ExchangerProducer.java Source code

Introduction

Here is the source code for ExchangerProducer.java

Source

import java.util.ArrayList;
import java.util.concurrent.Exchanger;

class ExchangerProducer extends Thread {
    private Exchanger<ArrayList<Integer>> exchanger;
    private ArrayList<Integer> buffer = new ArrayList<Integer>();

    public ExchangerProducer(Exchanger<ArrayList<Integer>> exchanger) {
        this.exchanger = exchanger;
    }

    public void run() {
        while (true) {
            try {
                System.out.println("Producer.");
                Thread.sleep(1000);
                fillBuffer();
                System.out.println("Producer has produced and waiting:" + buffer);
                buffer = exchanger.exchange(buffer);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public void fillBuffer() {
        for (int i = 0; i <= 3; i++) {
            buffer.add(i);
        }
    }
}

class ExchangerConsumer extends Thread {
    private Exchanger<ArrayList<Integer>> exchanger;
    private ArrayList<Integer> buffer = new ArrayList<Integer>();

    public ExchangerConsumer(Exchanger<ArrayList<Integer>> exchanger) {
        this.exchanger = exchanger;
    }

    public void run() {
        while (true) {
            try {
                System.out.println("Consumer.");
                buffer = exchanger.exchange(buffer);
                System.out.println("Consumer  has received:" + buffer);
                Thread.sleep(1000);
                System.out.println("eating:" + buffer);
                buffer.clear();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Exchanger<ArrayList<Integer>> exchanger = new Exchanger<>();
        ExchangerProducer producer = new ExchangerProducer(exchanger);
        ExchangerConsumer consumer = new ExchangerConsumer(exchanger);
        producer.start();
        consumer.start();
    }
}