--- android/TrainInfoService/src/dk/thoerup/traininfoservice/db/StationDAO.java	2011/06/08 15:45:41	1505
+++ android/TrainInfoService/src/dk/thoerup/traininfoservice/db/StationDAO.java	2011/06/10 15:05:24	1516
@@ -105,7 +105,7 @@
 	 *     'select $2 ilike $1' language sql strict immutable;
 	 *     create operator ~~~ (procedure = rlike, leftarg = text, rightarg = text, commutator = ~~);
 	 */
-	public StationBean getByName(final String name) throws SQLException {
+	public StationBean getByNameNormal(final String name) throws SQLException {
 		String SQL = "SELECT id,name,latitude,longitude,stationcode_fjrn,stationcode_stog, stationcode_metro, address, 0.0 " + 
 		"FROM trainstations " + 
 		"WHERE (name ILIKE ? OR ? ~~~ ANY(aliases)) AND enabled = true " +
@@ -121,11 +121,61 @@
 		
 		return fetchStations(SQL, new NameSetter() );
 	}
+	
+	
+	public StationBean getByNameFuzzy(final String name) throws SQLException {
+		String SQL = "SELECT * FROM (" +
+					 "    SELECT id,name,latitude,longitude,stationcode_fjrn,stationcode_stog, stationcode_metro, address, 0.0, " +
+					 "    levenshtein(lower(name),lower(?) ) as leven " +
+					 "    FROM trainstations " +
+					 "    WHERE  enabled = true ) as lev2 " +
+					 "WHERE (leven <= 3) " +		
+					 "ORDER BY leven " + 
+					 "LIMIT 1";
+
+		class NameSetter implements StatementParamSetter {
+			@Override
+			public void setParams(PreparedStatement stmt) throws SQLException {
+				stmt.setString(1, name );
+			}			
+		}
+		
+		StationBean stations = fetchStations(SQL, new NameSetter() );
+		stations.fuzzystrmatch = true;
+		return stations;
+	}
+	
+	private String removeSuffix(String str, String suffix) {
+		if (str.endsWith(suffix)) {
+			return str.substring(0, str.length() - suffix.length() );
+		} else {
+			return str;
+		}
+	}
+	
+	public StationBean getByName(String name) throws SQLException {
+		name = removeSuffix(name, " st.");
+		name = removeSuffix(name, " st");
+		name = removeSuffix(name, " station");
+		
+		StationBean stations = getByNameNormal(name);
+		
+		if (stations.entries.size() == 0) {
+			stations = getByNameFuzzy(name);
+
+			logger.info("getByName failover: " + name + "(" + (stations.entries.size() >0) + ")" );
+		}
+		return stations;
+	}
+	
+	
 
 	//Latitude (horizonal), longitude(vertical) so
 	// 1 degree latitude is ~ 111320 meters, since the distance between the horizonal lines is always the same 
 	// 1 degree longitude is ~111320 meters at equator but gets shorter as we get closer to the poles.
-	// the "hack" with max 0.4 degrees latitude and 0.75 degrees longitude is only valid since we only service danish trains,
+	// so 1 degree longitude is 64.5 km at denmarks southern point (gedser=54.55,11.95)
+	// and is 59.4km at northern point (skagen = 57.75,10.65)
+	// The "hack" with max 0.4 degrees latitude and 0.75 degrees longitude is only valid since we only service danish trains,
 	// in denmark 0.4dg latitude ~ 44km, 0.75dg longitude ~ 47km
 
 	// the ultra fast method  (and only slightly inaccurate as long as we only cover a limited geographically area)