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();
        

        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() );
        }
        
        
        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);
                }

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