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.genericjavautils.HttpUtil;
import dk.thoerup.genericjavautils.TimeoutMap;
import dk.thoerup.traininfoservice.Statistics;
import dk.thoerup.traininfoservice.TraininfoSettings;
import dk.thoerup.traininfoservice.db.StationDAO;

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 TraininfoSettings settings;
        
        public DepartureFetcher(TraininfoSettings settings) {
                this.settings = settings;
                cache = new TimeoutMap<String,DepartureBean>( settings.getCacheTimeout() );
        }
        
        
        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);
                }
                
                if (type == FetchTrainType.BOTH) { //if we have both S-tog and regional order by departure/arrival time 
                        Collections.sort( departureBean.entries );
                }

                
                return departureBean;
        }
        
        public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
                if ( settings.getUseAzureSite() == true) {
                        return lookupDeparturesAzureSite(stationcode, type, arrival);
                } else { 
                        return lookupDeparturesMobileSite(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), settings.getReplyTimeout() );
            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 DepartureBean lookupDeparturesMobileSite(String stationcode, TrainType traintype, boolean arrival) throws Exception {
                
                DepartureBean departureBean = new DepartureBean();
                 
            
                String typeString = getTypeStringWww(traintype);
            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";      
            String uri = "http://mobil.bane.dk/mobilStation.asp?artikelID=5332&stat_kode=" + stationcode + "&webprofil=" + typeString  +"&beskrivelse=&mode=ankomstafgang&ankomstafgang=" + arrivalDeparture + "&gemstation=&fuldvisning=1";
            logger.fine("URI: " + uri);     
            JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
            CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
            
            Document page = (Document) breaker.invoke(wrapper);
            
            
            Element content = page.getElementsByClass("contentDiv").get(0);
            
            
            if (content != null) {
                    Elements tableRows =  content.child(0).children();
                    

                    for (Element currentRow : tableRows) {
                        if (currentRow.tagName().equals("br") ) {
                                break;
                        }
                        
                        
                        String link = currentRow.child(0).attr("href"); 
                        
                                logger.fine( currentRow.text() );
                                logger.fine("Href: " + link);
                        

                        String parts[] = currentRow.text().split(",");
                

                        DepartureEntry departure = new DepartureEntry();
                        
                        //if we do these things upfront, then we are allowed to use continue statement when row contains no more data
                        departure.setType(typeString);
                        departureBean.entries.add( departure );

/*
http://mobil.bane.dk/mobilStation.asp?artikelID=5332&tognummer=111&webprofil=FJRN&mode=rute&strBemaerkning=Afg%E5r+fra+%C5rhus+H+kl%2E07%3A21++&strRefURL=%2FmobilStation%2Easp%3FartikelID%3D5332%26stat%5Fkode%3DAR%26webprofil%3DFJRN%26beskrivelse%3D%25C5rhus%2BH%26mode%3Dankomstafgang%26ankomstafgang%3Dafgang%26gemstation%3D
*/
                        int offset = 0;
                        
                        String time = parts[offset++];
                        if (time.equals(""))
                                time = "0:00"; //Bane.dk bug work-around
                        departure.setTime(time);

                        int updated = 4; //does not exist on mobile
                        departure.setUpdated(updated);

                        String trainNumber = extractTrainNumberMobile(link);
                        /*if (traintype == TrainType.STOG) //If it is S-train we need to extract the trainNumber 
                                trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));*/
                        departure.setTrainNumber(trainNumber);

                                if (traintype == TrainType.STOG) { //if it is stog the next vield is the "Line" code - this should be used somewhere, but skippint ahead for now
                                        String stogLine = parts[offset++].trim();
                                        departure.setTrainNumber(stogLine + " " + trainNumber);
                                }

                        String destination = parts[offset++].trim();;
                        departure.setDestination(destination);

                        String origin = "-"; // fields.get(4).text(); does not exist on mobile
                        departure.setOrigin(origin);

                        String location = ""; // fields.get(5).text(); does not exist on mobile
                        departure.setLocation(location);
                        
                        if (offset == parts.length) {
                                continue;
                        }
                        
                        if (parts[offset].trim().equalsIgnoreCase("NB!")) {
                                offset++;
                        }
                        
                        if (offset == parts.length) {
                                continue;
                        }

                        String status = parts[offset++].trim();; //fields.get(6).text().trim(); - extract from url
                        departure.setStatus(status);

                        String note = ""; //extractNote( fields.get(7) ); - extract from url
                        departure.setNote(note);

                    }
            } else {
                logger.warning("No departures found for station=" + stationcode + ", type=" + traintype);
            }
            
            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();
        }
        
        
        // old www site is not available any more
        @Deprecated
        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), settings.getReplyTimeout() ); 
            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 extractTrainNumberMobile(String link) {
                Map<String,String> elements = HttpUtil.decodeParams(link);
                
                return elements.get("tognummer");
        }
        
        private String extractTrainNumberWww(Element trainTd) {
                String number = "";
                Element anchorElement = trainTd.getElementsByTag("a").get(0);
                String href = anchorElement.attr("href");

                String argstring = href.split("?")[1];
                Map<String,String> elements = HttpUtil.decodeParams(argstring);
                number = elements.get("TogNr");         
                
                
                /*String argstring = href.substring( href.indexOf('?') + 1);
                String args[] = argstring.split("&");
                for (String arg : args) {
                        String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
                        
                        if (pair[0].equalsIgnoreCase("TogNr"))
                                number = pair[1];
                }*/
                                                
                
                return number;
        }

        
        //test
        /*
        public static void main(String args[]) throws Exception {
                DepartureFetcher f = new DepartureFetcher();
                List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
                for(DepartureBean d : deps) {
                        System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" + 
                                                d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote()   );
                }
                
                System.out.println("--------------------------");
        }*/
}
1	package dk.thoerup.traininfoservice.banedk;
2
3
4	import java.net.URL;
5	import java.net.URLEncoder;
6	import java.util.Collections;
7	import java.util.Map;
8	import java.util.logging.Logger;
9
10	import org.jsoup.nodes.Document;
11	import org.jsoup.nodes.Element;
12	import org.jsoup.select.Elements;
13
14	import dk.thoerup.android.traininfo.common.DepartureBean;
15	import dk.thoerup.android.traininfo.common.DepartureEntry;
16	import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
17	import dk.thoerup.circuitbreaker.CircuitBreaker;
18	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
19	import dk.thoerup.genericjavautils.HttpUtil;
20	import dk.thoerup.genericjavautils.TimeoutMap;
21	import dk.thoerup.traininfoservice.Statistics;
22	import dk.thoerup.traininfoservice.TraininfoSettings;
23	import dk.thoerup.traininfoservice.db.StationDAO;
24
25	public class DepartureFetcher {
26
27	enum TrainType{
28	STOG,
29	REGIONAL
30	}
31
32	enum FetchTrainType {
33	STOG,
34	REGIONAL,
35	BOTH
36	}
37
38	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
39
40	Map<String, DepartureBean> cache;
41
42	StationDAO stationDao = new StationDAO();
43
44
45	private TraininfoSettings settings;
46
47	public DepartureFetcher(TraininfoSettings settings) {
48	this.settings = settings;
49	cache = new TimeoutMap<String,DepartureBean>( settings.getCacheTimeout() );
50	}
51
52
53
54
55	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
56
57	final String key = "" + stationID + ":" + arrival + ":" + type.toString();
58
59	DepartureBean departureBean = cache.get(key);
60
61
62	if (departureBean == null) {
63	departureBean = lookupDepartures(stationID, arrival, type);
64	cache.put(key, departureBean);
65	} else {
66	Statistics.getInstance().incrementDepartureCacheHits();
67	logger.info("Departure: Cache hit " + key); //remove before production
68	}
69	return departureBean;
70	}
71
72
73	public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
74
75	DepartureBean departureBean = new DepartureBean();
76
77	StationEntry station = stationDao.getById(stationID);
78
79	departureBean.stationName = station.getName();
80
81	if (station.getRegional() != null && (type == FetchTrainType.REGIONAL\|\|type == FetchTrainType.BOTH) ) {
82	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
83	departureBean.entries.addAll( tempBean.entries );
84	departureBean.notifications.addAll(tempBean.notifications);
85	}
86
87	if (station.getStrain() != null && (type == FetchTrainType.STOG\|\|type == FetchTrainType.BOTH)) {
88	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
89	departureBean.entries.addAll( tempBean.entries );
90	departureBean.notifications.addAll(tempBean.notifications);
91	}
92
93	if (departureBean.entries.size() == 0) {
94	logger.info("No departures found for station " + stationID);
95	}
96
97	if (type == FetchTrainType.BOTH) { //if we have both S-tog and regional order by departure/arrival time
98	Collections.sort( departureBean.entries );
99	}
100
101
102	return departureBean;
103	}
104
105	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
106	if ( settings.getUseAzureSite() == true) {
107	return lookupDeparturesAzureSite(stationcode, type, arrival);
108	} else {
109	return lookupDeparturesMobileSite(stationcode, type, arrival);
110	}
111	}
112
113	private String getTypeStringAzure(TrainType type) {
114	switch (type) {
115	case STOG:
116	return "S-Tog";
117	case REGIONAL:
118	return "Fjerntog";
119	default:
120	return ""; //Can not happen
121	}
122	}
123
124	private String getTypeStringWww(TrainType type) {
125	switch (type) {
126	case STOG:
127	return "S2";
128	case REGIONAL:
129	return "FJRN";
130	default:
131	return ""; //Can not happen
132	}
133	}
134
135	public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
136
137	DepartureBean departureBean = new DepartureBean();
138
139
140	String typeString = getTypeStringAzure(type);
141	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
142
143	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
144
145	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
146
147	logger.fine("URI: " + uri);
148	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
149	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
150
151	Document page = (Document) breaker.invoke(wrapper);
152
153	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
154	Element table = page.getElementById(tableName);
155
156	if (table != null) {
157	Elements tableRows = table.getElementsByTag("tr");
158
159	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
160	//boolean passedTidsstreg = false;
161
162	for (Element currentRow : tableRows) {
163	String rowClass = currentRow.attr("class");
164	/*
165	if (tidsstregExists == true && passedTidsstreg == false) {
166	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
167	passedTidsstreg = true;
168	} else {
169	continue;
170	}
171	}*/
172
173	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
174
175	Elements fields = currentRow.getElementsByTag("td");
176
177	DepartureEntry departure = new DepartureEntry();
178
179	String time = fields.get(0).text();
180	if (time.equals(""))
181	time = "0:00"; //Bane.dk bug work-around
182	departure.setTime(time);
183
184	int updated = extractUpdated( fields.get(1) );
185	departure.setUpdated(updated);
186
187	String trainNumber = fields.get(2).text();
188	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
189	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
190	departure.setTrainNumber(trainNumber);
191
192	String destination = fields.get(3).text();
193	departure.setDestination(destination);
194
195	String origin = fields.get(4).text();
196	departure.setOrigin(origin);
197
198	String location = fields.get(5).text();
199	departure.setLocation(location);
200
201	String status = fields.get(6).text().trim();
202	departure.setStatus(status);
203
204	String note = extractNote( fields.get(7) );
205	departure.setNote(note);
206
207	departure.setType(typeString);
208
209	departureBean.entries.add( departure );
210	}
211	}
212	} else {
213	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
214	}
215
216	Element notifDiv = page.getElementById("station_planlagte_text");
217	if (notifDiv != null) {
218
219	Elements tables = notifDiv.getElementsByTag("table");
220	for (Element tab : tables) {
221
222	Elements anchors = tab.getElementsByTag("a");
223	if (anchors.size() == 2) {
224	departureBean.notifications.add( anchors.get(1).text() );
225	}
226	}
227
228	}
229
230
231	return departureBean;
232	}
233
234	public DepartureBean lookupDeparturesMobileSite(String stationcode, TrainType traintype, boolean arrival) throws Exception {
235
236	DepartureBean departureBean = new DepartureBean();
237
238
239	String typeString = getTypeStringWww(traintype);
240	String arrivalDeparture = (arrival==false) ? "afgang" : "ankomst";
241
242	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
243
244	//String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
245	String uri = "http://mobil.bane.dk/mobilStation.asp?artikelID=5332&stat_kode=" + stationcode + "&webprofil=" + typeString +"&beskrivelse=&mode=ankomstafgang&ankomstafgang=" + arrivalDeparture + "&gemstation=&fuldvisning=1";
246	logger.fine("URI: " + uri);
247	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
248	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
249
250	Document page = (Document) breaker.invoke(wrapper);
251
252
253	Element content = page.getElementsByClass("contentDiv").get(0);
254
255
256	if (content != null) {
257	Elements tableRows = content.child(0).children();
258
259
260
261	for (Element currentRow : tableRows) {
262	if (currentRow.tagName().equals("br") ) {
263	break;
264	}
265
266
267	String link = currentRow.child(0).attr("href");
268
269	logger.fine( currentRow.text() );
270	logger.fine("Href: " + link);
271
272
273	String parts[] = currentRow.text().split(",");
274
275
276	DepartureEntry departure = new DepartureEntry();
277
278	//if we do these things upfront, then we are allowed to use continue statement when row contains no more data
279	departure.setType(typeString);
280	departureBean.entries.add( departure );
281
282	/*
283	http://mobil.bane.dk/mobilStation.asp?artikelID=5332&tognummer=111&webprofil=FJRN&mode=rute&strBemaerkning=Afg%E5r+fra+%C5rhus+H+kl%2E07%3A21++&strRefURL=%2FmobilStation%2Easp%3FartikelID%3D5332%26stat%5Fkode%3DAR%26webprofil%3DFJRN%26beskrivelse%3D%25C5rhus%2BH%26mode%3Dankomstafgang%26ankomstafgang%3Dafgang%26gemstation%3D
284	*/
285	int offset = 0;
286
287	String time = parts[offset++];
288	if (time.equals(""))
289	time = "0:00"; //Bane.dk bug work-around
290	departure.setTime(time);
291
292	int updated = 4; //does not exist on mobile
293	departure.setUpdated(updated);
294
295	String trainNumber = extractTrainNumberMobile(link);
296	/*if (traintype == TrainType.STOG) //If it is S-train we need to extract the trainNumber
297	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));*/
298	departure.setTrainNumber(trainNumber);
299
300	if (traintype == TrainType.STOG) { //if it is stog the next vield is the "Line" code - this should be used somewhere, but skippint ahead for now
301	String stogLine = parts[offset++].trim();
302	departure.setTrainNumber(stogLine + " " + trainNumber);
303	}
304
305	String destination = parts[offset++].trim();;
306	departure.setDestination(destination);
307
308	String origin = "-"; // fields.get(4).text(); does not exist on mobile
309	departure.setOrigin(origin);
310
311	String location = ""; // fields.get(5).text(); does not exist on mobile
312	departure.setLocation(location);
313
314	if (offset == parts.length) {
315	continue;
316	}
317
318	if (parts[offset].trim().equalsIgnoreCase("NB!")) {
319	offset++;
320	}
321
322	if (offset == parts.length) {
323	continue;
324	}
325
326	String status = parts[offset++].trim();; //fields.get(6).text().trim(); - extract from url
327	departure.setStatus(status);
328
329	String note = ""; //extractNote( fields.get(7) ); - extract from url
330	departure.setNote(note);
331
332	}
333	} else {
334	logger.warning("No departures found for station=" + stationcode + ", type=" + traintype);
335	}
336
337	return departureBean;
338	}
339
340
341
342	public static String cleanText(String input) {
343	//apparently JSoup translates   characters on www.bane.dk to 0xA0
344	return input.replace((char) 0xA0, (char)0x20).trim();
345	}
346
347
348	// old www site is not available any more
349	@Deprecated
350	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
351
352	DepartureBean departureBean = new DepartureBean();
353
354	String type = getTypeStringWww(trainType);
355
356	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
357
358
359	String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
360	logger.fine("URI:" + uri);
361
362
363	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
364	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
365
366	Element page = (Element) breaker.invoke(wrapper);
367
368	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
369	Element table = page.getElementById(tableName);
370
371
372
373	if (table != null) {
374	Elements tableRows = table.getElementsByTag("tr");
375
376	//boolean passedTidsstreg = false;
377	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
378
379	for (Element currentRow : tableRows) {
380	String rowClass = currentRow.attr("class");
381	/*
382	if (tidsstregExists == true && passedTidsstreg == false) {
383	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
384	passedTidsstreg = true;
385	} else {
386	continue;
387	}
388	}*/
389
390
391	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
392	Elements fields = currentRow.getElementsByTag("td");
393
394	DepartureEntry departure = new DepartureEntry();
395
396
397
398	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
399	if (time.equals(""))
400	time = "0:00"; //Bane.dk bug work-around
401	departure.setTime(time);
402
403	int updated = extractUpdated( fields.get(1) );
404	departure.setUpdated(updated);
405
406	String trainNumber = cleanText( fields.get(2).text() );
407	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
408	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
409	departure.setTrainNumber(trainNumber);
410
411	String destination = cleanText( fields.get(3).text() );
412	departure.setDestination(destination);
413
414	String origin = cleanText( fields.get(4).text() );
415	departure.setOrigin(origin);
416
417	String location = cleanText( fields.get(5).text() );
418	departure.setLocation(location);
419
420	String status = cleanText( fields.get(6).text() );
421	departure.setStatus(status);
422
423	String note = cleanText( extractNote( fields.get(7) ) );
424	departure.setNote(note);
425
426	departure.setType(type);
427
428	departureBean.entries.add(departure);
429
430
431	}
432	}
433	} else {
434	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
435	}
436
437
438	return departureBean;
439	}
440
441
442	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
443	int updated = -1;
444
445	Elements updatedImgs = updatedTd.getElementsByTag("img");
446	String updatedStr = updatedImgs.get(0).attr("src");
447
448	if (updatedStr != null) {
449	for (int i=0; i<updatedStr.length(); i++) {
450	char c = updatedStr.charAt(i);
451	if ( Character.isDigit(c)) {
452	updated = Character.digit(c, 10);
453	break;
454	}
455	}
456	}
457	return updated;
458	}
459
460	private String extractNote(Element noteTd) {
461	String note = noteTd.text().trim();
462
463
464	Elements elems = noteTd.getElementsByClass("bemtype");
465	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
466	note = note.substring(0,note.length() -1 );
467
468	return note.trim();
469	}
470
471	private String extractTrainNumberAzure(Element trainTd) {
472	Element anchorElement = trainTd.getElementsByTag("a").get(0);
473	String href = anchorElement.attr("href");
474
475	int pos = href.lastIndexOf('/');
476	String number = href.substring(pos+1);
477
478	return number;
479	}
480
481	private String extractTrainNumberMobile(String link) {
482	Map<String,String> elements = HttpUtil.decodeParams(link);
483
484	return elements.get("tognummer");
485	}
486
487	private String extractTrainNumberWww(Element trainTd) {
488	String number = "";
489	Element anchorElement = trainTd.getElementsByTag("a").get(0);
490	String href = anchorElement.attr("href");
491
492	String argstring = href.split("?")[1];
493	Map<String,String> elements = HttpUtil.decodeParams(argstring);
494	number = elements.get("TogNr");
495
496
497	/*String argstring = href.substring( href.indexOf('?') + 1);
498	String args[] = argstring.split("&");
499	for (String arg : args) {
500	String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
501
502	if (pair[0].equalsIgnoreCase("TogNr"))
503	number = pair[1];
504	}*/
505
506
507	return number;
508	}
509
510
511	//test
512	/*
513	public static void main(String args[]) throws Exception {
514	DepartureFetcher f = new DepartureFetcher();
515	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
516	for(DepartureBean d : deps) {
517	System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
518	d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
519	}
520
521	System.out.println("--------------------------");
522	}*/
523	}