--- android/TrainInfo/src/dk/thoerup/traininfo/provider/XmlDepartureProvider.java	2009/09/12 12:33:24	320
+++ android/TrainInfo/src/dk/thoerup/traininfo/provider/XmlDepartureProvider.java	2010/09/20 06:41:59	1079
@@ -1,142 +1,68 @@
 package dk.thoerup.traininfo.provider;
 
-import java.io.StringReader;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-
-import javax.xml.parsers.SAXParser;
-import javax.xml.parsers.SAXParserFactory;
-
-import org.xml.sax.Attributes;
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
-import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.DefaultHandler;
+
+
+import org.simpleframework.xml.Serializer;
+import org.simpleframework.xml.core.Persister;
+
 
 import android.util.Log;
-import dk.thoerup.traininfo.DepartureBean;
+import dk.thoerup.android.traininfo.common.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 {
+public class XmlDepartureProvider implements DepartureProvider {
 
-	final static long CACHE_TIMEOUT = 60*1000;
+	final static int CACHE_TIMEOUT = 60*1000;
+		
 	
-	class CacheEntry {
-		public long timestamp;
-		public List<DepartureBean> departures;
-	}
+	AndroidTimeoutCache<String,DepartureBean> departureCache = new AndroidTimeoutCache<String,DepartureBean>(CACHE_TIMEOUT); 
 	
-	HashMap<Integer, CacheEntry> departureCache = new HashMap<Integer,CacheEntry>();	
-	ArrayList<DepartureBean> departures;
 		
 	
-	DepartureBean tempDeparture;
-	StringBuilder builder = new StringBuilder(512);
-	
 	@Override
-	public boolean lookupDepartures(int stationID) {
-		CacheEntry entry = departureCache.get(stationID);
-		boolean success;
+	public DepartureBean lookupDepartures(int stationID, boolean arrival) {		
+		
+		String key = "" + stationID + ":" + arrival;
+		
+		DepartureBean departures = departureCache.get(key);
 	
-		long now = android.os.SystemClock.elapsedRealtime();
-		if (entry == null || (entry.timestamp+CACHE_TIMEOUT) < now) {
+		if (departures == null) {			
+			departures = lookupDeparturesWorker(stationID, arrival);
 			
-			success = lookupDeparturesWorker(stationID);
-			
-			if (success) {
-				entry = new CacheEntry();
-				entry.timestamp = android.os.SystemClock.elapsedRealtime();
-				entry.departures = departures;
-			
-				departureCache.put(stationID, entry);
+			if (departures != null) {			
+				departureCache.put(key, departures);
 			}
+			
 		} else {
 			Log.i("XmlDepartureProvider", "cache hit !!!");
-			success = true;
 		}		
 		
-		return success;
+		return departures;
 	}
 	
-	private boolean lookupDeparturesWorker(int stationID) {
-		boolean success = false;
-		departures = new ArrayList<DepartureBean>();
+	private DepartureBean lookupDeparturesWorker(int stationID, boolean arrival) {
+
 		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;
+			int iArrival = arrival ? 1 : 0;
+			String url = XmlUtil.SERVICE_BASE + "/DepartureServlet?format=xml&station=" + stationID + "&arrival=" + iArrival;
 			Log.i("xmlurl",url);
-			String doc =  DownloadUtil.getContentString(url, 45000, "ISO-8859-1");
+			String doc =  DownloadUtil.getContentString(url, 30000, "ISO-8859-1");
+
+			Serializer serializer = new Persister();
+
+			DepartureBean departures = serializer.read(DepartureBean.class, doc);
 			
-			InputSource source = new InputSource( new StringReader(doc));
 			
-			SAXParserFactory spf = SAXParserFactory.newInstance();
-            SAXParser sp = spf.newSAXParser();
-            XMLReader xr = sp.getXMLReader();
-
-			xr.setContentHandler(this);
-			xr.setErrorHandler(this);
-			xr.parse(source);
-			success = true;
+			return departures;
+			
 			
 		} catch (Exception e) {
 			Log.e("XmlDepartureProvider", "looupFunction", e);
-		}
-		return success;
-	}
-	
-	@Override
-	public List<DepartureBean> getDepartures(int station) {
-		CacheEntry entry = departureCache.get(station);
-		
-		if (entry != null) {			
-			return entry.departures;
-		} else {
-			return new ArrayList<DepartureBean>();
-		}
-		
-	}
-	
-	// this can be called several times fore the same text-node if there are many chardata / lines
-	@Override
-	public void characters (char ch[], int start, int length) 
-	{		
-		for (int i= start; i<start+length; i++)
-			builder.append(ch[i]);	
-	}
-	
-	@Override
-	public void startElement (String uri, String name, String qName, Attributes atts)throws SAXException
-	{
-		if (name.equalsIgnoreCase("train"))
-			tempDeparture = new DepartureBean();
-		
-		builder.setLength(0); //reset StringBuilder
+			return null;
+		}		
 	}
 	
-	@Override
-	public void endElement (String uri, String name, String qName) throws SAXException
-	{
-		if (name.equals("train")) {
-			departures.add( tempDeparture );
-		} else if (name.equals("time")) {
-			tempDeparture.setTime(builder.toString().trim());
-		} else if (name.equals("updated")) {
-			tempDeparture.setLastUpdate(builder.toString().trim());
-		} else if (name.equals("trainnumber")) {
-			tempDeparture.setTrainNumber(builder.toString().trim());
-		} else if (name.equals("destination")) {
-			tempDeparture.setDestination(builder.toString().trim());
-		} else if (name.equals("origin")) {
-			tempDeparture.setOrigin(builder.toString().trim());
-		} else if (name.equals("location")) {
-			tempDeparture.setLocation(builder.toString().trim());
-		} else if (name.equals("status")) {
-			tempDeparture.setStatus(builder.toString().trim());
-		} else if (name.equals("note")) {
-			tempDeparture.setNote(builder.toString().trim());
-		} 
-	}
 }