001package org.apache.commons.jcs.utils.threadpool; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.util.concurrent.ThreadFactory; 023 024/** 025 * Allows us to set the daemon status on the threads. 026 * <p> 027 * @author aaronsm 028 */ 029public class DaemonThreadFactory 030 implements ThreadFactory 031{ 032 private String prefix; 033 private boolean threadIsDaemon = true; 034 private int threadPriority = Thread.NORM_PRIORITY; 035 036 /** 037 * Constructor 038 * 039 * @param prefix thread name prefix 040 */ 041 public DaemonThreadFactory(String prefix) 042 { 043 this(prefix, Thread.NORM_PRIORITY); 044 } 045 046 /** 047 * Constructor 048 * 049 * @param prefix thread name prefix 050 * @param threadPriority set thread priority 051 */ 052 public DaemonThreadFactory(String prefix, int threadPriority) 053 { 054 this.prefix = prefix; 055 this.threadPriority = threadPriority; 056 } 057 058 /** 059 * Sets the thread to daemon. 060 * <p> 061 * @param runner 062 * @return a daemon thread 063 */ 064 @Override 065 public Thread newThread( Runnable runner ) 066 { 067 Thread t = new Thread( runner ); 068 String oldName = t.getName(); 069 t.setName( prefix + oldName ); 070 t.setDaemon(threadIsDaemon); 071 t.setPriority(threadPriority); 072 return t; 073 } 074}