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.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	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	torben	1415	import dk.thoerup.android.traininfo.common.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	1105	StationEntry station = stationDao.getById(stationID);
87
88	torben	307
89	torben	1021	departureBean.stationName = station.getName();
90
91	torben	588	if (station.getRegional() != null) {
92	torben	978	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
93	torben	1063	departureBean.entries.addAll( tempBean.entries );
94	torben	978	departureBean.notifications.addAll(tempBean.notifications);
95	torben	307	}
96
97	torben	588	if (station.getStrain() != null) {
98	torben	978	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
99	torben	1063	departureBean.entries.addAll( tempBean.entries );
100	torben	978	departureBean.notifications.addAll(tempBean.notifications);
101	torben	588	}
102
103	torben	1063	if (departureBean.entries.size() == 0) {
104	torben	1037	logger.info("No departures found for station " + stationID);
105			}
106
107	torben	1063	Collections.sort( departureBean.entries );
108	torben	588
109
110	torben	978	return departureBean;
111	torben	305	}
112
113	torben	978	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
114	torben	1034	if (useAzureSite == true) {
115			return lookupDeparturesAzureSite(stationcode, type, arrival);
116			} else {
117			return lookupDeparturesWwwSite(stationcode, type, arrival);
118	torben	580	}
119			}
120
121	torben	1034	private String getTypeStringAzure(TrainType type) {
122	torben	972	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	torben	1034	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	torben	305
145	torben	978	DepartureBean departureBean = new DepartureBean();
146	torben	992
147	torben	970
148	torben	1034	String typeString = getTypeStringAzure(type);
149	torben	970	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
150	torben	994
151			stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
152	torben	970
153	torben	1034	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
154	torben	994
155	torben	1048	logger.fine("URI: " + uri);
156	torben	1026	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
157	torben	421	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
158	torben	305
159	torben	992	Document page = (Document) breaker.invoke(wrapper);
160	torben	305
161	torben	829	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
162	torben	992	Element table = page.getElementById(tableName);
163	torben	829
164	torben	342	if (table != null) {
165	torben	992	Elements tableRows = table.getElementsByTag("tr");
166	torben	342
167	torben	1020	boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
168			boolean passedTidsstreg = false;
169
170	torben	992	for (Element currentRow : tableRows) {
171			String rowClass = currentRow.attr("class");
172	torben	1020
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	torben	342	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
182	torben	1020
183	torben	992	Elements fields = currentRow.getElementsByTag("td");
184	torben	342
185	torben	978	DepartureEntry departure = new DepartureEntry();
186	torben	342
187	torben	992	String time = fields.get(0).text();
188	torben	375	if (time.equals(""))
189			time = "0:00"; //Bane.dk bug work-around
190	torben	342	departure.setTime(time);
191
192			int updated = extractUpdated( fields.get(1) );
193			departure.setUpdated(updated);
194
195	torben	992	String trainNumber = fields.get(2).text();
196	torben	972	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
197	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
198	torben	342	departure.setTrainNumber(trainNumber);
199
200	torben	992	String destination = fields.get(3).text();
201	torben	342	departure.setDestination(destination);
202
203	torben	992	String origin = fields.get(4).text();
204	torben	342	departure.setOrigin(origin);
205
206	torben	992	String location = fields.get(5).text();
207	torben	342	departure.setLocation(location);
208
209	torben	992	String status = fields.get(6).text().trim();
210	torben	342	departure.setStatus(status);
211
212			String note = extractNote( fields.get(7) );
213			departure.setNote(note);
214
215	torben	972	departure.setType(typeString);
216	torben	697
217	torben	1063	departureBean.entries.add( departure );
218	torben	342	}
219			}
220	torben	348	} else {
221			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
222	torben	305	}
223	torben	978
224	torben	992	Element notifDiv = page.getElementById("station_planlagte_text");
225	torben	978	if (notifDiv != null) {
226
227	torben	992	Elements tables = notifDiv.getElementsByTag("table");
228			for (Element tab : tables) {
229	torben	978
230	torben	992	Elements anchors = tab.getElementsByTag("a");
231	torben	978	if (anchors.size() == 2) {
232	torben	992	departureBean.notifications.add( anchors.get(1).text() );
233	torben	978	}
234			}
235
236			}
237
238
239			return departureBean;
240	torben	305	}
241
242	torben	1038
243
244	torben	1040	public static String cleanText(String input) {
245			//apparently JSoup translates   characters on www.bane.dk to 0xA0
246	torben	1038	return input.replace((char) 0xA0, (char)0x20).trim();
247			}
248
249	torben	1034	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
250	torben	580
251	torben	1034	DepartureBean departureBean = new DepartureBean();
252	torben	580
253	torben	1034	String type = getTypeStringWww(trainType);
254
255	torben	1045	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
256
257	torben	1034
258			String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
259	torben	1048	logger.fine("URI:" + uri);
260
261	torben	1047
262	torben	1034	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
263	torben	580	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
264
265	torben	1034	Element page = (Element) breaker.invoke(wrapper);
266	torben	580
267	torben	1034	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
268			Element table = page.getElementById(tableName);
269	torben	580
270	torben	1046
271
272	torben	1034	if (table != null) {
273			Elements tableRows = table.getElementsByTag("tr");
274	torben	580
275	torben	1046	boolean passedTidsstreg = false;
276			boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
277
278	torben	1034	for (Element currentRow : tableRows) {
279			String rowClass = currentRow.attr("class");
280	torben	1046
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	torben	1034	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
291			Elements fields = currentRow.getElementsByTag("td");
292
293			DepartureEntry departure = new DepartureEntry();
294
295
296
297	torben	1038	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
298	torben	1034	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	torben	1038	String trainNumber = cleanText( fields.get(2).text() );
306	torben	1034	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
307	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
308	torben	1034	departure.setTrainNumber(trainNumber);
309
310	torben	1038	String destination = cleanText( fields.get(3).text() );
311	torben	1034	departure.setDestination(destination);
312
313	torben	1038	String origin = cleanText( fields.get(4).text() );
314	torben	1034	departure.setOrigin(origin);
315
316	torben	1038	String location = cleanText( fields.get(5).text() );
317	torben	1034	departure.setLocation(location);
318
319	torben	1038	String status = cleanText( fields.get(6).text() );
320	torben	1034	departure.setStatus(status);
321
322	torben	1038	String note = cleanText( extractNote( fields.get(7) ) );
323	torben	1034	departure.setNote(note);
324
325			departure.setType(type);
326
327	torben	1063	departureBean.entries.add(departure);
328	torben	1034
329
330	torben	580	}
331			}
332			} else {
333			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
334			}
335
336	torben	591
337	torben	1034	return departureBean;
338			}
339
340	torben	580
341	torben	992	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
342	torben	305	int updated = -1;
343
344	torben	992	Elements updatedImgs = updatedTd.getElementsByTag("img");
345			String updatedStr = updatedImgs.get(0).attr("src");
346	torben	305
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	torben	992	private String extractNote(Element noteTd) {
360			String note = noteTd.text().trim();
361	torben	313
362	torben	992
363			Elements elems = noteTd.getElementsByClass("bemtype");
364	torben	313	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
365			note = note.substring(0,note.length() -1 );
366
367	torben	1038	return note.trim();
368	torben	313	}
369
370	torben	1039	private String extractTrainNumberAzure(Element trainTd) {
371	torben	992	Element anchorElement = trainTd.getElementsByTag("a").get(0);
372			String href = anchorElement.attr("href");
373	torben	349
374	torben	973	int pos = href.lastIndexOf('/');
375			String number = href.substring(pos+1);
376	torben	970
377	torben	349	return number;
378			}
379
380	torben	1039	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	torben	305	//test
400	torben	580	/*
401	torben	451	public static void main(String args[]) throws Exception {
402	torben	305	DepartureFetcher f = new DepartureFetcher();
403	torben	307	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
404	torben	305	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	torben	580	}*/
411	torben	305	}