Source code analysis of leader election-startLeaderElection

Seeing this method, do you feel the light in your eyes? That’s right, after such a long period of preparation, I finally entered the leader election method.

synchronized public void startLeaderElection() { 
	try { 
		//构建一个票据，用于投票 
		currentVote = new Vote(myid, 
		getLastLoggedZxid(), getCurrentEpoch()); 
	} catch(IOException e) { 
		RuntimeException re = new 
		RuntimeException(e.getMessage()); 
		re.setStackTrace(e.getStackTrace()); 
		throw re; 
	} 
	//这个getView返回的就是在配置文件中配置的server.myid=ip:port:port。view在哪里解析的呢？ 
	for (QuorumServer p : getView().values()) { 
		if (p.id == myid) {//获得当前zkserver myid对应的ip地址 
			myQuorumAddr = p.addr; 
			break; 
		} 
	} 
	if (myQuorumAddr == null) { 
		throw new RuntimeException("My id " + myid + " not in the peer list"); 
	} 
	//根据electionType匹配对应的选举算法,electionType默认值为3.可以在配置文件中动态配置 
	if (electionType == 0) { 
		try { 
			udpSocket = new 
			DatagramSocket(myQuorumAddr.getPort()); 
			responder = new ResponderThread(); 
			responder.start(); 
		} catch (SocketException e) { 
			throw new RuntimeException(e); 
		} 
	} 
	this.electionAlg = createElectionAlgorithm(electionType); 
}