public static final String DOC_SCORE_FIELD = "_score";

    /** Field name for site information in search results */
    public static final String SITE_FIELD = "site";

    /** Field name for URL-based search queries */
    public static final String INURL_FIELD = "inurl";

    /** Sort value for score-based sorting */
    protected static final String SCORE_SORT_VALUE = "score";

    //

    /**
     * The helper for related content.
     */
    @Resource
    protected RelatedContentHelper relatedContentHelper;

    /**
     * The helper for related queries.
     */
    @Resource
    protected RelatedQueryHelper relatedQueryHelper;

    // ===================================================================================

    /** Array of supported file protocols for URL classification. */
    protected String[] fileProtocols = { "file:", "smb:", "smb1:", "ftp:", "storage:" };

    /** Queue to track the current XML element hierarchy during parsing. */
    protected LinkedList<String> tagQueue;

    /** List to store parsed label types for access control. */
    protected List<LabelType> labelList;

     *
     * @return The number of document words.
     */
    public long getDocumentWordsNum() {
        return suggester.getDocumentWordsNum();
    }

    /**
     * Gets the number of words from queries in the suggest index.
     *
     * @return The number of query words.
     */
    public long getQueryWordsNum() {
        return suggester.getQueryWordsNum();
    }

    /**

    assertEquals("../..", simplifyPath("./../../"));
    assertEquals("../..", simplifyPath("./.././../"));
  }

  /*
   * We co-opt some URI resolution tests for our purposes.
   * Some of the tests have queries and anchors that are a little silly here.
   */

  /** http://gbiv.com/protocols/uri/rfc/rfc2396.html#rfc.section.C.1 */
  public void testRfc2396Normal() {
    assertEquals("/a/b/c/g", simplifyPath("/a/b/c/g"));

          }
        });
  }

  /**
   * An immutable snapshot of the current state of the service. This class represents a consistent
   * snapshot of the state and therefore it can be used to answer simple queries without needing to
   * grab a lock.
   */
  // @Immutable except that Throwable is mutable (initCause(), setStackTrace(), mutable subclasses).
  private static final class StateSnapshot {
    /**

    waiter1.start();
    waiter1.awaitWaiting();

    WaiterThread waiter2 = new WaiterThread(future);
    waiter2.start();
    waiter2.awaitWaiting();
    // The waiter queue should be waiter2->waiter1

    // This should wake up waiter1 and cause the waiter1 node to be removed.
    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

  //   so that it looks like we timed out even though we didn't. For comparison FutureTask respects
  //   completion preferably and AQS is non-deterministic (depends on where in the queue the waiter
  //   is). If we wanted to be strict about it, we could store the unpark() time in the Waiter node
  //   and we could use that to make a decision about whether or not we timed out prior to being
  //   unparked.

                }
                throw new UnknownHostException(addr.toString());
            }
            if (response.received && response.resultCode == 0) {

                /* For name queries resolved by different sources (e.g. WINS,
                 * BCAST, Node Status) we need to augment the hashcode generated
                 * for the addresses hostname or failed lookups for one type will

  //   so that it looks like we timed out even though we didn't. For comparison FutureTask respects
  //   completion preferably and AQS is non-deterministic (depends on where in the queue the waiter
  //   is). If we wanted to be strict about it, we could store the unpark() time in the Waiter node
  //   and we could use that to make a decision about whether or not we timed out prior to being
  //   unparked.