org.apache.flink.util

Class ExceptionUtils

java.lang.Object

org.apache.flink.util.ExceptionUtils

@Internal
public final class ExceptionUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static void	rethrow(Throwable t) Throws the given Throwable in scenarios where the signatures do not allow you to throw an arbitrary Throwable.
static void	rethrow(Throwable t, String parentMessage) Throws the given Throwable in scenarios where the signatures do not allow you to throw an arbitrary Throwable.
static String	stringifyException(Throwable e) Makes a string representation of the exception's stack trace, or "(null)", if the exception is null.
static void	tryRethrowIOException(Throwable t) Tries to throw the given Throwable in scenarios where the signatures allows only IOExceptions (and RuntimeException and Error).

Methods inherited from class java.lang.Object

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

Method Detail

stringifyException

public static String stringifyException(Throwable e)

Makes a string representation of the exception's stack trace, or "(null)", if the exception is null. This method makes a best effort and never fails.

Parameters:

e - The exception to stringify.

Returns:

A string with exception name and call stack.

rethrow

public static void rethrow(Throwable t)

Throws the given Throwable in scenarios where the signatures do not allow you to throw an arbitrary Throwable. Errors and RuntimeExceptions are thrown directly, other exceptions are packed into runtime exceptions

Parameters:

t - The throwable to be thrown.

rethrow

public static void rethrow(Throwable t,
                           String parentMessage)

Throws the given Throwable in scenarios where the signatures do not allow you to throw an arbitrary Throwable. Errors and RuntimeExceptions are thrown directly, other exceptions are packed into a parent RuntimeException.

Parameters:

t - The throwable to be thrown.

parentMessage - The message for the parent RuntimeException, if one is needed.

tryRethrowIOException

public static void tryRethrowIOException(Throwable t)
                                  throws IOException

Tries to throw the given Throwable in scenarios where the signatures allows only IOExceptions (and RuntimeException and Error). Throws this exception directly, if it is an IOException, a RuntimeException, or an Error. Otherwise does nothing.

Parameters:

t - The throwable to be thrown.

Throws:

IOException