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path: root/src/net/cbaines/suma/DataManager.java
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/*
 * Southampton University Map App
 * Copyright (C) 2011  Christopher Baines
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package net.cbaines.suma;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.osmdroid.ResourceProxy;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.overlay.PathOverlay;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;

import android.content.Context;
import android.util.Log;

import com.j256.ormlite.android.apptools.OpenHelperManager;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.stmt.PreparedQuery;
import com.j256.ormlite.stmt.QueryBuilder;
import com.j256.ormlite.table.TableUtils;

public class DataManager {

	private final static String TAG = "DataManager";

	private final static String busStopUrl = "http://data.southampton.ac.uk/bus-stop/";

	private static DatabaseHelper helper;
	private static Dao<BusRoute, Integer> busRouteDao;
	private static Dao<Bus, Integer> busDao;
	private static Dao<BusStop, String> busStopDao;

	public static void loadBuildings(Context context) throws SQLException, IOException {
		DatabaseHelper helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		Dao<Building, String> buildingDao = helper.getBuildingDao();

		TableUtils.clearTable(helper.getConnectionSource(), Building.class);

		Log.i(TAG, "Begining loading buildings from csv");

		HashMap<String, GeoPoint> buildingPoints = new HashMap<String, GeoPoint>();

		InputStream inputStream = context.getAssets().open("buildings_points.csv");
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
		String strLine;
		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the definition " + def);

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Data: " + strLine);
				String[] dataBits = strLine.split(",");
				GeoPoint point = Util.csLatLongToGeoPoint(dataBits[2], dataBits[1]);
				// Log.i(TAG, "Creating building with id " + dataBits[0] +
				// " and " + point.getLatitudeE6() + " " +
				// point.getLongitudeE6());
				buildingPoints.put(dataBits[0], point);
			}

			bufferedReader.close();
		} catch (IOException e) {
			e.printStackTrace();
		}

		// Log.i(TAG, "Number of building points " + buildingPoints.size());

		inputStream = context.getAssets().open("building_estates.csv");
		bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the definition " + def);

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Data: " + strLine);
				if (strLine.startsWith("\"")) {
					String[] quoteBits = strLine.split("\"");
					// Log.i(TAG, "QuoteBits " + quoteBits[0] + " | " +
					// quoteBits[1]);
					String[] dataBits = quoteBits[2].split(",");
					// Log.i(TAG, "dataBits " + dataBits[0] + " | " +
					// dataBits[1]);

					if (buildingPoints.get(dataBits[1]) == null) {
						// Log.w(TAG, "Building " + dataBits[1] +
						// " has a null point");
						continue;
					}

					Building bdg = new Building(dataBits[1], buildingPoints.get(dataBits[1]), dataBits[3].equals("R"),
							quoteBits[0]);
					/*
					 * Polygon poly = buildingPolys.get(dataBits[1]);
					 * 
					 * if (poly != null) { bdg.outline = poly; // Log.i(TAG, "Adding building " + key + " " +
					 * bdg.point.getLatitudeE6() + " " + bdg.point.getLongitudeE6() + " " + poly); } else { // Log.i(TAG,
					 * "Adding building " + key + " " + bdg.point.getLatitudeE6() + " " + bdg.point.getLongitudeE6()); }
					 */

					// Log.i(TAG, "Creating building " + bdg.id + " " + bdg.name
					// + " " + bdg.point + " " +
					// bdg.residential + " " + bdg.outline);

					buildingDao.create(bdg);

				} else {

					String[] dataBits = strLine.split(",");

					if (buildingPoints.get(dataBits[1]) == null) {
						// Log.w(TAG, "Building " + dataBits[1] +
						// " has a null point");
						continue;
					}

					Building bdg = new Building(dataBits[1], buildingPoints.get(dataBits[1]), dataBits[3].equals("R"),
							dataBits[0]);
					/*
					 * Polygon poly = buildingPolys.get(dataBits[1]);
					 * 
					 * if (poly != null) { bdg.outline = poly; // Log.i(TAG, "Adding building " + key + " " +
					 * bdg.point.getLatitudeE6() + " " + bdg.point.getLongitudeE6() + " " + poly); } else { // Log.i(TAG,
					 * "Adding building " + key + " " + bdg.point.getLatitudeE6() + " " + bdg.point.getLongitudeE6()); }
					 */

					// Log.i(TAG, "Creating building " + bdg.id + " " + bdg.name
					// + " " + bdg.point + " " +
					// bdg.residential + " " + bdg.outline);

					buildingDao.create(bdg);

				}
			}

			bufferedReader.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		/*
		 * for (Iterator<String> iter = buildingPoints.keySet().iterator(); iter.hasNext();) { String key = iter.next();
		 * 
		 * Building bdg = new Building(key, buildingPoints.get(key), false); Polygon poly = buildingPolys.get(key);
		 * 
		 * if (poly != null) { bdg.outline = poly; // Log.i(TAG, "Adding building " + key + " " + bdg.point.getLatitudeE6() + " "
		 * + bdg.point.getLongitudeE6() + " " + poly); } else { // Log.i(TAG, "Adding building " + key + " " +
		 * bdg.point.getLatitudeE6() + " " + bdg.point.getLongitudeE6()); }
		 * 
		 * buildingDao.create(bdg); }
		 */

	}

	public static void loadBusData(Context context, boolean onlyUniLink) throws SQLException, IOException {
		DatabaseHelper helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);

		Dao<BusStop, String> busStopDao = helper.getBusStopDao();
		Dao<BusRoute, Integer> busRouteDao = helper.getBusRouteDao();
		Dao<RouteStop, Integer> routeStopsDao = helper.getRouteStopsDao();

		TableUtils.clearTable(helper.getConnectionSource(), BusStop.class);
		TableUtils.clearTable(helper.getConnectionSource(), BusRoute.class);
		TableUtils.clearTable(helper.getConnectionSource(), RouteStop.class);

		Log.i(TAG, "Loading busstops from csv");

		InputStream inputStream = context.getAssets().open("bus_stops.csv");
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
		String strLine = "";

		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the definition " +def );

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Data: " + strLine);
				String[] dataBits = strLine.split(",");

				String[] quBitsLat = dataBits[3].substring(1, dataBits[3].length() - 1).split(" ");
				String[] quBitsLng = dataBits[4].substring(1, dataBits[4].length() - 1).split(" ");

				// Log.i(TAG, "Whole " + dataBits[3] + " First bit " +
				// quBitsLat[0] + " last bit " + quBitsLat[1]);
				double lat = Double.valueOf(quBitsLat[0]) + Double.valueOf(quBitsLat[1].substring(0, quBitsLat[1].length() - 1))
						/ 60d;
				// Log.i(TAG, "Whole " + dataBits[4] + " First bit " +
				// quBitsLng[0] + " last bit " + quBitsLng[1]);
				double lng = Double.valueOf(quBitsLng[0]) + Double.valueOf(quBitsLng[1].substring(0, quBitsLng[1].length() - 1))
						/ 60d;
				GeoPoint point = new GeoPoint((int) (lat * 1e6), (int) (lng * -1e6));
				// Log.i(TAG, "Lat " + point.getLatitudeE6() + " lng " +
				// point.getLongitudeE6());

				busStopDao.create(new BusStop(dataBits[0].replace("\"", ""), dataBits[1].replace("\"", ""), dataBits[2].replace(
						"\"", ""), point));

			}

			bufferedReader.close();
		} catch (IOException e) {
			Log.e(TAG, "Line: " + strLine);
			e.printStackTrace();
		}

		Log.i(TAG, "Finished loading busstops, now loading routes");

		inputStream = context.getAssets().open("routes.csv");
		bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the definition " + def);

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Data: " + strLine);
				String[] dataBits = strLine.split(",");

				BusRoute route;

				boolean uniLink;
				int id = Integer.parseInt(dataBits[0]);
				if (id == 326 || id == 468 || id == 327 || id == 329 || id == 354) {
					uniLink = true;
				} else {
					uniLink = false;
				}

				route = new BusRoute(id, dataBits[1], dataBits[2].replace("\"", ""), uniLink);

				if (id == 326) { // U1
					route.forwardDirection = "A";
					route.reverseDirection = "C";
				} else if (id == 329) { // U2
					route.forwardDirection = "B";
					route.reverseDirection = "C";
				} else if (id == 327) { // U6
					route.forwardDirection = "H";
					route.reverseDirection = "C";
				}

				// Log.i(TAG, "Loaded route " + route.id + " " + route.code +
				// " " + route.label);
				busRouteDao.create(route);

			}

			bufferedReader.close();
		} catch (IOException e) {
			Log.e(TAG, "Line: " + strLine);
			e.printStackTrace();
		}

		Log.i(TAG, "Finished loading routes, now loading routestops");

		inputStream = context.getAssets().open("routestops.csv");
		bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the definition " + def);

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Data: " + strLine);
				String[] dataBits = strLine.split(",");

				BusStop busStop = busStopDao.queryForId(dataBits[2]);
				if (busStop != null) {
					// Log.i(TAG, "Found stop " + stop.id);
				} else {
					Log.w(TAG, "No stop found for " + dataBits[2]);
					continue;
				}

				BusRoute busRoute = busRouteDao.queryForId(Integer.parseInt(dataBits[0]));
				if (busRoute != null) {
					// Log.i(TAG, "Found route " + route.id);
				} else {
					Log.w(TAG, "No route found for " + dataBits[0]);
					continue;
				}

				int sequence = Integer.parseInt(dataBits[1]);
				Log.i(TAG, "Creating RouteStop " + busStop.id + " " + busRoute.code + " " + sequence);

				routeStopsDao.create(new RouteStop(busStop, busRoute, sequence));

				if (busRoute.id == 326) { // U1
					busStop.routes = (byte) (busStop.routes | 1);
					busStop.uniLink = true;
				} else if (busRoute.id == 468) { // U1N
					busStop.routes = (byte) (busStop.routes | (1 << 1));
					busStop.uniLink = true;
				} else if (busRoute.id == 329) { // U2
					busStop.routes = (byte) (busStop.routes | (1 << 2));
					busStop.uniLink = true;
				} else if (busRoute.id == 327) { // U6
					busStop.routes = (byte) (busStop.routes | (1 << 3));
					busStop.uniLink = true;
				} else if (busRoute.id == 354) { // U9
					busStop.routes = (byte) (busStop.routes | (1 << 4));
					busStop.uniLink = true;
				}

				// Log.v(TAG, "Stop routes " + busStop.routes);
				busStopDao.update(busStop);

			}

			bufferedReader.close();
		} catch (IOException e) {
			Log.e(TAG, "Line: " + strLine);
			e.printStackTrace();
		}

		/*
		 * for (Iterator<BusStop> busStopIter = busStopDao.iterator(); busStopIter.hasNext();) { BusStop stop =
		 * busStopIter.next(); // Log.i(TAG, "Looking at stop " + stop.id);
		 * 
		 * 
		 * QueryBuilder<RouteStops, Integer> routeStopsQueryBuilder = routeStopsDao.queryBuilder();
		 * routeStopsQueryBuilder.where().eq(columnName, value)
		 * 
		 * DeleteBuilder<BusStop, String> deleteBuilder = busStopDao.deleteBuilder(); // only delete the rows where password is
		 * null deleteBuilder.where().in(RouteStops.STOP_ID_FIELD_NAME, objects) accountDao.delete(deleteBuilder.prepare());
		 * 
		 * 
		 * QueryBuilder<RouteStops, Integer> routeStopsQueryBuilder = routeStopsDao.queryBuilder();
		 * routeStopsQueryBuilder.setCountOf(true); routeStopsQueryBuilder.where().eq(RouteStops.STOP_ID_FIELD_NAME, stop);
		 * 
		 * PreparedQuery<RouteStops> routeStopsPreparedQuery = routeStopsQueryBuilder.prepare(); List<RouteStops> routeStops =
		 * routeStopsDao.query(routeStopsPreparedQuery); // long num = routeStopsDao.query(routeStopsPreparedQuery).size(); //
		 * Log.i(TAG, "Number is " + num);
		 * 
		 * stop.uniLink = false; for (RouteStops routeStop : routeStops) { if (routeStop.busRoute.uniLink) { stop.uniLink = true;
		 * } } busStopDao.update(stop); }
		 */

		Log.i(TAG, "Finished loading bus data");
	}

	public static void loadSiteData(Context context) throws SQLException, IOException {
		Log.i(TAG, "Begining loading site data");

		DatabaseHelper helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);

		TableUtils.clearTable(helper.getConnectionSource(), Site.class);

		Dao<Site, String> siteDao = helper.getSiteDao();

		InputStream inputStream = context.getAssets().open("sites.csv");
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
		String strLine = null;

		try {
			String def = bufferedReader.readLine();
			// Log.i(TAG, "Reading the site definition " + def);

			while ((strLine = bufferedReader.readLine()) != null) {
				// Log.i(TAG, "Site Data: " + strLine);
				String[] dataBits = strLine.split(",");

				GeoPoint point = null;
				if (dataBits[2].length() > 1 && dataBits[3].length() > 1) {
					point = Util.csLatLongToGeoPoint(dataBits[2], dataBits[3]);
				} else {
					point = new GeoPoint(0, 0);
				}

				Polygon poly = Util.csPolygonToPolygon(strLine.split("\"")[1]);
				// Log.i(TAG, "Polygon: " + poly);

				siteDao.create(new Site(dataBits[0], dataBits[1], point, poly));
			}

			bufferedReader.close();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			Log.e(TAG, "Site Line: " + strLine);
			e.printStackTrace();
		}

		Log.i(TAG, "Loaded sites from csv");
	}

	private static Stop getStop(Context context, JSONObject stopObj, Set<BusRoute> routes, BusStop busStop, int age)
			throws SQLException, JSONException {

		if (helper == null)
			helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		if (busRouteDao == null)
			busRouteDao = helper.getBusRouteDao();
		Dao<RouteStop, Integer> routeStopsDao = null;
		if (routeStopsDao == null)
			routeStopsDao = helper.getRouteStopsDao();
		if (busDao == null)
			busDao = helper.getBusDao();
		if (busStopDao == null)
			busStopDao = helper.getBusStopDao();

		String time = stopObj.getString("time");

		GregorianCalendar calender = new GregorianCalendar();
		boolean live = true;
		if (!time.equals("Due")) {

			// Log.v(TAG, "Time: " + time + " current time " +
			// calender.getTime());

			if (time.contains(":")) {
				String[] minAndHour = time.split(":");
				calender.set(Calendar.HOUR_OF_DAY, Integer.parseInt(minAndHour[0]));
				calender.set(Calendar.MINUTE, Integer.parseInt(minAndHour[1]));
				live = false;
			} else {
				// Log.i(TAG, "Parsing " + time.substring(0, time.length() - 1)
				// + " for min");
				calender.add(Calendar.MINUTE, Integer.parseInt(time.substring(0, time.length() - 1)));
			}
			calender.add(Calendar.SECOND, age);

			// Log.v(TAG, "Date: " + calender.getTime());
		}

		String name = stopObj.getString("name");

		BusRoute route = null;
		String dir = "";

		for (BusRoute tempRoute : routes) {
			if (name.contains("U")) {
				if (name.equals("U1N")) {
					if (tempRoute.code.equals(name)) {
						route = tempRoute;
						dir = null;
					}
				} else if (name.equals("U1E")) {
					if (tempRoute.code.equals("U1")) {
						route = tempRoute;
						dir = "E";
					}
				} else {
					if (tempRoute.code.equals(name.substring(0, 2))) {
						route = tempRoute;
						if (route.forwardDirection.equals(name.substring(2))) {
							dir = route.forwardDirection;
						} else if (route.reverseDirection.equals(name.substring(2))) {
							dir = route.reverseDirection;
						} else {
							Log.e(TAG, "Error detecting direction for " + name);
							dir = null;
							return null;
						}
					}
				}
			} else {
				if (tempRoute.code.equals(name)) {
					route = tempRoute;
					dir = null;
				}
			}
		}

		if (route == null) {
			Log.e(TAG, "Route not found (route == null) " + name);
			return null;
		}

		if (dir != null && dir.equals("")) {
			Log.e(TAG, "Error detecting direction for " + name);
			return null;
		}

		String destString = stopObj.getString("dest");
		BusStop destStop = null;

		if (destString.equals("Central Station")) {
			destStop = busStopDao.queryForId("SN120520");
		} else if (destString.equals("Civic Centre")) {
			destStop = busStopDao.queryForId("SN120527");
		} else if (destString.equals("City DG4")) {
			destStop = busStopDao.queryForId("HAA13579");
		} else if (destString.equals("Airport")) {
			destStop = busStopDao.queryForId("HA030184");
		} else if (destString.equals("City, Town Quay")) {
			destStop = busStopDao.queryForId("SNA13766");
		} else if (destString.equals("City Centre")) {
			destStop = busStopDao.queryForId("SNA13766");
		} else if (destString.equals("Dock Gate 4")) {
			destStop = busStopDao.queryForId("MG1031");
		} else if (destString.equals("Eastleigh")) {
			destStop = busStopDao.queryForId("HA030212");
		} else if (destString.equals("Crematorium")) {
			destStop = busStopDao.queryForId("SN121009");
		} else if (destString.equals("General Hosp")) {
			destStop = busStopDao.queryForId("SNA19482");
		} else if (destString.equals("Wessex Lane")) {
			destStop = busStopDao.queryForId("SNA19780");
		} else {
			Log.e(TAG, "Unknown end dest " + destString + " for route " + route.code);
		}

		if (destStop != null) {

			QueryBuilder<RouteStop, Integer> routeStopsQueryBuilder = routeStopsDao.queryBuilder();
			routeStopsQueryBuilder.where().eq(RouteStop.ROUTE_ID_FIELD_NAME, route.id).and()
					.eq(RouteStop.STOP_ID_FIELD_NAME, destStop.id);
			PreparedQuery<RouteStop> routeStopsPreparedQuery = routeStopsQueryBuilder.prepare();

			List<RouteStop> routeStops = routeStopsDao.query(routeStopsPreparedQuery);
			if (routeStops.size() > 0) {
				// Log.i(TAG, "Found " + routeStops.size() + " stops matching the destStop " + destStop + " on route " +
				// route.code);
			} else {
				Log.w(TAG, "Found " + routeStops.size() + " stops matching the destStop " + destStop + " on route " + route.code);
			}
		}

		Date now = new Date(System.currentTimeMillis());

		String busID = null;
		Stop stop;
		Bus bus;
		if (stopObj.has("vehicle")) {
			busID = stopObj.getString("vehicle");

			QueryBuilder<Bus, Integer> busQueryBuilder = busDao.queryBuilder();
			busQueryBuilder.where().eq(Bus.ID_FIELD_NAME, busID);
			PreparedQuery<Bus> busPreparedQuery = busQueryBuilder.prepare();

			bus = busDao.queryForFirst(busPreparedQuery);

			if (bus == null) {
				bus = new Bus(busID, route, dir);
				bus.destination = destStop;
				bus.destinationString = destString;
				busDao.create(bus);
			} else {
				bus.destination = destStop;
				bus.destinationString = destString;
				bus.route = route;
				bus.direction = dir;
				busDao.update(bus);
			}

		} else {
			bus = new Bus(null, route, dir);
			bus.destinationString = destString;
			bus.destination = destStop;
			busDao.create(bus);
		}

		stop = new Stop(bus, busStop, calender.getTime(), now, live);

		return stop;
	}

	/**
	 * Get the timetable for the bus stop.
	 * 
	 * @param context
	 * @param busStop
	 * @param keepUniLink
	 * @param keepNonUniLink
	 * @return
	 * @throws SQLException
	 * @throws ClientProtocolException
	 * @throws IOException
	 * @throws JSONException
	 */
	public static Timetable getTimetable(Context context, String busStop, boolean keepUniLink, boolean keepNonUniLink)
			throws SQLException, ClientProtocolException, IOException, JSONException {

		if (helper == null)
			helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		if (busRouteDao == null)
			busRouteDao = helper.getBusRouteDao();
		if (busStopDao == null)
			busStopDao = helper.getBusStopDao();

		Timetable timetable = new Timetable();

		String file = getFileFromServer(busStopUrl + busStop + ".json");

		JSONObject data = new JSONObject(file);
		JSONArray stopsArray = data.getJSONArray("stops");
		JSONObject routesObject = data.getJSONObject("routes");

		HashSet<BusRoute> busRoutes = new HashSet<BusRoute>();
		for (@SuppressWarnings("unchecked")
		Iterator<String> keyIter = routesObject.keys(); keyIter.hasNext();) {
			String key = keyIter.next();

			// Log.v(TAG, "Route Key: " + key);

			BusRoute route = busRouteDao.queryForId(Integer.parseInt(key.substring(key.length() - 3, key.length())));

			if (route != null) {
				busRoutes.add(route);
			} else {
				throw new RuntimeException("Route not found " + key.substring(key.length() - 3, key.length()) + " " + key);
			}
		}

		int age = Integer.parseInt(data.getString("age"));

		// Log.v(TAG, "Stops: " + data.getJSONArray("stops"));

		for (int stopNum = 0; stopNum < stopsArray.length(); stopNum++) {
			JSONObject stopObj = stopsArray.getJSONObject(stopNum);

			if (!keepNonUniLink && !stopObj.getString("name").startsWith("U")) {
				// Log.v(TAG, "Skipping non uni-link stop " + stopObj.getString("name"));
				continue;
			}

			if (!keepUniLink && stopObj.getString("name").startsWith("U")) {
				// Log.v(TAG, "Skipping uni-link stop " + stopObj.getString("name"));
				continue;
			}

			BusStop busStopObj = busStopDao.queryForId(busStop);
			if (busStopObj == null) {
				Log.e(TAG, "BusStopObj == null");
			}

			Stop stop = getStop(context, stopObj, busRoutes, busStopObj, age);

			if (stop == null) {
				Log.e(TAG, "Null stop, skiping");
				continue;
			}

			timetable.add(stop);
		}

		timetable.fetchTime = new Date(System.currentTimeMillis());

		return timetable;
	}

	/**
	 * 
	 * @param context
	 * @param bus
	 * @param startStop
	 * @param num
	 * @return
	 * @throws SQLException
	 * @throws ClientProtocolException
	 * @throws IOException
	 * @throws JSONException
	 */
	public static Timetable getTimetable(Context context, Bus bus, BusStop startStop, int num) throws SQLException,
			ClientProtocolException, IOException, JSONException {

		if (helper == null)
			helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		if (busRouteDao == null)
			busRouteDao = helper.getBusRouteDao();
		if (busStopDao == null)
			busStopDao = helper.getBusStopDao();

		Timetable timetable = new Timetable();

		List<BusStop> busStops = new ArrayList<BusStop>(num);
		busStops.add(startStop);

		BusRoute route = bus.route;

		for (int i = 0; i < num; i++) {
			BusStop nextStop = route.moveInRoute(context, busStops.get(i), bus.direction, 1);

			if (nextStop != null) {
				busStops.add(nextStop);
			} else {
				Log.e(TAG, "nextStop is null");
			}
		}

		for (BusStop busStop : busStops) {

			String file = getFileFromServer(busStopUrl + busStop.id + ".json");

			JSONObject data = new JSONObject(file);
			JSONArray stopsArray = data.getJSONArray("stops");

			int age = Integer.parseInt(data.getString("age"));

			HashSet<BusRoute> busRoutes = new HashSet<BusRoute>();
			busRoutes.add(bus.route);

			// Log.v(TAG, "Number of entries " + data.length());

			// Log.v(TAG, "Stops: " + data.getJSONArray("stops"));

			for (int stopNum = 0; stopNum < stopsArray.length(); stopNum++) {
				JSONObject stopObj = stopsArray.getJSONObject(stopNum);

				if (stopObj.getString("vehicle").equals(bus.id)) {

					Stop stop = getStop(context, stopObj, busRoutes, busStop, age);

					if (stop == null) {
						Log.w(TAG, "Null stop, skiping");
						continue;
					}

					// Log.v(TAG, "Found stop for a unidentified " + stop.bus.toString() + " at " + stop.busStop.id + " at "
					// + stop.arivalTime);

					timetable.add(stop);

				}
			}
		}

		timetable.fetchTime = new Date(System.currentTimeMillis());

		return timetable;
	}

	public static Stop getStop(Context context, Bus bus, BusStop busStop) throws SQLException, ClientProtocolException,
			IOException, JSONException {

		if (helper == null)
			helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		if (busRouteDao == null)
			busRouteDao = helper.getBusRouteDao();
		if (busStopDao == null)
			busStopDao = helper.getBusStopDao();

		String file = getFileFromServer(busStopUrl + busStop.id + ".json");

		JSONObject data = new JSONObject(file);
		JSONArray stopsArray = data.getJSONArray("stops");

		HashSet<BusRoute> busRoutes = new HashSet<BusRoute>();
		busRouteDao.refresh(bus.route);
		busRoutes.add(bus.route);

		int age = Integer.parseInt(data.getString("age"));

		Stop stop = null;

		// Log.v(TAG, "Number of entries " + data.length());

		// Log.v(TAG, "Stops: " + data.getJSONArray("stops"));

		for (int stopNum = 0; stopNum < stopsArray.length(); stopNum++) {
			JSONObject stopObj = stopsArray.getJSONObject(stopNum);

			// Log.v(TAG, "stopObj: " + stopObj);
			if (stopObj.has("vehicle") && stopObj.getString("vehicle").equals(bus.id)) {

				stop = getStop(context, stopObj, busRoutes, busStop, age);
				break;

				// Log.v(TAG, "Found stop for a unidentified " +
				// stop.bus.toString() + " at " + stop.busStop.id + " at "
				// + stop.arivalTime);
			}
		}

		return stop;
	}

	static PathOverlay getRoutePath(InputStream routeResource, int colour, ResourceProxy resProxy) {
		PathOverlay data = null;

		// sax stuff
		try {
			SAXParserFactory spf = SAXParserFactory.newInstance();
			SAXParser sp = spf.newSAXParser();

			XMLReader xr = sp.getXMLReader();

			DataHandler dataHandler = new DataHandler(colour, resProxy);
			xr.setContentHandler(dataHandler);

			xr.parse(new InputSource(routeResource));

			data = dataHandler.getData();

		} catch (ParserConfigurationException pce) {
			Log.e("SAX XML", "sax parse error", pce);
		} catch (SAXException se) {
			Log.e("SAX XML", "sax error", se);
		} catch (IOException ioe) {
			Log.e("SAX XML", "sax parse io error", ioe);
		}

		return data;
	}

	public static String getFileFromServer(String request) throws ClientProtocolException, IOException {
		StringBuilder builder = new StringBuilder();
		HttpClient client = new DefaultHttpClient();
		HttpGet httpGet = new HttpGet(request);
		// Log.v("Util.getFileFromServer", "Request used: " + request);

		HttpResponse response = client.execute(httpGet);
		StatusLine statusLine = response.getStatusLine();
		int statusCode = statusLine.getStatusCode();
		if (statusCode == 200) {
			HttpEntity entity = response.getEntity();
			InputStream content = entity.getContent();
			BufferedReader reader = new BufferedReader(new InputStreamReader(content));
			String line;
			while ((line = reader.readLine()) != null) {
				builder.append(line);
			}
		} else {
			Log.e("", "Failed to download file");
		}

		return builder.toString();
	}

	public static void routeMovementTest(Context context) throws SQLException {

		Dao<RouteStop, Integer> routeStopsDao = null;

		if (helper == null)
			helper = OpenHelperManager.getHelper(context, DatabaseHelper.class);
		if (routeStopsDao == null)
			routeStopsDao = helper.getRouteStopsDao();
		if (busRouteDao == null)
			busRouteDao = helper.getBusRouteDao();
		if (busStopDao == null)
			busStopDao = helper.getBusStopDao();

		for (BusRoute busRoute : busRouteDao) {
			if (!busRoute.code.startsWith("U") || busRoute.code.equals("U9")) {
				continue;
			}
			List<RouteStop> routeStops = routeStopsDao.queryForEq(RouteStop.ROUTE_ID_FIELD_NAME, busRoute.id);

			ArrayList<String> directions = new ArrayList<String>();
			if (busRoute.forwardDirection != null) {
				directions.add(busRoute.forwardDirection);
			}
			if (busRoute.reverseDirection != null) {
				directions.add(busRoute.reverseDirection);
			}
			if (directions.size() == 0) {
				directions.add(null);
			}

			BusStop startBusStop = null;

			for (int moveAmount = 1; moveAmount >= -1; moveAmount = moveAmount - 2) {
				for (String direction : directions) {
					for (int busStop = 0; busStop < routeStops.size() && busStop >= 0; busStop = busStop + moveAmount) {
						// if
						// (routeStops.get(busStop).stop.equals(startBusStop))
						// continue;
						startBusStop = routeStops.get(busStop).busStop;
						busStopDao.refresh(startBusStop);

						BusStop predictedNextStop = busRoute.moveInRoute(context, startBusStop, direction, moveAmount);

						BusStop nextStop;
						if (busStop == routeStops.size() - 1) {
							nextStop = routeStops.get(0).busStop;
						} else {
							nextStop = routeStops.get(busStop + 1).busStop;
						}
						busStopDao.refresh(nextStop);

						if (!nextStop.equals(predictedNextStop) && !startBusStop.equals(nextStop)) {
							Log.e(TAG, "predicted: " + predictedNextStop + " next: " + nextStop);
							Log.e(TAG, startBusStop.id + " " + nextStop.id);
							return;
						}
					}
				}
			}
		}

	}
}