| /* |
| * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.jmx.event; |
| |
| import com.sun.jmx.remote.util.ClassLogger; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| public class DaemonThreadFactory implements ThreadFactory { |
| public DaemonThreadFactory(String nameTemplate) { |
| this(nameTemplate, null); |
| } |
| |
| // nameTemplate should be a format with %d in it, which will be replaced |
| // by a sequence number of threads created by this factory. |
| public DaemonThreadFactory(String nameTemplate, ThreadGroup threadGroup) { |
| if (logger.debugOn()) { |
| logger.debug("DaemonThreadFactory", |
| "Construct a new daemon factory: "+nameTemplate); |
| } |
| |
| if (threadGroup == null) { |
| SecurityManager s = System.getSecurityManager(); |
| threadGroup = (s != null) ? s.getThreadGroup() : |
| Thread.currentThread().getThreadGroup(); |
| } |
| |
| this.nameTemplate = nameTemplate; |
| this.threadGroup = threadGroup; |
| } |
| |
| public Thread newThread(Runnable r) { |
| final String name = |
| String.format(nameTemplate, threadNumber.getAndIncrement()); |
| Thread t = new Thread(threadGroup, r, name, 0); |
| t.setDaemon(true); |
| if (t.getPriority() != Thread.NORM_PRIORITY) |
| t.setPriority(Thread.NORM_PRIORITY); |
| |
| if (logger.debugOn()) { |
| logger.debug("newThread", |
| "Create a new daemon thread with the name "+t.getName()); |
| } |
| |
| return t; |
| } |
| |
| private final String nameTemplate; |
| private final ThreadGroup threadGroup; |
| private final AtomicInteger threadNumber = new AtomicInteger(1); |
| |
| private static final ClassLogger logger = |
| new ClassLogger("com.sun.jmx.event", "DaemonThreadFactory"); |
| } |