Package org.drasyl.util

Class FutureUtil

java.lang.Object

org.drasyl.util.FutureUtil

public class FutureUtil
extends Object

Utility class for future-related operations.

Method Summary

Modifier and Type	Method	Description
static void	completeOnAllOf(CompletableFuture<Void> future, Collection<CompletableFuture<?>> futures)	Completes future if all of the given futures are completed.
static void	completeOnAllOf(CompletableFuture<Void> future, CompletableFuture<?>... futures)	Completes future if all of the given futures are completed.
static void	completeOnAnyOfExceptionally(CompletableFuture<?> future, Collection<CompletableFuture<?>> futures)	Completes future exceptionally if one of the given futures are completed exceptionally.
static void	completeOnAnyOfExceptionally(CompletableFuture<?> future, CompletableFuture<?>... futures)	Completes future exceptionally if one of the given futures are completed exceptionally.
static CompletableFuture<Void>	getCompleteOnAllOf(Collection<CompletableFuture<?>> futures)	Returns a completed future if all of the given futures are completed.
static CompletableFuture<Void>	getCompleteOnAllOf(CompletableFuture<?>... futures)	Returns a completed future if all of the given futures are completed.
static <T> CompletableFuture<T>	toFuture(io.netty.util.concurrent.Future<T> future)	Translates the Netty Future to a CompletableFuture.

Methods inherited from class java.lang.Object

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

Method Detail

toFuture

public static <T> CompletableFuture<T> toFuture(io.netty.util.concurrent.Future<T> future)

Translates the Netty Future to a CompletableFuture.

Type Parameters:

T - The result type of the future

Parameters:

future - The future to be translated

Returns:

The translated CompletableFuture

completeOnAnyOfExceptionally

public static void completeOnAnyOfExceptionally(CompletableFuture<?> future,
                                                Collection<CompletableFuture<?>> futures)

Completes future exceptionally if one of the given futures are completed exceptionally. If the given array of futures is empty, nothing happens.

Parameters:

future - future that should be completed

futures - futures that should be waited for

Throws:

NullPointerException - if future or futures is null

completeOnAnyOfExceptionally

public static void completeOnAnyOfExceptionally(CompletableFuture<?> future,
                                                CompletableFuture<?>... futures)

Completes future exceptionally if one of the given futures are completed exceptionally. If the given array of futures is empty, nothing happens.

Parameters:

future - future that should be completed

futures - futures that should be waited for

Throws:

NullPointerException - if future or futures is null

getCompleteOnAllOf

public static CompletableFuture<Void> getCompleteOnAllOf(Collection<CompletableFuture<?>> futures)

Returns a completed future if all of the given futures are completed. When any of the given futures completes exceptionally, the future will also completes exceptionally immediately. If the given list of futures is empty, the future is completed immediately.

Parameters:

futures - futures that should be waited for

Throws:

NullPointerException - if futures is null

getCompleteOnAllOf

public static CompletableFuture<Void> getCompleteOnAllOf(CompletableFuture<?>... futures)

Returns a completed future if all of the given futures are completed. When any of the given futures completes exceptionally, the future will also completes exceptionally immediately. If the given array of futures is empty, the future is completed immediately.

Parameters:

futures - futures that should be waited for

Throws:

NullPointerException - if futures is null

completeOnAllOf

public static void completeOnAllOf(CompletableFuture<Void> future,
                                   Collection<CompletableFuture<?>> futures)

Completes future if all of the given futures are completed. When any of the given futures completes exceptionally, the given future will also completes exceptionally immediately. If the given list of futures is empty, the future is completed immediately.

Parameters:

future - future that should be completed

futures - futures that should be waited for

Throws:

NullPointerException - if future or futures is null

completeOnAllOf

public static void completeOnAllOf(CompletableFuture<Void> future,
                                   CompletableFuture<?>... futures)

Completes future if all of the given futures are completed. When any of the given futures completes exceptionally, the given future will also completes exceptionally immediately. If the given array of futures is empty, the future is completed immediately.

Parameters:

future - future that should be completed

futures - futures that should be waited for

Throws:

NullPointerException - if future or futures is null