass.
static Optional<Throwable>	findException(Throwable exception, Predicate<Throwable> predicate)	Checks if the given exception matches the given predicate.
static boolean	isExplicitlyNonTransient(Throwable failure)	Indicates whether the given failure is clearly non-transient.

Methods inherited from class java.lang.Object

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

Method Details

findException

public static Optional<Throwable> findException(Throwable exception,
 Predicate<Throwable> predicate)

Checks if the given exception matches the given predicate. If it does an optional with the exception is returned, if not the cause of the exception is checked and returned if matching and so on until a match is found. If neither the given exception nor any of its causes match the predicate an empty Optional is returned.

Parameters:

exception - the exception to check

predicate - the predicate to check the exception and its causes

Returns:

an optional containing the exception matching the predicate or an empty optional if neither the given exception nor any of its causes match the predicate

findException

public static <T extends Throwable> Optional<T> findException(Throwable exception,
 Class<T> exceptionClass)

Checks if the given exception class is an instance of the given exceptionClass. If so an optional with the exception is returned. If not the cause of the exception is checked and returned if matching and so on until a match is found. If neither the given exception nor any of its causes match the predicate an empty Optional is returned.

Parameters:

exception - the exception to check

exceptionClass - the target exception class

Returns:

an optional containing the exception matching the predicate or an empty optional if neither the given exception nor any of its causes match the predicate

isExplicitlyNonTransient

public static boolean isExplicitlyNonTransient(Throwable failure)

Indicates whether the given failure is clearly non-transient. Non-transient exceptions indicate that the handling of the message will fail in the same way if retried

Parameters:

failure - the exception that occurred while processing a message

Returns:

true if the exception is clearly non-transient