74 lines
2.3 KiB
Java
74 lines
2.3 KiB
Java
/*
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* This file is part of PlaceholderAPI
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*
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* PlaceholderAPI
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* Copyright (c) 2015 - 2021 PlaceholderAPI Team
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*
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* PlaceholderAPI free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlaceholderAPI is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package me.clip.placeholderapi.util;
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import java.util.Collection;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.function.BiConsumer;
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import java.util.stream.Collector;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import org.bukkit.Bukkit;
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import org.bukkit.plugin.Plugin;
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import org.jetbrains.annotations.NotNull;
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public final class Futures {
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private Futures() {}
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public static <T> void onMainThread(@NotNull final Plugin plugin,
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@NotNull final CompletableFuture<T> future,
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@NotNull final BiConsumer<T, Throwable> consumer) {
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future.whenComplete((value, exception) -> {
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consumer.accept(value, exception);
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});
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}
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@NotNull
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public static <T> Collector<CompletableFuture<T>, ?, CompletableFuture<List<T>>> collector() {
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return Collectors.collectingAndThen(Collectors.toList(), Futures::of);
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}
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@NotNull
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public static <T> CompletableFuture<List<T>> of(
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@NotNull final Stream<CompletableFuture<T>> futures) {
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return of(futures.collect(Collectors.toList()));
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}
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@NotNull
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public static <T> CompletableFuture<List<T>> of(
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@NotNull final Collection<CompletableFuture<T>> futures) {
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return CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
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.thenApplyAsync($ -> awaitCompletion(futures));
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}
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@NotNull
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private static <T> List<T> awaitCompletion(
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@NotNull final Collection<CompletableFuture<T>> futures) {
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return futures.stream().map(CompletableFuture::join).collect(Collectors.toList());
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}
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}
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