1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.ehcache.util;
18
19 import java.util.concurrent.ThreadFactory;
20 import java.util.concurrent.atomic.AtomicInteger;
21
22 /***
23 * A {@link ThreadFactory} that sets names to the threads created by this factory. Threads created by this factory
24 * will take names in the form of the string <code>namePrefix + " thread-" + threadNum</code> where <tt>threadNum</tt> is the
25 * count of threads created by this type of factory.
26 *
27 * @author <a href="mailto:asanoujam@terracottatech.com">Abhishek Sanoujam</a>
28 *
29 */
30 public class NamedThreadFactory implements ThreadFactory {
31
32 private static AtomicInteger threadNumber = new AtomicInteger(1);
33 private final String namePrefix;
34
35 /***
36 * Constructor accepting the prefix of the threads that will be created by this {@link ThreadFactory}
37 *
38 * @param namePrefix
39 * Prefix for names of threads
40 */
41 public NamedThreadFactory(String namePrefix) {
42 this.namePrefix = namePrefix;
43 }
44
45 /***
46 * Returns a new thread using a name as specified by this factory {@inheritDoc}
47 */
48 public Thread newThread(Runnable runnable) {
49 return new Thread(runnable, namePrefix + " thread-" + threadNumber.getAndIncrement());
50 }
51
52 }