source: tmcsimulator/trunk/src/atmsdriver/model/FEPLine.java @ 186

package atmsdriver.model;



import java.util.ArrayList;

import java.util.List;

import org.w3c.dom.Document;

import org.w3c.dom.Element;



/**

 * An FEPLine is a simulated line of communication from the FEP to

 * Stations in the highways network.

 *

 * An FEPLine contains static line meta data and a list of Stations. A

 * single FEPLine contains multiple Stations.

 *

 * @author John A. Torres

 * @version 09/10/2017

 */

final public class FEPLine

{

    /* Static FEPLine meta data */

    final public int lineNum;

    final public List<Station> stations;

    final private int count;



    /**

     * Constructs an FEPLine from given line number, list of stations, and count.

     * 

     * @param lineNum

     * @param stations

     * @param count 

     */

    FEPLine(int lineNum, ArrayList<Station> stations, int count)

    {

        this.lineNum = lineNum;

        this.stations = stations;

        this.count = count;

    }

    

    /** Returns a string of highways data. If MetaDataOnly is true, you get a full

     *  dump of the highways meta data, which does not include dynamic loop values,

     *  and does include the string location names. If MetaDataOnly is false,

     *  dynamic loop values are included, and unnecessary information like string

     *  location values are included.

     * 

     *  The FEPSimulator takes in the toCondensedFormat() output, with a MetaDataOnly

     *  value of false, over the socket.

     * 

     *  The MetaDataOnly flag should be used to get a full dump of the highways

     *  information. This was used to get the highways_fullmap.txt output.

     * 

     * @param MetaDataOnly Whether you want meta data, or a full dump for FEPSim

     * @return String, highways data in condensed format

     */

    public String toCondensedFormat(boolean MetaDataOnly)

    {

        StringBuilder build = new StringBuilder();

        build.append(Integer.toString(this.lineNum));

        build.append(" ");

        build.append(Integer.toString(this.count));

        build.append(" ");

        build.append(Integer.toString(this.stations.size()));

        build.append("\n");

        for(Station station : stations)

        {

            build.append(station.toCondensedFormat(MetaDataOnly));

        }

        return build.toString();

    }

    

    /**

     * Returns the FEPLine data in XMLFormat

     * 

     * @param currElem The current XML <Line> element

     */

    public void toXML(Element currElem)

    {

        Document theDoc = currElem.getOwnerDocument();



        Element lineElement = theDoc.createElement(XML_TAGS.LINE.tag);

        currElem.appendChild(lineElement);



        Element lineNumElement = theDoc.createElement(XML_TAGS.LINE_NUM.tag);

        lineNumElement.appendChild(theDoc.createTextNode(String.valueOf(this.lineNum)));

        lineElement.appendChild(lineNumElement);



        Element countElement = theDoc.createElement(XML_TAGS.COUNT.tag);

        countElement.appendChild(theDoc.createTextNode(String.valueOf(this.count)));

        lineElement.appendChild(countElement);



        Element stationsElement = theDoc.createElement(XML_TAGS.STATIONS.tag);

        lineElement.appendChild(stationsElement);

        for (Station station : stations)

        {

            station.toXML(stationsElement);

        }

    }

    

    /**

     * XML Tags used in toXML()

     */

    private static enum XML_TAGS

    {



        LINE("Line"),

        LINE_NUM("Line_Num"),

        STATIONS("Stations"),

        COUNT("Count");



        String tag;



        private XML_TAGS(String n)

        {

            tag = n;

        }

    }

}