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package dk.thoerup.traininfoservice.banedk; |
package dk.thoerup.traininfoservice.banedk; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
import java.net.URL; |
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import java.sql.Statement; |
import java.net.URLEncoder; |
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import java.util.ArrayList; |
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import java.util.Collections; |
import java.util.Collections; |
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import java.util.List; |
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import java.util.Map; |
import java.util.Map; |
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import java.util.logging.Logger; |
import java.util.logging.Logger; |
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import com.gargoylesoftware.htmlunit.WebClient; |
import org.jsoup.nodes.Document; |
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import com.gargoylesoftware.htmlunit.html.DomNodeList; |
import org.jsoup.nodes.Element; |
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import com.gargoylesoftware.htmlunit.html.HtmlElement; |
import org.jsoup.select.Elements; |
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import com.gargoylesoftware.htmlunit.html.HtmlPage; |
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import dk.thoerup.android.traininfo.common.DepartureBean; |
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import dk.thoerup.curcuitbreaker.CircuitBreaker; |
import dk.thoerup.android.traininfo.common.DepartureEntry; |
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import dk.thoerup.curcuitbreaker.CircuitBreakerManager; |
import dk.thoerup.android.traininfo.common.StationEntry; |
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import dk.thoerup.traininfoservice.DBConnection; |
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 { |
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()); |
Logger logger = Logger.getLogger(DepartureFetcher.class.getName()); |
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Map<Integer, List<DepartureBean>> cache = new TimeoutMap<Integer,List<DepartureBean>>(120 * 1000); |
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 List<DepartureBean> cachedLookupDepartures(int stationID) throws Throwable { |
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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List<DepartureBean> list = cache.get(stationID); |
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if (list == null) { |
if (departureBean == null) { |
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list = lookupDepartures(stationID); |
departureBean = lookupDepartures(stationID, arrival, type); |
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cache.put(stationID, list); |
cache.put(key, departureBean); |
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} else { |
} else { |
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logger.info("Departure: Cache hit " + stationID); //remove before production |
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 list; |
return departureBean; |
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} |
} |
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public List<DepartureBean> lookupDepartures(int stationID) throws Throwable { |
public DepartureBean lookupDepartures(int stationID, boolean arrival, FetchTrainType type) throws Exception { |
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List<DepartureBean> departureList = new ArrayList<DepartureBean>(); |
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Connection conn = null; |
DepartureBean departureBean = new DepartureBean(); |
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try |
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{ |
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conn = DBConnection.getConnection(); |
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String SQL = "SELECT stationcode_fjrn, stationcode_stog FROM trainstations WHERE id=" + stationID; |
StationEntry station = stationDao.getById(stationID); |
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Statement stmt = conn.createStatement(); |
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ResultSet rs = stmt.executeQuery(SQL); |
departureBean.stationName = station.getName(); |
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if (rs.next()) { |
//TODO: FetchTraintype.Both should be removed some time after 0.9.5 release |
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String code = rs.getString( 1 ); |
if (station.getRegional() != null && (type == FetchTrainType.REGIONAL||type == FetchTrainType.BOTH) ) { |
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if (! rs.wasNull() ) { |
DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival); |
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List<DepartureBean> list = lookupDepartures(code, "FJRN"); |
departureBean.entries.addAll( tempBean.entries ); |
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departureList.addAll(list); |
departureBean.notifications.addAll(tempBean.notifications); |
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} |
} |
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code = rs.getString(2); |
if (station.getStrain() != null && (type == FetchTrainType.STOG||type == FetchTrainType.BOTH)) { |
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if (! rs.wasNull() ) { |
DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival); |
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List<DepartureBean> list = lookupDepartures(code, "S2"); |
departureBean.entries.addAll( tempBean.entries ); |
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departureList.addAll(list); |
departureBean.notifications.addAll(tempBean.notifications); |
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} |
} |
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Collections.sort( departureList ); |
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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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} finally { |
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if (conn != null && !conn.isClosed() ) { |
//TODO: FetchTraintype.Both should be removed some time after 0.9.5 release |
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conn.close(); |
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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return departureList; |
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://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 |
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departure.setNote(note); |
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} |
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} else { |
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logger.warning("No departures found for station=" + stationcode + ", type=" + traintype); |
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} |
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return departureBean; |
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} |
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public static String cleanText(String input) { |
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//apparently JSoup translates characters on www.bane.dk to 0xA0 |
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return input.replace((char) 0xA0, (char)0x20).trim(); |
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} |
} |
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public List<DepartureBean> lookupDepartures(String stationcode, String type) throws Throwable { |
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// old www site is not available any more |
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@Deprecated |
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public DepartureBean lookupDeparturesWwwSite(String stationcode, TrainType trainType, boolean arrival) throws Exception { |
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DepartureBean departureBean = new DepartureBean(); |
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List<DepartureBean> departureList = new ArrayList<DepartureBean>(); |
String type = getTypeStringWww(trainType); |
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final WebClient webClient = new WebClient(); |
stationcode = URLEncoder.encode(stationcode, "ISO-8859-1"); |
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webClient.setTimeout(2500); |
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webClient.setJavaScriptEnabled(false); |
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String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode; |
String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode; |
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BanedkInvocation wrapper = new BanedkInvocation(webClient, uri); |
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"); |
CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); |
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368 |
HtmlPage page = (HtmlPage) breaker.invoke(wrapper); |
Element page = (Element) breaker.invoke(wrapper); |
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HtmlElement table = page.getElementById("afgangtabel"); |
String tableName = arrival == false ? "afgangtabel" : "ankomsttabel"; |
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Element table = page.getElementById(tableName); |
372 |
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373 |
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374 |
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if (table != null) { |
if (table != null) { |
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DomNodeList<HtmlElement> tableRows = table.getElementsByTagName("tr"); |
Elements tableRows = table.getElementsByTag("tr"); |
377 |
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378 |
for (HtmlElement currentRow : tableRows) { |
//boolean passedTidsstreg = false; |
379 |
String rowClass = currentRow.getAttribute("class"); |
//boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0); |
380 |
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381 |
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for (Element currentRow : tableRows) { |
382 |
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String rowClass = currentRow.attr("class"); |
383 |
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/* |
384 |
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if (tidsstregExists == true && passedTidsstreg == false) { |
385 |
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if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) { |
386 |
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passedTidsstreg = true; |
387 |
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} else { |
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continue; |
389 |
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} |
390 |
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}*/ |
391 |
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392 |
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393 |
if (rowClass != null && rowClass.toLowerCase().contains("station") ) { |
if (rowClass != null && rowClass.toLowerCase().contains("station") ) { |
394 |
DomNodeList<HtmlElement> fields = currentRow.getElementsByTagName("td"); |
Elements fields = currentRow.getElementsByTag("td"); |
395 |
|
|
396 |
DepartureBean departure = new DepartureBean(); |
DepartureEntry departure = new DepartureEntry(); |
397 |
|
|
398 |
|
|
399 |
|
|
400 |
String time = fields.get(0).asText(); |
String time = cleanText( fields.get(0).getAllElements().get(2).text() ); |
401 |
if (time.equals("")) |
if (time.equals("")) |
402 |
time = "0:00"; //Bane.dk bug work-around |
time = "0:00"; //Bane.dk bug work-around |
403 |
departure.setTime(time); |
departure.setTime(time); |
405 |
int updated = extractUpdated( fields.get(1) ); |
int updated = extractUpdated( fields.get(1) ); |
406 |
departure.setUpdated(updated); |
departure.setUpdated(updated); |
407 |
|
|
408 |
String trainNumber = fields.get(2).asText(); |
String trainNumber = cleanText( fields.get(2).text() ); |
409 |
if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber |
if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber |
410 |
trainNumber = trainNumber + " " + extractTrainNumber(fields.get(2)); |
trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2)); |
411 |
departure.setTrainNumber(trainNumber); |
departure.setTrainNumber(trainNumber); |
412 |
|
|
413 |
String destination = fields.get(3).asText(); |
String destination = cleanText( fields.get(3).text() ); |
414 |
departure.setDestination(destination); |
departure.setDestination(destination); |
415 |
|
|
416 |
String origin = fields.get(4).asText(); |
String origin = cleanText( fields.get(4).text() ); |
417 |
departure.setOrigin(origin); |
departure.setOrigin(origin); |
418 |
|
|
419 |
String location = fields.get(5).asText(); |
String location = cleanText( fields.get(5).text() ); |
420 |
departure.setLocation(location); |
departure.setLocation(location); |
421 |
|
|
422 |
String status = fields.get(6).asText(); |
String status = cleanText( fields.get(6).text() ); |
423 |
departure.setStatus(status); |
departure.setStatus(status); |
424 |
|
|
425 |
String note = extractNote( fields.get(7) ); |
String note = cleanText( extractNote( fields.get(7) ) ); |
426 |
departure.setNote(note); |
departure.setNote(note); |
427 |
|
|
428 |
departureList.add(departure); |
departure.setType(type); |
429 |
|
|
430 |
|
departureBean.entries.add(departure); |
431 |
|
|
432 |
|
|
433 |
} |
} |
434 |
} |
} |
435 |
} else { |
} else { |
436 |
logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
437 |
} |
} |
438 |
|
|
439 |
return departureList; |
|
440 |
|
return departureBean; |
441 |
} |
} |
442 |
|
|
443 |
|
|
444 |
private int extractUpdated(HtmlElement updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif" |
private int extractUpdated(Element updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif" |
445 |
int updated = -1; |
int updated = -1; |
446 |
|
|
447 |
DomNodeList<HtmlElement> updatedImgs = updatedTd.getElementsByTagName("img"); |
Elements updatedImgs = updatedTd.getElementsByTag("img"); |
448 |
String updatedStr = updatedImgs.get(0).getAttribute("src"); |
String updatedStr = updatedImgs.get(0).attr("src"); |
449 |
|
|
450 |
if (updatedStr != null) { |
if (updatedStr != null) { |
451 |
for (int i=0; i<updatedStr.length(); i++) { |
for (int i=0; i<updatedStr.length(); i++) { |
459 |
return updated; |
return updated; |
460 |
} |
} |
461 |
|
|
462 |
private String extractNote(HtmlElement noteTd) { |
private String extractNote(Element noteTd) { |
463 |
String note = noteTd.asText().trim(); |
String note = noteTd.text().trim(); |
464 |
|
|
465 |
|
|
466 |
List<HtmlElement> elems = noteTd.getElementsByAttribute("span", "class", "bemtype"); |
Elements elems = noteTd.getElementsByClass("bemtype"); |
467 |
if (elems.size() > 0 && note.charAt(note.length()-1) == 'i') |
if (elems.size() > 0 && note.charAt(note.length()-1) == 'i') |
468 |
note = note.substring(0,note.length() -1 ); |
note = note.substring(0,note.length() -1 ); |
469 |
|
|
470 |
return note; |
return note.trim(); |
471 |
|
} |
472 |
|
|
473 |
|
private String extractTrainNumberAzure(Element trainTd) { |
474 |
|
Element anchorElement = trainTd.getElementsByTag("a").get(0); |
475 |
|
String href = anchorElement.attr("href"); |
476 |
|
|
477 |
|
int pos = href.lastIndexOf('/'); |
478 |
|
String number = href.substring(pos+1); |
479 |
|
|
480 |
|
return number; |
481 |
} |
} |
482 |
|
|
483 |
private String extractTrainNumber(HtmlElement trainTd) { |
private String extractTrainNumberMobile(String link) { |
484 |
|
Map<String,String> elements = HttpUtil.decodeParams(link); |
485 |
|
|
486 |
|
return elements.get("tognummer"); |
487 |
|
} |
488 |
|
|
489 |
|
private String extractTrainNumberWww(Element trainTd) { |
490 |
String number = ""; |
String number = ""; |
491 |
HtmlElement anchorElement = trainTd.getElementsByTagName("a").get(0); |
Element anchorElement = trainTd.getElementsByTag("a").get(0); |
492 |
String href = anchorElement.getAttribute("href"); |
String href = anchorElement.attr("href"); |
493 |
String argstring = href.substring( href.indexOf('?') + 1); |
|
494 |
|
String argstring = href.split("?")[1]; |
495 |
|
Map<String,String> elements = HttpUtil.decodeParams(argstring); |
496 |
|
number = elements.get("TogNr"); |
497 |
|
|
498 |
|
|
499 |
|
/*String argstring = href.substring( href.indexOf('?') + 1); |
500 |
String args[] = argstring.split("&"); |
String args[] = argstring.split("&"); |
501 |
for (String arg : args) { |
for (String arg : args) { |
502 |
String pair[] = arg.split("="); // Key=pair[0], Value=pair[1] |
String pair[] = arg.split("="); // Key=pair[0], Value=pair[1] |
503 |
|
|
504 |
if (pair[0].equalsIgnoreCase("TogNr")) |
if (pair[0].equalsIgnoreCase("TogNr")) |
505 |
number = pair[1]; |
number = pair[1]; |
506 |
} |
}*/ |
507 |
|
|
|
|
|
508 |
|
|
509 |
return number; |
return number; |
510 |
} |
} |
511 |
|
|
512 |
|
|
513 |
//test |
//test |
514 |
public static void main(String args[]) throws Throwable { |
/* |
515 |
|
public static void main(String args[]) throws Exception { |
516 |
DepartureFetcher f = new DepartureFetcher(); |
DepartureFetcher f = new DepartureFetcher(); |
517 |
List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN"); |
List<DepartureBean> deps = f.lookupDepartures("AR", "FJRN"); |
518 |
for(DepartureBean d : deps) { |
for(DepartureBean d : deps) { |
521 |
} |
} |
522 |
|
|
523 |
System.out.println("--------------------------"); |
System.out.println("--------------------------"); |
524 |
} |
}*/ |
525 |
} |
} |