traininfoservice/banedk/DepartureFetcher.java

package dk.thoerup.traininfoservice.banedk;


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

import net.sf.jsr107cache.Cache;
import net.sf.jsr107cache.CacheException;
import net.sf.jsr107cache.CacheManager;

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

import com.google.appengine.api.memcache.jsr107cache.GCacheFactory;

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
        }
        Cache cache;
        
        Logger logger = Logger.getLogger(DepartureFetcher.class.getName());     
        
        StationDAO stationDao = new StationDAO();
        
        private boolean useAzureSite;
        private int replyTimeout;
        
        @SuppressWarnings("unchecked")
        public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
                this.replyTimeout = replyTimeout;
                useAzureSite = azureSite;

        Map props = new HashMap();
        props.put(GCacheFactory.EXPIRATION_DELTA_MILLIS, cacheTimeout);        
                
                try {
            cache = CacheManager.getInstance().getCacheFactory().createCache(props);            
        } catch (CacheException e) {
                logger.log(Level.WARNING, "error creating cache", e);
        }

        }
        
        
        public DepartureBean cachedLookupDepartures(int stationID, boolean arrival) throws Exception {
                final String key = "departure:" + stationID + ":" + arrival;
                
                DepartureBean departureBean = (DepartureBean) cache.get(key);
                
                if (departureBean == null) {
                        departureBean = lookupDepartures(stationID,arrival);
                        cache.put(key, departureBean);
                        logger.info("Departure: Cache miss " + key + " !!! "); //remove before production
                } else {
                        Statistics.getInstance().incrementDepartureCacheHits();
                        logger.info("Departure: Cache hit " + key); 
                }
                
                return departureBean;
        }
                

        public DepartureBean lookupDepartures(int stationID, boolean arrival) throws Exception {
                
                DepartureBean departureBean = new DepartureBean();
                
                StationEntry station = stationDao.getById(stationID);

                
                departureBean.stationName = station.getName();
                
                if (station.getRegional() != null) {
                        DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
                        departureBean.entries.addAll( tempBean.entries );
                        departureBean.notifications.addAll(tempBean.notifications);
                }
                
                if (station.getStrain() != null) {
                        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.HashMap;
8	import java.util.Map;
9	import java.util.logging.Level;
10	import java.util.logging.Logger;
11
12	import net.sf.jsr107cache.Cache;
13	import net.sf.jsr107cache.CacheException;
14	import net.sf.jsr107cache.CacheManager;
15
16	import org.jsoup.nodes.Document;
17	import org.jsoup.nodes.Element;
18	import org.jsoup.select.Elements;
19
20	import com.google.appengine.api.memcache.jsr107cache.GCacheFactory;
21
22	import dk.thoerup.android.traininfo.common.DepartureBean;
23	import dk.thoerup.android.traininfo.common.DepartureEntry;
24	import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
25	import dk.thoerup.circuitbreaker.CircuitBreaker;
26	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
27	import dk.thoerup.traininfoservice.StationDAO;
28	import dk.thoerup.traininfoservice.Statistics;
29
30	public class DepartureFetcher {
31
32	enum TrainType{
33	STOG,
34	REGIONAL
35	}
36	Cache cache;
37
38	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
39
40	StationDAO stationDao = new StationDAO();
41
42	private boolean useAzureSite;
43	private int replyTimeout;
44
45	@SuppressWarnings("unchecked")
46	public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
47	this.replyTimeout = replyTimeout;
48	useAzureSite = azureSite;
49
50	Map props = new HashMap();
51	props.put(GCacheFactory.EXPIRATION_DELTA_MILLIS, cacheTimeout);
52
53	try {
54	cache = CacheManager.getInstance().getCacheFactory().createCache(props);
55	} catch (CacheException e) {
56	logger.log(Level.WARNING, "error creating cache", e);
57	}
58
59	}
60
61
62
63
64	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival) throws Exception {
65	final String key = "departure:" + stationID + ":" + arrival;
66
67	DepartureBean departureBean = (DepartureBean) cache.get(key);
68
69	if (departureBean == null) {
70	departureBean = lookupDepartures(stationID,arrival);
71	cache.put(key, departureBean);
72	logger.info("Departure: Cache miss " + key + " !!! "); //remove before production
73	} else {
74	Statistics.getInstance().incrementDepartureCacheHits();
75	logger.info("Departure: Cache hit " + key);
76	}
77
78	return departureBean;
79	}
80
81
82	public DepartureBean lookupDepartures(int stationID, boolean arrival) throws Exception {
83
84	DepartureBean departureBean = new DepartureBean();
85
86	StationEntry station = stationDao.getById(stationID);
87
88
89	departureBean.stationName = station.getName();
90
91	if (station.getRegional() != null) {
92	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
93	departureBean.entries.addAll( tempBean.entries );
94	departureBean.notifications.addAll(tempBean.notifications);
95	}
96
97	if (station.getStrain() != null) {
98	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
99	departureBean.entries.addAll( tempBean.entries );
100	departureBean.notifications.addAll(tempBean.notifications);
101	}
102
103	if (departureBean.entries.size() == 0) {
104	logger.info("No departures found for station " + stationID);
105	}
106
107	Collections.sort( departureBean.entries );
108
109
110	return departureBean;
111	}
112
113	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
114	if (useAzureSite == true) {
115	return lookupDeparturesAzureSite(stationcode, type, arrival);
116	} else {
117	return lookupDeparturesWwwSite(stationcode, type, arrival);
118	}
119	}
120
121	private String getTypeStringAzure(TrainType type) {
122	switch (type) {
123	case STOG:
124	return "S-Tog";
125	case REGIONAL:
126	return "Fjerntog";
127	default:
128	return ""; //Can not happen
129	}
130	}
131
132	private String getTypeStringWww(TrainType type) {
133	switch (type) {
134	case STOG:
135	return "S2";
136	case REGIONAL:
137	return "FJRN";
138	default:
139	return ""; //Can not happen
140	}
141	}
142
143	public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
144
145	DepartureBean departureBean = new DepartureBean();
146
147
148	String typeString = getTypeStringAzure(type);
149	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
150
151	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
152
153	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
154
155	logger.fine("URI: " + uri);
156	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
157	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
158
159	Document page = (Document) breaker.invoke(wrapper);
160
161	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
162	Element table = page.getElementById(tableName);
163
164	if (table != null) {
165	Elements tableRows = table.getElementsByTag("tr");
166
167	boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
168	boolean passedTidsstreg = false;
169
170	for (Element currentRow : tableRows) {
171	String rowClass = currentRow.attr("class");
172
173	if (tidsstregExists == true && passedTidsstreg == false) {
174	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
175	passedTidsstreg = true;
176	} else {
177	continue;
178	}
179	}
180
181	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
182
183	Elements fields = currentRow.getElementsByTag("td");
184
185	DepartureEntry departure = new DepartureEntry();
186
187	String time = fields.get(0).text();
188	if (time.equals(""))
189	time = "0:00"; //Bane.dk bug work-around
190	departure.setTime(time);
191
192	int updated = extractUpdated( fields.get(1) );
193	departure.setUpdated(updated);
194
195	String trainNumber = fields.get(2).text();
196	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
197	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
198	departure.setTrainNumber(trainNumber);
199
200	String destination = fields.get(3).text();
201	departure.setDestination(destination);
202
203	String origin = fields.get(4).text();
204	departure.setOrigin(origin);
205
206	String location = fields.get(5).text();
207	departure.setLocation(location);
208
209	String status = fields.get(6).text().trim();
210	departure.setStatus(status);
211
212	String note = extractNote( fields.get(7) );
213	departure.setNote(note);
214
215	departure.setType(typeString);
216
217	departureBean.entries.add( departure );
218	}
219	}
220	} else {
221	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
222	}
223
224	Element notifDiv = page.getElementById("station_planlagte_text");
225	if (notifDiv != null) {
226
227	Elements tables = notifDiv.getElementsByTag("table");
228	for (Element tab : tables) {
229
230	Elements anchors = tab.getElementsByTag("a");
231	if (anchors.size() == 2) {
232	departureBean.notifications.add( anchors.get(1).text() );
233	}
234	}
235
236	}
237
238
239	return departureBean;
240	}
241
242
243
244	public static String cleanText(String input) {
245	//apparently JSoup translates   characters on www.bane.dk to 0xA0
246	return input.replace((char) 0xA0, (char)0x20).trim();
247	}
248
249	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
250
251	DepartureBean departureBean = new DepartureBean();
252
253	String type = getTypeStringWww(trainType);
254
255	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
256
257
258	String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
259	logger.fine("URI:" + uri);
260
261
262	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
263	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
264
265	Element page = (Element) breaker.invoke(wrapper);
266
267	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
268	Element table = page.getElementById(tableName);
269
270
271
272	if (table != null) {
273	Elements tableRows = table.getElementsByTag("tr");
274
275	boolean passedTidsstreg = false;
276	boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
277
278	for (Element currentRow : tableRows) {
279	String rowClass = currentRow.attr("class");
280
281	if (tidsstregExists == true && passedTidsstreg == false) {
282	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
283	passedTidsstreg = true;
284	} else {
285	continue;
286	}
287	}
288
289
290	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
291	Elements fields = currentRow.getElementsByTag("td");
292
293	DepartureEntry departure = new DepartureEntry();
294
295
296
297	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
298	if (time.equals(""))
299	time = "0:00"; //Bane.dk bug work-around
300	departure.setTime(time);
301
302	int updated = extractUpdated( fields.get(1) );
303	departure.setUpdated(updated);
304
305	String trainNumber = cleanText( fields.get(2).text() );
306	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
307	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
308	departure.setTrainNumber(trainNumber);
309
310	String destination = cleanText( fields.get(3).text() );
311	departure.setDestination(destination);
312
313	String origin = cleanText( fields.get(4).text() );
314	departure.setOrigin(origin);
315
316	String location = cleanText( fields.get(5).text() );
317	departure.setLocation(location);
318
319	String status = cleanText( fields.get(6).text() );
320	departure.setStatus(status);
321
322	String note = cleanText( extractNote( fields.get(7) ) );
323	departure.setNote(note);
324
325	departure.setType(type);
326
327	departureBean.entries.add(departure);
328
329
330	}
331	}
332	} else {
333	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
334	}
335
336
337	return departureBean;
338	}
339
340
341	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
342	int updated = -1;
343
344	Elements updatedImgs = updatedTd.getElementsByTag("img");
345	String updatedStr = updatedImgs.get(0).attr("src");
346
347	if (updatedStr != null) {
348	for (int i=0; i<updatedStr.length(); i++) {
349	char c = updatedStr.charAt(i);
350	if ( Character.isDigit(c)) {
351	updated = Character.digit(c, 10);
352	break;
353	}
354	}
355	}
356	return updated;
357	}
358
359	private String extractNote(Element noteTd) {
360	String note = noteTd.text().trim();
361
362
363	Elements elems = noteTd.getElementsByClass("bemtype");
364	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
365	note = note.substring(0,note.length() -1 );
366
367	return note.trim();
368	}
369
370	private String extractTrainNumberAzure(Element trainTd) {
371	Element anchorElement = trainTd.getElementsByTag("a").get(0);
372	String href = anchorElement.attr("href");
373
374	int pos = href.lastIndexOf('/');
375	String number = href.substring(pos+1);
376
377	return number;
378	}
379
380	private String extractTrainNumberWww(Element trainTd) {
381	String number = "";
382	Element anchorElement = trainTd.getElementsByTag("a").get(0);
383	String href = anchorElement.attr("href");
384	String argstring = href.substring( href.indexOf('?') + 1);
385
386	String args[] = argstring.split("&");
387	for (String arg : args) {
388	String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
389
390	if (pair[0].equalsIgnoreCase("TogNr"))
391	number = pair[1];
392	}
393
394
395	return number;
396	}
397
398
399	//test
400	/*
401	public static void main(String args[]) throws Exception {
402	DepartureFetcher f = new DepartureFetcher();
403	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
404	for(DepartureBean d : deps) {
405	System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
406	d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
407	}
408
409	System.out.println("--------------------------");
410	}*/
411	}