| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.concurrency; |
| |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Author: dmitrylomov |
| */ |
| public class AsyncUtil { |
| private static final AsyncFuture<Boolean> TRUE = createConst(true); |
| private static final AsyncFuture<Boolean> FALSE = createConst(false); |
| |
| public static <V> V get(@NotNull Future<V> result) { |
| try { |
| return result.get(); |
| } |
| catch (InterruptedException e) { |
| throw new Error(e); |
| } |
| catch (ExecutionException e) { |
| Throwable cause = e.getCause(); |
| if (cause instanceof RuntimeException) { |
| throw (RuntimeException)cause; |
| } |
| else { |
| throw new Error(cause); |
| } |
| } |
| } |
| |
| private static AsyncFuture<Boolean> createConst(final boolean result) { |
| return new AsyncFuture<Boolean>() { |
| @Override |
| public void addConsumer(@NotNull Executor executor, @NotNull ResultConsumer<Boolean> consumer) { |
| consumer.onSuccess(result); |
| } |
| |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| return false; |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isDone() { |
| return true; |
| } |
| |
| @Override |
| public Boolean get() { |
| return result; |
| } |
| |
| @Override |
| public Boolean get(long timeout, @NotNull TimeUnit unit) { |
| return result; |
| } |
| }; |
| } |
| |
| @NotNull |
| public static AsyncFuture<Boolean> wrapBoolean(boolean result) { |
| return result ? TRUE : FALSE; |
| } |
| } |