traininfoservice/banedk/DepartureFetcher.java

package dk.thoerup.traininfoservice.banedk;


import java.net.URL;
import java.net.URLEncoder;
import java.util.Collections;
import java.util.Comparator;
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.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();
        TritinfoFetcher tritinfo;
        

        private TraininfoSettings settings;
        
        Comparator<DepartureEntry> departureTimeComparator = new Comparator<DepartureEntry>() {

                @Override
                public int compare(DepartureEntry arg0, DepartureEntry arg1) {          
                                String timeStr1 = arg0.getTime().replace(":","").trim();
                                String timeStr2 = arg1.getTime().replace(":","").trim();
                                
                                int time1 = 0;
                                int time2 = 0;
                                
                                if (timeStr1.length() > 0)
                                        time1 = Integer.parseInt(timeStr1);
                                
                                if (timeStr2.length() > 0)
                                        time2 = Integer.parseInt(timeStr2);
                                
                                //work correctly when clock wraps around at midnight
                                if (Math.abs(time1-time2) < 1200) {
                                        if (time1 > time2)
                                                return 1;
                                        else
                                                return -1;
                                } else {
                                        if (time1 < time2)
                                                return 1;
                                        else
                                                return -1;

                                }
                                
                }
                
        };
        
        public DepartureFetcher(TraininfoSettings settings) {
                this.settings = settings;
                cache = new TimeoutMap<String,DepartureBean>( settings.getCacheTimeout() );
                
                tritinfo = new TritinfoFetcher(settings);
        }
        
        
        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();

                //TODO: FetchTraintype.Both should be removed some time after 0.9.5 release
                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);
                }
                
                //TODO: FetchTraintype.Both should be removed some time after 0.9.5 release
                if (type == FetchTrainType.BOTH) { //if we have both S-tog and regional order by departure/arrival time 
                        Collections.sort( departureBean.entries, departureTimeComparator);
                }
                
                //System.out.println("Trit: " + settings.isTritinfoEnabled()  + " " +  station.getTritStation() );
                if ( settings.isTritinfoEnabled()  && station.getTritStation() != -1) {
                        try {
                                tritinfo.injectTritinfoData(departureBean, station);
                        } catch (Exception ex) { //det er ikke kritisk at vi får perron numre med
                                logger.warning("tritinfo failed with " + ex.getClass().getName() + ": " + ex.getMessage() );
                        }
                }

                
                return departureBean;
        }
        
        public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
                if ( settings.getBackend() == TraininfoSettings.Backend.Azure) {
                        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://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.Comparator;
8	import java.util.Map;
9	import java.util.logging.Logger;
10
11	import org.jsoup.nodes.Document;
12	import org.jsoup.nodes.Element;
13	import org.jsoup.select.Elements;
14
15	import dk.thoerup.android.traininfo.common.DepartureBean;
16	import dk.thoerup.android.traininfo.common.DepartureEntry;
17	import dk.thoerup.android.traininfo.common.StationEntry;
18	import dk.thoerup.circuitbreaker.CircuitBreaker;
19	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
20	import dk.thoerup.genericjavautils.HttpUtil;
21	import dk.thoerup.genericjavautils.TimeoutMap;
22	import dk.thoerup.traininfoservice.Statistics;
23	import dk.thoerup.traininfoservice.TraininfoSettings;
24	import dk.thoerup.traininfoservice.db.StationDAO;
25
26	public class DepartureFetcher {
27
28	enum TrainType{
29	STOG,
30	REGIONAL
31	}
32
33	enum FetchTrainType {
34	STOG,
35	REGIONAL,
36	BOTH
37	}
38
39	Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
40
41	Map<String, DepartureBean> cache;
42
43	StationDAO stationDao = new StationDAO();
44	TritinfoFetcher tritinfo;
45
46
47	private TraininfoSettings settings;
48
49	Comparator<DepartureEntry> departureTimeComparator = new Comparator<DepartureEntry>() {
50
51	@Override
52	public int compare(DepartureEntry arg0, DepartureEntry arg1) {
53	String timeStr1 = arg0.getTime().replace(":","").trim();
54	String timeStr2 = arg1.getTime().replace(":","").trim();
55
56	int time1 = 0;
57	int time2 = 0;
58
59	if (timeStr1.length() > 0)
60	time1 = Integer.parseInt(timeStr1);
61
62	if (timeStr2.length() > 0)
63	time2 = Integer.parseInt(timeStr2);
64
65	//work correctly when clock wraps around at midnight
66	if (Math.abs(time1-time2) < 1200) {
67	if (time1 > time2)
68	return 1;
69	else
70	return -1;
71	} else {
72	if (time1 < time2)
73	return 1;
74	else
75	return -1;
76
77	}
78
79	}
80
81	};
82
83	public DepartureFetcher(TraininfoSettings settings) {
84	this.settings = settings;
85	cache = new TimeoutMap<String,DepartureBean>( settings.getCacheTimeout() );
86
87	tritinfo = new TritinfoFetcher(settings);
88	}
89
90
91
92
93	public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
94
95	final String key = "" + stationID + ":" + arrival + ":" + type.toString();
96
97	DepartureBean departureBean = cache.get(key);
98
99
100	if (departureBean == null) {
101	departureBean = lookupDepartures(stationID, arrival, type);
102	cache.put(key, departureBean);
103	} else {
104	Statistics.getInstance().incrementDepartureCacheHits();
105	logger.info("Departure: Cache hit " + key); //remove before production
106	}
107	return departureBean;
108	}
109
110
111	public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
112
113	DepartureBean departureBean = new DepartureBean();
114
115	StationEntry station = stationDao.getById(stationID);
116
117	departureBean.stationName = station.getName();
118
119	//TODO: FetchTraintype.Both should be removed some time after 0.9.5 release
120	if (station.getRegional() != null && (type == FetchTrainType.REGIONAL\|\|type == FetchTrainType.BOTH) ) {
121	DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
122	departureBean.entries.addAll( tempBean.entries );
123	departureBean.notifications.addAll(tempBean.notifications);
124	}
125
126	if (station.getStrain() != null && (type == FetchTrainType.STOG\|\|type == FetchTrainType.BOTH)) {
127	DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
128	departureBean.entries.addAll( tempBean.entries );
129	departureBean.notifications.addAll(tempBean.notifications);
130	}
131
132	if (departureBean.entries.size() == 0) {
133	logger.info("No departures found for station " + stationID);
134	}
135
136	//TODO: FetchTraintype.Both should be removed some time after 0.9.5 release
137	if (type == FetchTrainType.BOTH) { //if we have both S-tog and regional order by departure/arrival time
138	Collections.sort( departureBean.entries, departureTimeComparator);
139	}
140
141	//System.out.println("Trit: " + settings.isTritinfoEnabled() + " " + station.getTritStation() );
142	if ( settings.isTritinfoEnabled() && station.getTritStation() != -1) {
143	try {
144	tritinfo.injectTritinfoData(departureBean, station);
145	} catch (Exception ex) { //det er ikke kritisk at vi får perron numre med
146	logger.warning("tritinfo failed with " + ex.getClass().getName() + ": " + ex.getMessage() );
147	}
148	}
149
150
151	return departureBean;
152	}
153
154	public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
155	if ( settings.getBackend() == TraininfoSettings.Backend.Azure) {
156	return lookupDeparturesAzureSite(stationcode, type, arrival);
157	} else {
158	return lookupDeparturesMobileSite(stationcode, type, arrival);
159	}
160	}
161
162	private String getTypeStringAzure(TrainType type) {
163	switch (type) {
164	case STOG:
165	return "S-Tog";
166	case REGIONAL:
167	return "Fjerntog";
168	default:
169	return ""; //Can not happen
170	}
171	}
172
173	private String getTypeStringWww(TrainType type) {
174	switch (type) {
175	case STOG:
176	return "S2";
177	case REGIONAL:
178	return "FJRN";
179	default:
180	return ""; //Can not happen
181	}
182	}
183
184	public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
185
186	DepartureBean departureBean = new DepartureBean();
187
188
189	String typeString = getTypeStringAzure(type);
190	String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
191
192	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
193
194	String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
195
196	logger.fine("URI: " + uri);
197	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
198	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
199
200	Document page = (Document) breaker.invoke(wrapper);
201
202	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
203	Element table = page.getElementById(tableName);
204
205	if (table != null) {
206	Elements tableRows = table.getElementsByTag("tr");
207
208	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
209	//boolean passedTidsstreg = false;
210
211	for (Element currentRow : tableRows) {
212	String rowClass = currentRow.attr("class");
213	/*
214	if (tidsstregExists == true && passedTidsstreg == false) {
215	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
216	passedTidsstreg = true;
217	} else {
218	continue;
219	}
220	}*/
221
222	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
223
224	Elements fields = currentRow.getElementsByTag("td");
225
226	DepartureEntry departure = new DepartureEntry();
227
228	String time = fields.get(0).text();
229	if (time.equals(""))
230	time = "0:00"; //Bane.dk bug work-around
231	departure.setTime(time);
232
233	int updated = extractUpdated( fields.get(1) );
234	departure.setUpdated(updated);
235
236	String trainNumber = fields.get(2).text();
237	if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
238	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
239	departure.setTrainNumber(trainNumber);
240
241	String destination = fields.get(3).text();
242	departure.setDestination(destination);
243
244	String origin = fields.get(4).text();
245	departure.setOrigin(origin);
246
247	String location = fields.get(5).text();
248	departure.setLocation(location);
249
250	String status = fields.get(6).text().trim();
251	departure.setStatus(status);
252
253	String note = extractNote( fields.get(7) );
254	departure.setNote(note);
255
256	departure.setType(typeString);
257
258	departureBean.entries.add( departure );
259	}
260	}
261	} else {
262	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
263	}
264
265	Element notifDiv = page.getElementById("station_planlagte_text");
266	if (notifDiv != null) {
267
268	Elements tables = notifDiv.getElementsByTag("table");
269	for (Element tab : tables) {
270
271	Elements anchors = tab.getElementsByTag("a");
272	if (anchors.size() == 2) {
273	departureBean.notifications.add( anchors.get(1).text() );
274	}
275	}
276
277	}
278
279
280	return departureBean;
281	}
282
283	public DepartureBean lookupDeparturesMobileSite(String stationcode, TrainType traintype, boolean arrival) throws Exception {
284
285	DepartureBean departureBean = new DepartureBean();
286
287
288	String typeString = getTypeStringWww(traintype);
289	String arrivalDeparture = (arrival==false) ? "afgang" : "ankomst";
290
291	stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
292
293
294	String uri = "http://mobil.bane.dk/mobilStation.asp?artikelID=5332&stat_kode=" + stationcode + "&webprofil=" + typeString +"&beskrivelse=&mode=ankomstafgang&ankomstafgang=" + arrivalDeparture + "&gemstation=&fuldvisning=1";
295	logger.fine("URI: " + uri);
296	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
297	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
298
299	Document page = (Document) breaker.invoke(wrapper);
300
301
302	Element content = page.getElementsByClass("contentDiv").get(0);
303
304
305	if (content != null) {
306	Elements tableRows = content.child(0).children();
307
308
309
310	for (Element currentRow : tableRows) {
311	if (currentRow.tagName().equals("br") ) {
312	break;
313	}
314
315
316	String link = currentRow.child(0).attr("href");
317
318	logger.fine( currentRow.text() );
319	logger.fine("Href: " + link);
320
321
322	String parts[] = currentRow.text().split(",");
323
324
325	DepartureEntry departure = new DepartureEntry();
326
327	//if we do these things upfront, then we are allowed to use continue statement when row contains no more data
328	departure.setType(typeString);
329	departureBean.entries.add( departure );
330
331	/*
332	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
333	*/
334	int offset = 0;
335
336	String time = parts[offset++];
337	if (time.equals(""))
338	time = "0:00"; //Bane.dk bug work-around
339	departure.setTime(time);
340
341	int updated = 4; //does not exist on mobile
342	departure.setUpdated(updated);
343
344	String trainNumber = extractTrainNumberMobile(link);
345	/*if (traintype == TrainType.STOG) //If it is S-train we need to extract the trainNumber
346	trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));*/
347	departure.setTrainNumber(trainNumber);
348
349	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
350	String stogLine = parts[offset++].trim();
351	departure.setTrainNumber(stogLine + " " + trainNumber);
352	}
353
354	String destination = parts[offset++].trim();;
355	departure.setDestination(destination);
356
357	String origin = "-"; // fields.get(4).text(); does not exist on mobile
358	departure.setOrigin(origin);
359
360	String location = ""; // fields.get(5).text(); does not exist on mobile
361	departure.setLocation(location);
362
363	if (offset == parts.length) {
364	continue;
365	}
366
367	if (parts[offset].trim().equalsIgnoreCase("NB!")) {
368	offset++;
369	}
370
371	if (offset == parts.length) {
372	continue;
373	}
374
375	String status = parts[offset++].trim();; //fields.get(6).text().trim(); - extract from url
376	departure.setStatus(status);
377
378	String note = ""; //extractNote( fields.get(7) ); - extract from url
379	departure.setNote(note);
380
381	}
382	} else {
383	logger.warning("No departures found for station=" + stationcode + ", type=" + traintype);
384	}
385
386	return departureBean;
387	}
388
389
390
391	public static String cleanText(String input) {
392	//apparently JSoup translates   characters on www.bane.dk to 0xA0
393	return input.replace((char) 0xA0, (char)0x20).trim();
394	}
395
396
397	// old www site is not available any more
398	@Deprecated
399	public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
400
401	DepartureBean departureBean = new DepartureBean();
402
403	String type = getTypeStringWww(trainType);
404
405	stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
406
407
408	String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
409	logger.fine("URI:" + uri);
410
411
412	JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
413	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
414
415	Element page = (Element) breaker.invoke(wrapper);
416
417	String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
418	Element table = page.getElementById(tableName);
419
420
421
422	if (table != null) {
423	Elements tableRows = table.getElementsByTag("tr");
424
425	//boolean passedTidsstreg = false;
426	//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
427
428	for (Element currentRow : tableRows) {
429	String rowClass = currentRow.attr("class");
430	/*
431	if (tidsstregExists == true && passedTidsstreg == false) {
432	if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
433	passedTidsstreg = true;
434	} else {
435	continue;
436	}
437	}*/
438
439
440	if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
441	Elements fields = currentRow.getElementsByTag("td");
442
443	DepartureEntry departure = new DepartureEntry();
444
445
446
447	String time = cleanText( fields.get(0).getAllElements().get(2).text() );
448	if (time.equals(""))
449	time = "0:00"; //Bane.dk bug work-around
450	departure.setTime(time);
451
452	int updated = extractUpdated( fields.get(1) );
453	departure.setUpdated(updated);
454
455	String trainNumber = cleanText( fields.get(2).text() );
456	if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
457	trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
458	departure.setTrainNumber(trainNumber);
459
460	String destination = cleanText( fields.get(3).text() );
461	departure.setDestination(destination);
462
463	String origin = cleanText( fields.get(4).text() );
464	departure.setOrigin(origin);
465
466	String location = cleanText( fields.get(5).text() );
467	departure.setLocation(location);
468
469	String status = cleanText( fields.get(6).text() );
470	departure.setStatus(status);
471
472	String note = cleanText( extractNote( fields.get(7) ) );
473	departure.setNote(note);
474
475	departure.setType(type);
476
477	departureBean.entries.add(departure);
478
479
480	}
481	}
482	} else {
483	logger.warning("No departures found for station=" + stationcode + ", type=" + type);
484	}
485
486
487	return departureBean;
488	}
489
490
491	private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
492	int updated = -1;
493
494	Elements updatedImgs = updatedTd.getElementsByTag("img");
495	String updatedStr = updatedImgs.get(0).attr("src");
496
497	if (updatedStr != null) {
498	for (int i=0; i<updatedStr.length(); i++) {
499	char c = updatedStr.charAt(i);
500	if ( Character.isDigit(c)) {
501	updated = Character.digit(c, 10);
502	break;
503	}
504	}
505	}
506	return updated;
507	}
508
509	private String extractNote(Element noteTd) {
510	String note = noteTd.text().trim();
511
512
513	Elements elems = noteTd.getElementsByClass("bemtype");
514	if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
515	note = note.substring(0,note.length() -1 );
516
517	return note.trim();
518	}
519
520	private String extractTrainNumberAzure(Element trainTd) {
521	Element anchorElement = trainTd.getElementsByTag("a").get(0);
522	String href = anchorElement.attr("href");
523
524	int pos = href.lastIndexOf('=');
525	String number = href.substring(pos+1);
526
527	return number;
528	}
529
530	private String extractTrainNumberMobile(String link) {
531	Map<String,String> elements = HttpUtil.decodeParams(link);
532
533	return elements.get("tognummer");
534	}
535
536	private String extractTrainNumberWww(Element trainTd) {
537	String number = "";
538	Element anchorElement = trainTd.getElementsByTag("a").get(0);
539	String href = anchorElement.attr("href");
540
541	String argstring = href.split("?")[1];
542	Map<String,String> elements = HttpUtil.decodeParams(argstring);
543	number = elements.get("TogNr");
544
545
546	/*String argstring = href.substring( href.indexOf('?') + 1);
547	String args[] = argstring.split("&");
548	for (String arg : args) {
549	String pair[] = arg.split("="); // Key=pair[0], Value=pair[1]
550
551	if (pair[0].equalsIgnoreCase("TogNr"))
552	number = pair[1];
553	}*/
554
555
556	return number;
557	}
558
559
560
561	//test
562	/*
563	public static void main(String args[]) throws Exception {
564	DepartureFetcher f = new DepartureFetcher();
565	List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
566	for(DepartureBean d : deps) {
567	System.out.println( d.getTime() + ";" + d.getUpdated() + ";" + d.getTrainNumber() + ";" +
568	d.getDestination() + ";" + d.getOrigin() + ";" + d.getLocation() + ";" + d.getStatus() + ";" + d.getNote() );
569	}
570
571	System.out.println("--------------------------");
572	}*/
573	}