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	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	public boolean lookupStationsByName(String name) {
19	return false; // Not supported
20	}
21
22	@Override
23	public boolean lookupStationsByIds(String ids) {
24	return false;
25	}
26
27	@Override
28	public boolean lookupStations(Location location) {
29	boolean success = false;
30	//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	String data = DownloadUtil.getContentString(urlSource, 30000);
36	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	success = true;
68	} catch (Exception e) {
69	Log.e("Location","Location",e);
70	}
71	return success;
72	}
73
74	@Override
75	public List<StationBean> getStations() {
76	return stations;
77	}
78
79
80	}