Thu, 31 Aug 2017 15:18:52 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.xml.internal.ws.util; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.util.concurrent.ExecutionException; |
aoqi@0 | 29 | import java.util.concurrent.Future; |
aoqi@0 | 30 | import java.util.concurrent.TimeUnit; |
aoqi@0 | 31 | |
aoqi@0 | 32 | /** |
aoqi@0 | 33 | * {@link Future} implementation that obtains an already available value. |
aoqi@0 | 34 | * |
aoqi@0 | 35 | * @author Kohsuke Kawaguchi |
aoqi@0 | 36 | * @author Jitendra Kotamraju |
aoqi@0 | 37 | */ |
aoqi@0 | 38 | public class CompletedFuture<T> implements Future<T> { |
aoqi@0 | 39 | private final T v; |
aoqi@0 | 40 | private final Throwable re; |
aoqi@0 | 41 | |
aoqi@0 | 42 | public CompletedFuture(T v, Throwable re) { |
aoqi@0 | 43 | this.v = v; |
aoqi@0 | 44 | this.re = re; |
aoqi@0 | 45 | } |
aoqi@0 | 46 | |
aoqi@0 | 47 | public boolean cancel(boolean mayInterruptIfRunning) { |
aoqi@0 | 48 | return false; |
aoqi@0 | 49 | } |
aoqi@0 | 50 | |
aoqi@0 | 51 | public boolean isCancelled() { |
aoqi@0 | 52 | return false; |
aoqi@0 | 53 | } |
aoqi@0 | 54 | |
aoqi@0 | 55 | public boolean isDone() { |
aoqi@0 | 56 | return true; |
aoqi@0 | 57 | } |
aoqi@0 | 58 | |
aoqi@0 | 59 | public T get() throws ExecutionException { |
aoqi@0 | 60 | if (re != null) { |
aoqi@0 | 61 | throw new ExecutionException(re); |
aoqi@0 | 62 | } |
aoqi@0 | 63 | return v; |
aoqi@0 | 64 | } |
aoqi@0 | 65 | |
aoqi@0 | 66 | public T get(long timeout, TimeUnit unit) throws ExecutionException { |
aoqi@0 | 67 | return get(); |
aoqi@0 | 68 | } |
aoqi@0 | 69 | } |