1 package org.apache.maven.surefire.junitcore.pc;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.concurrent.CancellationException;
23 import java.util.concurrent.ConcurrentLinkedQueue;
24 import java.util.concurrent.ExecutionException;
25 import java.util.concurrent.ExecutorService;
26 import java.util.concurrent.Future;
27
28 /**
29 * Parallel strategy for shared thread pool in private package.
30 *
31 * @author Tibor Digana (tibor17)
32 * @since 2.16
33 *
34 * @see AbstractThreadPoolStrategy
35 */
36 final class SharedThreadPoolStrategy extends AbstractThreadPoolStrategy {
37 SharedThreadPoolStrategy(ExecutorService threadPool) {
38 super(threadPool, new ConcurrentLinkedQueue<Future<?>>());
39 }
40
41 @Override
42 public boolean hasSharedThreadPool() {
43 return true;
44 }
45
46 @Override
47 public boolean finished() throws InterruptedException {
48 boolean wasRunningAll = canSchedule();
49 for (Future<?> futureResult : getFutureResults()) {
50 try {
51 futureResult.get();
52 } catch (InterruptedException e) {
53 // after called external ExecutorService#shutdownNow()
54 // or ExecutorService#shutdown()
55 wasRunningAll = false;
56 } catch (ExecutionException e) {
57 // test throws exception
58 } catch (CancellationException e) {
59 // cannot happen because not calling Future#cancel()
60 }
61 }
62 disable();
63 return wasRunningAll;
64 }
65
66 @Override
67 protected final boolean stop() {
68 return stop(false);
69 }
70
71 @Override
72 protected final boolean stopNow() {
73 return stop(true);
74 }
75
76 private boolean stop(boolean interrupt) {
77 final boolean wasRunning = canSchedule();
78 for (Future<?> futureResult : getFutureResults()) {
79 futureResult.cancel(interrupt);
80 }
81 disable();
82 return wasRunning;
83 }
84 }