1 /* 2 * Copyright (C) 2008 Google 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 com.google.common.util.concurrent; 18 19 import com.google.common.base.Preconditions; 20 21 import java.util.concurrent.ThreadFactory; 22 23 /** 24 * Wraps another {@link ThreadFactory}, making all new threads daemon threads. 25 * 26 * @author Charles Fry 27 * @author Harendra Verma 28 * @since 2009.09.15 <b>tentative</b> 29 */ 30 public class DaemonThreadFactory implements ThreadFactory { 31 32 private final ThreadFactory factory; 33 DaemonThreadFactory(ThreadFactory factory)34 public DaemonThreadFactory(ThreadFactory factory) { 35 Preconditions.checkNotNull(factory); 36 this.factory = factory; 37 } 38 newThread(Runnable r)39 public Thread newThread(Runnable r) { 40 Thread t = factory.newThread(r); 41 t.setDaemon(true); 42 return t; 43 } 44 } 45