traininfo/provider/XmlStationProvider.java

package dk.thoerup.traininfo.provider;

import java.net.URI;
import java.net.URLEncoder;
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.net.Uri;
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) {
                String url = XmlUtil.SERVICE_BASE + "/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
                Log.i("url", url);
                return lookupStationsWorker(url);
        }
        
        @Override
        public boolean lookupStations(String name) {            
                
        //      String url = XmlUtil.SERVICE_BASE + "/LocateStations?name=" + Uri.encode(name);
                String url = "";
                
                try {
                        url = XmlUtil.SERVICE_BASE + "/LocateStations?name=" + URLEncoder.encode(name, "ISO8859-1");    
                } catch (Exception e) {
                        Log.e("lookupStations", "Encoding failed", e);
                }
                
                Log.i("url", url);
                return lookupStationsWorker(url);
        }
        
        
        public boolean lookupStationsWorker(String url) {
                boolean success = false;

                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	package dk.thoerup.traininfo.provider;
2
3	import java.net.URI;
4	import java.net.URLEncoder;
5	import java.util.ArrayList;
6	import java.util.List;
7
8	import org.w3c.dom.Document;
9	import org.w3c.dom.Node;
10	import org.w3c.dom.NodeList;
11
12	import android.location.Location;
13	import android.net.Uri;
14	import android.util.Log;
15	import dk.thoerup.traininfo.StationBean;
16	import dk.thoerup.traininfo.util.DownloadUtil;
17	import dk.thoerup.traininfo.util.XmlUtil;
18
19	public class XmlStationProvider implements StationProvider {
20
21	List<StationBean> stations = new ArrayList<StationBean>();
22
23
24	@Override
25	public List<StationBean> getStations() {
26	return stations;
27	}
28
29
30	@Override
31	public boolean lookupStations(Location location) {
32	String url = XmlUtil.SERVICE_BASE + "/LocateStations?latitude=" + location.getLatitude() + "&longitude=" + location.getLongitude();
33	Log.i("url", url);
34	return lookupStationsWorker(url);
35	}
36
37	@Override
38	public boolean lookupStations(String name) {
39
40	// String url = XmlUtil.SERVICE_BASE + "/LocateStations?name=" + Uri.encode(name);
41	String url = "";
42
43	try {
44	url = XmlUtil.SERVICE_BASE + "/LocateStations?name=" + URLEncoder.encode(name, "ISO8859-1");
45	} catch (Exception e) {
46	Log.e("lookupStations", "Encoding failed", e);
47	}
48
49	Log.i("url", url);
50	return lookupStationsWorker(url);
51	}
52
53
54	public boolean lookupStationsWorker(String url) {
55	boolean success = false;
56
57	try {
58	stations.clear();
59
60	String xml = DownloadUtil.getContentString(url, 15000, "ISO-8859-1");
61
62
63	Document doc = XmlUtil.parseXML(xml);
64	Node rootNode = doc.getDocumentElement(); // stations
65	NodeList stationList = rootNode.getChildNodes();
66
67
68	for (int i=0; i<stationList.getLength(); i++) {
69	Node stationNode = stationList.item(i);
70
71	if (! stationNode.getNodeName().equals("station"))
72	continue;
73
74	StationBean station = new StationBean();
75
76	NodeList stationElements = stationNode.getChildNodes();
77	for (int j=0; j<stationElements.getLength(); j++) {
78	Node current = stationElements.item(j);
79
80	String content = null;
81	if (current.getFirstChild() != null)
82	content = current.getFirstChild().getNodeValue(); //get the textNode - then get the text node's value
83
84	String nodeName = current.getNodeName();
85
86	if (nodeName.equals("id"))
87	station.setId( Integer.parseInt(content));
88
89	if (nodeName.equals("name"))
90	station.setName(content);
91
92	if (nodeName.equals("latitude"))
93	station.setLatitude( Double.parseDouble(content) );
94
95	if (nodeName.equals("longitude"))
96	station.setLongitude( Double.parseDouble(content) );
97
98	if (nodeName.equals("stationcode"))
99	station.setCode(content);
100
101	if (nodeName.equals("calcdist"))
102	station.setDistance( (int) Double.parseDouble(content) );
103
104	}
105	stations.add(station);
106	}
107	success = true;
108
109
110	} catch (Exception e) {
111	Log.e("XmlStationProvider", "lookupStations: ", e);
112	}
113	return success;
114	}
115	}