source: tmcsimulator/branches/trunk/src/atmsdriver/NetworkLoader.java @ 84

package atmsdriver;



import atmsdriver.model.FEPLine;

import atmsdriver.model.Station;

import atmsdriver.model.LoopDetector;

import atmsdriver.model.Station.DIRECTION;

import java.io.File;

import java.io.FileNotFoundException;

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

import java.util.logging.Level;

import java.util.logging.Logger;



/** The NetworkReader loads all static data for the traffic network through

 *  network lookup files. 

 * 

 *  The public method getFEPLines() method can be used to get all the FEPLines 

  within a network. All other methods are private and are used to construct

  the FEPLines.

 

  The "LDSFile" contains Station and FEPLine information.

  ex.

   < Insert file here >

 *  The "loopFile" contains individual LoopDetector information.

 *  ex.

 *   < Insert file here > 

 *

 * @author John A. Torres

 * @version 09/10/2017

 */

public class NetworkLoader {

    // Two network config files

    private final File LDSFile;

    private final File loopFile;

    

    // The list of FEPLines

    private List<FEPLine> lines;

    

    /**

     * Constructor

     * @param LDSFile contains FEPLine and Station static data

     * @param loopFile contains individual LoopDetector static data

     */

    public NetworkLoader(File LDSFile, File loopFile)

    {

        this.LDSFile = LDSFile;

        this.loopFile = loopFile;

        this.lines = new ArrayList<>();

        constructFEPLines();

    }

    

    /**

     * Returns the list of FEPLines in the configured network

    */

    public List<FEPLine> getFEPLines()

    {

        return lines;

    }

    

    // returns a list of the line numbers found in LDSFile

    private ArrayList<Integer> getLineNums(Scanner sc)

    {

        ArrayList<Integer> lineNums = new ArrayList<>();

        

        sc.nextLine(); // skip first line

        

        while(sc.hasNext())

        {

            sc.nextInt(); // skip to line no

            Integer lineNum = sc.nextInt(); // get the line number

            

            /* If the line is new, and has not been added, add it to lineNums */

            if(!lineNums.contains(lineNum))

            {

                lineNums.add(lineNum);

            }

       

            sc.nextLine(); // skip to next line

        }

        

        sc.close();

        

        return lineNums;

    }

    

    // returns a list of station numbers for a given line

    private ArrayList<Integer> getStationNums(Integer lineNum, Scanner sc)

    {

        ArrayList<Integer> stnNums = new ArrayList<>();

        

        sc.nextLine(); // skip first line

        

        while(sc.hasNext())

        {

            Integer stnNum = sc.nextInt();

            Integer theLine = sc.nextInt();

            if(theLine.equals(lineNum))

            {

                stnNums.add(stnNum);

            }

            

            sc.nextLine();

        }

        

        sc.close();

        

        return stnNums;

    }

    

    // returns a list of loop detectors for a given station

    private ArrayList<LoopDetector> getLoops(Integer stnNum, Scanner sc)

    {

        ArrayList<LoopDetector> loops = new ArrayList<>();

        

        sc.nextLine(); // skip first line

        

        while(sc.hasNext())

        {

            sc.next(); // skip FWY

            sc.next(); // skip dir

            sc.next(); // skip postmile

            Integer ldsID = sc.nextInt(); // lds id

            sc.next(); // skip vdsID

            Integer loopID = sc.nextInt(); // loop id

            sc.next(); // skip LOC

            Integer laneNum = sc.nextInt(); // lane number

            String loopLoc = sc.next();

            if(stnNum.equals(ldsID))

            {

                LoopDetector loop = new LoopDetector(loopID, loopLoc, laneNum);

                loops.add(loop);

            }

            sc.nextLine();

        }

        

        sc.close();

        

        return loops;

    }

    

    // method called to actually build the network from config files

    private void constructFEPLines()

    {

        try {            

            // Get FEPLine IDs

            ArrayList<Integer> lineNums = getLineNums(new Scanner(LDSFile));

            

            // Create each FEPLine in the network

            for(Integer lineNum : lineNums)

            {

                // Get Station IDs for the current FEPLine

                ArrayList<Integer> stnNums = getStationNums(lineNum,

                        new Scanner(LDSFile));

                

                // Create each Station for the current FEPLine

                ArrayList<Station> stns = new ArrayList<>();

                for(Integer stnNum : stnNums)

                {

                    // Get Loops for the current Station

                    ArrayList<LoopDetector> loops =

                            getLoops(stnNum, new Scanner(loopFile));

                    

                    // Create the Station and add to list for curr FEPLine

                    Station stn =

                            createStation(stnNum, new Scanner(LDSFile), loops);

                    stns.add(stn);

                }

                

                // Now that stations are created, create the actual FEPLine and

                // and to FEPLines list

                FEPLine line = createLine(lineNum, new Scanner(LDSFile), stns);

                lines.add(line);

            }

        } catch (FileNotFoundException ex) {

            Logger.getLogger(NetworkLoader.class.getName()).log(Level.SEVERE, null, ex);

        }

    }

    

    // Creates  line

    private FEPLine createLine(int lineNum, Scanner scLine, ArrayList<Station> stns)

    {

        FEPLine line = null;

        

        scLine.nextLine();

        

        while(scLine.hasNext())

        {

            scLine.nextInt(); // skip ldsID

            int currLineNum = scLine.nextInt(); // linenum

            if(currLineNum == lineNum)

            {

                scLine.nextInt(); // skip drop

                int sch = scLine.nextInt(); // schedule

                int lineinfo = scLine.nextInt(); // lineinfo

                int sysKey = scLine.nextInt(); // sysKey

                int schSeq = scLine.nextInt(); // schSeq

                int globSeq = scLine.nextInt(); // globSeq  

                int count = scLine.nextInt(); // count

                

                line = new FEPLine(lineNum, stns, count, sch, lineinfo, sysKey, globSeq, schSeq);

                

                break;

            }

            

            scLine.nextLine();

        }

        

        scLine.close();

        

        return line;

    }

    

    // Returns the loction given the whole line from the lookup file

    private String getLocation(String line)

    {

        Scanner sc = new Scanner(line);

        sc.nextInt(); // skip lds num

        sc.nextInt(); // skip line num

        int drop = sc.nextInt(); // drop num

        sc.nextInt(); // skip schedule

        sc.nextInt(); // skip lineinfo

        sc.nextInt(); // skp systemkey

        sc.nextInt(); // skip sch_seq

        sc.nextInt(); // skip glob_seq

        sc.nextInt(); // skip count

        sc.nextInt(); // fwy

        DIRECTION dir = DIRECTION.getEnum(sc.next()); // direction

        sc.nextDouble();

        

        /** GRABS FROM CURRENT TO END OF LINE */

        sc.useDelimiter("\\z"); 

        String loc = sc.next().trim();

        sc.close();

        return loc;

    }

    

    // creates a Station

    private Station createStation(int stnNum, Scanner sc, ArrayList<LoopDetector> detectors)

    {

        Station LDS = null;

        

        sc.nextLine();

        

        while(sc.hasNext())

        {        

            String strLine = sc.nextLine();

            Scanner scLine = new Scanner(strLine);

            int ldsID = scLine.nextInt(); // get curr lds id

            if(ldsID == stnNum) // if we are on correct stn

            {

                int lineNum = scLine.nextInt(); // skip line num

                int drop = scLine.nextInt(); // drop num

                scLine.nextInt(); // skip schedule

                scLine.nextInt(); // skip lineinfo

                scLine.nextInt(); // skp systemkey

                scLine.nextInt(); // skip sch_seq

                scLine.nextInt(); // skip glob_seq

                scLine.nextInt(); // skip count

                int fwy = scLine.nextInt(); // fwy

                DIRECTION dir = DIRECTION.getEnum(scLine.next()); // direction

                double postmile = scLine.nextDouble();

                String ldsName = getLocation(strLine); /************* DOESNT GRAB WHOLE???? */////

                LDS = new Station(lineNum, ldsID, drop, ldsName, detectors, fwy, dir, postmile);

                

                break;

            }

            scLine.close();

        }

        

        sc.close();

        

        return LDS;

    }

}