DenmPort.java

/**
 *  DENM port implementation
 * 
 *  @author     ETSI / STF424
 *  @version    $URL$
 *              $Id$
 *
 */
package org.etsi.its.adapter.ports;

import java.util.HashMap;
import java.util.Map;

import org.etsi.common.ByteHelper;
import org.etsi.its.adapter.layers.BtpLayer;
import org.etsi.its.adapter.layers.GnLayer;

/**
 *  DENM port implementation
 */
public class DenmPort extends ProtocolPort {

    /**
     * Constructor
     * @param   portName        Name of the port
     * @param   componentName   Name of the component owning this port instance
     * @param   lowerStackDesc  Description of the port's lower stack in the form "Layer/Layer/Layer/..."
     * @param  linkLayerAddress    Link-layer address to be used by this port as source address (null if not applicable)
     */
	public DenmPort(String portName, String componentName, String lowerStackDesc, String linkLayerAddress) {
		super(portName, componentName, lowerStackDesc, linkLayerAddress);
	}
	
    /* (non-Javadoc)
     * @see org.etsi.its.adapter.ports.ProtocolPort#receive(byte[], java.util.Map)
     */
    @Override
	public void receive(byte[] message, Map<String, Object> lowerInfo) {

        // Encode with CAM indication header
        byte[] msgInd = ByteHelper.concat(
        		message,        		
        		(byte[])lowerInfo.get(GnLayer.GN_NEXTHEADER),
        		(byte[])lowerInfo.get(GnLayer.GN_TYPE),
        		(byte[])lowerInfo.get(GnLayer.GN_SUBTYPE),
        		(byte[])lowerInfo.get(GnLayer.GN_LIFETIME),
        		(byte[])lowerInfo.get(GnLayer.GN_TRAFFICCLASS),
        		(byte[])lowerInfo.get(BtpLayer.BTP_DSTPORT),
        		(byte[])lowerInfo.get(BtpLayer.BTP_DSTPORTINFO));
        super.receive(msgInd, lowerInfo);
	}
    
	/* (non-Javadoc)
     * @see org.etsi.its.adapter.ports.IPort#send(byte[])
     */
    @Override
    public boolean send(byte[] message) {
    
        HashMap<String, Object> params = new HashMap<String, Object>();
        params.put(BtpLayer.BTP_TYPE, BtpLayer.TYPE_B);
        params.put(BtpLayer.BTP_DSTPORT, 2002);
        params.put(BtpLayer.BTP_SRCPORT, 500);
        params.put(GnLayer.GN_TYPE, GnLayer.HT_TSB);
        params.put(GnLayer.GN_SUBTYPE, GnLayer.HST_SINGLEHOP);
        params.put(GnLayer.GN_NEXTHEADER, "BTP-B");
        
//        params.put(GnLayer.GN_TYPE, GnLayer.HT_GEOBROADCAST);
//        params.put(GnLayer.GN_SUBTYPE, GnLayer.HST_ELIPSE);
//        params.put(GnLayer.GN_LATITUDE, 517860110L);
//        params.put(GnLayer.GN_LONGITUDE, 60152120L);
//        params.put(GnLayer.GN_DISTANCEA, 200);
//        params.put(GnLayer.GN_DISTANCEB, 200);
//        params.put(GnLayer.GN_ANGLE, 0);
//        
        return send(message, params);
    }
}