* Used for hreflang annotation.
     */
    private List<SitemapAlternateLink> alternateLinks;

    /**
     * Returns the location URL of this sitemap entry.
     * @return the location URL
     */
    @Override
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location URL of this sitemap entry.

            file.deleteOnExit();
            fileTransformer.setPath(file.getAbsolutePath());
            crawler.addUrl(url);
            crawler.crawlerContext.setMaxAccessCount(maxCount);
            crawler.crawlerContext.setNumOfThread(numOfThread);
            crawler.urlFilter.addInclude(url + ".*");
            final String sessionId = crawler.execute();
            assertEquals(maxCount, dataService.getCount(sessionId));

     */
    protected IndexResponse insert(final Object target, final OpType opType) {
        final String url = getUrl(target);
        if (url == null) {
            throw new OpenSearchAccessException("url is null.");
        }
        final String id = getId(getSessionId(target), url);
        try (final XContentBuilder source = getXContentBuilder(target)) {

    /**
     * Gets an access result for the specified session and URL.
     *
     * @param sessionId the session ID
     * @param url the URL
     * @return the access result or null if not found
     */
    @Override
    public AccessResultImpl<Long> getAccessResult(final String sessionId, final String url) {
        return dataHelper.getAccessResultMap(sessionId).get(url);
    }

    /**

    }

    private String canonicalFileUrl(String url) throws IOException {
        if (!url.startsWith("file:")) {
            url = "file://" + url;
        } else if (url.startsWith("file:") && !url.startsWith("file://")) {
            url = "file://" + url.substring("file:".length());
        }

        // So now we have an url of the form file://<path>

    }

    /**
     * Gets the URL of the crawled resource.
     *
     * @return the URL
     */
    public String getUrl() {
        return url;
    }

    /**
     * Sets the URL of the crawled resource.
     *
     * @param url the URL to set
     */
    public void setUrl(final String url) {
        this.url = url;
    }

    /**

    )

    val call1 = client.newCall(Request(server.url("/")))
    call1.execute().use { response ->
      val source = response.body.source()
      assertThat(response.header("h1")).isEqualTo("v1")
      assertThat(source.readUtf8()).isEqualTo("Hello")
      assertThat(response.trailers()).isEqualTo(headersOf("t1", "v2"))
    }

    val call2 = client.newCall(Request(server.url("/")))
    call2.execute().use { response ->

     * an SMB server addressed by the <code>url</code> parameter. See {@link
     * jcifs.smb1.smb1.SmbFile} for a detailed description and examples of the smb
     * URL syntax.
     *
     * @param url An smb URL string representing the file to read from
     */

    /**
     * Creates an input stream for reading from the specified SMB URL
     *
     * @param url the SMB URL to read from

            }
        }
    }

    /**
     * Gets the appropriate crawler client for the given URL.
     * @param url The URL to get a client for.
     * @return The crawler client.
     */
    protected CrawlerClient getClient(final String url) {
        return clientFactory.getClient(url);
    }

    /**
     * Checks if the content has been updated since the last crawl.

    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .build()
    val call = client.newCall(request)
    assertThat(call.timeout().timeoutNanos()).isEqualTo(0)
  }

  @Test
  fun configureClientDefault() {
    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .build()
    val timeoutClient =
      client
        .newBuilder()