software.amazon.awssdk.utils

Class CompletableFutureUtils

java.lang.Object

software.amazon.awssdk.utils.CompletableFutureUtils

public final class CompletableFutureUtils
extends Object

Utility class for working with CompletableFuture.

Method Summary

Modifier and Type	Method and Description
static CompletionException	errorAsCompletionException(Throwable t) Wraps the given error in a CompletionException if necessary.
static <U> CompletableFuture<U>	failedFuture(Throwable t) Convenience method for creating a future that is immediately completed exceptionally with the given Throwable.

Methods inherited from class java.lang.Object

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

Method Detail

failedFuture

public static <U> CompletableFuture<U> failedFuture(Throwable t)

Convenience method for creating a future that is immediately completed exceptionally with the given Throwable.

Similar to CompletableFuture#failedFuture which was added in Java 9.

Type Parameters:

U - The type of the element.

Parameters:

t - The failure.

Returns:

The failed future.

errorAsCompletionException

public static CompletionException errorAsCompletionException(Throwable t)

Wraps the given error in a CompletionException if necessary. Useful if an exception needs to be rethrown from within CompletableFuture.handle(java.util.function.BiFunction) or similar methods.

Parameters:

t - The error.

Returns:

The error as a CompletionException.