org.opentripplanner.ext.legacygraphqlapi.datafetchers.LegacyGraphQLAgencyImpl Maven / Gradle / Ivy

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The OpenTripPlanner multimodal journey planning system
There is a newer version: 2.5.0
package org.opentripplanner.ext.legacygraphqlapi.datafetchers;


import graphql.relay.Relay;
import graphql.schema.DataFetcher;
import graphql.schema.DataFetchingEnvironment;
import java.util.ArrayList;
import java.util.Collection;
import org.opentripplanner.ext.legacygraphqlapi.LegacyGraphQLRequestContext;
import org.opentripplanner.ext.legacygraphqlapi.generated.LegacyGraphQLDataFetchers;
import org.opentripplanner.ext.legacygraphqlapi.generated.LegacyGraphQLTypes;
import org.opentripplanner.model.Agency;
import org.opentripplanner.model.Route;
import org.opentripplanner.routing.RoutingService;
import org.opentripplanner.routing.alertpatch.EntitySelector;
import org.opentripplanner.routing.alertpatch.TransitAlert;

import java.util.List;
import java.util.stream.Collectors;
import org.opentripplanner.routing.services.TransitAlertService;

public class LegacyGraphQLAgencyImpl implements LegacyGraphQLDataFetchers.LegacyGraphQLAgency {

  @Override
  public DataFetcher id() {
    return environment -> new Relay.ResolvedGlobalId("Agency",
        getSource(environment).getId().toString()
    );
  }

  @Override
  public DataFetcher gtfsId() {
    return environment -> getSource(environment).getId().toString();
  }

  @Override
  public DataFetcher name() {
    return environment -> getSource(environment).getName();
  }

  @Override
  public DataFetcher url() {
    return environment -> getSource(environment).getUrl();
  }

  @Override
  public DataFetcher timezone() {
    return environment -> getSource(environment).getTimezone();
  }

  @Override
  public DataFetcher lang() {
    return environment -> getSource(environment).getLang();
  }

  @Override
  public DataFetcher phone() {
    return environment -> getSource(environment).getPhone();
  }

  @Override
  public DataFetcher fareUrl() {
    return environment -> getSource(environment).getFareUrl();
  }

  @Override
  public DataFetcher> routes() {
    return environment -> getRoutes(environment);
  }

  @Override
  public DataFetcher> alerts() {
    return environment -> {
      TransitAlertService alertService = getRoutingService(environment).getTransitAlertService();
      var args = new LegacyGraphQLTypes.LegacyGraphQLAgencyAlertsArgs(
              environment.getArguments());
      Iterable types =
              args.getLegacyGraphQLTypes();
      if (types != null) {
        Collection alerts = new ArrayList<>();
        types.forEach(type -> {
          switch (type) {
            case AGENCY:
              alerts.addAll(alertService.getAgencyAlerts(getSource(environment).getId()));
              break;
            case ROUTE_TYPES:
              alertService.getAllAlerts()
                      .stream()
                      .filter(alert -> alert.getEntities()
                              .stream()
                              .filter(entitySelector -> entitySelector instanceof EntitySelector.RouteTypeAndAgency)
                              .map(EntitySelector.RouteTypeAndAgency.class::cast)
                              .anyMatch(entity -> entity.agencyId.equals(
                                      getSource(environment).getId())))
                      .forEach(alert -> alerts.add(alert));
              break;
            case ROUTES:
              getRoutes(environment).forEach(
                      route -> alerts.addAll(alertService.getRouteAlerts(route.getId())));
              break;
          }
        });
        return alerts.stream().distinct().collect(Collectors.toList());
      }
      else {
        return alertService.getAgencyAlerts(getSource(environment).getId());
      }
    };
  }

  private List getRoutes(DataFetchingEnvironment environment) {
    return getRoutingService(environment)
            .getAllRoutes()
            .stream()
            .filter(route -> route.getAgency().equals(getSource(environment)))
            .collect(Collectors.toList());
  }

  private RoutingService getRoutingService(DataFetchingEnvironment environment) {
    return environment.getContext().getRoutingService();
  }

  private Agency getSource(DataFetchingEnvironment environment) {
    return environment.getSource();
  }
}