| 1 |
package dk.thoerup.traininfo.provider; |
| 2 |
|
| 3 |
import java.io.ByteArrayInputStream; |
| 4 |
import java.io.IOException; |
| 5 |
import java.util.ArrayList; |
| 6 |
import java.util.List; |
| 7 |
|
| 8 |
import javax.xml.parsers.DocumentBuilder; |
| 9 |
import javax.xml.parsers.DocumentBuilderFactory; |
| 10 |
import javax.xml.parsers.ParserConfigurationException; |
| 11 |
|
| 12 |
import org.w3c.dom.Document; |
| 13 |
import org.w3c.dom.Node; |
| 14 |
import org.w3c.dom.NodeList; |
| 15 |
import org.xml.sax.SAXException; |
| 16 |
|
| 17 |
import android.location.Location; |
| 18 |
import android.util.Log; |
| 19 |
import dk.thoerup.traininfo.StationBean; |
| 20 |
import dk.thoerup.traininfo.util.DownloadUtil; |
| 21 |
|
| 22 |
public class XmlStationProvider implements StationProvider { |
| 23 |
|
| 24 |
List<StationBean> stations = new ArrayList<StationBean>(); |
| 25 |
|
| 26 |
|
| 27 |
@Override |
| 28 |
public List<StationBean> getStations() { |
| 29 |
return stations; |
| 30 |
} |
| 31 |
|
| 32 |
@Override |
| 33 |
public void lookupStations(Location location) { |
| 34 |
|
| 35 |
String url = "http://app.t-hoerup.dk/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude(); |
| 36 |
Log.i("url", url); |
| 37 |
try { |
| 38 |
stations.clear(); |
| 39 |
|
| 40 |
String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1"); |
| 41 |
|
| 42 |
|
| 43 |
Document doc = parseXML(xml); |
| 44 |
Node rootNode = doc.getDocumentElement(); // stations |
| 45 |
NodeList stationList = rootNode.getChildNodes(); |
| 46 |
|
| 47 |
|
| 48 |
for (int i=0; i<stationList.getLength(); i++) { |
| 49 |
Node stationNode = stationList.item(i); |
| 50 |
|
| 51 |
if (! stationNode.getNodeName().equals("station")) |
| 52 |
continue; |
| 53 |
|
| 54 |
StationBean station = new StationBean(); |
| 55 |
|
| 56 |
NodeList stationElements = stationNode.getChildNodes(); |
| 57 |
for (int j=0; j<stationElements.getLength(); j++) { |
| 58 |
Node current = stationElements.item(j); |
| 59 |
|
| 60 |
String content = null; |
| 61 |
if (current.getFirstChild() != null) |
| 62 |
content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value |
| 63 |
|
| 64 |
String nodeName = current.getNodeName(); |
| 65 |
|
| 66 |
if (nodeName.equals("id")) |
| 67 |
station.setId( Integer.parseInt(content)); |
| 68 |
|
| 69 |
if (nodeName.equals("name")) |
| 70 |
station.setName(content); |
| 71 |
|
| 72 |
if (nodeName.equals("latitude")) |
| 73 |
station.setLatitude( Double.parseDouble(content) ); |
| 74 |
|
| 75 |
if (nodeName.equals("longitude")) |
| 76 |
station.setLongitude( Double.parseDouble(content) ); |
| 77 |
|
| 78 |
if (nodeName.equals("stationcode")) |
| 79 |
station.setCode(content); |
| 80 |
|
| 81 |
if (nodeName.equals("calcdist")) |
| 82 |
station.setDistance( (int) Double.parseDouble(content) ); |
| 83 |
|
| 84 |
} |
| 85 |
stations.add(station); |
| 86 |
} |
| 87 |
|
| 88 |
|
| 89 |
} catch (Exception e) { |
| 90 |
Log.e("XmlStationProvider", "lookupStations: ", e); |
| 91 |
} |
| 92 |
} |
| 93 |
|
| 94 |
public Document parseXML(String str) throws SAXException, IOException, ParserConfigurationException |
| 95 |
{ |
| 96 |
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); |
| 97 |
return builder.parse( new ByteArrayInputStream(str.getBytes()) ); |
| 98 |
} |
| 99 |
} |
Parent Directory
| 
Revision Log