org.teleportr.plugin.BahnDePlugIn.java Source code

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Here is the source code for org.teleportr.plugin.BahnDePlugIn.java

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/**
 * Copyright (c) 2010: andlabs gbr, teleportr.org All rights reserved.
 *   
 * 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 3 of the License, or
 * (at your option) any later version <http://www.gnu.org/licenses/>
 *
 * 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.
 *
**/

package org.teleportr.plugin;

import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Scanner;
import java.util.regex.MatchResult;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.teleportr.R;
import org.teleportr.Teleporter;
import org.teleportr.model.Place;
import org.teleportr.model.Ride;
import android.content.Intent;
import android.net.Uri;
import android.util.Log;

public class BahnDePlugIn implements IPlugIn {

    private static final String TAG = "BahnDePlugIn";
    private DefaultHttpClient client;
    private ArrayList<Ride> rides;

    public BahnDePlugIn() {
        rides = new ArrayList<Ride>();
        client = new DefaultHttpClient();
    }

    public ArrayList<Ride> find(Place orig, Place dest, Date time, Teleporter tlp) {

        StringBuilder url = new StringBuilder();
        url.append("http://mobile.bahn.de/bin/mobil/query.exe/dox?");
        url.append("n=1");

        //        if (orig.city!=null)
        //           Log.d(TAG, "city: "+orig.city);
        if (orig.address != null)
            url.append("&f=2&s=")
                    .append(URLEncoder.encode(orig.address + (orig.city != null ? (", " + orig.city) : "") + "!"));
        else
            url.append("&f=1&s=")
                    .append(URLEncoder.encode(orig.name + (orig.city != null ? (", " + orig.city) : "") + "!"));

        if (dest.address != null)
            url.append("&o=2&z=")
                    .append(URLEncoder.encode(dest.address + (dest.city != null ? (", " + dest.city) : "") + "!"));
        else
            url.append("&o=1&z=")
                    .append(URLEncoder.encode(dest.name + (dest.city != null ? (", " + dest.city) : "") + "!"));

        url.append("&d="); // date
        url.append((new SimpleDateFormat("ddMMyy")).format(time));
        url.append("&t="); // time
        url.append((new SimpleDateFormat("HHmm")).format(time));
        url.append("&start=Suchen");
        //        Log.d(TAG, "url: "+url.toString());

        // fetch
        try {
            Ride r;
            MatchResult m;
            rides.clear();
            Scanner scanner = new Scanner(client.execute(new HttpGet(url.toString())).getEntity().getContent(),
                    "iso-8859-1");
            Log.d(TAG, " url: " + url.toString());
            while (scanner.findWithinHorizon("<a href=\"([^\"]*)\">(\\d\\d):(\\d\\d)<br />(\\d\\d):(\\d\\d)",
                    10000) != null) {
                m = scanner.match();
                Date dep = parseDate(m.group(2), m.group(3));
                if (dep.getTime() - time.getTime() > 100000) {
                    r = new Ride();
                    r.orig = orig;
                    r.dest = dest;
                    r.mode = Ride.MODE_TRANSIT;
                    r.dep = dep;
                    r.arr = parseDate(m.group(4), m.group(5));
                    r.price = -1;
                    r.fun = 3;
                    r.eco = 3;
                    r.fast = 1;
                    r.social = 2;
                    r.green = 4;
                    r.uri = m.group(1).replace("&amp;", "&");

                    rides.add(r);
                    Log.d(TAG, " + found " + r.uri);
                }
            }
        } catch (Exception e) {
            Log.e(TAG, "Mist!");
            e.printStackTrace();
        }
        return rides;
    }

    private Date parseDate(String hours, String minutes) {
        Date date = new Date();
        date.setHours(Integer.parseInt(hours));
        date.setMinutes(Integer.parseInt(minutes));
        date.setSeconds(0);
        //date.setTime((date.getTime() / 1000) * 1000);
        if (System.currentTimeMillis() - date.getTime() > 300000) { // Mitternacht..
            long oneDay = (long) 1000.0 * 60 * 60 * 24;
            date.setTime(date.getTime() + oneDay);
        }
        return date;
    }

    @Override
    public void share(Ride offer) {
        // TODO Auto-generated method stub
    }

}