--- android/TrainInfoService/src/dk/thoerup/traininfoservice/banedk/DepartureFetcher.java 2009/10/02 15:06:08 387 +++ android/TrainInfoService/src/dk/thoerup/traininfoservice/banedk/DepartureFetcher.java 2010/02/02 19:18:20 583 @@ -6,21 +6,30 @@ import java.util.ArrayList; import java.util.Collections; import java.util.List; +import java.util.Map; import java.util.logging.Logger; - import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.html.DomNodeList; import com.gargoylesoftware.htmlunit.html.HtmlElement; import com.gargoylesoftware.htmlunit.html.HtmlPage; +import dk.thoerup.circuitbreaker.CircuitBreaker; +import dk.thoerup.circuitbreaker.CircuitBreakerManager; import dk.thoerup.traininfoservice.DBConnection; public class DepartureFetcher { Logger logger = Logger.getLogger(DepartureFetcher.class.getName()); - TimeoutCache> cache = new TimeoutCache>(120 * 1000); + Map> cache = new TimeoutMap>(120 * 1000); + + private boolean useTempSite; + + public DepartureFetcher(boolean tempSite) { + useTempSite = tempSite; + } + @@ -29,11 +38,10 @@ List list = cache.get(stationID); if (list == null) { - logger.warning("Departure: Cache miss " + stationID); //remove before production list = lookupDepartures(stationID); cache.put(stationID, list); } else { - logger.warning("Departure: Cache hit " + stationID); //remove before production + logger.info("Departure: Cache hit " + stationID); //remove before production } return list; } @@ -77,6 +85,14 @@ } public List lookupDepartures(String stationcode, String type) throws Exception { + if (useTempSite == false) { + return lookupDeparturesNormalSite(stationcode, type); + } else { + return lookupDeparturesFromTemporarySite(stationcode, type); + } + } + + public List lookupDeparturesNormalSite(String stationcode, String type) throws Exception { List departureList = new ArrayList(); @@ -84,8 +100,11 @@ webClient.setTimeout(2500); webClient.setJavaScriptEnabled(false); + String uri = "http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode; + BanedkInvocation wrapper = new BanedkInvocation(webClient, uri); + CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); - final HtmlPage page = webClient.getPage("http://www.bane.dk/visStation.asp?ArtikelID=4275&W=" + type + "&S=" + stationcode); + HtmlPage page = (HtmlPage) breaker.invoke(wrapper); HtmlElement table = page.getElementById("afgangtabel"); @@ -108,7 +127,7 @@ departure.setUpdated(updated); String trainNumber = fields.get(2).asText(); - if (trainNumber.trim().length() == 1) + if (type.equalsIgnoreCase("S2")) //If it is S-train we need to extract the trainNumber trainNumber = trainNumber + " " + extractTrainNumber(fields.get(2)); departure.setTrainNumber(trainNumber); @@ -137,6 +156,71 @@ return departureList; } + public List lookupDeparturesFromTemporarySite(String stationcode, String type) throws Exception { + + List departureList = new ArrayList(); + + final WebClient webClient = new WebClient(); + webClient.setTimeout(2500); + webClient.setJavaScriptEnabled(false); + + + String uri = "http://bane.dk/lite/station.asp?w=" + type + "&s=" + stationcode; + + BanedkInvocation wrapper = new BanedkInvocation(webClient, uri); + CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("banedk"); + + HtmlPage page = (HtmlPage) breaker.invoke(wrapper); + + HtmlElement table = page.getElementById("traf_afgang"); + + if (table != null) { + DomNodeList tableRows = table.getElementsByTagName("tr"); + + boolean isFirst = true; + + for (HtmlElement currentRow : tableRows) { + if (isFirst == true) { //skip table headers + isFirst = false; + continue; + } + + DomNodeList fields = currentRow.getElementsByTagName("td"); + + DepartureBean departure = new DepartureBean(); + + String time = fields.get(0).asText().trim(); + + if (time.equals("")) + time = "0:00"; //Bane.dk bug work-around + departure.setTime(time); + + + String trainNumber = fields.get(1).asText(); + departure.setTrainNumber(trainNumber); + + String destination = fields.get(2).asText(); + departure.setDestination(destination); + + String origin = fields.get(3).asText(); + departure.setOrigin(origin); + + String status = fields.get(4).asText(); + departure.setStatus(status); + + String note = fields.get(5).asText(); + departure.setNote(note); + + departureList.add(departure); + } + } else { + logger.warning("No departures found for station=" + stationcode + ", type=" + type); + } + + return departureList; + } + + private int extractUpdated(HtmlElement updatedTd) { //extract the digit (in this case: 4) from "media/trafikinfo/opdater4.gif" int updated = -1; @@ -185,7 +269,8 @@ } //test - public static void main(String args[]) throws Exception{ + /* + public static void main(String args[]) throws Exception { DepartureFetcher f = new DepartureFetcher(); List deps = f.lookupDepartures("AR", "FJRN"); for(DepartureBean d : deps) { @@ -194,5 +279,5 @@ } System.out.println("--------------------------"); - } + }*/ }