es.tid.rsvp.objects.ResvConfirmIPv4 Maven / Gradle / Ivy

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package es.tid.rsvp.objects;

import java.net.Inet4Address;
import java.net.UnknownHostException;

/*
 * 

RFC 2205                          RSVP                    September 1997


   A.14 Resv_CONFIRM Class

      RESV_CONFIRM class = 15.

      o    IPv4 RESV_CONFIRM object: Class = 15, C-Type = 1

           +-------------+-------------+-------------+-------------+
           |            IPv4 Receiver Address (4 bytes)            |
           +-------------+-------------+-------------+-------------+


      o    IPv6 RESV_CONFIRM object: Class = 15, C-Type = 2

           +-------------+-------------+-------------+-------------+
           |                                                       |
           +                                                       +
           |                                                       |
           +            IPv6 Receiver Address (16 bytes)           +
           |                                                       |
           +                                                       +
           |                                                       |
           +-------------+-------------+-------------+-------------+


 * 
 */

public class ResvConfirmIPv4 extends ResvConfirm{

	protected Inet4Address receiverAddress;
	
	public ResvConfirmIPv4(){
		
		classNum = 15;
		cType = 1;
	
	
	}
	
public ResvConfirmIPv4(byte[] bytes, int offset){
	super(bytes, offset);
	this.decode();
}
	

	/*
           +-------------+-------------+-------------+-------------+
           |            IPv4 Receiver Address (4 bytes)            |
           +-------------+-------------+-------------+-------------+
	 */
	
	
	@Override
	public void encode() {
		length = 8;
		bytes = new byte[length];
		encodeHeader();
		
		byte[] addr = receiverAddress.getAddress();
		
		System.arraycopy(addr,0, getBytes(), 4, addr.length);
	}

	
	public void decode() {
		 int offset=0;
		byte[] receivedAddress = new byte[4];
		System.arraycopy(bytes,offset+4,receivedAddress,0,4);
		try{
			receiverAddress = (Inet4Address) Inet4Address.getByAddress(receivedAddress);
		}catch(UnknownHostException e){
			// FIXME: Poner logs con respecto a excepcion
		}
		
	}


	public Inet4Address getReceiverAddress() {
		return receiverAddress;
	}

	public void setReceiverAddress(Inet4Address receiverAddress) {
		this.receiverAddress = receiverAddress;
	}


	
	
}