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 lookupStationsByName(String name) {
                return false; // Not supported
        }
        
        @Override
        public boolean lookupStationsByIds(String ids) {
                return false;
        }
        
        @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	433	public boolean lookupStationsByName(String name) {
19	torben	381	return false; // Not supported
20			}
21
22	torben	253	@Override
23	torben	433	public boolean lookupStationsByIds(String ids) {
24			return false;
25			}
26
27			@Override
28	torben	319	public boolean lookupStations(Location location) {
29			boolean success = false;
30	torben	253	//ToDo: to be nice put the api key into the request
31			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";
32			//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";
33
34			try {
35	torben	283	String data = DownloadUtil.getContentString(urlSource, 30000);
36	torben	253	StringBuilder builder = new StringBuilder(data);
37
38			while (builder.charAt(0) != '{')
39			builder.deleteCharAt(0);
40			while (builder.charAt(builder.length()-1) != '}')
41			builder.deleteCharAt(builder.length()-1);
42
43			JSONObject json = new JSONObject(builder.toString());
44			// now have some fun with the results...
45			JSONArray res = json.getJSONArray("results");
46
47			Location tmpLocation = new Location("gps");
48			stations.clear();
49
50			for (int i=0; i<res.length(); i++) {
51			JSONObject jsonStation = res.getJSONObject(i);
52
53			double lat = jsonStation.getDouble("lat");
54			double lng = jsonStation.getDouble("lng");
55			String title = jsonStation.getString("title");
56			String addr = jsonStation.getString("streetAddress");
57			tmpLocation.setLatitude(lat);
58			tmpLocation.setLongitude(lng);
59
60			float distance = location.distanceTo(tmpLocation);
61
62			stations.add( new StationBean(title,lat,lng,(int)distance,addr) );
63
64			Log.e("Location", title + " " + lat +"," + lng);
65			}
66
67	torben	319	success = true;
68	torben	253	} catch (Exception e) {
69			Log.e("Location","Location",e);
70			}
71	torben	319	return success;
72	torben	253	}
73
74			@Override
75			public List<StationBean> getStations() {
76			return stations;
77			}
78
79
80			}