--- android/TrainInfo/src/dk/thoerup/traininfo/provider/XmlDepartureProvider.java	2009/09/11 08:34:57	315
+++ android/TrainInfo/src/dk/thoerup/traininfo/provider/XmlDepartureProvider.java	2009/10/02 19:01:53	390
@@ -15,23 +15,56 @@
 
 import android.util.Log;
 import dk.thoerup.traininfo.DepartureBean;
+import dk.thoerup.traininfo.util.AndroidTimeoutCache;
 import dk.thoerup.traininfo.util.DownloadUtil;
+import dk.thoerup.traininfo.util.XmlUtil;
 
 public class XmlDepartureProvider extends DefaultHandler implements DepartureProvider {
 
-	ArrayList<DepartureBean> departures = new ArrayList<DepartureBean>();
+	final static int CACHE_TIMEOUT = 60*1000;
 	
+	class CacheEntry {
+		public long timestamp;
+		public List<DepartureBean> departures;
+	}
+	
+	
+	AndroidTimeoutCache<Integer,List<DepartureBean>> departureCache = new AndroidTimeoutCache<Integer,List<DepartureBean>>(CACHE_TIMEOUT); 
+	
+	List<DepartureBean> departures;
+		
 	
 	DepartureBean tempDeparture;
 	StringBuilder builder = new StringBuilder(512);
 	
 	@Override
-	public void lookupDepartures(int stationID) {
-		departures.clear();
+	public boolean lookupDepartures(int stationID) {		
+		boolean success;
+		
+		departures = departureCache.get(stationID);
+	
+		if (departures == null) {			
+			success = lookupDeparturesWorker(stationID);
+			
+			if (success) {			
+				departureCache.put(stationID, departures);
+			}
+			
+		} else {
+			Log.i("XmlDepartureProvider", "cache hit !!!");
+			success = true;
+		}		
+		
+		return success;
+	}
+	
+	private boolean lookupDeparturesWorker(int stationID) {
+		boolean success = false;
+		departures = new ArrayList<DepartureBean>();
 		try
 		{	
-			//String url = "http://t-hoerup.dk/tog/xml_display.php?stationcode="+stationCode;
-			String url = "http://app.t-hoerup.dk/TrainInfoService/DepartureServlet?format=xml&station=" + stationID;
+
+			String url = XmlUtil.SERVICE_BASE + "/DepartureServlet?format=xml&station=" + stationID;
 			Log.i("xmlurl",url);
 			String doc =  DownloadUtil.getContentString(url, 45000, "ISO-8859-1");
 			
@@ -44,14 +77,23 @@
 			xr.setContentHandler(this);
 			xr.setErrorHandler(this);
 			xr.parse(source);
+			success = true;
+			
 		} catch (Exception e) {
 			Log.e("XmlDepartureProvider", "looupFunction", e);
 		}
+		return success;
 	}
 	
 	@Override
-	public List<DepartureBean> getDepartures() {
-		return departures;
+	public List<DepartureBean> getDepartures(int station) {
+		List<DepartureBean> list = departureCache.get(station);
+		
+		if (list == null) {			
+			list = new ArrayList<DepartureBean>();
+		} 
+		
+		return list;
 	}
 	
 	// this can be called several times fore the same text-node if there are many chardata / lines