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();
                
                //TODO: debug code
                StationEntry station = new StationEntry(); // stationDao.getById(stationID);
                station.setId(82);
                station.setName("Test Station");
                station.setRegional("HS");
                //TODO: end of debug code
                
                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	torben	305	package dk.thoerup.traininfoservice.banedk;
2
3	torben	978
4	torben	992	import java.net.URL;
5	torben	994	import java.net.URLEncoder;
6	torben	307	import java.util.Collections;
7	torben	1093	import java.util.HashMap;
8	torben	428	import java.util.Map;
9	torben	1093	import java.util.logging.Level;
10	torben	348	import java.util.logging.Logger;
11	torben	305
12	torben	1093	import net.sf.jsr107cache.Cache;
13			import net.sf.jsr107cache.CacheException;
14			import net.sf.jsr107cache.CacheManager;
15
16	torben	992	import org.jsoup.nodes.Document;
17			import org.jsoup.nodes.Element;
18			import org.jsoup.select.Elements;
19	torben	305
20	torben	1093	import com.google.appengine.api.memcache.jsr107cache.GCacheFactory;
21
22	torben	1061	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	torben	468	import dk.thoerup.circuitbreaker.CircuitBreaker;
26			import dk.thoerup.circuitbreaker.CircuitBreakerManager;
27	torben	588	import dk.thoerup.traininfoservice.StationDAO;
28	torben	711	import dk.thoerup.traininfoservice.Statistics;
29	torben	307
30	torben	305	public class DepartureFetcher {
31	torben	348
32	torben	972	enum TrainType{
33			STOG,
34			REGIONAL
35			}
36	torben	1093	Cache cache;
37	torben	972
38	torben	1093	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
39	torben	387
40	torben	588	StationDAO stationDao = new StationDAO();
41
42	torben	1034	private boolean useAzureSite;
43	torben	1026	private int replyTimeout;
44	torben	580
45	torben	1093	@SuppressWarnings("unchecked")
46	torben	1034	public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
47	torben	1026	this.replyTimeout = replyTimeout;
48	torben	1034	useAzureSite = azureSite;
49	torben	1093
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	torben	580	}
60
61
62	torben	307
63	torben	387
64	torben	978	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival) throws Exception {
65	torben	1093	final String key = "departure:" + stationID + ":" + arrival;
66	torben	980
67	torben	1093	DepartureBean departureBean = (DepartureBean) cache.get(key);
68	torben	387
69	torben	978	if (departureBean == null) {
70			departureBean = lookupDepartures(stationID,arrival);
71			cache.put(key, departureBean);
72	torben	1093	logger.info("Departure: Cache miss " + key + " !!! "); //remove before production
73	torben	387	} else {
74	torben	711	Statistics.getInstance().incrementDepartureCacheHits();
75	torben	1093	logger.info("Departure: Cache hit " + key);
76	torben	387	}
77	torben	1093
78	torben	980	return departureBean;
79	torben	387	}
80
81
82	torben	978	public DepartureBean lookupDepartures(int stationID, boolean arrival) throws Exception {
83	torben	307
84	torben	978	DepartureBean departureBean = new DepartureBean();
85
86	torben	1093	//TODO: debug code
87	torben	1080	StationEntry station = new StationEntry(); // stationDao.getById(stationID);
88			station.setId(82);
89			station.setName("Test Station");
90			station.setRegional("HS");
91	torben	1093	//TODO: end of debug code
92	torben	307
93	torben	1021	departureBean.stationName = station.getName();
94
95	torben	588	if (station.getRegional() != null) {
96	torben	978	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
97	torben	1063	departureBean.entries.addAll( tempBean.entries );
98	torben	978	departureBean.notifications.addAll(tempBean.notifications);
99	torben	307	}
100
101	torben	588	if (station.getStrain() != null) {
102	torben	978	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
103	torben	1063	departureBean.entries.addAll( tempBean.entries );
104	torben	978	departureBean.notifications.addAll(tempBean.notifications);
105	torben	588	}
106
107	torben	1063	if (departureBean.entries.size() == 0) {
108	torben	1037	logger.info("No departures found for station " + stationID);
109			}
110
111	torben	1063	Collections.sort( departureBean.entries );
112	torben	588
113
114	torben	978	return departureBean;
115	torben	305	}
116
117	torben	978	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
118	torben	1034	if (useAzureSite == true) {
119			return lookupDeparturesAzureSite(stationcode, type, arrival);
120			} else {
121			return lookupDeparturesWwwSite(stationcode, type, arrival);
122	torben	580	}
123			}
124
125	torben	1034	private String getTypeStringAzure(TrainType type) {
126	torben	972	switch (type) {
127			case STOG:
128			return "S-Tog";
129			case REGIONAL:
130			return "Fjerntog";
131			default:
132			return ""; //Can not happen
133			}
134			}
135
136	torben	1034	private String getTypeStringWww(TrainType type) {
137			switch (type) {
138			case STOG:
139			return "S2";
140			case REGIONAL:
141			return "FJRN";
142			default:
143			return ""; //Can not happen
144			}
145			}
146
147			public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
148	torben	305
149	torben	978	DepartureBean departureBean = new DepartureBean();
150	torben	992
151	torben	970
152	torben	1034	String typeString = getTypeStringAzure(type);
153	torben	970	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
154	torben	994
155			stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
156	torben	970
157	torben	1034	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
158	torben	994
159	torben	1048	logger.fine("URI: " + uri);
160	torben	1026	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
161	torben	421	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
162	torben	305
163	torben	992	Document page = (Document) breaker.invoke(wrapper);
164	torben	305
165	torben	829	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
166	torben	992	Element table = page.getElementById(tableName);
167	torben	829
168	torben	342	if (table != null) {
169	torben	992	Elements tableRows = table.getElementsByTag("tr");
170	torben	342
171	torben	1020	boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
172			boolean passedTidsstreg = false;
173
174	torben	992	for (Element currentRow : tableRows) {
175			String rowClass = currentRow.attr("class");
176	torben	1020
177			if (tidsstregExists == true && passedTidsstreg == false) {
178			if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
179			passedTidsstreg = true;
180			} else {
181			continue;
182			}
183			}
184
185	torben	342	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
186	torben	1020
187	torben	992	Elements fields = currentRow.getElementsByTag("td");
188	torben	342
189	torben	978	DepartureEntry departure = new DepartureEntry();
190	torben	342
191	torben	992	String time = fields.get(0).text();
192	torben	375	if (time.equals(""))
193			time = "0:00"; //Bane.dk bug work-around
194	torben	342	departure.setTime(time);
195
196			int updated = extractUpdated( fields.get(1) );
197			departure.setUpdated(updated);
198
199	torben	992	String trainNumber = fields.get(2).text();
200	torben	972	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
201	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
202	torben	342	departure.setTrainNumber(trainNumber);
203
204	torben	992	String destination = fields.get(3).text();
205	torben	342	departure.setDestination(destination);
206
207	torben	992	String origin = fields.get(4).text();
208	torben	342	departure.setOrigin(origin);
209
210	torben	992	String location = fields.get(5).text();
211	torben	342	departure.setLocation(location);
212
213	torben	992	String status = fields.get(6).text().trim();
214	torben	342	departure.setStatus(status);
215
216			String note = extractNote( fields.get(7) );
217			departure.setNote(note);
218
219	torben	972	departure.setType(typeString);
220	torben	697
221	torben	1063	departureBean.entries.add( departure );
222	torben	342	}
223			}
224	torben	348	} else {
225			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
226	torben	305	}
227	torben	978
228	torben	992	Element notifDiv = page.getElementById("station_planlagte_text");
229	torben	978	if (notifDiv != null) {
230
231	torben	992	Elements tables = notifDiv.getElementsByTag("table");
232			for (Element tab : tables) {
233	torben	978
234	torben	992	Elements anchors = tab.getElementsByTag("a");
235	torben	978	if (anchors.size() == 2) {
236	torben	992	departureBean.notifications.add( anchors.get(1).text() );
237	torben	978	}
238			}
239
240			}
241
242
243			return departureBean;
244	torben	305	}
245
246	torben	1038
247
248	torben	1040	public static String cleanText(String input) {
249			//apparently JSoup translates   characters on www.bane.dk to 0xA0
250	torben	1038	return input.replace((char) 0xA0, (char)0x20).trim();
251			}
252
253	torben	1034	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
254	torben	580
255	torben	1034	DepartureBean departureBean = new DepartureBean();
256	torben	580
257	torben	1034	String type = getTypeStringWww(trainType);
258
259	torben	1045	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
260
261	torben	1034
262			String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
263	torben	1048	logger.fine("URI:" + uri);
264
265	torben	1047
266	torben	1034	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
267	torben	580	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
268
269	torben	1034	Element page = (Element) breaker.invoke(wrapper);
270	torben	580
271	torben	1034	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
272			Element table = page.getElementById(tableName);
273	torben	580
274	torben	1046
275
276	torben	1034	if (table != null) {
277			Elements tableRows = table.getElementsByTag("tr");
278	torben	580
279	torben	1046	boolean passedTidsstreg = false;
280			boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
281
282	torben	1034	for (Element currentRow : tableRows) {
283			String rowClass = currentRow.attr("class");
284	torben	1046
285			if (tidsstregExists == true && passedTidsstreg == false) {
286			if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
287			passedTidsstreg = true;
288			} else {
289			continue;
290			}
291			}
292
293
294	torben	1034	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
295			Elements fields = currentRow.getElementsByTag("td");
296
297			DepartureEntry departure = new DepartureEntry();
298
299
300
301	torben	1038	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
302	torben	1034	if (time.equals(""))
303			time = "0:00"; //Bane.dk bug work-around
304			departure.setTime(time);
305
306			int updated = extractUpdated( fields.get(1) );
307			departure.setUpdated(updated);
308
309	torben	1038	String trainNumber = cleanText( fields.get(2).text() );
310	torben	1034	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
311	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
312	torben	1034	departure.setTrainNumber(trainNumber);
313
314	torben	1038	String destination = cleanText( fields.get(3).text() );
315	torben	1034	departure.setDestination(destination);
316
317	torben	1038	String origin = cleanText( fields.get(4).text() );
318	torben	1034	departure.setOrigin(origin);
319
320	torben	1038	String location = cleanText( fields.get(5).text() );
321	torben	1034	departure.setLocation(location);
322
323	torben	1038	String status = cleanText( fields.get(6).text() );
324	torben	1034	departure.setStatus(status);
325
326	torben	1038	String note = cleanText( extractNote( fields.get(7) ) );
327	torben	1034	departure.setNote(note);
328
329			departure.setType(type);
330
331	torben	1063	departureBean.entries.add(departure);
332	torben	1034
333
334	torben	580	}
335			}
336			} else {
337			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
338			}
339
340	torben	591
341	torben	1034	return departureBean;
342			}
343
344	torben	580
345	torben	992	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
346	torben	305	int updated = -1;
347
348	torben	992	Elements updatedImgs = updatedTd.getElementsByTag("img");
349			String updatedStr = updatedImgs.get(0).attr("src");
350	torben	305
351			if (updatedStr != null) {
352			for (int i=0; i<updatedStr.length(); i++) {
353			char c = updatedStr.charAt(i);
354			if ( Character.isDigit(c)) {
355			updated = Character.digit(c, 10);
356			break;
357			}
358			}
359			}
360			return updated;
361			}
362
363	torben	992	private String extractNote(Element noteTd) {
364			String note = noteTd.text().trim();
365	torben	313
366	torben	992
367			Elements elems = noteTd.getElementsByClass("bemtype");
368	torben	313	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
369			note = note.substring(0,note.length() -1 );
370
371	torben	1038	return note.trim();
372	torben	313	}
373
374	torben	1039	private String extractTrainNumberAzure(Element trainTd) {
375	torben	992	Element anchorElement = trainTd.getElementsByTag("a").get(0);
376			String href = anchorElement.attr("href");
377	torben	349
378	torben	973	int pos = href.lastIndexOf('/');
379			String number = href.substring(pos+1);
380	torben	970
381	torben	349	return number;
382			}
383
384	torben	1039	private String extractTrainNumberWww(Element trainTd) {
385			String number = "";
386			Element anchorElement = trainTd.getElementsByTag("a").get(0);
387			String href = anchorElement.attr("href");
388			String argstring = href.substring( href.indexOf('?') + 1);
389
390			String args[] = argstring.split("&");
391			for (String arg : args) {
392			String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
393
394			if (pair[0].equalsIgnoreCase("TogNr"))
395			number = pair[1];
396			}
397
398
399			return number;
400			}
401
402
403	torben	305	//test
404	torben	580	/*
405	torben	451	public static void main(String args[]) throws Exception {
406	torben	305	DepartureFetcher f = new DepartureFetcher();
407	torben	307	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
408	torben	305	for(DepartureBean d : deps) {
409			System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
410			d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
411			}
412
413			System.out.println("--------------------------");
414	torben	580	}*/
415	torben	305	}