traininfo/provider/XmlStationProvider.java

package dk.thoerup.traininfo.provider;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.SAXException;

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

public class XmlStationProvider implements StationProvider {

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

        @Override
        public void lookupStations(Location location) {
                
                //String url = "http://pumba.t-hoerup.dk:8080/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
                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 = 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();
                                        
                                        Log.i("XML", "" + nodeName + "=" + 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);                          
                        }               
                        
                        
                } catch (Exception e) {
                        Log.e("XmlStationProvider", "lookupStations: ", e);
                }
        }

        public Document parseXML(String str) throws SAXException, IOException, ParserConfigurationException
        {
                DocumentBuilder builder =  DocumentBuilderFactory.newInstance().newDocumentBuilder();
                return  builder.parse( new ByteArrayInputStream(str.getBytes()) );              
        }
}
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.w3c.dom.Text;
16	import org.xml.sax.SAXException;
17
18	import android.location.Location;
19	import android.util.Log;
20	import dk.thoerup.traininfo.StationBean;
21	import dk.thoerup.traininfo.util.DownloadUtil;
22
23	public class XmlStationProvider implements StationProvider {
24
25	List<StationBean> stations = new ArrayList<StationBean>();
26
27
28	@Override
29	public List<StationBean> getStations() {
30	return stations;
31	}
32
33	@Override
34	public void lookupStations(Location location) {
35
36	//String url = "http://pumba.t-hoerup.dk:8080/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
37	String url = "http://app.t-hoerup.dk/TrainInfoService/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
38	Log.i("url", url);
39	try {
40	stations.clear();
41
42	String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1");
43
44
45	Document doc = parseXML(xml);
46	Node rootNode = doc.getDocumentElement(); // stations
47	NodeList stationList = rootNode.getChildNodes();
48
49
50	for (int i=0; i<stationList.getLength(); i++) {
51	Node stationNode = stationList.item(i);
52
53	if (! stationNode.getNodeName().equals("station"))
54	continue;
55
56	StationBean station = new StationBean();
57
58	NodeList stationElements = stationNode.getChildNodes();
59	for (int j=0; j<stationElements.getLength(); j++) {
60	Node current = stationElements.item(j);
61
62	String content = null;
63	if (current.getFirstChild() != null)
64	content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
65
66	String nodeName = current.getNodeName();
67
68	Log.i("XML", "" + nodeName + "=" + content);
69
70	if (nodeName.equals("name"))
71	station.setName(content);
72
73	if (nodeName.equals("latitude"))
74	station.setLatitude( Double.parseDouble(content) );
75
76	if (nodeName.equals("longitude"))
77	station.setLongitude( Double.parseDouble(content) );
78
79	if (nodeName.equals("stationcode"))
80	station.setCode(content);
81
82	if (nodeName.equals("calcdist"))
83	station.setDistance( (int) Double.parseDouble(content) );
84
85	}
86	stations.add(station);
87	}
88
89
90	} catch (Exception e) {
91	Log.e("XmlStationProvider", "lookupStations: ", e);
92	}
93	}
94
95	public Document parseXML(String str) throws SAXException, IOException, ParserConfigurationException
96	{
97	DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
98	return builder.parse( new ByteArrayInputStream(str.getBytes()) );
99	}
100	}