ISO-8601 date time for GTFS API itinerary responses

docs/apis/GraphQL-Tutorial.md

@@ -88,25 +88,33 @@ Most people want to get routing results out of OTP, so lets see the query for th
             },
         ]) {
         itineraries {
-            startTime
-            endTime
+            start
+            end
             legs {
                 mode
-                startTime
-                endTime
                 from {
                     name
                     lat
                     lon
-                    departureTime
-                    arrivalTime
+                    departure {
+                        scheduledTime
+                        estimated {
+                            time
+                            delay
+                        }
+                    }
                 }
                 to {
                     name
                     lat
                     lon
-                    departureTime
-                    arrivalTime
+                    arrival {
+                        scheduledTime
+                        estimated {
+                            time
+                            delay
+                        }
+                    }
                 }
                 route {
                     gtfsId

magidoc.mjs

@@ -35,7 +35,8 @@ To learn how to deactivate it, read the
       appTitle: 'OTP GTFS GraphQL API',
       queryGenerationFactories: {
         'Polyline': '<>',
-        'GeoJson': '<>'
+        'GeoJson': '<>',
+        'OffsetDateTime': '2024-02-05T18:04:23+01:00'
       },
     }
   },

src/ext/java/org/opentripplanner/ext/fares/impl/CombinedInterlinedTransitLeg.java

@@ -10,6 +10,7 @@
 import org.opentripplanner.framework.collection.ListUtils;
 import org.opentripplanner.model.fare.FareProductUse;
 import org.opentripplanner.model.plan.Leg;
+import org.opentripplanner.model.plan.LegTime;
 import org.opentripplanner.model.plan.Place;
 import org.opentripplanner.model.plan.StopArrival;
 import org.opentripplanner.model.plan.TransitLeg;
@@ -56,6 +57,16 @@ public Trip getTrip() {
     return first.getTrip();
   }
 
+  @Override
+  public LegTime start() {
+    return first.start();
+  }
+
+  @Override
+  public LegTime end() {
+    return second.end();
+  }
+
   @Override
   public ZonedDateTime getStartTime() {
     return first.getStartTime();

src/ext/java/org/opentripplanner/ext/flex/FlexibleTransitLeg.java

@@ -16,6 +16,7 @@
 import org.opentripplanner.model.PickDrop;
 import org.opentripplanner.model.fare.FareProductUse;
 import org.opentripplanner.model.plan.Leg;
+import org.opentripplanner.model.plan.LegTime;
 import org.opentripplanner.model.plan.Place;
 import org.opentripplanner.model.plan.StopArrival;
 import org.opentripplanner.model.plan.TransitLeg;
@@ -84,6 +85,16 @@ public Accessibility getTripWheelchairAccessibility() {
     return edge.getFlexTrip().getTrip().getWheelchairBoarding();
   }
 
+  @Override
+  public LegTime start() {
+    return LegTime.ofStatic(startTime);
+  }
+
+  @Override
+  public LegTime end() {
+    return LegTime.ofStatic(endTime);
+  }
+
   @Override
   @Nonnull
   public TransitMode getMode() {

src/ext/java/org/opentripplanner/ext/restapi/mapping/PlaceMapper.java

@@ -39,8 +39,8 @@ public List<ApiPlace> mapStopArrivals(Collection<StopArrival> domain) {
   public ApiPlace mapStopArrival(StopArrival domain) {
     return mapPlace(
       domain.place,
-      domain.arrival,
-      domain.departure,
+      domain.arrival.time(),
+      domain.departure.time(),
       domain.stopPosInPattern,
       domain.gtfsStopSequence
     );

src/main/java/org/opentripplanner/apis/gtfs/GraphQLScalars.java

@@ -10,18 +10,24 @@
 import graphql.schema.CoercingParseValueException;
 import graphql.schema.CoercingSerializeException;
 import graphql.schema.GraphQLScalarType;
+import java.text.ParseException;
+import java.time.OffsetDateTime;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import javax.annotation.Nonnull;
 import org.locationtech.jts.geom.Geometry;
 import org.opentripplanner.framework.geometry.GeometryUtils;
 import org.opentripplanner.framework.graphql.scalar.DurationScalarFactory;
 import org.opentripplanner.framework.model.Grams;
+import org.opentripplanner.framework.time.OffsetDateTimeParser;
 
 public class GraphQLScalars {
 
   private static final ObjectMapper geoJsonMapper = new ObjectMapper()
     .registerModule(new JtsModule(GeometryUtils.getGeometryFactory()));
   public static GraphQLScalarType durationScalar = DurationScalarFactory.createDurationScalar();
 
-  public static GraphQLScalarType polylineScalar = GraphQLScalarType
+  public static final GraphQLScalarType polylineScalar = GraphQLScalarType
     .newScalar()
     .name("Polyline")
     .description(
@@ -50,7 +56,63 @@ public String parseLiteral(Object input) {
     )
     .build();
 
-  public static GraphQLScalarType geoJsonScalar = GraphQLScalarType
+  public static final GraphQLScalarType offsetDateTimeScalar = GraphQLScalarType
+    .newScalar()
+    .name("OffsetDateTime")
+    .coercing(
+      new Coercing<OffsetDateTime, String>() {
+        @Override
+        public String serialize(@Nonnull Object dataFetcherResult)
+          throws CoercingSerializeException {
+          if (dataFetcherResult instanceof ZonedDateTime zdt) {
+            return zdt.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);
+          } else if (dataFetcherResult instanceof OffsetDateTime odt) {
+            return odt.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);
+          } else {
+            throw new CoercingSerializeException(
+              "Cannot serialize object of class %s".formatted(
+                  dataFetcherResult.getClass().getSimpleName()
+                )
+            );
+          }
+        }
+
+        @Override
+        public OffsetDateTime parseValue(Object input) throws CoercingParseValueException {
+          if (input instanceof CharSequence cs) {
+            try {
+              return OffsetDateTimeParser.parseLeniently(cs);
+            } catch (ParseException e) {
+              int errorOffset = e.getErrorOffset();
+              throw new CoercingParseValueException(
+                "Cannot parse %s into an OffsetDateTime. Error at character index %s".formatted(
+                    input,
+                    errorOffset
+                  )
+              );
+            }
+          }
+          throw new CoercingParseValueException(
+            "Cannot parse %s into an OffsetDateTime. Must be a string."
+          );
+        }
+
+        @Override
+        public OffsetDateTime parseLiteral(Object input) throws CoercingParseLiteralException {
+          if (input instanceof StringValue sv) {
+            try {
+              return OffsetDateTimeParser.parseLeniently(sv.getValue());
+            } catch (ParseException e) {
+              throw new CoercingSerializeException();
+            }
+          }
+          throw new CoercingParseLiteralException();
+        }
+      }
+    )
+    .build();
+
+  public static final GraphQLScalarType geoJsonScalar = GraphQLScalarType
     .newScalar()
     .name("GeoJson")
     .description("Geographic data structures in JSON format. See: https://geojson.org/")
@@ -78,7 +140,7 @@ public Geometry parseLiteral(Object input) throws CoercingParseLiteralException
     )
     .build();
 
-  public static GraphQLScalarType graphQLIDScalar = GraphQLScalarType
+  public static final GraphQLScalarType graphQLIDScalar = GraphQLScalarType
     .newScalar()
     .name("ID")
     .coercing(
@@ -118,7 +180,7 @@ public Relay.ResolvedGlobalId parseLiteral(Object input)
     )
     .build();
 
-  public static GraphQLScalarType gramsScalar = GraphQLScalarType
+  public static final GraphQLScalarType gramsScalar = GraphQLScalarType
     .newScalar()
     .name("Grams")
     .coercing(

src/main/java/org/opentripplanner/apis/gtfs/GtfsGraphQLIndex.java

@@ -111,6 +111,7 @@ protected static GraphQLSchema buildSchema() {
         .scalar(GraphQLScalars.geoJsonScalar)
         .scalar(GraphQLScalars.graphQLIDScalar)
         .scalar(GraphQLScalars.gramsScalar)
+        .scalar(GraphQLScalars.offsetDateTimeScalar)
         .scalar(ExtendedScalars.GraphQLLong)
         .type("Node", type -> type.typeResolver(new NodeTypeResolver()))
         .type("PlaceInterface", type -> type.typeResolver(new PlaceInterfaceTypeResolver()))

src/main/java/org/opentripplanner/apis/gtfs/datafetchers/ItineraryImpl.java

@@ -2,6 +2,7 @@
 
 import graphql.schema.DataFetcher;
 import graphql.schema.DataFetchingEnvironment;
+import java.time.OffsetDateTime;
 import java.util.List;
 import org.opentripplanner.apis.gtfs.generated.GraphQLDataFetchers;
 import org.opentripplanner.apis.gtfs.mapping.NumberMapper;
@@ -32,6 +33,12 @@ public DataFetcher<Double> elevationLost() {
     return environment -> getSource(environment).getElevationLost();
   }
 
+  @Override
+  public DataFetcher<OffsetDateTime> end() {
+    return environment -> getSource(environment).endTime().toOffsetDateTime();
+  }
+
+  @Deprecated
   @Override
   public DataFetcher<Long> endTime() {
     return environment -> getSource(environment).endTime().toInstant().toEpochMilli();
@@ -57,6 +64,12 @@ public DataFetcher<Integer> numberOfTransfers() {
     return environment -> getSource(environment).getNumberOfTransfers();
   }
 
+  @Override
+  public DataFetcher<OffsetDateTime> start() {
+    return environment -> getSource(environment).startTime().toOffsetDateTime();
+  }
+
+  @Deprecated
   @Override
   public DataFetcher<Long> startTime() {
     return environment -> getSource(environment).startTime().toInstant().toEpochMilli();

src/main/java/org/opentripplanner/apis/gtfs/datafetchers/LegImpl.java

@@ -18,6 +18,7 @@
 import org.opentripplanner.model.PickDrop;
 import org.opentripplanner.model.fare.FareProductUse;
 import org.opentripplanner.model.plan.Leg;
+import org.opentripplanner.model.plan.LegTime;
 import org.opentripplanner.model.plan.ScheduledTransitLeg;
 import org.opentripplanner.model.plan.StopArrival;
 import org.opentripplanner.model.plan.StreetLeg;
@@ -78,6 +79,12 @@ public DataFetcher<Double> duration() {
   }
 
   @Override
+  public DataFetcher<LegTime> end() {
+    return environment -> getSource(environment).end();
+  }
+
+  @Override
+  @Deprecated
   public DataFetcher<Long> endTime() {
     return environment -> getSource(environment).getEndTime().toInstant().toEpochMilli();
   }
@@ -93,8 +100,8 @@ public DataFetcher<StopArrival> from() {
       Leg source = getSource(environment);
       return new StopArrival(
         source.getFrom(),
-        source.getStartTime(),
-        source.getStartTime(),
+        source.start(),
+        source.start(),
         source.getBoardStopPosInPattern(),
         source.getBoardingGtfsStopSequence()
       );
@@ -216,6 +223,12 @@ public DataFetcher<String> serviceDate() {
   }
 
   @Override
+  public DataFetcher<LegTime> start() {
+    return environment -> getSource(environment).start();
+  }
+
+  @Override
+  @Deprecated
   public DataFetcher<Long> startTime() {
     return environment -> getSource(environment).getStartTime().toInstant().toEpochMilli();
   }
@@ -231,8 +244,8 @@ public DataFetcher<StopArrival> to() {
       Leg source = getSource(environment);
       return new StopArrival(
         source.getTo(),
-        source.getEndTime(),
-        source.getEndTime(),
+        source.end(),
+        source.end(),
         source.getAlightStopPosInPattern(),
         source.getAlightGtfsStopSequence()
       );