GoogleMapsDemo.java

package cas2xb3.greenlight;
import java.awt.BorderLayout;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

import javax.swing.JFrame;
import javax.swing.WindowConstants;

import org.omg.CORBA.portable.InputStream;

import com.teamdev.jxbrowser.chromium.Browser;
import com.teamdev.jxbrowser.chromium.swing.BrowserView;

public class GoogleMapsSample {
	private static String location;
	private static String destination;
	private static String waypoint;
	private static String oldFileName;
	private static String tmpFileName;
	private static BufferedWriter bw;
	private static BufferedReader br;
	private static BufferedReader br2;
	private static BufferedWriter bw2;
	private static String line;
	private static String line2;
	private static Scanner sc;
	private static List<String> list;
	private static List<String> templist;
	
	public static List modifylist(List list){
		
		List<String> templist = new ArrayList();
		
		if (list.size() > 23){

		int index = (list.size() / 23) + 1;
		
		int remove = list.size() - list.size() / index;
				
		int count = 0;
		
		count = 23 - remove;

		for (int i = 0; i < list.size() - 1; i = i + index){
			
			
			templist.add((String) list.get(i));
			
			if ( count != 0){
				
				//templist.add((String) list.get(i + 1));
				
				//count--;
				
			}
			
		}
		}else{
			templist = list;
		}
		return templist;

	}
	
	public static void rank(List<Collision> list){
		
		List<Collision> dist = new ArrayList();
		
		for (int i = 0; i < list.size() - 1 ; i++){
			
			dist(list.get(i).getLat(),list.get(i).getLng(),list.get(i + 1).getLat(),list.get(i + 1).getLng());
			
		}
		
		List rank = dist;
		
		Collections.sort(rank);
		
		for (int i = 0; i < list.size() ; i++){
			
		}
		
	}
	
	
	public static void userinput(List Inputlist) throws IOException{
		
		list = Inputlist;
		
		Collections.reverse(list);
		
		sc = new Scanner(System.in);

		location = GreenLight.origin;

		destination = GreenLight.destination;

		oldFileName = "data/maps.txt";
		tmpFileName = "data/tmp_maps.txt";

		br = null;
		bw = null;

		br = new BufferedReader(new FileReader(oldFileName));
		bw = new BufferedWriter(new FileWriter(tmpFileName));
		while ((line = br.readLine()) != null) {
			for(int i = 0; i < list.size() ; i++){
				if (line.contains("var waypts = [];")){
					line = line.replace("var waypts = [];",		
							"var waypts = [];" + "\n" + "            waypts.push({" + "\n"							
									+ "                 location: '" + list.get(i) + "'," + "\n"									
									+ "                 stopover: true" + "\n" + "            });");
				}				
			}
			if (line.contains("origin:")){
				line = line.replace("origin:", "origin: '" + location + "',");
			}
			if (line.contains("destination:")){
				line = line.replace("destination:", "destination: '" + destination + "',");
			}
			
			bw.write(line + "\n");
		}
		

		br.close();
		bw.close();

		File oldFile = new File(oldFileName);
		oldFile.delete();

		// And rename tmp file's name to old file name
		File newFile = new File(tmpFileName);
		newFile.renameTo(oldFile);

		// Set text file back to original
		   
	}
	
	public static void cleanup() throws IOException{
		Collections.reverse(list);
		
		PrintWriter writer = new PrintWriter("data/maps.txt");
		writer.print("");
		writer.close();

		FileInputStream input = null;
		OutputStream output = null;

		try {

			/* FileInputStream to read streams */
			input = new FileInputStream(new File("data/mapsref.txt"));

			/* FileOutputStream to write streams */
			output = new FileOutputStream(new File("data/maps.txt"));

			byte[] bytes = new byte[1024];
			int bytesRead;

			while ((bytesRead = input.read(bytes)) > 0) {
				output.write(bytes, 0, bytesRead);
			}
			
		}

		finally {
			input.close();
			output.close();
		}

	}

	public static String genHtml() throws IOException {

		BufferedReader br = new BufferedReader(new FileReader("data/maps.txt"));

		try {
			StringBuilder sb = new StringBuilder();
			String line = br.readLine();

			while (line != null) {
				sb.append(line);
				sb.append("\n");
				line = br.readLine();
			}
			return sb.toString();

		} finally {
			br.close();
		}

	}
	
	public static double dist(double lat1, double lng1, double lat2, double lng2){
		//radius of earth in meters
		double r = 6371000;

		double dLat = Math.toRadians(lat1-lat2);
		double dLng = Math.toRadians(lng1-lng2);
		
		double t = Math.sin(dLat/2) * Math.sin(dLat/2) +
				   Math.cos(Math.toRadians((lat2))) * Math.cos(Math.toRadians(lat1)) * 
				   Math.sin(dLng/2) * Math.sin(dLng/2); 
		
		return r * (2 * Math.atan2(Math.sqrt(t), Math.sqrt(1-t)));
		
	}

}