2 * Copyright (c) 2010-2022 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.heos.internal.handler;
15 import java.util.concurrent.Future;
17 import org.eclipse.jdt.annotation.NonNullByDefault;
18 import org.eclipse.jdt.annotation.Nullable;
21 * Instead of continously rewriting the termination of future a small util method was added
23 * @author Martin van Wingerden - Initial Contribution
26 public class FutureUtil {
27 private FutureUtil() {
28 // this is a util no instances should be created
34 * - when it is not null
35 * - and it is not already cancelled
37 * interrupt if still/already running
39 * @param future nullable future to be cancelled
41 public static void cancel(@Nullable Future<?> future) {
48 * - when it is not null
49 * - and it is not already cancelled
51 * @param future nullable future to be cancelled
52 * @param interruptIfRunning choose whether to interrupt a running future
54 public static void cancel(@Nullable Future<?> future, boolean interruptIfRunning) {
55 if (future != null && !future.isCancelled()) {
56 future.cancel(interruptIfRunning);