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The OpenTripPlanner multimodal journey planning system

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package org.opentripplanner.apis.gtfs.datafetchers;

import graphql.schema.DataFetcher;
import graphql.schema.DataFetchingEnvironment;
import org.opentripplanner.apis.gtfs.generated.GraphQLDataFetchers;
import org.opentripplanner.model.plan.ElevationProfile;

public class elevationProfileComponentImpl
  implements GraphQLDataFetchers.GraphQLElevationProfileComponent {

  @Override
  public DataFetcher distance() {
    return environment -> getSource(environment).x();
  }

  @Override
  public DataFetcher elevation() {
    return environment -> getSource(environment).y();
  }

  private ElevationProfile.Step getSource(DataFetchingEnvironment environment) {
    return environment.getSource();
  }
}