Merge branch 'fix-realtime-headsign' into dev-2.x

src/main/java/org/opentripplanner/transit/model/network/TripPattern.java

@@ -401,12 +401,18 @@ public TripPattern getOriginalTripPattern() {
     return originalTripPattern;
   }
 
+  /**
+   * Returns trip headsign from the scheduled timetables or from the original pattern's scheduled
+   * timetables if this pattern is added by realtime and the stop sequence has not changed apart
+   * from pickup/dropoff values.
+   *
+   * @return trip headsign
+   */
   public I18NString getTripHeadsign() {
     var tripTimes = scheduledTimetable.getRepresentativeTripTimes();
-    if (tripTimes == null) {
-      return null;
-    }
-    return tripTimes.getTrip().getHeadsign();
+    return tripTimes == null
+      ? getTripHeadsignFromOriginalPattern()
+      : getTripHeadSignFromTripTimes(tripTimes);
   }
 
   public I18NString getStopHeadsign(int stopIndex) {
@@ -467,4 +473,30 @@ public boolean sameAs(@Nonnull TripPattern other) {
   public TripPatternBuilder copy() {
     return new TripPatternBuilder(this);
   }
+
+  /**
+   * Checks if the stops in this trip pattern are the same as in the original pattern (if this trip
+   * is added through a realtime update. The pickup and dropoff values don't have to be the same.
+   */
+  private boolean containsSameStopsAsOriginalPattern() {
+    return originalTripPattern != null && getStops().equals(originalTripPattern.getStops());
+  }
+
+  /**
+   * Helper method for getting the trip headsign from the {@link TripTimes}.
+   */
+  private I18NString getTripHeadSignFromTripTimes(TripTimes tripTimes) {
+    return tripTimes != null ? tripTimes.getTripHeadsign() : null;
+  }
+
+  /**
+   * Returns trip headsign from the original pattern if one exists.
+   */
+  private I18NString getTripHeadsignFromOriginalPattern() {
+    if (containsSameStopsAsOriginalPattern()) {
+      var tripTimes = originalTripPattern.getScheduledTimetable().getRepresentativeTripTimes();
+      return getTripHeadSignFromTripTimes(tripTimes);
+    }
+    return null;
+  }
 }

src/main/java/org/opentripplanner/transit/model/timetable/TripTimes.java

@@ -212,6 +212,13 @@ public List<String> getHeadsignVias(final int stop) {
     return List.of(headsignVias[stop]);
   }
 
+  /**
+   * @return the whole trip's headsign. Individual stops can have different headsigns.
+   */
+  public I18NString getTripHeadsign() {
+    return trip.getHeadsign();
+  }
+
   /** @return the time in seconds after midnight that the vehicle arrives at the stop. */
   public int getScheduledArrivalTime(final int stop) {
     return scheduledArrivalTimes[stop] + timeShift;

src/test/java/org/opentripplanner/updater/trip/TimetableSnapshotSourceTest.java

@@ -34,6 +34,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.opentripplanner.ConstantsForTests;
 import org.opentripplanner.TestOtpModel;
+import org.opentripplanner.framework.i18n.NonLocalizedString;
 import org.opentripplanner.framework.time.ServiceDateUtils;
 import org.opentripplanner.model.PickDrop;
 import org.opentripplanner.model.Timetable;
@@ -669,6 +670,12 @@ public void scheduledTripWithSkippedAndNoData() {
         assertFalse(newTripPattern.canBoard(1));
         assertTrue(newTripPattern.canBoard(2));
 
+        assertEquals(new NonLocalizedString("foo"), newTripPattern.getTripHeadsign());
+        assertEquals(
+          newTripPattern.getOriginalTripPattern().getTripHeadsign(),
+          newTripPattern.getTripHeadsign()
+        );
+
         final int newTimetableForTodayModifiedTripIndex = newTimetableForToday.getTripIndex(
           scheduledTripId
         );

src/test/resources/testagency/trips.txt

@@ -1,34 +1,34 @@
-route_id,service_id,trip_id,shape_id,block_id,wheelchair_accessible,trip_bikes_allowed,direction_id
-1,alldays,1.1,,,1,,
-1,alldays,1.2,,,1,,
-1,alldays,1.3,,,1,,
-2,alldays,2.1,,,0,2,
-2,alldays,2.2,,,0,2,
-3,alldays,3.1,,,1,,
-3,alldays,3.2,,,1,,
-4,weekdays,4.1,4,,,,
-4,weekdays,4.2,4,,,,
-4,weekdays,4.3,4,,,,
-5,alldays,5.1,5,,,,
-6,alldays,6.1,,block.1,,,
-7,alldays,7.1,,block.1,,,
-6,alldays,6.2,,block.2,,,
-7,alldays,7.2,,block.2,,,
-8,alldays,8.1,,block.2,,,
-9,alldays,9.1,,,,1,
-10,alldays,10.1,,,,,
-10,alldays,10.2,,,,,
-10,alldays,10.3,,,,,
-10,alldays,10.4,,,,,
-10,alldays,10.5,,,,,
-11,alldays,11.1,,,,,
-12,alldays,12.1,,,,,
-13,alldays,13.1,,,,,
-14,alldays,14.1,,,,,
-14,alldays,14.2,,,,,
-15,alldays,15.1,5,,,,
-16,alldays,16.1,,,,,
-17,alldays,17.1,,,,,
-18,alldays,18.1,,,,,N
-18,alldays,18.1back,,,1,,S
-18,alldays,18.bogus,,,,,
+route_id,service_id,trip_id,shape_id,block_id,wheelchair_accessible,trip_bikes_allowed,direction_id,trip_headsign
+1,alldays,1.1,,,1,,,foo
+1,alldays,1.2,,,1,,,foo
+1,alldays,1.3,,,1,,,foo
+2,alldays,2.1,,,0,2,,foo
+2,alldays,2.2,,,0,2,,foo
+3,alldays,3.1,,,1,,,foo
+3,alldays,3.2,,,1,,,foo
+4,weekdays,4.1,4,,,,,foo
+4,weekdays,4.2,4,,,,,foo
+4,weekdays,4.3,4,,,,,foo
+5,alldays,5.1,5,,,,,foo
+6,alldays,6.1,,block.1,,,,foo
+7,alldays,7.1,,block.1,,,,foo
+6,alldays,6.2,,block.2,,,,foo
+7,alldays,7.2,,block.2,,,,foo
+8,alldays,8.1,,block.2,,,,foo
+9,alldays,9.1,,,,1,,foo
+10,alldays,10.1,,,,,,foo
+10,alldays,10.2,,,,,,foo
+10,alldays,10.3,,,,,,foo
+10,alldays,10.4,,,,,,foo
+10,alldays,10.5,,,,,,foo
+11,alldays,11.1,,,,,,foo
+12,alldays,12.1,,,,,,foo
+13,alldays,13.1,,,,,,foo
+14,alldays,14.1,,,,,,foo
+14,alldays,14.2,,,,,,foo
+15,alldays,15.1,5,,,,,foo
+16,alldays,16.1,,,,,,foo
+17,alldays,17.1,,,,,,foo
+18,alldays,18.1,,,,,N,foo
+18,alldays,18.1back,,,1,,S,foo
+18,alldays,18.bogus,,,,,,foo