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Hutool是一个小而全的Java工具类库,通过静态方法封装,降低相关API的学习成本,提高工作效率,使Java拥有函数式语言般的优雅,让Java语言也可以“甜甜的”。
package cn.hutool.core.thread;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
import cn.hutool.core.util.StrUtil;
/**
* 线程创建工厂类,此工厂可选配置:
*
*
* 1. 自定义线程命名前缀
* 2. 自定义是否守护线程
*
*
* @author looly
* @since 4.0.0
*/
public class NamedThreadFactory implements ThreadFactory {
/** 命名前缀 */
private final String prefix;
/** 线程组 */
private final ThreadGroup group;
/** 线程组 */
private final AtomicInteger threadNumber = new AtomicInteger(1);
/** 是否守护线程 */
private final boolean isDaemon;
/** 无法捕获的异常统一处理 */
private final UncaughtExceptionHandler handler;
/**
* 构造
*
* @param prefix 线程名前缀
* @param isDaemon 是否守护线程
*/
public NamedThreadFactory(String prefix, boolean isDaemon) {
this(prefix, null, isDaemon);
}
/**
* 构造
*
* @param prefix 线程名前缀
* @param threadGroup 线程组,可以为null
* @param isDaemon 是否守护线程
*/
public NamedThreadFactory(String prefix, ThreadGroup threadGroup, boolean isDaemon) {
this(prefix, threadGroup, isDaemon, null);
}
/**
* 构造
*
* @param prefix 线程名前缀
* @param threadGroup 线程组,可以为null
* @param isDaemon 是否守护线程
* @param handler 未捕获异常处理
*/
public NamedThreadFactory(String prefix, ThreadGroup threadGroup, boolean isDaemon, UncaughtExceptionHandler handler) {
this.prefix = StrUtil.isBlank(prefix) ? "Hutool" : prefix;
if (null == threadGroup) {
threadGroup = ThreadUtil.currentThreadGroup();
}
this.group = threadGroup;
this.isDaemon = isDaemon;
this.handler = handler;
}
@Override
public Thread newThread(Runnable r) {
final Thread t = new Thread(this.group, r, StrUtil.format("{}{}", prefix, threadNumber.getAndIncrement()));
//守护线程
if (false == t.isDaemon()) {
if (isDaemon) {
// 原线程为非守护则设置为守护
t.setDaemon(true);
}
} else if (false == isDaemon) {
// 原线程为守护则还原为非守护
t.setDaemon(false);
}
//异常处理
if(null != this.handler) {
t.setUncaughtExceptionHandler(handler);
}
//优先级
if (Thread.NORM_PRIORITY != t.getPriority()) {
// 标准优先级
t.setPriority(Thread.NORM_PRIORITY);
}
return t;
}
}
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