LeaderElectionStub.java

package com.techq.available.quorum;

import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LeaderElectionStub implements Election{
	private static final Logger LOG = LoggerFactory.getLogger(ElectionStub.class);
	LinkedBlockingQueue<Notification> sendqueue = new LinkedBlockingQueue<Notification>();
	LinkedBlockingQueue<Notification> recvqueue = new LinkedBlockingQueue<Notification>();
	int sleepTime = 200;
	
	
	public void init() {
		new Thread() {
			public void run() {
				try {
					while(true) {
						TimeUnit.MILLISECONDS.sleep(sleepTime);
						Notification n = sendqueue.poll(200, TimeUnit.MILLISECONDS);
						if (n != null)
							recvqueue.offer(n);
					}
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}.start();
	}
	
	
	@Override
	public long whoIsLeader() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public Vote lookForLeader() throws InterruptedException {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public Notification pollConfirm(long timeout, TimeUnit unit)
			throws InterruptedException {
		return recvqueue.poll(timeout, unit);
	}

	@Override
	public void offerACK(Notification n) {
		LOG.info("follow recv:" + n.getType());
	}

	@Override
	public void pushback(Notification n) throws InterruptedException {
		recvqueue.offer(n);
	}
	
	@Override
	public Notification pollPing(long timeout, TimeUnit unit)
			throws InterruptedException {
		Notification n = recvqueue.poll(timeout, unit);
		if (n != null) {
			LOG.info("recv type:" + n.getType() + " from sid:" + n.sid);
		}
		return n;
	}

	
	@Override
	public void offerPING(Notification n) throws InterruptedException {
		LOG.info("send type:" + n.getType() + " to sid:" + n.sid);
		sendqueue.offer(n);
	}
	
	
	@Override
	public void offerAgree(Notification n) {
		LOG.info("send type:" + n.getType() + " to sid:" + n.sid);
		sendqueue.offer(n);
	}
}