Disruptor -->Demo1

package testForFun.demo20181210.demo02;

import com.lmax.disruptor.BlockingWaitStrategy;
import com.lmax.disruptor.EventFactory;
import com.lmax.disruptor.EventHandler;
import com.lmax.disruptor.RingBuffer;
import com.lmax.disruptor.dsl.Disruptor;
import com.lmax.disruptor.dsl.ProducerType;
import javafx.scene.Parent;

import java.util.concurrent.ThreadFactory;

/**
 * Created with IntelliJ IDEA
 * User:Ryannn
 * Date:2018/12/13
 * Time:18:34
 */
public class Test02 {
    public static void main(String[] args) throws InterruptedException {

        System.out.println("位置1");

        // 队列中的元素
        class Element {

            private int value;

            public int get(){
                return value;
            }

            public void set(int value){
                this.value= value;
            }

        }

        System.out.println("位置2");



        //1,生产者工场
        ThreadFactory threadFactory = new ThreadFactory() {
            /**
             * Constructs a new {@code Thread}.  Implementations may also initialize
             * priority, name, daemon status, {@code ThreadGroup}, etc.
             *
             * @param r a runnable to be executed by new thread instance
             * @return constructed thread, or {@code null} if the request to
             * create a thread is rejected
             */
            @Override
            public Thread newThread(Runnable r) {
                System.out.println("位置3");

                return new Thread(r,"simple Thread");

            }
        };




        //2,RingBuffer生产工厂,初始化RingBuffer的时候使用
        EventFactory factory = new EventFactory() {
            @Override
            public Element newInstance() {
                return new Element();
            }
        };

        //3,处理Event的handler
        EventHandler handler = new EventHandler() {
            @Override
            public void onEvent(Element element, long sequence, boolean endOfBatch) throws Exception {
           //     System.out.println("位置4");


                System.out.println("Element: " + element.get());
            }
        };

        //4,阻塞策略
        BlockingWaitStrategy strategy = new BlockingWaitStrategy();

        //5,指定RingBuffer的大小
        int bufferSize=16;

        //6,创建disruptor线程，采用单生产者模式
        Disruptor disruptor = new Disruptor(factory, bufferSize, threadFactory, ProducerType.SINGLE, strategy);

        //设置EventHandler
        disruptor.handleEventsWith(handler);


        //7,启动distruptor
        disruptor.start();

        RingBuffer ringBuffer = disruptor.getRingBuffer();
        for (int i = 0; i<100 ; i++) {
            //获取下一个可用的下标
            long sequence = ringBuffer.next();

            try{

         //       System.out.println("位置5"+i);

            //返回可用位置的有元素
            Element event = ringBuffer.get(sequence);
            //设置该元素的值
            event.set(i);
            }catch (Exception e){
                e.printStackTrace();
            }finally {
                ringBuffer.publish(sequence);
            //    System.out.println("位置6"+i);

            }

            Thread.sleep(10);

        }


    }
}

结果如下：

位置1
位置2
位置3
Element: 0
Element: 1
Element: 2
...