com.github.xiaoyuge5201.thread.Executor Maven / Gradle / Ivy
package com.github.xiaoyuge5201.thread;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.*;
/**
* 线程池工具
* @author liushiquan,luxiaolei
*/
public class Executor {
private static Logger logger = LoggerFactory.getLogger(Executor.class);
private static ExecutorService executor = Executors.newCachedThreadPool();
/**
* 直接在公共线程池中执行线程
* @param runnable 可运行对象
*/
public static void execute(Runnable runnable) {
try {
executor.execute(runnable);
} catch (Exception e) {
logger.error("Exception when running task: " + e, e);
}
}
/**
* 重启公共线程池
*/
public static void restart(){
executor.shutdownNow();
executor = Executors.newCachedThreadPool();
}
/**
* 新建一个线程池
* @param threadSize 同时执行的线程数大小
* @return ExecutorService
*/
public static ExecutorService newExecutor(int threadSize){
return Executors.newFixedThreadPool(threadSize);
}
/**
* 获得一个新的线程池
* @return ExecutorService
*/
public static ExecutorService newExecutor(){
return Executors.newCachedThreadPool();
}
/**
* 执行异步方法
* @param runnable 需要执行的方法体
* @return 执行的方法体
*/
public static BaseRunnable excAsync(final BaseRunnable runnable, boolean isDeamon){
Thread thread = new Thread(){
@Override
public void run() {
runnable.run();
}
};
thread.setDaemon(isDeamon);
thread.start();
return runnable;
}
/**
* 执行有返回值的异步方法
* Future代表一个异步执行的操作，通过get()方法可以获得操作的结果，如果异步操作还没有完成，则，get()会使当前线程阻塞
* @return Future
*/
public static Future execAsync(Callable task){
return executor.submit(task);
}
/**
* 新建一个CompletionService，调用其submit方法可以异步执行多个任务，最后调用take方法按照完成的顺序获得其结果。，若未完成，则会阻塞
* @return CompletionService
*/
public static CompletionService newCompletionService(){
return new ExecutorCompletionService(executor);
}
/**
* 新建一个CompletionService，调用其submit方法可以异步执行多个任务，最后调用take方法按照完成的顺序获得其结果。，若未完成，则会阻塞
* @return CompletionService
*/
public static CompletionService newCompletionService(ExecutorService executor){
return new ExecutorCompletionService(executor);
}
}