traininfo/provider/XmlTimetableProvider.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.util.Log;
import dk.thoerup.traininfo.TimetableBean;
import dk.thoerup.traininfo.util.DownloadUtil;
import dk.thoerup.traininfo.util.XmlUtil;

public class XmlTimetableProvider implements TimetableProvider {
        
        List<TimetableBean> timetables = new ArrayList<TimetableBean>();

        @Override
        public List<TimetableBean> getTimetable() {
                return timetables;
        }

        @Override
        public boolean lookupTimetable(String trainID) {
                boolean success = false;
                String url = XmlUtil.SERVICE_BASE + "/TimetableServlet?train=" + trainID ;
                Log.i("url", url);
                try {
                        timetables.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 entryNode = stationList.item(i);
                                
                                if (! entryNode.getNodeName().equals("entry"))
                                        continue;
        
                                TimetableBean timetable = new TimetableBean();
                                
                                NodeList entries = entryNode.getChildNodes();
                                for (int j=0; j<entries.getLength(); j++) {     
                                        Node current = entries.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("station"))
                                                timetable.setStation( content );                                                
                                        
                                        if (nodeName.equals("arrival"))
                                                timetable.setArrival( content );
                                        
                                        if (nodeName.equals("departure"))
                                                timetable.setDeparture( content );
                                        
                                        if (nodeName.equals("current"))
                                                timetable.setCurrent( Boolean.parseBoolean(content) );

                                }
                                timetables.add(timetable);                              
                        }
                        success = true;
                        
                        
                } catch (Exception e) {
                        Log.e("XmlStationProvider", "lookupStations: ", e);
                }
                return success;

        }

}
1	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.util.Log;
11	import dk.thoerup.traininfo.TimetableBean;
12	import dk.thoerup.traininfo.util.DownloadUtil;
13	import dk.thoerup.traininfo.util.XmlUtil;
14
15	public class XmlTimetableProvider implements TimetableProvider {
16
17	List<TimetableBean> timetables = new ArrayList<TimetableBean>();
18
19	@Override
20	public List<TimetableBean> getTimetable() {
21	return timetables;
22	}
23
24	@Override
25	public boolean lookupTimetable(String trainID) {
26	boolean success = false;
27	String url = XmlUtil.SERVICE_BASE + "/TimetableServlet?train=" + trainID ;
28	Log.i("url", url);
29	try {
30	timetables.clear();
31
32	String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1");
33
34
35	Document doc = XmlUtil.parseXML(xml);
36	Node rootNode = doc.getDocumentElement(); // stations
37	NodeList stationList = rootNode.getChildNodes();
38
39
40	for (int i=0; i<stationList.getLength(); i++) {
41	Node entryNode = stationList.item(i);
42
43	if (! entryNode.getNodeName().equals("entry"))
44	continue;
45
46	TimetableBean timetable = new TimetableBean();
47
48	NodeList entries = entryNode.getChildNodes();
49	for (int j=0; j<entries.getLength(); j++) {
50	Node current = entries.item(j);
51
52	String content = null;
53	if (current.getFirstChild() != null)
54	content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
55
56	String nodeName = current.getNodeName();
57
58	if (nodeName.equals("station"))
59	timetable.setStation( content );
60
61	if (nodeName.equals("arrival"))
62	timetable.setArrival( content );
63
64	if (nodeName.equals("departure"))
65	timetable.setDeparture( content );
66
67	if (nodeName.equals("current"))
68	timetable.setCurrent( Boolean.parseBoolean(content) );
69
70	}
71	timetables.add(timetable);
72	}
73	success = true;
74
75
76	} catch (Exception e) {
77	Log.e("XmlStationProvider", "lookupStations: ", e);
78	}
79	return success;
80
81	}
82
83	}