temporary solution for NullPointerExceptions during GTFS file processing

Author: evyatark

siri/siri-client/src/main/java/il/org/hasadna/siri_client/gtfs/analysis/GtfsDataManipulations.java

@@ -9,9 +9,13 @@
 
 import il.org.hasadna.siri_client.gtfs.crud.*;
 import il.org.hasadna.siri_client.gtfs.crud.Calendar;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class GtfsDataManipulations {
 
+	private static Logger logger = LoggerFactory.getLogger(GtfsDataManipulations.class);
+
 	private GtfsCrud gtfsCrud;
 
 	private Map<ServiceId, Calendar> calendars;
@@ -123,6 +127,7 @@ public Collection<GtfsRecord> combineForSpecificRoute(LocalDate date, String rou
 	}
 
 	private GtfsRecord createGtfsRecord(Trip currTrip) {
+		try {
 		Calendar currCalendar = getCalendars().get(currTrip.getServiceId());
 
 		List<StopTime> tmpStopTimes = getStopTimes().get(currTrip.getTripId());
@@ -133,6 +138,12 @@ private GtfsRecord createGtfsRecord(Trip currTrip) {
 		StopTime currFirstStopTime = tmpStopTimes.stream().min(Comparator.comparing(StopTime::getStopSequence)).get();
 		Stop currFirstStop = getStops().get(currFirstStopTime.getStopId());
 		return new GtfsRecord(currTrip, currCalendar, currFirstStopTime, currFirstStop, currLastStopTime, currLastStop);
+		}
+		catch (Exception ex) {
+			logger.error("unexpected exception in createGtfsRecord", ex);
+			logger.error("currTrip: {}", currTrip.toString());
+			return null;
+		}
 	}
 
 }

siri/siri-client/src/main/java/il/org/hasadna/siri_client/gtfs/analysis/SchedulingDataCreator.java

@@ -31,7 +31,15 @@ public SchedulingDataCreator() {
     Function<GtfsRecord, String> f = new Function<GtfsRecord, String>() {
         @Override
         public String apply(GtfsRecord gtfsRecord) {
-            return gtfsRecord.getTrip().getRouteId();
+		if (gtfsRecord != null) {
+            		return gtfsRecord.getTrip().getRouteId();
+		}
+		else {
+			logger.warn("null gtfsRecord!");
+			// returning some dummy routeId. So grouping will work, and all failed records will be grouped to routeId "99999999"
+			// which does not exist anyway
+			return "99999999999";
+		}
         }
     };