traininfoservice/banedk/TimetableFetcher.java

package dk.thoerup.traininfoservice.banedk;


import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;

import com.gargoylesoftware.htmlunit.*;
import com.gargoylesoftware.htmlunit.html.*;

public class TimetableFetcher {
        
        class NullRefreshHandler implements RefreshHandler {
                public void handleRefresh(Page arg0, URL arg1, int arg2) throws IOException {                   
                }
                
        }
        
        Logger logger = Logger.getLogger(TimetableFetcher.class.getName());

        List<TimetableBean> lookupTimetable(String trainID, String type) throws Exception {
                List<TimetableBean> timetableList = new ArrayList<TimetableBean>();
                
                String url = "http://www.bane.dk/visRute.asp?W=" + type + "&TogNr=" + trainID + "&artikelId=4276";
                                

            final WebClient webClient = new WebClient();
            webClient.setTimeout(2500);
            webClient.setJavaScriptEnabled(false);         
            webClient.setRefreshHandler( new NullRefreshHandler() );
            webClient.setCssEnabled(false);
            
            
            final HtmlPage page = webClient.getPage(url);
            
            
            boolean currentStation = false;
            boolean currentStationSaved = false;
            
            List<HtmlElement> tables = page.getDocumentElement().getElementsByAttribute("table", "class", "Rute");
            if (tables.size() == 1) {
                HtmlElement timetable = tables.get(0);
                DomNodeList<HtmlElement> rows = timetable.getElementsByTagName("tr");
                
                for (int i=0; i<rows.size(); i++) {
                        if (i==0) //First row is column headers
                                continue;
                        
                        
                        HtmlElement row = rows.get(i);
                        DomNodeList<HtmlElement> fields = row.getElementsByTagName("td");
                        
                        if (currentStationSaved == false && fields.get(0).getAttribute("class").equalsIgnoreCase("Tidsstreg")) {
                                currentStation = true;
                                continue;
                        }
                        
                        TimetableBean bean = new TimetableBean();
                        bean.setStation( fields.get(0).asText() );
                        bean.setArrival( fields.get(1).asText() );
                        bean.setDeparture( fields.get(2).asText() );
                        
                        if (currentStation == true && currentStationSaved == false ) {
                                bean.setCurrent(currentStation);
                                currentStationSaved = true;
                        }
                        
                        timetableList.add(bean);

                }
                
            } else {
                logger.warning("No time table found, trainID=" + trainID + " type=" + type);
            }
                
                return timetableList;
        }
        
}
1	package dk.thoerup.traininfoservice.banedk;
2
3
4	import java.io.IOException;
5	import java.net.URL;
6	import java.util.ArrayList;
7	import java.util.List;
8	import java.util.logging.Logger;
9
10	import com.gargoylesoftware.htmlunit.*;
11	import com.gargoylesoftware.htmlunit.html.*;
12
13	public class TimetableFetcher {
14
15	class NullRefreshHandler implements RefreshHandler {
16	public void handleRefresh(Page arg0, URL arg1, int arg2) throws IOException {
17	}
18
19	}
20
21	Logger logger = Logger.getLogger(TimetableFetcher.class.getName());
22
23	List<TimetableBean> lookupTimetable(String trainID, String type) throws Exception {
24	List<TimetableBean> timetableList = new ArrayList<TimetableBean>();
25
26	String url = "http://www.bane.dk/visRute.asp?W=" + type + "&TogNr=" + trainID + "&artikelId=4276";
27
28
29	final WebClient webClient = new WebClient();
30	webClient.setTimeout(2500);
31	webClient.setJavaScriptEnabled(false);
32	webClient.setRefreshHandler( new NullRefreshHandler() );
33	webClient.setCssEnabled(false);
34
35
36	final HtmlPage page = webClient.getPage(url);
37
38
39	boolean currentStation = false;
40	boolean currentStationSaved = false;
41
42	List<HtmlElement> tables = page.getDocumentElement().getElementsByAttribute("table", "class", "Rute");
43	if (tables.size() == 1) {
44	HtmlElement timetable = tables.get(0);
45	DomNodeList<HtmlElement> rows = timetable.getElementsByTagName("tr");
46
47	for (int i=0; i<rows.size(); i++) {
48	if (i==0) //First row is column headers
49	continue;
50
51
52	HtmlElement row = rows.get(i);
53	DomNodeList<HtmlElement> fields = row.getElementsByTagName("td");
54
55	if (currentStationSaved == false && fields.get(0).getAttribute("class").equalsIgnoreCase("Tidsstreg")) {
56	currentStation = true;
57	continue;
58	}
59
60	TimetableBean bean = new TimetableBean();
61	bean.setStation( fields.get(0).asText() );
62	bean.setArrival( fields.get(1).asText() );
63	bean.setDeparture( fields.get(2).asText() );
64
65	if (currentStation == true && currentStationSaved == false ) {
66	bean.setCurrent(currentStation);
67	currentStationSaved = true;
68	}
69
70	timetableList.add(bean);
71
72	}
73
74	} else {
75	logger.warning("No time table found, trainID=" + trainID + " type=" + type);
76	}
77
78	return timetableList;
79	}
80
81	}