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The OpenTripPlanner multimodal journey planning system

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package org.opentripplanner.gtfs.mapping;

import org.onebusaway.gtfs.model.AgencyAndId;
import org.opentripplanner.transit.model.framework.FeedScopedId;

/** Responsible for mapping GTFS AgencyAndId into the OTP model. */
public class AgencyAndIdMapper {

  /** Map from GTFS to OTP model, {@code null} safe. */
  public static FeedScopedId mapAgencyAndId(AgencyAndId id) {
    return id == null ? null : new FeedScopedId(id.getAgencyId(), id.getId());
  }

  /**
   * Returns the id part of the {@link AgencyAndId} if its non-null. Otherwise, returns null.
   */
  public static String mapNullableId(AgencyAndId id) {
    if (id != null) {
      return id.getId();
    } else return null;
  }
}