GtfsRTInterpreter

Input type: File

Output type: Sheet

Description

Interprets an protobuf file (binary) of type File by decoding the file according to gtfs-realtime.proto. Outputs the extracted entity defined by entity as a Sheet

Example 1

block GtfsRTTripUpdateInterpreter oftype GtfsRTInterpreter{
  entity: "trip_update";
}

A file is interpretet as an GTFS-RT file, which contains TripUpdate.

Properties

entity

Type text

Description

Entity to process from GTFS-RT-feed (trip_update, alert or vehicle). We currently support following Output-Sheets, each are an equivalent to the flattened Element Index defined in https://developers.google.com/transit/gtfs-realtime/reference#element-index (just required fields are included)):

        Entity TripUpdate:
        ```
        [
          'header.gtfs_realtime_version',
          'header.timestamp',
          'header.incrementality',
          'entity.id',
          'entity.trip_update.trip.trip_id',
          'entity.trip_update.trip.route_id',
          'entity.trip_update.stop_time_update.stop_sequence',
          'entity.trip_update.stop_time_update.stop_id',
          'entity.trip_update.stop_time_update.arrival.time',
          'entity.trip_update.stop_time_update.departure.time',
        ];

        ```
        Entity VehiclePosition:
        ```
        [
          'header.gtfs_realtime_version',
          'header.timestamp',
          'header.incrementality',
          'entity.id',
          'entity.vehicle_position.vehicle_descriptor.id',
          'entity.vehicle_position.trip.trip_id',
          'entity.vehicle_position.trip.route_id',
          'entity.vehicle_position.position.latitude',
          'entity.vehicle_position.position.longitude',
          'entity.vehicle_position.timestamp',
        ];
        ```

        Entity Alert:
        ```
        [
          'header.gtfs_realtime_version',
          'header.timestamp',
          'header.incrementality',
          'entity.id',
          'entity.alert.informed_entity.route_id',
          'entity.alert.header_text',
          'entity.alert.description_text',
        ];
        ```