source: tmcsimulator/trunk/src/atmsdriver/GoogleMapAnimator.java @ 248

package atmsdriver;



import atmsdriver.model.Highways;

import atmsdriver.model.TrafficEvent;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.PrintWriter;

import java.rmi.RemoteException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.LinkedList;

import java.util.List;

import java.util.Map;

import java.util.Properties;

import java.util.Scanner;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.swing.JFrame;

import tmcsim.cadsimulator.managers.TrafficModelManager;

import tmcsim.common.SimulationException;



/**

 * Read and process all Traffic Events in a file and output 

 * a snapshot of the highway model after each event to a json file. 

 * This file can be read by Google maps. 

 * This application is used by Traffic Event authors to assist

 * in verifying the correctness of their data file.

 * @author jdalbey

 */

public class GoogleMapAnimator extends javax.swing.JPanel

{

    /**

     * Error logger.

     */

    private final static Logger logger = Logger.getLogger("mapanimator");



    /**

     * Highways in traffic network

     */

    final private Highways highways;



    /**

     * LinkedList of batch events

     */

    private final LinkedList<TrafficEvent> eventQueue;

    /**

     * Map of incidents to events

     */

    private Map<String, List<TrafficEvent>> incidents;

    /**

     * Highway history

     */

    private List<String> history;

    /**

     * name of events file obtained from properties

     */

    private String events_file = ""; 

    /**

     * Creates the JPanel and builds the highways and events. 

     */

    public GoogleMapAnimator() throws RemoteException, SimulationException

    {

        initComponents();



        // Initialize the highway model

        incidents = new HashMap<String, List<TrafficEvent>>();

        highways = new Highways(

                "config/vds_data/highways_fullmap.txt",

                // following aren't used by this application

                "localhost", 8080);

        final String CONFIG_FILE_NAME = "traffic_model_config.properties";

        String propertiesFile = "config" + System.getProperty("file.separator") 

                 + CONFIG_FILE_NAME;

        Properties props = TrafficModelManager.loadProperties(propertiesFile);

        events_file = props.getProperty("Events_File");

        FileInputStream fis = null;

        try

        {

            fis = new FileInputStream(events_file);

        } catch (FileNotFoundException ex)

        {

            Logger.getLogger(TrafficModelManager.class.getName()).log(Level.SEVERE, null, 

                    "Missing Traffic Events file " + events_file);

            System.exit(-1);

        }

        Scanner fileScanner = new Scanner(fis);        

        // Read all lines from the file of events and put in a queue

        eventQueue = TrafficModelManager.readBatchFile(fileScanner);

    }

    /** Load the traffic events into a history buffer */

    public void load()

    {

        txtDisplay.setText("Loading traffic events from: " + events_file);

        history = new ArrayList<String>();

        // If we have any events left to process

        while (!eventQueue.isEmpty())

        {

            // Get next event

            TrafficEvent nextEvent = eventQueue.peek();

            System.out.println(nextEvent.eventTime);

            // apply colorization to highways

            highways.applyColorToHighwayStretch(nextEvent.routeNumber, nextEvent.dir,

                    nextEvent.postmile, nextEvent.range, nextEvent.color);

            //history.add(highways.toString()+"\n"+nextEvent.eventTime);

            

            // Output the highway model 

            String geojson = highways.toJson();

            //System.out.println(geojson); // diagnostic

            PrintWriter out;

            try

            {

                out = new PrintWriter("highways.json");

                out.print(geojson);

                out.close();

            }

            catch (FileNotFoundException ex)

            {

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

            }

            

            // Sleep 10 sec for the javascript page to load the file

            try

            {

                Thread.sleep(10000); // pause 10 seconds

            }

            catch (InterruptedException ex)

            {

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

            }

            // Remove this event from the queue, we're done with it.

            eventQueue.remove();

        }

        scrollBar.setMaximum(history.size());

        // display the first item from the history

        txtDisplay.setText(history.get(0));

    }

    /**

     * This method is called from within the constructor to initialize the form.

     * WARNING: Do NOT modify this code. The content of this method is always

     * regenerated by the Form Editor.

     */

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents

    private void initComponents()

    {



        scrollBar = new javax.swing.JScrollBar();

        jScrollPane1 = new javax.swing.JScrollPane();

        txtDisplay = new javax.swing.JTextArea();



        setPreferredSize(new java.awt.Dimension(151, 92));



        scrollBar.addAdjustmentListener(new java.awt.event.AdjustmentListener()

        {

            public void adjustmentValueChanged(java.awt.event.AdjustmentEvent evt)

            {

                scrollbarValueChanged(evt);

            }

        });



        txtDisplay.setColumns(20);

        txtDisplay.setFont(new java.awt.Font("Courier New", 0, 15)); // NOI18N

        txtDisplay.setRows(5);

        jScrollPane1.setViewportView(txtDisplay);



        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);

        this.setLayout(layout);

        layout.setHorizontalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

                .addComponent(scrollBar, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)

                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 421, Short.MAX_VALUE))

        );

        layout.setVerticalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addComponent(scrollBar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

        );

    }// </editor-fold>//GEN-END:initComponents



    private void scrollbarValueChanged(java.awt.event.AdjustmentEvent evt)//GEN-FIRST:event_scrollbarValueChanged

    {//GEN-HEADEREND:event_scrollbarValueChanged

        // when the scroll bar is moved show the corresponding snapshot from history

        txtDisplay.setText(history.get(evt.getValue()) );

        repaint();

    }//GEN-LAST:event_scrollbarValueChanged



    /** Entry point for the application.  Builds a surrounding JFrame and 

     * runs the application.

     * @param args

     * @throws RemoteException

     * @throws SimulationException 

     */

    public static void main(String[] args) throws RemoteException, SimulationException

    {

        JFrame frame = new JFrame("Google Map Animator");

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setSize(1050,450);

        GoogleMapAnimator display = new GoogleMapAnimator();

        frame.add(display);

        frame.setVisible(true);

        display.load();

    }



    // Variables declaration - do not modify//GEN-BEGIN:variables

    private javax.swing.JScrollPane jScrollPane1;

    private javax.swing.JScrollBar scrollBar;

    private javax.swing.JTextArea txtDisplay;

    // End of variables declaration//GEN-END:variables

}