SDIS1819-T6G05-P2

package messages;

import chord.ChordManager;

import chord.ConnectionInfo;

import peer.Peer;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class GetPredecessorMessage extends Message {

    private ConnectionInfo ci;

    private String ipAddress;

    private int port;

    public GetPredecessorMessage(ConnectionInfo ci,String ipAddress,int port){

        this.ci = ci;

        this.ipAddress = ipAddress;

        this.port = port;

    }

    @Override

    public String getIpAddress() {

        return this.ipAddress;

    }

    @Override

    public int getPort() {

        return this.port;

    }

    @Override

    public void handleMessage() throws UnknownHostException {

        if(ChordManager.predecessor == null){

            MessageForwarder.sendMessage(new ResponsePredecessorMessage(new ConnectionInfo(null, InetAddress.getLocalHost().getHostAddress(), Peer.port), ci.getIp(), ci.getPort()));

        } else {

            MessageForwarder.sendMessage(new ResponsePredecessorMessage(new ConnectionInfo(ChordManager.getPredecessor().getHashedKey(), ChordManager.getPredecessor().getIp(), ChordManager.getPredecessor().getPort()), ci.getIp(), ci.getPort()));

        }

    }

    @Override

    public String toString() {

        return "GET_PREDECESSOR " + this.ci.getIp() + " " + this.ci.getPort();

    }

}