1 package org.apache.commons.jcs3.utils.threadpool;
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.ThreadFactory;
23
24 /**
25 * Allows us to set the daemon status on the threads.
26 */
27 public class DaemonThreadFactory
28 implements ThreadFactory
29 {
30 private final String prefix;
31 private final static boolean THREAD_IS_DAEMON = true;
32 private int threadPriority = Thread.NORM_PRIORITY;
33
34 /**
35 * Constructor
36 *
37 * @param prefix thread name prefix
38 */
39 public DaemonThreadFactory(final String prefix)
40 {
41 this(prefix, Thread.NORM_PRIORITY);
42 }
43
44 /**
45 * Constructor
46 *
47 * @param prefix thread name prefix
48 * @param threadPriority set thread priority
49 */
50 public DaemonThreadFactory(final String prefix, final int threadPriority)
51 {
52 this.prefix = prefix;
53 this.threadPriority = threadPriority;
54 }
55
56 /**
57 * Sets the thread to daemon.
58 * <p>
59 * @param runner
60 * @return a daemon thread
61 */
62 @Override
63 public Thread newThread( final Runnable runner )
64 {
65 final Thread t = new Thread( runner );
66 final String oldName = t.getName();
67 t.setName( prefix + oldName );
68 t.setDaemon(THREAD_IS_DAEMON);
69 t.setPriority(threadPriority);
70 return t;
71 }
72 }