src/main/java/com/lumaserv/bgp/protocol/attribute/NextHopAttribute.java


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package com.lumaserv.bgp.protocol.attribute;

import java.net.InetAddress;
import java.net.UnknownHostException;

import lombok.NoArgsConstructor;
import lombok.Getter;
import lombok.Setter;

import java.nio.ByteBuffer;

@NoArgsConstructor
@Getter
@Setter
public class NextHopAttribute implements PathAttribute {

    byte[] address;
    InetAddress ip;

    public NextHopAttribute(byte typeCode, byte[] data) {
        this.address = new byte[data.length];
        System.arraycopy(data, 0, address, 0, address.length);
        try {
            ip = InetAddress.getByAddress(address);
        } catch (UnknownHostException ex) {
            // Ignore
        }
    }

    public byte getTypeCode() {
        return 3;
    }

    public void build(ByteBuffer b) {
        b.put(address);
    }

    public String toString() {
        if (ip != null)
            return ip.getHostAddress();
        else
            return address.toString();
    }
}