traininfo/provider/XmlStationProvider.java

package dk.thoerup.traininfo.provider;

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

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

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

public class XmlStationProvider implements StationProvider {

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

        @Override
        public boolean lookupStations(Location location) {
                boolean success = false;
                String url = "http://app.t-hoerup.dk/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
                Log.i("url", url);
                try {
                        stations.clear();
                        
                        String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1");
                        
                        
                        Document doc = XmlUtil.parseXML(xml);
                        Node rootNode = doc.getDocumentElement(); // stations
                        NodeList stationList = rootNode.getChildNodes();
                        

                        for (int i=0; i<stationList.getLength(); i++) {
                                Node stationNode = stationList.item(i);
                                
                                if (! stationNode.getNodeName().equals("station"))
                                        continue;
        
                                StationBean station = new StationBean();
                                
                                NodeList stationElements = stationNode.getChildNodes();
                                for (int j=0; j<stationElements.getLength(); j++) {     
                                        Node current = stationElements.item(j);
                                                                                
                                        String content = null;
                                        if (current.getFirstChild() != null) 
                                                content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
                                        
                                        String nodeName = current.getNodeName();
                                        
                                        if (nodeName.equals("id"))
                                                station.setId( Integer.parseInt(content));
                                        
                                        if (nodeName.equals("name"))
                                                station.setName(content);
                                        
                                        if (nodeName.equals("latitude"))
                                                station.setLatitude( Double.parseDouble(content) );
                                        
                                        if (nodeName.equals("longitude"))
                                                station.setLongitude( Double.parseDouble(content) );
                                        
                                        if (nodeName.equals("stationcode"))
                                                station.setCode(content);
                                        
                                        if (nodeName.equals("calcdist"))
                                                station.setDistance( (int) Double.parseDouble(content) );

                                }
                                stations.add(station);                          
                        }
                        success = true;
                        
                        
                } catch (Exception e) {
                        Log.e("XmlStationProvider", "lookupStations: ", e);
                }
                return success;
        }
}
1	torben	294	package dk.thoerup.traininfo.provider;
2
3			import java.util.ArrayList;
4			import java.util.List;
5
6			import org.w3c.dom.Document;
7			import org.w3c.dom.Node;
8			import org.w3c.dom.NodeList;
9
10			import android.location.Location;
11			import android.util.Log;
12			import dk.thoerup.traininfo.StationBean;
13			import dk.thoerup.traininfo.util.DownloadUtil;
14	torben	352	import dk.thoerup.traininfo.util.XmlUtil;
15	torben	294
16			public class XmlStationProvider implements StationProvider {
17
18			List<StationBean> stations = new ArrayList<StationBean>();
19
20
21			@Override
22			public List<StationBean> getStations() {
23			return stations;
24			}
25
26			@Override
27	torben	319	public boolean lookupStations(Location location) {
28			boolean success = false;
29	torben	294	String url = "http://app.t-hoerup.dk/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
30			Log.i("url", url);
31			try {
32			stations.clear();
33
34	torben	302	String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1");
35	torben	294
36
37	torben	352	Document doc = XmlUtil.parseXML(xml);
38	torben	294	Node rootNode = doc.getDocumentElement(); // stations
39			NodeList stationList = rootNode.getChildNodes();
40
41
42			for (int i=0; i<stationList.getLength(); i++) {
43			Node stationNode = stationList.item(i);
44
45			if (! stationNode.getNodeName().equals("station"))
46			continue;
47
48			StationBean station = new StationBean();
49
50			NodeList stationElements = stationNode.getChildNodes();
51			for (int j=0; j<stationElements.getLength(); j++) {
52			Node current = stationElements.item(j);
53
54			String content = null;
55			if (current.getFirstChild() != null)
56			content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
57
58			String nodeName = current.getNodeName();
59
60	torben	310	if (nodeName.equals("id"))
61			station.setId( Integer.parseInt(content));
62
63	torben	294	if (nodeName.equals("name"))
64			station.setName(content);
65
66			if (nodeName.equals("latitude"))
67			station.setLatitude( Double.parseDouble(content) );
68
69			if (nodeName.equals("longitude"))
70			station.setLongitude( Double.parseDouble(content) );
71
72			if (nodeName.equals("stationcode"))
73			station.setCode(content);
74
75			if (nodeName.equals("calcdist"))
76			station.setDistance( (int) Double.parseDouble(content) );
77
78			}
79			stations.add(station);
80	torben	319	}
81			success = true;
82	torben	294
83
84			} catch (Exception e) {
85			Log.e("XmlStationProvider", "lookupStations: ", e);
86			}
87	torben	319	return success;
88	torben	294	}
89			}