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package dk.thoerup.traininfoservice.banedk; |
package dk.thoerup.traininfoservice.banedk; |
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import java.util.ArrayList; |
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import java.net.URL; |
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import java.net.URLEncoder; |
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import java.util.Collections; |
import java.util.Collections; |
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import java.util.List; |
import java.util.HashMap; |
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import java.util.Map; |
import java.util.Map; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
import java.util.logging.Logger; |
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import com.gargoylesoftware.htmlunit.BrowserVersion; |
import net.sf.jsr107cache.Cache; |
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import com.gargoylesoftware.htmlunit.WebClient; |
import net.sf.jsr107cache.CacheException; |
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import com.gargoylesoftware.htmlunit.html.DomNodeList; |
import net.sf.jsr107cache.CacheManager; |
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import com.gargoylesoftware.htmlunit.html.HtmlElement; |
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import com.gargoylesoftware.htmlunit.html.HtmlPage; |
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 com.google.appengine.api.memcache.jsr107cache.GCacheFactory; |
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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; |
import dk.thoerup.circuitbreaker.CircuitBreaker; |
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import dk.thoerup.circuitbreaker.CircuitBreakerManager; |
import dk.thoerup.circuitbreaker.CircuitBreakerManager; |
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import dk.thoerup.traininfoservice.StationBean; |
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import dk.thoerup.traininfoservice.StationDAO; |
import dk.thoerup.traininfoservice.StationDAO; |
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import dk.thoerup.traininfoservice.Statistics; |
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public class DepartureFetcher { |
public class DepartureFetcher { |
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Logger logger = Logger.getLogger(DepartureFetcher.class.getName()); |
enum TrainType{ |
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STOG, |
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REGIONAL |
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} |
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Cache cache; |
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Map<Integer, List<DepartureBean>> cache; |
Logger logger = Logger.getLogger(DepartureFetcher.class.getName()); |
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StationDAO stationDao = new StationDAO(); |
StationDAO stationDao = new StationDAO(); |
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private boolean useTempSite; |
private boolean useAzureSite; |
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private int replyTimeout; |
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public DepartureFetcher(boolean tempSite, int cacheTimeout) { |
@SuppressWarnings("unchecked") |
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useTempSite = tempSite; |
public DepartureFetcher(boolean azureSite, int cacheTimeout, int replyTimeout) { |
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cache = new TimeoutMap<Integer,List<DepartureBean>>(cacheTimeout); |
this.replyTimeout = replyTimeout; |
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useAzureSite = azureSite; |
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Map props = new HashMap(); |
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props.put(GCacheFactory.EXPIRATION_DELTA_MILLIS, cacheTimeout); |
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try { |
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cache = CacheManager.getInstance().getCacheFactory().createCache(props); |
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} catch (CacheException e) { |
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logger.log(Level.WARNING, "error creating cache", e); |
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} |
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} |
} |
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public List<DepartureBean> cachedLookupDepartures(int stationID) throws Exception { |
public DepartureBean cachedLookupDepartures(int stationID, boolean arrival) throws Exception { |
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final String key = "departure:" + stationID + ":" + arrival; |
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List<DepartureBean> list = cache.get(stationID); |
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DepartureBean departureBean = (DepartureBean) cache.get(key); |
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if (list == null) { |
if (departureBean == null) { |
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list = lookupDepartures(stationID); |
departureBean = lookupDepartures(stationID,arrival); |
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cache.put(stationID, list); |
cache.put(key, departureBean); |
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logger.info("Departure: Cache miss " + key + " !!! "); //remove before production |
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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); |
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} |
} |
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return list; |
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return departureBean; |
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} |
} |
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public List<DepartureBean> lookupDepartures(int stationID) throws Exception { |
public DepartureBean lookupDepartures(int stationID, boolean arrival) throws Exception { |
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List<DepartureBean> departureList = new ArrayList<DepartureBean>(); |
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DepartureBean departureBean = new DepartureBean(); |
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StationEntry station = stationDao.getById(stationID); |
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StationBean station = stationDao.getById(stationID); |
departureBean.stationName = station.getName(); |
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if (station.getRegional() != null) { |
if (station.getRegional() != null) { |
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List<DepartureBean> list = lookupDepartures(station.getRegional(), "FJRN"); |
DepartureBean tempBean = lookupDepartures(station.getRegional(), TrainType.REGIONAL, arrival); |
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departureList.addAll(list); |
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) { |
if (station.getStrain() != null) { |
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List<DepartureBean> list = lookupDepartures(station.getStrain(), "S2"); |
DepartureBean tempBean = lookupDepartures(station.getStrain(), TrainType.STOG, arrival); |
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departureList.addAll(list); |
departureBean.entries.addAll( tempBean.entries ); |
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departureBean.notifications.addAll(tempBean.notifications); |
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} |
} |
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Collections.sort( departureList ); |
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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Collections.sort( departureBean.entries ); |
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return departureList; |
return departureBean; |
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} |
} |
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public List<DepartureBean> lookupDepartures(String stationcode, String type) throws Exception { |
public DepartureBean lookupDepartures(String stationcode, TrainType type, boolean arrival) throws Exception { |
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if (useTempSite == false) { |
if (useAzureSite == true) { |
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return lookupDeparturesNormalSite(stationcode, type); |
return lookupDeparturesAzureSite(stationcode, type, arrival); |
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} else { |
} else { |
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return lookupDeparturesFromTemporarySite(stationcode, type); |
return lookupDeparturesWwwSite(stationcode, type, arrival); |
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} |
} |
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} |
} |
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public List<DepartureBean> lookupDeparturesNormalSite(String stationcode, String type) throws Exception { |
private String getTypeStringAzure(TrainType type) { |
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switch (type) { |
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List<DepartureBean> departureList = new ArrayList<DepartureBean>(); |
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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final WebClient webClient = new WebClient( BrowserVersion.FIREFOX_3 ); |
DepartureBean departureBean = new DepartureBean(); |
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webClient.setTimeout(2500); |
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webClient.setJavaScriptEnabled(false); |
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String typeString = getTypeStringAzure(type); |
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String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode; |
String arrivalDeparture = (arrival==false) ? "Afgang" : "Ankomst"; |
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BanedkInvocation wrapper = new BanedkInvocation(webClient, uri); |
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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), replyTimeout); |
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CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); |
CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); |
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HtmlPage page = (HtmlPage) breaker.invoke(wrapper); |
Document page = (Document) 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); |
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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"); |
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boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0); |
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boolean passedTidsstreg = false; |
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for (HtmlElement currentRow : tableRows) { |
for (Element currentRow : tableRows) { |
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String rowClass = currentRow.getAttribute("class"); |
String rowClass = currentRow.attr("class"); |
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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") ) { |
if (rowClass != null && rowClass.toLowerCase().contains("station") ) { |
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DomNodeList<HtmlElement> fields = currentRow.getElementsByTagName("td"); |
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Elements fields = currentRow.getElementsByTag("td"); |
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DepartureBean departure = new DepartureBean(); |
DepartureEntry departure = new DepartureEntry(); |
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String time = fields.get(0).asText(); |
String time = fields.get(0).text(); |
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if (time.equals("")) |
if (time.equals("")) |
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time = "0:00"; //Bane.dk bug work-around |
time = "0:00"; //Bane.dk bug work-around |
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departure.setTime(time); |
departure.setTime(time); |
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int updated = extractUpdated( fields.get(1) ); |
int updated = extractUpdated( fields.get(1) ); |
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departure.setUpdated(updated); |
departure.setUpdated(updated); |
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String trainNumber = fields.get(2).asText(); |
String trainNumber = fields.get(2).text(); |
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if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber |
if (type == TrainType.STOG) //If it is S-train we need to extract the trainNumber |
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trainNumber = trainNumber + " " + extractTrainNumber(fields.get(2)); |
trainNumber = trainNumber + " " + extractTrainNumberAzure(fields.get(2)); |
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departure.setTrainNumber(trainNumber); |
departure.setTrainNumber(trainNumber); |
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String destination = fields.get(3).asText(); |
String destination = fields.get(3).text(); |
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departure.setDestination(destination); |
departure.setDestination(destination); |
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String origin = fields.get(4).asText(); |
String origin = fields.get(4).text(); |
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departure.setOrigin(origin); |
departure.setOrigin(origin); |
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String location = fields.get(5).asText(); |
String location = fields.get(5).text(); |
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departure.setLocation(location); |
departure.setLocation(location); |
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String status = fields.get(6).asText(); |
String status = fields.get(6).text().trim(); |
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departure.setStatus(status); |
departure.setStatus(status); |
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String note = extractNote( fields.get(7) ); |
String note = extractNote( fields.get(7) ); |
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departure.setNote(note); |
departure.setNote(note); |
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departureList.add(departure); |
departure.setType(typeString); |
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departureBean.entries.add( departure ); |
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} |
} |
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} |
} |
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} else { |
} else { |
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logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
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} |
} |
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webClient.closeAllWindows(); |
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return departureList; |
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 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> lookupDeparturesFromTemporarySite(String stationcode, String type) throws Exception { |
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(BrowserVersion.FIREFOX_3); |
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; |
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logger.fine("URI:" + uri); |
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String uri = "http://bane.dk/lite/station.asp?w=" + type + "&s=" + stationcode; |
JsoupInvocation wrapper = new JsoupInvocation( new URL(uri), replyTimeout); |
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BanedkInvocation wrapper = new BanedkInvocation(webClient, uri); |
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CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); |
CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); |
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HtmlPage page = (HtmlPage) breaker.invoke(wrapper); |
Element page = (Element) breaker.invoke(wrapper); |
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HtmlElement table = page.getElementById("traf_afgang"); |
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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DomNodeList<HtmlElement> tableRows = table.getElementsByTagName("tr"); |
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if (table != null) { |
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Elements tableRows = table.getElementsByTag("tr"); |
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boolean isFirst = true; |
boolean passedTidsstreg = false; |
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boolean tidsstregExists = (table.getElementsByAttributeValue("class", "Tidsstreg").size() > 0); |
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for (HtmlElement currentRow : tableRows) { |
for (Element currentRow : tableRows) { |
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if (isFirst == true) { //skip table headers |
String rowClass = currentRow.attr("class"); |
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isFirst = false; |
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continue; |
if (tidsstregExists == true && passedTidsstreg == false) { |
282 |
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if (currentRow.getElementsByAttributeValue("class", "Tidsstreg").size() > 0) { |
283 |
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passedTidsstreg = true; |
284 |
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} else { |
285 |
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continue; |
286 |
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} |
287 |
} |
} |
288 |
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289 |
DomNodeList<HtmlElement> fields = currentRow.getElementsByTagName("td"); |
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if (rowClass != null && rowClass.toLowerCase().contains("station") ) { |
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DepartureBean departure = new DepartureBean(); |
Elements fields = currentRow.getElementsByTag("td"); |
292 |
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String time = fields.get(0).asText().trim(); |
DepartureEntry departure = new DepartureEntry(); |
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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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String trainNumber = fields.get(1).asText(); |
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departure.setTrainNumber(trainNumber); |
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String destination = fields.get(2).asText(); |
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departure.setDestination(destination); |
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String origin = fields.get(3).asText(); |
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departure.setOrigin(origin); |
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String status = fields.get(4).asText(); |
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departure.setStatus(status); |
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String note = fields.get(5).asText(); |
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departure.setNote(note); |
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departureList.add(departure); |
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String time = cleanText( fields.get(0).getAllElements().get(2).text() ); |
298 |
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if (time.equals("")) |
299 |
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time = "0:00"; //Bane.dk bug work-around |
300 |
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departure.setTime(time); |
301 |
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302 |
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int updated = extractUpdated( fields.get(1) ); |
303 |
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departure.setUpdated(updated); |
304 |
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305 |
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String trainNumber = cleanText( fields.get(2).text() ); |
306 |
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if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber |
307 |
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trainNumber = trainNumber + " " + extractTrainNumberWww(fields.get(2)); |
308 |
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departure.setTrainNumber(trainNumber); |
309 |
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310 |
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String destination = cleanText( fields.get(3).text() ); |
311 |
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departure.setDestination(destination); |
312 |
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String origin = cleanText( fields.get(4).text() ); |
314 |
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departure.setOrigin(origin); |
315 |
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316 |
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String location = cleanText( fields.get(5).text() ); |
317 |
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departure.setLocation(location); |
318 |
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String status = cleanText( fields.get(6).text() ); |
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departure.setStatus(status); |
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String note = cleanText( extractNote( fields.get(7) ) ); |
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departure.setNote(note); |
324 |
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departure.setType(type); |
326 |
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327 |
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departureBean.entries.add(departure); |
328 |
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329 |
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330 |
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} |
331 |
} |
} |
332 |
} else { |
} else { |
333 |
logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
logger.warning("No departures found for station=" + stationcode + ", type=" + type); |
334 |
} |
} |
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webClient.closeAllWindows(); |
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335 |
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336 |
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337 |
return departureList; |
return departureBean; |
338 |
} |
} |
339 |
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340 |
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341 |
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" |
342 |
int updated = -1; |
int updated = -1; |
343 |
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344 |
DomNodeList<HtmlElement> updatedImgs = updatedTd.getElementsByTagName("img"); |
Elements updatedImgs = updatedTd.getElementsByTag("img"); |
345 |
String updatedStr = updatedImgs.get(0).getAttribute("src"); |
String updatedStr = updatedImgs.get(0).attr("src"); |
346 |
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347 |
if (updatedStr != null) { |
if (updatedStr != null) { |
348 |
for (int i=0; i<updatedStr.length(); i++) { |
for (int i=0; i<updatedStr.length(); i++) { |
356 |
return updated; |
return updated; |
357 |
} |
} |
358 |
|
|
359 |
private String extractNote(HtmlElement noteTd) { |
private String extractNote(Element noteTd) { |
360 |
String note = noteTd.asText().trim(); |
String note = noteTd.text().trim(); |
361 |
|
|
362 |
|
|
363 |
List<HtmlElement> elems = noteTd.getElementsByAttribute("span", "class", "bemtype"); |
Elements elems = noteTd.getElementsByClass("bemtype"); |
364 |
if (elems.size() > 0 && note.charAt(note.length()-1) == 'i') |
if (elems.size() > 0 && note.charAt(note.length()-1) == 'i') |
365 |
note = note.substring(0,note.length() -1 ); |
note = note.substring(0,note.length() -1 ); |
366 |
|
|
367 |
return note; |
return note.trim(); |
368 |
} |
} |
369 |
|
|
370 |
private String extractTrainNumber(HtmlElement trainTd) { |
private String extractTrainNumberAzure(Element trainTd) { |
371 |
|
Element anchorElement = trainTd.getElementsByTag("a").get(0); |
372 |
|
String href = anchorElement.attr("href"); |
373 |
|
|
374 |
|
int pos = href.lastIndexOf('/'); |
375 |
|
String number = href.substring(pos+1); |
376 |
|
|
377 |
|
return number; |
378 |
|
} |
379 |
|
|
380 |
|
private String extractTrainNumberWww(Element trainTd) { |
381 |
String number = ""; |
String number = ""; |
382 |
HtmlElement anchorElement = trainTd.getElementsByTagName("a").get(0); |
Element anchorElement = trainTd.getElementsByTag("a").get(0); |
383 |
String href = anchorElement.getAttribute("href"); |
String href = anchorElement.attr("href"); |
384 |
String argstring = href.substring( href.indexOf('?') + 1); |
String argstring = href.substring( href.indexOf('?') + 1); |
385 |
|
|
386 |
String args[] = argstring.split("&"); |
String args[] = argstring.split("&"); |
394 |
|
|
395 |
return number; |
return number; |
396 |
} |
} |
397 |
|
|
398 |
|
|
399 |
//test |
//test |
400 |
/* |
/* |