org.opentripplanner.apis.support.TileJson Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of otp Show documentation
The OpenTripPlanner multimodal journey planning system
The newest version!
package org.opentripplanner.apis.support;

import jakarta.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.core.UriInfo;
import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
import org.apache.commons.lang3.StringUtils;
import org.opentripplanner.framework.io.HttpUtils;
import org.opentripplanner.model.FeedInfo;
import org.opentripplanner.service.worldenvelope.model.WorldEnvelope;

/**
 * Container for TileJSON response
 */
public class TileJson implements Serializable {

  // Some fields(all @SuppressWarnings("unused")) below are required to support the TileJSON format.

  @SuppressWarnings("unused")
  public final String tilejson = "2.2.0";

  @SuppressWarnings("unused")
  public final String scheme = "xyz";

  @SuppressWarnings("unused")
  public final int minzoom = 9;

  @SuppressWarnings("unused")
  public final int maxzoom = 20;

  public final String name = "OpenTripPlanner";
  public final String attribution;
  public final String[] tiles;
  public final double[] bounds;
  public final double[] center;

  public TileJson(String tileUrl, WorldEnvelope envelope, String attribution) {
    this.attribution = attribution;
    tiles = new String[] { tileUrl };

    bounds =
      new double[] {
        envelope.lowerLeft().longitude(),
        envelope.lowerLeft().latitude(),
        envelope.upperRight().longitude(),
        envelope.upperRight().latitude(),
      };

    var c = envelope.center();
    center = new double[] { c.longitude(), c.latitude(), 9 };
  }

  public TileJson(String tileUrl, WorldEnvelope envelope, Collection feedInfos) {
    this(tileUrl, envelope, attributionFromFeedInfo(feedInfos));
  }

  /**
   * Creates a vector source layer URL from a hard-coded path plus information from the incoming
   * HTTP request.
   */
  public static String urlWithDefaultPath(
    UriInfo uri,
    HttpHeaders headers,
    List layers,
    String ignoreRouterId,
    String path
  ) {
    return "%s/otp/routers/%s/%s/%s/{z}/{x}/{y}.pbf".formatted(
        HttpUtils.getBaseAddress(uri, headers),
        ignoreRouterId,
        path,
        String.join(",", layers)
      );
  }

  /**
   * Creates a vector source layer URL from a configured base path plus information from the incoming
   * HTTP request.
   */
  public static String urlFromOverriddenBasePath(
    UriInfo uri,
    HttpHeaders headers,
    String overridePath,
    List layers
  ) {
    var strippedPath = StringUtils.stripStart(overridePath, "/");
    strippedPath = StringUtils.stripEnd(strippedPath, "/");
    return "%s/%s/%s/{z}/{x}/{y}.pbf".formatted(
        HttpUtils.getBaseAddress(uri, headers),
        strippedPath,
        String.join(",", layers)
      );
  }

  private static String attributionFromFeedInfo(Collection feedInfos) {
    return feedInfos
      .stream()
      .map(feedInfo ->
        "%s".formatted(feedInfo.getPublisherUrl(), feedInfo.getPublisherName())
      )
      .distinct()
      .collect(Collectors.joining(", "));
  }
}