source: proiecte/ptvs/src/vnsim/map/utils/ParsingUtil.java @ 31

/************************************************************************************
 * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University
 * All rights reserved.
 * Refer to LICENSE for terms and conditions of use.
 ***********************************************************************************/
package vnsim.map.utils;


import java.util.*;

import vnsim.map.object.*;


/**
 * @author Victor-Radu
 */

public class ParsingUtil {

        public static Road parseRoad(byte[] buffer){
        //parses a record in RT1 format into a road object
                Road r = new Road();
                Point p;
                
                if (buffer[19] != ' ' && buffer[55] == 'A'){
                        // it is a road with non-empty name field
                        // we care only obut roads
                        try{
                                r.setId( Long.parseLong(new String(buffer, 5, 10).trim()) );
                        }catch (NumberFormatException e){
                                e.printStackTrace();
                                return null;
                        }
                        r.setName( new String(buffer, 19, 30) );
                    r.setType( new String(buffer, 49, 4));
                    r.setDirectionPrefix( (new String(buffer, 17, 2)).getBytes());
                    r.setDirectionSuffix( (new String(buffer, 53, 2)).getBytes());
                    r.setRoadinfo( (new String(buffer, 55, 3)).getBytes());
                    //start and end point 
                    p = parsePoint(new String(buffer, 190, 19).getBytes());
                    if (p!= null)
                                r.points.add(p);
                    else return null;
                    p = parsePoint(new String(buffer, 209, 19).getBytes());
                    if (p!= null)
                                r.points.add(p);
                    else return null;
                    return r;
                }
                return null;
        }
        
        public static Point parsePoint(byte[] buffer){
        //parses a buffer into a point (longitude 10 digits, latitude 9 digits)
        // input example: buffer= " -74407665+40526477"  (longitude, latitude)
                try{
                        String s = new String(buffer);
                        byte[] buf = s.replace('+', ' ').getBytes();
                        Point p = new Point((double)( Long.parseLong(new String(buf, 0, 10).trim())) * 1e-6f,
                                        (double)( Long.parseLong(new String(buf, 10, 9).trim())) * 1e-6f);
                        return p;
                }catch (NumberFormatException e){
                        e.printStackTrace();
                        return null;
                }
        }
}