source: tmcsimulator/trunk/src/atmsdriver/model/TrafficEvent.java @ 204

package atmsdriver.model;



import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Scanner;





/**

 * Traffic Event represents some occurrence in the traffic on 

 * a highway network.  A traffic event occurs at a particular time

 * and belongs to a unique simulation incident.  The event occurs on 

 * a specified section of a given highway route.  Each event specifies

 * the level of traffic congestion by a color.  Events are comparable

 * by the time of their occurrence.

 * @author jdalbey

 */

public final class TrafficEvent implements Comparable<TrafficEvent>

{

    public final String incident;

    public final String eventTime;

    public final Date eventDate;  // for convenience

    public final int routeNumber;

    public final LoopDetector.DOTCOLOR color;

    public final Station.DIRECTION dir;

    public final double postmile;

    public final double range;

    public final String rawString;

    

    private final static SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");



    /** Create an event from a string as in this example:

     * 181 00:12:30 405 S 0.6 11.0 G

     * @param eventString

     * @return traffic event

     * @throws Scanner exception if string improperly formatted

     */

    public TrafficEvent(String eventString) throws ParseException

    {

        this.rawString = eventString;

        Scanner lineScan = new Scanner(eventString);

        this.incident = lineScan.next();

        this.eventTime = lineScan.next(); // time field

        // may throw parseexception

        this.eventDate = formatter.parse(eventTime);

        this.routeNumber = lineScan.nextInt();

        this.dir = Station.DIRECTION.toDirection(lineScan.next());

        this.postmile = lineScan.nextDouble();

        this.range = lineScan.nextDouble();

        this.color = LoopDetector.DOTCOLOR.toDotColor(lineScan.next());    

    }



    @Override

    public int compareTo(TrafficEvent o)

    {

        return eventDate.compareTo(o.eventDate);

    }

    

    @Override

    public String toString()

    {

        return rawString;

    }

    @Override 

    public boolean equals(Object other)

    {

        Boolean result = false;

        if (other == null) return false;

        if ( other instanceof TrafficEvent  )

        {

          TrafficEvent that = (TrafficEvent) other;

          result = that.incident.equals(this.incident)

                  && that.eventTime.equals(this.eventTime)

                  && ((int) that.postmile) == ((int) this.postmile)

                  && that.dir == this.dir

                  && that.color == this.color;

        }

        return result;    

    }            

}