traininfoservice/banedk/DepartureFetcher.java

package dk.thoerup.traininfoservice.banedk;


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

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

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

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

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

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

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

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

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

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

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

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

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

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

        
        //test
        /*
        public static void main(String args[]) throws Exception {
                DepartureFetcher f = new DepartureFetcher();
                List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
                for(DepartureBean d : deps) {
                        System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" + 
                                                d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote()   );
                }
                
                System.out.println("--------------------------");
        }*/
}
1	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	428	import java.util.Map;
8	torben	348	import java.util.logging.Logger;
9	torben	305
10	torben	992	import org.jsoup.nodes.Document;
11			import org.jsoup.nodes.Element;
12			import org.jsoup.select.Elements;
13	torben	305
14	torben	1061	import dk.thoerup.android.traininfo.common.DepartureBean;
15			import dk.thoerup.android.traininfo.common.DepartureEntry;
16			import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
17	torben	468	import dk.thoerup.circuitbreaker.CircuitBreaker;
18			import dk.thoerup.circuitbreaker.CircuitBreakerManager;
19	torben	588	import dk.thoerup.traininfoservice.StationDAO;
20	torben	711	import dk.thoerup.traininfoservice.Statistics;
21	torben	307
22	torben	305	public class DepartureFetcher {
23	torben	348
24	torben	972	enum TrainType{
25			STOG,
26			REGIONAL
27			}
28
29	torben	1248	enum FetchTrainType {
30			STOG,
31			REGIONAL,
32			BOTH
33			}
34
35	torben	348	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
36	torben	387
37	torben	978	Map<String, DepartureBean> cache;
38	torben	387
39	torben	588	StationDAO stationDao = new StationDAO();
40
41	torben	1034	private boolean useAzureSite;
42	torben	1026	private int replyTimeout;
43	torben	580
44	torben	1034	public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) {
45	torben	1026	this.replyTimeout = replyTimeout;
46	torben	1034	useAzureSite = azureSite;
47	torben	978	cache = new TimeoutMap<String,DepartureBean>(cacheTimeout);
48	torben	580	}
49
50
51	torben	307
52	torben	387
53	torben	1248	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
54	torben	980
55	torben	1248	final String key = "" + stationID + ":" + arrival + ":" + type.toString();
56
57	torben	978	DepartureBean departureBean = cache.get(key);
58	torben	308
59	torben	387
60	torben	978	if (departureBean == null) {
61	torben	1248	departureBean = lookupDepartures(stationID, arrival, type);
62	torben	978	cache.put(key, departureBean);
63	torben	387	} else {
64	torben	711	Statistics.getInstance().incrementDepartureCacheHits();
65	torben	829	logger.info("Departure: Cache hit " + key); //remove before production
66	torben	387	}
67	torben	980	return departureBean;
68	torben	387	}
69
70
71	torben	1248	public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
72	torben	307
73	torben	978	DepartureBean departureBean = new DepartureBean();
74
75	torben	1060	StationEntry station = stationDao.getById(stationID);
76	torben	307
77	torben	1021	departureBean.stationName = station.getName();
78
79	torben	1248	if (station.getRegional() != null && (type == FetchTrainType.REGIONAL\|\|type == FetchTrainType.BOTH) ) {
80	torben	978	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
81	torben	1063	departureBean.entries.addAll( tempBean.entries );
82	torben	978	departureBean.notifications.addAll(tempBean.notifications);
83	torben	307	}
84
85	torben	1248	if (station.getStrain() != null && (type == FetchTrainType.STOG\|\|type == FetchTrainType.BOTH)) {
86	torben	978	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
87	torben	1063	departureBean.entries.addAll( tempBean.entries );
88	torben	978	departureBean.notifications.addAll(tempBean.notifications);
89	torben	588	}
90
91	torben	1063	if (departureBean.entries.size() == 0) {
92	torben	1037	logger.info("No departures found for station " + stationID);
93			}
94
95	torben	1063	Collections.sort( departureBean.entries );
96	torben	588
97
98	torben	978	return departureBean;
99	torben	305	}
100
101	torben	978	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
102	torben	1034	if (useAzureSite == true) {
103			return lookupDeparturesAzureSite(stationcode, type, arrival);
104			} else {
105			return lookupDeparturesWwwSite(stationcode, type, arrival);
106	torben	580	}
107			}
108
109	torben	1034	private String getTypeStringAzure(TrainType type) {
110	torben	972	switch (type) {
111			case STOG:
112			return "S-Tog";
113			case REGIONAL:
114			return "Fjerntog";
115			default:
116			return ""; //Can not happen
117			}
118			}
119
120	torben	1034	private String getTypeStringWww(TrainType type) {
121			switch (type) {
122			case STOG:
123			return "S2";
124			case REGIONAL:
125			return "FJRN";
126			default:
127			return ""; //Can not happen
128			}
129			}
130
131			public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
132	torben	305
133	torben	978	DepartureBean departureBean = new DepartureBean();
134	torben	992
135	torben	970
136	torben	1034	String typeString = getTypeStringAzure(type);
137	torben	970	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
138	torben	994
139			stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
140	torben	970
141	torben	1034	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
142	torben	994
143	torben	1048	logger.fine("URI: " + uri);
144	torben	1026	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
145	torben	421	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
146	torben	305
147	torben	992	Document page = (Document) breaker.invoke(wrapper);
148	torben	305
149	torben	829	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
150	torben	992	Element table = page.getElementById(tableName);
151	torben	829
152	torben	342	if (table != null) {
153	torben	992	Elements tableRows = table.getElementsByTag("tr");
154	torben	342
155	torben	1188	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
156			//boolean passedTidsstreg = false;
157	torben	1020
158	torben	992	for (Element currentRow : tableRows) {
159			String rowClass = currentRow.attr("class");
160	torben	1188	/*
161	torben	1020	if (tidsstregExists == true && passedTidsstreg == false) {
162			if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
163			passedTidsstreg = true;
164			} else {
165			continue;
166			}
167	torben	1188	}*/
168	torben	1020
169	torben	342	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
170	torben	1020
171	torben	992	Elements fields = currentRow.getElementsByTag("td");
172	torben	342
173	torben	978	DepartureEntry departure = new DepartureEntry();
174	torben	342
175	torben	992	String time = fields.get(0).text();
176	torben	375	if (time.equals(""))
177			time = "0:00"; //Bane.dk bug work-around
178	torben	342	departure.setTime(time);
179
180			int updated = extractUpdated( fields.get(1) );
181			departure.setUpdated(updated);
182
183	torben	992	String trainNumber = fields.get(2).text();
184	torben	972	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
185	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
186	torben	342	departure.setTrainNumber(trainNumber);
187
188	torben	992	String destination = fields.get(3).text();
189	torben	342	departure.setDestination(destination);
190
191	torben	992	String origin = fields.get(4).text();
192	torben	342	departure.setOrigin(origin);
193
194	torben	992	String location = fields.get(5).text();
195	torben	342	departure.setLocation(location);
196
197	torben	992	String status = fields.get(6).text().trim();
198	torben	342	departure.setStatus(status);
199
200			String note = extractNote( fields.get(7) );
201			departure.setNote(note);
202
203	torben	972	departure.setType(typeString);
204	torben	697
205	torben	1063	departureBean.entries.add( departure );
206	torben	342	}
207			}
208	torben	348	} else {
209			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
210	torben	305	}
211	torben	978
212	torben	992	Element notifDiv = page.getElementById("station_planlagte_text");
213	torben	978	if (notifDiv != null) {
214
215	torben	992	Elements tables = notifDiv.getElementsByTag("table");
216			for (Element tab : tables) {
217	torben	978
218	torben	992	Elements anchors = tab.getElementsByTag("a");
219	torben	978	if (anchors.size() == 2) {
220	torben	992	departureBean.notifications.add( anchors.get(1).text() );
221	torben	978	}
222			}
223
224			}
225
226
227			return departureBean;
228	torben	305	}
229
230	torben	1038
231
232	torben	1040	public static String cleanText(String input) {
233			//apparently JSoup translates   characters on www.bane.dk to 0xA0
234	torben	1038	return input.replace((char) 0xA0, (char)0x20).trim();
235			}
236
237	torben	1034	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
238	torben	580
239	torben	1034	DepartureBean departureBean = new DepartureBean();
240	torben	580
241	torben	1034	String type = getTypeStringWww(trainType);
242
243	torben	1045	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
244
245	torben	1034
246			String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
247	torben	1048	logger.fine("URI:" + uri);
248
249	torben	1047
250	torben	1034	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout);
251	torben	580	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
252
253	torben	1034	Element page = (Element) breaker.invoke(wrapper);
254	torben	580
255	torben	1034	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
256			Element table = page.getElementById(tableName);
257	torben	580
258	torben	1046
259
260	torben	1034	if (table != null) {
261			Elements tableRows = table.getElementsByTag("tr");
262	torben	580
263	torben	1188	//boolean passedTidsstreg = false;
264			//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
265	torben	1046
266	torben	1034	for (Element currentRow : tableRows) {
267			String rowClass = currentRow.attr("class");
268	torben	1188	/*
269	torben	1046	if (tidsstregExists == true && passedTidsstreg == false) {
270			if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
271			passedTidsstreg = true;
272			} else {
273			continue;
274			}
275	torben	1188	}*/
276	torben	1046
277
278	torben	1034	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
279			Elements fields = currentRow.getElementsByTag("td");
280
281			DepartureEntry departure = new DepartureEntry();
282
283
284
285	torben	1038	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
286	torben	1034	if (time.equals(""))
287			time = "0:00"; //Bane.dk bug work-around
288			departure.setTime(time);
289
290			int updated = extractUpdated( fields.get(1) );
291			departure.setUpdated(updated);
292
293	torben	1038	String trainNumber = cleanText( fields.get(2).text() );
294	torben	1034	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
295	torben	1039	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
296	torben	1034	departure.setTrainNumber(trainNumber);
297
298	torben	1038	String destination = cleanText( fields.get(3).text() );
299	torben	1034	departure.setDestination(destination);
300
301	torben	1038	String origin = cleanText( fields.get(4).text() );
302	torben	1034	departure.setOrigin(origin);
303
304	torben	1038	String location = cleanText( fields.get(5).text() );
305	torben	1034	departure.setLocation(location);
306
307	torben	1038	String status = cleanText( fields.get(6).text() );
308	torben	1034	departure.setStatus(status);
309
310	torben	1038	String note = cleanText( extractNote( fields.get(7) ) );
311	torben	1034	departure.setNote(note);
312
313			departure.setType(type);
314
315	torben	1063	departureBean.entries.add(departure);
316	torben	1034
317
318	torben	580	}
319			}
320			} else {
321			logger.warning("No departures found for station=" + stationcode + ", type=" + type);
322			}
323
324	torben	591
325	torben	1034	return departureBean;
326			}
327
328	torben	580
329	torben	992	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
330	torben	305	int updated = -1;
331
332	torben	992	Elements updatedImgs = updatedTd.getElementsByTag("img");
333			String updatedStr = updatedImgs.get(0).attr("src");
334	torben	305
335			if (updatedStr != null) {
336			for (int i=0; i<updatedStr.length(); i++) {
337			char c = updatedStr.charAt(i);
338			if ( Character.isDigit(c)) {
339			updated = Character.digit(c, 10);
340			break;
341			}
342			}
343			}
344			return updated;
345			}
346
347	torben	992	private String extractNote(Element noteTd) {
348			String note = noteTd.text().trim();
349	torben	313
350	torben	992
351			Elements elems = noteTd.getElementsByClass("bemtype");
352	torben	313	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
353			note = note.substring(0,note.length() -1 );
354
355	torben	1038	return note.trim();
356	torben	313	}
357
358	torben	1039	private String extractTrainNumberAzure(Element trainTd) {
359	torben	992	Element anchorElement = trainTd.getElementsByTag("a").get(0);
360			String href = anchorElement.attr("href");
361	torben	349
362	torben	973	int pos = href.lastIndexOf('/');
363			String number = href.substring(pos+1);
364	torben	970
365	torben	349	return number;
366			}
367
368	torben	1039	private String extractTrainNumberWww(Element trainTd) {
369			String number = "";
370			Element anchorElement = trainTd.getElementsByTag("a").get(0);
371			String href = anchorElement.attr("href");
372			String argstring = href.substring( href.indexOf('?') + 1);
373
374			String args[] = argstring.split("&");
375			for (String arg : args) {
376			String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
377
378			if (pair[0].equalsIgnoreCase("TogNr"))
379			number = pair[1];
380			}
381
382
383			return number;
384			}
385
386
387	torben	305	//test
388	torben	580	/*
389	torben	451	public static void main(String args[]) throws Exception {
390	torben	305	DepartureFetcher f = new DepartureFetcher();
391	torben	307	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
392	torben	305	for(DepartureBean d : deps) {
393			System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
394			d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
395			}
396
397			System.out.println("--------------------------");
398	torben	580	}*/
399	torben	305	}