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 org.apache.maven.surefire.report.ConsoleStream;
23
24 import java.util.Queue;
25 import java.util.concurrent.ConcurrentLinkedQueue;
26
27 /**
28 * The sequentially executing strategy in private package.
29 *
30 * @author Tibor Digana (tibor17)
31 * @see SchedulingStrategy
32 * @since 2.16
33 */
34 final class InvokerStrategy
35 extends SchedulingStrategy
36 {
37
38 private final Queue<Thread> activeThreads = new ConcurrentLinkedQueue<Thread>();
39
40 protected InvokerStrategy( ConsoleStream logger )
41 {
42 super( logger );
43 }
44
45 @Override
46 public void schedule( Runnable task )
47 {
48 if ( canSchedule() )
49 {
50 final Thread currentThread = Thread.currentThread();
51 try
52 {
53 activeThreads.add( currentThread );
54 task.run();
55 }
56 finally
57 {
58 activeThreads.remove( currentThread );
59 }
60 }
61 }
62
63 @Override
64 protected boolean stop()
65 {
66 return disable();
67 }
68
69 @Override
70 protected boolean stopNow()
71 {
72 final boolean stopped = disable();
73
74 for ( Thread activeThread = activeThreads.poll(); activeThread != null; activeThread = activeThreads.poll() )
75 {
76 activeThread.interrupt();
77 }
78 return stopped;
79 }
80
81 @Override
82 public boolean hasSharedThreadPool()
83 {
84 return false;
85 }
86
87 @Override
88 public boolean finished()
89 throws InterruptedException
90 {
91 return disable();
92 }
93
94 public boolean destroy()
95 {
96 return stop();
97 }
98 }