blob: 5e6edd3c8c2b9fa0d2cee926dd9eacd6d156cb21 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* Copyright (C) 2016 Google Inc.
*
* 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.google.android.mobly.snippet.future;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
/** FutureResult represents an eventual execution result for asynchronous operations. */
public class FutureResult<T> implements Future<T> {
private final CountDownLatch mLatch = new CountDownLatch(1);
private volatile T mResult = null;
public void set(T result) {
mResult = result;
mLatch.countDown();
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
return false;
}
@Override
public T get() throws InterruptedException {
mLatch.await();
return mResult;
}
@Override
public T get(long timeout, TimeUnit unit) throws InterruptedException {
mLatch.await(timeout, unit);
return mResult;
}
@Override
public boolean isCancelled() {
return false;
}
@Override
public boolean isDone() {
return mResult != null;
}
}
|