/hudson-remoting/src/main/java/hudson/remoting/FutureAdapter.java

 1/*
 2 * The MIT License
 3 * 
 4 * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
 5 * 
 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
 7 * of this software and associated documentation files (the "Software"), to deal
 8 * in the Software without restriction, including without limitation the rights
 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 * 
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 * 
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24package hudson.remoting;
25
26import java.util.concurrent.ExecutionException;
27import java.util.concurrent.TimeUnit;
28import java.util.concurrent.TimeoutException;
29
30/**
31 * {@link Future} that converts the return type.
32 *
33 * @author Kohsuke Kawaguchi
34 */
35abstract class FutureAdapter<X,Y> implements Future<X> {
36    protected final Future<Y> core;
37
38    protected FutureAdapter(Future<Y> core) {
39        this.core = core;
40    }
41
42    public boolean cancel(boolean mayInterruptIfRunning) {
43        return core.cancel(mayInterruptIfRunning);
44    }
45
46    public boolean isCancelled() {
47        return core.isCancelled();
48    }
49
50    public boolean isDone() {
51        return core.isDone();
52    }
53
54    public X get() throws InterruptedException, ExecutionException {
55        return adapt(core.get());
56    }
57
58    public X get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
59        return adapt(core.get(timeout, unit));
60    }
61
62    protected abstract X adapt(Y y) throws ExecutionException;
63}