traininfo/provider/GoogleStationProvider.java

package dk.thoerup.traininfo.provider;

import java.util.ArrayList;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONObject;

import android.location.Location;
import android.util.Log;
import dk.thoerup.traininfo.StationBean;
import dk.thoerup.traininfo.util.DownloadUtil;

public class GoogleStationProvider implements StationProvider {

        List<StationBean> stations = new ArrayList<StationBean>();
        
        public boolean lookupStations(String name) {
                return false; // Not supported
        }
        
        @Override
        public boolean lookupStations(Location location) {
                boolean success = false;
                //ToDo: to be nice put the api key into the request
                String urlSource = "http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&q=Train%20station&near=" + location.getLatitude() + "%2C" + location.getLongitude() + "&v=1.0";
                //String urlSource = "http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&q=Train%20station&near=56.2%2C9.0&v=1.0";

                try {
                        String data = DownloadUtil.getContentString(urlSource, 30000);
                        StringBuilder builder = new StringBuilder(data);

                        while (builder.charAt(0) != '{')
                                builder.deleteCharAt(0);
                        while (builder.charAt(builder.length()-1) != '}')
                                builder.deleteCharAt(builder.length()-1);

                        JSONObject json = new JSONObject(builder.toString());
                        // now have some fun with the results...
                        JSONArray res = json.getJSONArray("results");

                        Location tmpLocation = new Location("gps");
                        stations.clear();

                        for (int i=0; i<res.length(); i++) {
                                JSONObject jsonStation = res.getJSONObject(i);

                                double lat = jsonStation.getDouble("lat");
                                double lng = jsonStation.getDouble("lng");
                                String title = jsonStation.getString("title");
                                String addr = jsonStation.getString("streetAddress");
                                tmpLocation.setLatitude(lat);
                                tmpLocation.setLongitude(lng);

                                float distance = location.distanceTo(tmpLocation);

                                stations.add( new StationBean(title,lat,lng,(int)distance,addr) );

                                Log.e("Location", title + " " + lat +"," + lng);
                        }

                        success = true;
                } catch (Exception e) {
                        Log.e("Location","Location",e);
                }
                return success;
        }

        @Override
        public List<StationBean> getStations() {
                return stations;
        }


}
1	torben	253	package dk.thoerup.traininfo.provider;
2
3			import java.util.ArrayList;
4			import java.util.List;
5
6			import org.json.JSONArray;
7			import org.json.JSONObject;
8
9			import android.location.Location;
10			import android.util.Log;
11			import dk.thoerup.traininfo.StationBean;
12			import dk.thoerup.traininfo.util.DownloadUtil;
13
14			public class GoogleStationProvider implements StationProvider {
15
16			List<StationBean> stations = new ArrayList<StationBean>();
17
18	torben	381	public boolean lookupStations(String name) {
19			return false; // Not supported
20			}
21
22	torben	253	@Override
23	torben	319	public boolean lookupStations(Location location) {
24			boolean success = false;
25	torben	253	//ToDo: to be nice put the api key into the request
26			String urlSource = "http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&q=Train%20station&near=" + location.getLatitude() + "%2C" + location.getLongitude() + "&v=1.0";
27			//String urlSource = "http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&q=Train%20station&near=56.2%2C9.0&v=1.0";
28
29			try {
30	torben	283	String data = DownloadUtil.getContentString(urlSource, 30000);
31	torben	253	StringBuilder builder = new StringBuilder(data);
32
33			while (builder.charAt(0) != '{')
34			builder.deleteCharAt(0);
35			while (builder.charAt(builder.length()-1) != '}')
36			builder.deleteCharAt(builder.length()-1);
37
38			JSONObject json = new JSONObject(builder.toString());
39			// now have some fun with the results...
40			JSONArray res = json.getJSONArray("results");
41
42			Location tmpLocation = new Location("gps");
43			stations.clear();
44
45			for (int i=0; i<res.length(); i++) {
46			JSONObject jsonStation = res.getJSONObject(i);
47
48			double lat = jsonStation.getDouble("lat");
49			double lng = jsonStation.getDouble("lng");
50			String title = jsonStation.getString("title");
51			String addr = jsonStation.getString("streetAddress");
52			tmpLocation.setLatitude(lat);
53			tmpLocation.setLongitude(lng);
54
55			float distance = location.distanceTo(tmpLocation);
56
57			stations.add( new StationBean(title,lat,lng,(int)distance,addr) );
58
59			Log.e("Location", title + " " + lat +"," + lng);
60			}
61
62	torben	319	success = true;
63	torben	253	} catch (Exception e) {
64			Log.e("Location","Location",e);
65			}
66	torben	319	return success;
67	torben	253	}
68
69			@Override
70			public List<StationBean> getStations() {
71			return stations;
72			}
73
74
75			}