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package dk.thoerup.traininfoservice.banedk;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.util.Collections;
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import java.util.Map;
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import java.util.logging.Logger;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import org.jsoup.select.Elements;
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import dk.thoerup.android.traininfo.common.DepartureBean;
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import dk.thoerup.android.traininfo.common.DepartureEntry;
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import dk.thoerup.android.traininfo.common.StationEntry;
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import dk.thoerup.circuitbreaker.CircuitBreaker;
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import dk.thoerup.circuitbreaker.CircuitBreakerManager;
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import dk.thoerup.genericjavautils.HttpUtil;
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import dk.thoerup.genericjavautils.TimeoutMap;
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import dk.thoerup.traininfoservice.Statistics;
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import dk.thoerup.traininfoservice.TraininfoSettings;
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import dk.thoerup.traininfoservice.db.StationDAO;
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public class DepartureFetcher {
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enum TrainType{
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STOG,
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REGIONAL
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}
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enum FetchTrainType {
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STOG,
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REGIONAL,
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BOTH
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}
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Logger logger = Logger.getLogger(DepartureFetcher.class.getName());
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Map<String, DepartureBean> cache;
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StationDAO stationDao = new StationDAO();
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private TraininfoSettings settings;
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public DepartureFetcher(TraininfoSettings settings) {
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this.settings = settings;
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cache = new TimeoutMap<String,DepartureBean>( settings.getCacheTimeout() );
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}
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public DepartureBean cachedLookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
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final String key = "" + stationID + ":" + arrival + ":" + type.toString();
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DepartureBean departureBean = cache.get(key);
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if (departureBean == null) {
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departureBean = lookupDepartures(stationID, arrival, type);
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cache.put(key, departureBean);
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} else {
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Statistics.getInstance().incrementDepartureCacheHits();
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logger.info("Departure: Cache hit " + key); //remove before production
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}
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return departureBean;
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}
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public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception {
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DepartureBean departureBean = new DepartureBean();
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StationEntry station = stationDao.getById(stationID);
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departureBean.stationName = station.getName();
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if (station.getRegional() != null && (type == FetchTrainType.REGIONAL||type == FetchTrainType.BOTH) ) {
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DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival);
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departureBean.entries.addAll( tempBean.entries );
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departureBean.notifications.addAll(tempBean.notifications);
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}
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if (station.getStrain() != null && (type == FetchTrainType.STOG||type == FetchTrainType.BOTH)) {
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DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival);
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departureBean.entries.addAll( tempBean.entries );
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departureBean.notifications.addAll(tempBean.notifications);
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}
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if (departureBean.entries.size() == 0) {
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logger.info("No departures found for station " + stationID);
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}
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if (type == FetchTrainType.BOTH) { //if we have both S-tog and regional order by departure/arrival time
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Collections.sort( departureBean.entries );
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}
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return departureBean;
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}
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public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception {
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if ( settings.getBackend() == TraininfoSettings.Backend.Azure) {
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return lookupDeparturesAzureSite(stationcode, type, arrival);
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} else {
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return lookupDeparturesMobileSite(stationcode, type, arrival);
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}
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}
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private String getTypeStringAzure(TrainType type) {
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switch (type) {
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case STOG:
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return "S-Tog";
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case REGIONAL:
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return "Fjerntog";
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default:
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return ""; //Can not happen
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}
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}
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private String getTypeStringWww(TrainType type) {
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switch (type) {
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case STOG:
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return "S2";
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case REGIONAL:
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return "FJRN";
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default:
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return ""; //Can not happen
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}
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}
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public DepartureBean lookupDeparturesAzureSite(String stationcode, TrainType type, boolean arrival) throws Exception {
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DepartureBean departureBean = new DepartureBean();
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String typeString = getTypeStringAzure(type);
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String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst";
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stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
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String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
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logger.fine("URI: " + uri);
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JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
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CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
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Document page = (Document) breaker.invoke(wrapper);
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String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
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Element table = page.getElementById(tableName);
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if (table != null) {
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Elements tableRows = table.getElementsByTag("tr");
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//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
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//boolean passedTidsstreg = false;
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for (Element currentRow : tableRows) {
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String rowClass = currentRow.attr("class");
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/*
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if (tidsstregExists == true && passedTidsstreg == false) {
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if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
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passedTidsstreg = true;
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} else {
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continue;
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}
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}*/
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if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
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Elements fields = currentRow.getElementsByTag("td");
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DepartureEntry departure = new DepartureEntry();
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String time = fields.get(0).text();
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if (time.equals(""))
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time = "0:00"; //Bane.dk bug work-around
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departure.setTime(time);
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int updated = extractUpdated( fields.get(1) );
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departure.setUpdated(updated);
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String trainNumber = fields.get(2).text();
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if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber
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trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));
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departure.setTrainNumber(trainNumber);
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String destination = fields.get(3).text();
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departure.setDestination(destination);
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String origin = fields.get(4).text();
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departure.setOrigin(origin);
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String location = fields.get(5).text();
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departure.setLocation(location);
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String status = fields.get(6).text().trim();
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departure.setStatus(status);
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String note = extractNote( fields.get(7) );
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departure.setNote(note);
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departure.setType(typeString);
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departureBean.entries.add( departure );
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}
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}
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} else {
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logger.warning("No departures found for station=" + stationcode + ", type=" + type);
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}
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Element notifDiv = page.getElementById("station_planlagte_text");
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if (notifDiv != null) {
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Elements tables = notifDiv.getElementsByTag("table");
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for (Element tab : tables) {
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Elements anchors = tab.getElementsByTag("a");
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if (anchors.size() == 2) {
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departureBean.notifications.add( anchors.get(1).text() );
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}
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}
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}
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return departureBean;
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}
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public DepartureBean lookupDeparturesMobileSite(String stationcode, TrainType traintype, boolean arrival) throws Exception {
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DepartureBean departureBean = new DepartureBean();
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String typeString = getTypeStringWww(traintype);
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String arrivalDeparture = (arrival==false) ? "afgang" : "ankomst";
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stationcode = URLEncoder.encode(stationcode,"ISO-8859-1");
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//String uri = "http://trafikinfo.bane.dk/Trafikinformation/AfgangAnkomst/" + arrivalDeparture + "/" + stationcode + "/" + typeString + "/UdvidetVisning";
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String uri = "http://mobil.bane.dk/mobilStation.asp?artikelID=5332&stat_kode=" + stationcode + "&webprofil=" + typeString +"&beskrivelse=&mode=ankomstafgang&ankomstafgang=" + arrivalDeparture + "&gemstation=&fuldvisning=1";
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logger.fine("URI: " + uri);
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JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
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CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
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Document page = (Document) breaker.invoke(wrapper);
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Element content = page.getElementsByClass("contentDiv").get(0);
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if (content != null) {
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Elements tableRows = content.child(0).children();
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for (Element currentRow : tableRows) {
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if (currentRow.tagName().equals("br") ) {
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break;
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}
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String link = currentRow.child(0).attr("href");
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logger.fine( currentRow.text() );
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logger.fine("Href: " + link);
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String parts[] = currentRow.text().split(",");
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DepartureEntry departure = new DepartureEntry();
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//if we do these things upfront, then we are allowed to use continue statement when row contains no more data
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departure.setType(typeString);
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departureBean.entries.add( departure );
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/*
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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
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*/
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int offset = 0;
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String time = parts[offset++];
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if (time.equals(""))
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time = "0:00"; //Bane.dk bug work-around
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departure.setTime(time);
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int updated = 4; //does not exist on mobile
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departure.setUpdated(updated);
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String trainNumber = extractTrainNumberMobile(link);
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/*if (traintype == TrainType.STOG) //If it is S-train we need to extract the trainNumber
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trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2));*/
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departure.setTrainNumber(trainNumber);
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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
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String stogLine = parts[offset++].trim();
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departure.setTrainNumber(stogLine + " " + trainNumber);
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}
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String destination = parts[offset++].trim();;
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departure.setDestination(destination);
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String origin = "-"; // fields.get(4).text(); does not exist on mobile
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departure.setOrigin(origin);
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String location = ""; // fields.get(5).text(); does not exist on mobile
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departure.setLocation(location);
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if (offset == parts.length) {
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continue;
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}
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if (parts[offset].trim().equalsIgnoreCase("NB!")) {
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offset++;
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}
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if (offset == parts.length) {
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continue;
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}
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String status = parts[offset++].trim();; //fields.get(6).text().trim(); - extract from url
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departure.setStatus(status);
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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 |
torben |
1038 |
|
340 |
|
|
|
341 |
torben |
1330 |
|
342 |
torben |
1040 |
public static String cleanText(String input) {
|
343 |
|
|
//apparently JSoup translates characters on www.bane.dk to 0xA0
|
344 |
torben |
1038 |
return input.replace((char) 0xA0, (char)0x20).trim();
|
345 |
|
|
}
|
346 |
|
|
|
347 |
torben |
1330 |
|
348 |
|
|
// old www site is not available any more
|
349 |
|
|
@Deprecated
|
350 |
torben |
1034 |
public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception {
|
351 |
torben |
580 |
|
352 |
torben |
1034 |
DepartureBean departureBean = new DepartureBean();
|
353 |
torben |
580 |
|
354 |
torben |
1034 |
String type = getTypeStringWww(trainType);
|
355 |
|
|
|
356 |
torben |
1045 |
stationcode = URLEncoder.encode(stationcode, "ISO-8859-1");
|
357 |
|
|
|
358 |
torben |
1034 |
|
359 |
|
|
String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode;
|
360 |
torben |
1048 |
logger.fine("URI:" + uri);
|
361 |
|
|
|
362 |
torben |
1047 |
|
363 |
torben |
1303 |
JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), settings.getReplyTimeout() );
|
364 |
torben |
580 |
CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk");
|
365 |
|
|
|
366 |
torben |
1034 |
Element page = (Element) breaker.invoke(wrapper);
|
367 |
torben |
580 |
|
368 |
torben |
1034 |
String tableName = arrival == false ? "afgangtabel" : "ankomsttabel";
|
369 |
|
|
Element table = page.getElementById(tableName);
|
370 |
torben |
580 |
|
371 |
torben |
1046 |
|
372 |
|
|
|
373 |
torben |
1034 |
if (table != null) {
|
374 |
|
|
Elements tableRows = table.getElementsByTag("tr");
|
375 |
torben |
580 |
|
376 |
torben |
1188 |
//boolean passedTidsstreg = false;
|
377 |
|
|
//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0);
|
378 |
torben |
1046 |
|
379 |
torben |
1034 |
for (Element currentRow : tableRows) {
|
380 |
|
|
String rowClass = currentRow.attr("class");
|
381 |
torben |
1188 |
/*
|
382 |
torben |
1046 |
if (tidsstregExists == true && passedTidsstreg == false) {
|
383 |
|
|
if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) {
|
384 |
|
|
passedTidsstreg = true;
|
385 |
|
|
} else {
|
386 |
|
|
continue;
|
387 |
|
|
}
|
388 |
torben |
1188 |
}*/
|
389 |
torben |
1046 |
|
390 |
|
|
|
391 |
torben |
1034 |
if (rowClass != null && rowClass.toLowerCase().contains("station") ) {
|
392 |
|
|
Elements fields = currentRow.getElementsByTag("td");
|
393 |
|
|
|
394 |
|
|
DepartureEntry departure = new DepartureEntry();
|
395 |
|
|
|
396 |
|
|
|
397 |
|
|
|
398 |
torben |
1038 |
String time = cleanText( fields.get(0).getAllElements().get(2).text() );
|
399 |
torben |
1034 |
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 |
torben |
1038 |
String trainNumber = cleanText( fields.get(2).text() );
|
407 |
torben |
1034 |
if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber
|
408 |
torben |
1039 |
trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2));
|
409 |
torben |
1034 |
departure.setTrainNumber(trainNumber);
|
410 |
|
|
|
411 |
torben |
1038 |
String destination = cleanText( fields.get(3).text() );
|
412 |
torben |
1034 |
departure.setDestination(destination);
|
413 |
|
|
|
414 |
torben |
1038 |
String origin = cleanText( fields.get(4).text() );
|
415 |
torben |
1034 |
departure.setOrigin(origin);
|
416 |
|
|
|
417 |
torben |
1038 |
String location = cleanText( fields.get(5).text() );
|
418 |
torben |
1034 |
departure.setLocation(location);
|
419 |
|
|
|
420 |
torben |
1038 |
String status = cleanText( fields.get(6).text() );
|
421 |
torben |
1034 |
departure.setStatus(status);
|
422 |
|
|
|
423 |
torben |
1038 |
String note = cleanText( extractNote( fields.get(7) ) );
|
424 |
torben |
1034 |
departure.setNote(note);
|
425 |
|
|
|
426 |
|
|
departure.setType(type);
|
427 |
|
|
|
428 |
torben |
1063 |
departureBean.entries.add(departure);
|
429 |
torben |
1034 |
|
430 |
|
|
|
431 |
torben |
580 |
}
|
432 |
|
|
}
|
433 |
|
|
} else {
|
434 |
|
|
logger.warning("No departures found for station=" + stationcode + ", type=" + type);
|
435 |
|
|
}
|
436 |
|
|
|
437 |
torben |
591 |
|
438 |
torben |
1034 |
return departureBean;
|
439 |
|
|
}
|
440 |
|
|
|
441 |
torben |
580 |
|
442 |
torben |
992 |
private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif"
|
443 |
torben |
305 |
int updated = -1;
|
444 |
|
|
|
445 |
torben |
992 |
Elements updatedImgs = updatedTd.getElementsByTag("img");
|
446 |
|
|
String updatedStr = updatedImgs.get(0).attr("src");
|
447 |
torben |
305 |
|
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 |
torben |
992 |
private String extractNote(Element noteTd) {
|
461 |
|
|
String note = noteTd.text().trim();
|
462 |
torben |
313 |
|
463 |
torben |
992 |
|
464 |
|
|
Elements elems = noteTd.getElementsByClass("bemtype");
|
465 |
torben |
313 |
if (elems.size() > 0 && note.charAt(note.length()-1) == 'i')
|
466 |
|
|
note = note.substring(0,note.length() -1 );
|
467 |
|
|
|
468 |
torben |
1038 |
return note.trim();
|
469 |
torben |
313 |
}
|
470 |
|
|
|
471 |
torben |
1039 |
private String extractTrainNumberAzure(Element trainTd) {
|
472 |
torben |
992 |
Element anchorElement = trainTd.getElementsByTag("a").get(0);
|
473 |
|
|
String href = anchorElement.attr("href");
|
474 |
torben |
349 |
|
475 |
torben |
973 |
int pos = href.lastIndexOf('/');
|
476 |
|
|
String number = href.substring(pos+1);
|
477 |
torben |
970 |
|
478 |
torben |
349 |
return number;
|
479 |
|
|
}
|
480 |
|
|
|
481 |
torben |
1366 |
private String extractTrainNumberMobile(String link) {
|
482 |
|
|
Map<String,String> elements = HttpUtil.decodeParams(link);
|
483 |
|
|
|
484 |
|
|
return elements.get("tognummer");
|
485 |
|
|
}
|
486 |
|
|
|
487 |
torben |
1039 |
private String extractTrainNumberWww(Element trainTd) {
|
488 |
|
|
String number = "";
|
489 |
|
|
Element anchorElement = trainTd.getElementsByTag("a").get(0);
|
490 |
|
|
String href = anchorElement.attr("href");
|
491 |
torben |
1366 |
|
492 |
|
|
String argstring = href.split("?")[1];
|
493 |
|
|
Map<String,String> elements = HttpUtil.decodeParams(argstring);
|
494 |
|
|
number = elements.get("TogNr");
|
495 |
torben |
1039 |
|
496 |
torben |
1366 |
|
497 |
|
|
/*String argstring = href.substring( href.indexOf('?') + 1);
|
498 |
torben |
1039 |
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 |
torben |
1366 |
}*/
|
505 |
|
|
|
506 |
torben |
1039 |
|
507 |
|
|
return number;
|
508 |
|
|
}
|
509 |
|
|
|
510 |
|
|
|
511 |
torben |
305 |
//test
|
512 |
torben |
580 |
/*
|
513 |
torben |
451 |
public static void main(String args[]) throws Exception {
|
514 |
torben |
305 |
DepartureFetcher f = new DepartureFetcher();
|
515 |
torben |
307 |
List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN");
|
516 |
torben |
305 |
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 |
torben |
580 |
}*/
|
523 |
torben |
305 |
}
|