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 * @see AbstractThreadPoolStrategy
33 * @since 2.16
34 */
35 final class SharedThreadPoolStrategy
36 extends AbstractThreadPoolStrategy
37 {
38 SharedThreadPoolStrategy( ExecutorService threadPool )
39 {
40 super( threadPool, new ConcurrentLinkedQueue<Future<?>>() );
41 }
42
43 @Override
44 public boolean hasSharedThreadPool()
45 {
46 return true;
47 }
48
49 @Override
50 public boolean finished()
51 throws InterruptedException
52 {
53 boolean wasRunningAll = canSchedule();
54 for ( Future<?> futureResult : getFutureResults() )
55 {
56 try
57 {
58 futureResult.get();
59 }
60 catch ( InterruptedException e )
61 {
62 // after called external ExecutorService#shutdownNow()
63 // or ExecutorService#shutdown()
64 wasRunningAll = false;
65 }
66 catch ( ExecutionException e )
67 {
68 // test throws exception
69 }
70 catch ( CancellationException e )
71 {
72 // cannot happen because not calling Future#cancel()
73 }
74 }
75 disable();
76 return wasRunningAll;
77 }
78
79 @Override
80 protected final boolean stop()
81 {
82 return stop( false );
83 }
84
85 @Override
86 protected final boolean stopNow()
87 {
88 return stop( true );
89 }
90
91 private boolean stop( boolean interrupt )
92 {
93 final boolean wasRunning = canSchedule();
94 for ( Future<?> futureResult : getFutureResults() )
95 {
96 futureResult.cancel( interrupt );
97 }
98 disable();
99 return wasRunning;
100 }
101 }