traininfoservice/banedk/DepartureFetcher.java

package dk.thoerup.traininfoservice.banedk;


import java.net.URL;
import java.net.URLEncoder;
import java.util.Collections;
import java.util.Map;
import java.util.logging.Logger;

import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import dk.thoerup.android.traininfo.common.DepartureBean;
import dk.thoerup.android.traininfo.common.DepartureEntry;
import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
import dk.thoerup.circuitbreaker.CircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;
import dk.thoerup.traininfoservice.StationDAO;
import dk.thoerup.traininfoservice.Statistics;

public class DepartureFetcher {
        
        enum TrainType{
                STOG,
                REGIONAL
        }
        
        enum FetchTrainType {
                STOG,
                REGIONAL,
                BOTH
        }
        
        Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
        
        Map<String, DepartureBean> cache;
        
        StationDAO stationDao = new StationDAO();
        
        private boolean useAzureSite;
        private int replyTimeout;
        
        public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
                this.replyTimeout = replyTimeout;
                useAzureSite = azureSite;
                cache = new TimeoutMap<String,DepartureBean>(cacheTimeout);
        }
        
        
        public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
                
                final String key = "" + stationID + ":" + arrival + ":" + type.toString();
                
                DepartureBean departureBean = cache.get(key);

                
                if (departureBean == null) {
                        departureBean = lookupDepartures(stationID, arrival, type);
                        cache.put(key, departureBean);
                } else {
                        Statistics.getInstance().incrementDepartureCacheHits();
                        logger.info("Departure: Cache hit " + key); //remove before production
                }
                return departureBean;
        }
                

        public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
                
                DepartureBean departureBean = new DepartureBean();
                
                StationEntry station = stationDao.getById(stationID);
                
                departureBean.stationName = station.getName();
                
                if (station.getRegional() != null && (type == FetchTrainType.REGIONAL||type == FetchTrainType.BOTH) ) {
                        DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
                        departureBean.entries.addAll( tempBean.entries );
                        departureBean.notifications.addAll(tempBean.notifications);
                }
                
                if (station.getStrain() != null && (type == FetchTrainType.STOG||type == FetchTrainType.BOTH)) {
                        DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
                        departureBean.entries.addAll( tempBean.entries );
                        departureBean.notifications.addAll(tempBean.notifications);
                }               
                
                if (departureBean.entries.size() == 0) {
                        logger.info("No departures found for station " + stationID);
                }
                
                Collections.sort( departureBean.entries );

                
                return departureBean;
        }
        
        public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
                if (useAzureSite == true) {
                        return lookupDeparturesAzureSite(stationcode, type, arrival);
                } else { 
                        return lookupDeparturesWwwSite(stationcode, type, arrival);
                }
        }
        
        private String getTypeStringAzure(TrainType type) {
                switch (type) {
                case STOG:
                        return "S-Tog";
                case REGIONAL:
                        return "Fjerntog";
                default:
                        return ""; //Can not happen
                }
        }
        
        private String getTypeStringWww(TrainType type) {
                switch (type) {
                case STOG:
                        return "S2";
                case REGIONAL:
                        return "FJRN";
                default:
                        return ""; //Can not happen
                }
        }
        
        public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
                
                DepartureBean departureBean = new DepartureBean();
                 
            
            String typeString = getTypeStringAzure(type);
            String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst"; 
            
            stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");

            String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";        
            
            logger.fine("URI: " + uri);     
            JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
            CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
            
            Document page = (Document) breaker.invoke(wrapper);
            
            String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
            Element table = page.getElementById(tableName);
            
            if (table != null) {
                    Elements tableRows =  table.getElementsByTag("tr");
                    
                    //boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0); 
                    //boolean passedTidsstreg = false;
                    
                    for (Element currentRow : tableRows) {
                        String rowClass = currentRow.attr("class");
                        /*
                        if (tidsstregExists == true && passedTidsstreg == false) {
                                if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
                                        passedTidsstreg = true;
                                } else {
                                        continue;
                                }
                        }*/
                        
                        if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
                                
                                Elements fields = currentRow.getElementsByTag("td");
        
                                DepartureEntry departure = new DepartureEntry();
                                
                                String time = fields.get(0).text();
                                if (time.equals(""))
                                        time = "0:00"; //Bane.dk bug work-around
                                departure.setTime(time);
                                
                                int updated = extractUpdated( fields.get(1) );
                                departure.setUpdated(updated);
                                
                                String trainNumber = fields.get(2).text();
                                if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber 
                                        trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
                                departure.setTrainNumber(trainNumber);
                                
                                String destination = fields.get(3).text();
                                departure.setDestination(destination);
                                
                                String origin = fields.get(4).text();
                                departure.setOrigin(origin);
                                
                                String location = fields.get(5).text();
                                departure.setLocation(location);
                                
                                String status = fields.get(6).text().trim();
                                departure.setStatus(status);
                                
                                String note = extractNote( fields.get(7) );
                                departure.setNote(note);
                                
                                departure.setType(typeString);
                                
                                departureBean.entries.add( departure );
                        }
                    }
            } else {
                logger.warning("No departures found for station=" + stationcode + ", type=" + type);
            }
            
            Element notifDiv = page.getElementById("station_planlagte_text");
            if (notifDiv != null) {

                Elements tables = notifDiv.getElementsByTag("table");
                for (Element tab : tables) {

                        Elements anchors = tab.getElementsByTag("a");           
                        if (anchors.size() == 2) {
                                departureBean.notifications.add(  anchors.get(1).text() );
                        }
                }
                
            }
            
            
            return departureBean;
        }
        
        
        public static String cleanText(String input) {
                //apparently JSoup translates &nbsp; characters on www.bane.dk to 0xA0 
                return input.replace((char) 0xA0, (char)0x20).trim();
        }
        
        public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
                
                DepartureBean departureBean = new DepartureBean();
                
                String type = getTypeStringWww(trainType);
                
                stationcode = URLEncoder.encode(stationcode, "ISO-8859-1"); 
                
                                            
            String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
            logger.fine("URI:" + uri);
            

            JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout); 
            CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
            
            Element page = (Element) breaker.invoke(wrapper);
            
            String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
            Element table = page.getElementById(tableName);
            

            if (table != null) {
                    Elements tableRows =  table.getElementsByTag("tr");
                    
                    //boolean passedTidsstreg = false;
                    //boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
                    
                    for (Element currentRow : tableRows) {
                        String rowClass = currentRow.attr("class");
                        /*
                        if (tidsstregExists == true && passedTidsstreg == false) {
                                if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
                                        passedTidsstreg = true;
                                } else {
                                        continue;
                                }
                        }*/
                        
                        
                        if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
                                Elements fields = currentRow.getElementsByTag("td");
        
                                DepartureEntry departure = new DepartureEntry();
                                

                                String time = cleanText( fields.get(0).getAllElements().get(2).text() );
                                if (time.equals(""))
                                        time = "0:00"; //Bane.dk bug work-around
                                departure.setTime(time);
                                
                                int updated = extractUpdated( fields.get(1) );
                                departure.setUpdated(updated);
                                
                                String trainNumber = cleanText( fields.get(2).text() );
                                if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber 
                                        trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
                                departure.setTrainNumber(trainNumber);
                                
                                String destination = cleanText( fields.get(3).text() );
                                departure.setDestination(destination);
                                
                                String origin = cleanText( fields.get(4).text() );
                                departure.setOrigin(origin);
                                
                                String location = cleanText( fields.get(5).text() );
                                departure.setLocation(location);
                                
                                String status = cleanText( fields.get(6).text() );
                                departure.setStatus(status);
                                
                                String note = cleanText( extractNote( fields.get(7) ) );
                                departure.setNote(note);
                                
                                departure.setType(type);
                                
                                departureBean.entries.add(departure);
                                
                                
                        }
                    }
            } else {
                logger.warning("No departures found for station=" + stationcode + ", type=" + type);
            }
            
            
            return departureBean;
        }
                
        
        private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif" 
                int updated = -1;
                
                Elements updatedImgs = updatedTd.getElementsByTag("img");
                String updatedStr = updatedImgs.get(0).attr("src");
                
                if (updatedStr != null) {
                        for (int i=0; i<updatedStr.length(); i++) {
                                char c = updatedStr.charAt(i);
                                if ( Character.isDigit(c))  {
                                        updated = Character.digit(c, 10);
                                        break;
                                }
                        }
                }               
                return updated;
        }
        
        private String extractNote(Element noteTd) {
                String note = noteTd.text().trim();
                
                
                Elements elems = noteTd.getElementsByClass("bemtype");
                if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
                        note = note.substring(0,note.length() -1 );

                return note.trim();
        }
        
        private String extractTrainNumberAzure(Element trainTd) {
                Element anchorElement = trainTd.getElementsByTag("a").get(0);
                String href = anchorElement.attr("href");
                
                int pos = href.lastIndexOf('/');
                String number = href.substring(pos+1);
                
                return number;
        }
        
        private String extractTrainNumberWww(Element trainTd) {
                String number = "";
                Element anchorElement = trainTd.getElementsByTag("a").get(0);
                String href = anchorElement.attr("href");
                String argstring = href.substring( href.indexOf('?') + 1);
                
                String args[] = argstring.split("&");
                for (String arg : args) {
                        String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
                        
                        if (pair[0].equalsIgnoreCase("TogNr"))
                                number = pair[1];
                }
                
                
                return number;
        }

        
        //test
        /*
        public static void main(String args[]) throws Exception {
                DepartureFetcher f = new DepartureFetcher();
                List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
                for(DepartureBean d : deps) {
                        System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" + 
                                                d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote()   );
                }
                
                System.out.println("--------------------------");
        }*/
}
1	package dk.thoerup.traininfoservice.banedk;
2
3
4	import java.net.URL;
5	import java.net.URLEncoder;
6	import java.util.Collections;
7	import java.util.Map;
8	import java.util.logging.Logger;
9
10	import org.jsoup.nodes.Document;
11	import org.jsoup.nodes.Element;
12	import org.jsoup.select.Elements;
13
14	import dk.thoerup.android.traininfo.common.DepartureBean;
15	import dk.thoerup.android.traininfo.common.DepartureEntry;
16	import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
17	import dk.thoerup.circuitbreaker.CircuitBreaker;
18	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
19	import dk.thoerup.traininfoservice.StationDAO;
20	import dk.thoerup.traininfoservice.Statistics;
21
22	public class DepartureFetcher {
23
24	enum TrainType{
25	STOG,
26	REGIONAL
27	}
28
29	enum FetchTrainType {
30	STOG,
31	REGIONAL,
32	BOTH
33	}
34
35	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
36
37	Map<String, DepartureBean> cache;
38
39	StationDAO stationDao = new StationDAO();
40
41	private boolean useAzureSite;
42	private int replyTimeout;
43
44	public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
45	this.replyTimeout = replyTimeout;
46	useAzureSite = azureSite;
47	cache = new TimeoutMap<String,DepartureBean>(cacheTimeout);
48	}
49
50
51
52
53	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
54
55	final String key = "" + stationID + ":" + arrival + ":" + type.toString();
56
57	DepartureBean departureBean = cache.get(key);
58
59
60	if (departureBean == null) {
61	departureBean = lookupDepartures(stationID, arrival, type);
62	cache.put(key, departureBean);
63	} else {
64	Statistics.getInstance().incrementDepartureCacheHits();
65	logger.info("Departure: Cache hit " + key); //remove before production
66	}
67	return departureBean;
68	}
69
70
71	public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
72
73	DepartureBean departureBean = new DepartureBean();
74
75	StationEntry station = stationDao.getById(stationID);
76
77	departureBean.stationName = station.getName();
78
79	if (station.getRegional() != null && (type == FetchTrainType.REGIONAL\|\|type == FetchTrainType.BOTH) ) {
80	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
81	departureBean.entries.addAll( tempBean.entries );
82	departureBean.notifications.addAll(tempBean.notifications);
83	}
84
85	if (station.getStrain() != null && (type == FetchTrainType.STOG\|\|type == FetchTrainType.BOTH)) {
86	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
87	departureBean.entries.addAll( tempBean.entries );
88	departureBean.notifications.addAll(tempBean.notifications);
89	}
90
91	if (departureBean.entries.size() == 0) {
92	logger.info("No departures found for station " + stationID);
93	}
94
95	Collections.sort( departureBean.entries );
96
97
98	return departureBean;
99	}
100
101	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
102	if (useAzureSite == true) {
103	return lookupDeparturesAzureSite(stationcode, type, arrival);
104	} else {
105	return lookupDeparturesWwwSite(stationcode, type, arrival);
106	}
107	}
108
109	private String getTypeStringAzure(TrainType type) {
110	switch (type) {
111	case STOG:
112	return "S-Tog";
113	case REGIONAL:
114	return "Fjerntog";
115	default:
116	return ""; //Can not happen
117	}
118	}
119
120	private String getTypeStringWww(TrainType type) {
121	switch (type) {
122	case STOG:
123	return "S2";
124	case REGIONAL:
125	return "FJRN";
126	default:
127	return ""; //Can not happen
128	}
129	}
130
131	public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
132
133	DepartureBean departureBean = new DepartureBean();
134
135
136	String typeString = getTypeStringAzure(type);
137	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
138
139	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
140
141	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
142
143	logger.fine("URI: " + uri);
144	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
145	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
146
147	Document page = (Document) breaker.invoke(wrapper);
148
149	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
150	Element table = page.getElementById(tableName);
151
152	if (table != null) {
153	Elements tableRows = table.getElementsByTag("tr");
154
155	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
156	//boolean passedTidsstreg = false;
157
158	for (Element currentRow : tableRows) {
159	String rowClass = currentRow.attr("class");
160	/*
161	if (tidsstregExists == true && passedTidsstreg == false) {
162	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
163	passedTidsstreg = true;
164	} else {
165	continue;
166	}
167	}*/
168
169	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
170
171	Elements fields = currentRow.getElementsByTag("td");
172
173	DepartureEntry departure = new DepartureEntry();
174
175	String time = fields.get(0).text();
176	if (time.equals(""))
177	time = "0:00"; //Bane.dk bug work-around
178	departure.setTime(time);
179
180	int updated = extractUpdated( fields.get(1) );
181	departure.setUpdated(updated);
182
183	String trainNumber = fields.get(2).text();
184	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
185	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
186	departure.setTrainNumber(trainNumber);
187
188	String destination = fields.get(3).text();
189	departure.setDestination(destination);
190
191	String origin = fields.get(4).text();
192	departure.setOrigin(origin);
193
194	String location = fields.get(5).text();
195	departure.setLocation(location);
196
197	String status = fields.get(6).text().trim();
198	departure.setStatus(status);
199
200	String note = extractNote( fields.get(7) );
201	departure.setNote(note);
202
203	departure.setType(typeString);
204
205	departureBean.entries.add( departure );
206	}
207	}
208	} else {
209	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
210	}
211
212	Element notifDiv = page.getElementById("station_planlagte_text");
213	if (notifDiv != null) {
214
215	Elements tables = notifDiv.getElementsByTag("table");
216	for (Element tab : tables) {
217
218	Elements anchors = tab.getElementsByTag("a");
219	if (anchors.size() == 2) {
220	departureBean.notifications.add( anchors.get(1).text() );
221	}
222	}
223
224	}
225
226
227	return departureBean;
228	}
229
230
231
232	public static String cleanText(String input) {
233	//apparently JSoup translates   characters on www.bane.dk to 0xA0
234	return input.replace((char) 0xA0, (char)0x20).trim();
235	}
236
237	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
238
239	DepartureBean departureBean = new DepartureBean();
240
241	String type = getTypeStringWww(trainType);
242
243	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
244
245
246	String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
247	logger.fine("URI:" + uri);
248
249
250	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
251	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
252
253	Element page = (Element) breaker.invoke(wrapper);
254
255	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
256	Element table = page.getElementById(tableName);
257
258
259
260	if (table != null) {
261	Elements tableRows = table.getElementsByTag("tr");
262
263	//boolean passedTidsstreg = false;
264	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
265
266	for (Element currentRow : tableRows) {
267	String rowClass = currentRow.attr("class");
268	/*
269	if (tidsstregExists == true && passedTidsstreg == false) {
270	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
271	passedTidsstreg = true;
272	} else {
273	continue;
274	}
275	}*/
276
277
278	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
279	Elements fields = currentRow.getElementsByTag("td");
280
281	DepartureEntry departure = new DepartureEntry();
282
283
284
285	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
286	if (time.equals(""))
287	time = "0:00"; //Bane.dk bug work-around
288	departure.setTime(time);
289
290	int updated = extractUpdated( fields.get(1) );
291	departure.setUpdated(updated);
292
293	String trainNumber = cleanText( fields.get(2).text() );
294	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
295	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
296	departure.setTrainNumber(trainNumber);
297
298	String destination = cleanText( fields.get(3).text() );
299	departure.setDestination(destination);
300
301	String origin = cleanText( fields.get(4).text() );
302	departure.setOrigin(origin);
303
304	String location = cleanText( fields.get(5).text() );
305	departure.setLocation(location);
306
307	String status = cleanText( fields.get(6).text() );
308	departure.setStatus(status);
309
310	String note = cleanText( extractNote( fields.get(7) ) );
311	departure.setNote(note);
312
313	departure.setType(type);
314
315	departureBean.entries.add(departure);
316
317
318	}
319	}
320	} else {
321	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
322	}
323
324
325	return departureBean;
326	}
327
328
329	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
330	int updated = -1;
331
332	Elements updatedImgs = updatedTd.getElementsByTag("img");
333	String updatedStr = updatedImgs.get(0).attr("src");
334
335	if (updatedStr != null) {
336	for (int i=0; i<updatedStr.length(); i++) {
337	char c = updatedStr.charAt(i);
338	if ( Character.isDigit(c)) {
339	updated = Character.digit(c, 10);
340	break;
341	}
342	}
343	}
344	return updated;
345	}
346
347	private String extractNote(Element noteTd) {
348	String note = noteTd.text().trim();
349
350
351	Elements elems = noteTd.getElementsByClass("bemtype");
352	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
353	note = note.substring(0,note.length() -1 );
354
355	return note.trim();
356	}
357
358	private String extractTrainNumberAzure(Element trainTd) {
359	Element anchorElement = trainTd.getElementsByTag("a").get(0);
360	String href = anchorElement.attr("href");
361
362	int pos = href.lastIndexOf('/');
363	String number = href.substring(pos+1);
364
365	return number;
366	}
367
368	private String extractTrainNumberWww(Element trainTd) {
369	String number = "";
370	Element anchorElement = trainTd.getElementsByTag("a").get(0);
371	String href = anchorElement.attr("href");
372	String argstring = href.substring( href.indexOf('?') + 1);
373
374	String args[] = argstring.split("&");
375	for (String arg : args) {
376	String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
377
378	if (pair[0].equalsIgnoreCase("TogNr"))
379	number = pair[1];
380	}
381
382
383	return number;
384	}
385
386
387	//test
388	/*
389	public static void main(String args[]) throws Exception {
390	DepartureFetcher f = new DepartureFetcher();
391	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
392	for(DepartureBean d : deps) {
393	System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
394	d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
395	}
396
397	System.out.println("--------------------------");
398	}*/
399	}