/** Prefix used to identify role-based permissions */
    protected String rolePrefix = "{role}";

    /** Prefix used to identify group-based permissions */
    protected String groupPrefix = "{group}";

    /** Prefix used to identify user-based permissions */
    protected String userPrefix = "{user}";

    /** Prefix used to identify allow permissions */
    protected String allowPrefix = "(allow)";

public class CrawlJob extends ExecJob {

    private static final Logger logger = LogManager.getLogger(CrawlJob.class);

    /**
     * The namespace identifier for the crawling session.
     * Used to organize and identify crawling activities in the system.
     * Defaults to the system crawling info name.
     */
    protected String namespace = Constants.CRAWLING_INFO_SYSTEM_NAME;

    /**

    }
  }

  /**
   * Using this as the blocker object allows introspection and debugging tools to see that the
   * currentRunner thread is blocked on the progress of the interruptor thread, which can help
   * identify deadlocks.
   */
  @VisibleForTesting
  static final class Blocker extends AbstractOwnableSynchronizer implements Runnable {
    private final InterruptibleTask<?> task;

 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingObject implements Map<K, V> {
  // TODO(lowasser): identify places where thread safety is actually lost

  /** Constructor for use by subclasses. */
  protected ForwardingMap() {}

  @Override
  protected abstract Map<K, V> delegate();

  @Override

    /** Whether the user identification cookie should be HTTP-only */
    protected boolean httpOnly = true;

    /**
     * Retrieves the user code for the current request.
     * The user code is used to uniquely identify users across sessions and requests.
     * It checks multiple sources in order: request attribute, request parameter, cookie, user bean, or generates a new one.
     *

   * is to be disregarded.
   *
   * @since 8.0
   */
  public static final byte CAN = 24;

  /**
   * End of Medium: A control character associated with the sent data which may be used to identify
   * the physical end of the medium, or the end of the used, or wanted, portion of information
   * recorded on a medium. (The position of this character does not necessarily correspond to the
   * physical end of the medium.)

    /** Constant used to indicate that query-based preference should be used for search routing */
    protected static final String PREFERENCE_QUERY = "_query";

    /** Prefix used to identify sort parameters in search queries */
    protected String sortPrefix = "sort:";

    /** Additional query string to be appended to all search queries */
    protected String additionalQuery;

    return newReentrantLock(lockName, false);
  }

  /**
   * Creates a {@link ReentrantLock} with the given fairness policy. The {@code lockName} is used in
   * the warning or exception output to help identify the locks involved in the detected deadlock.
   */
  public ReentrantLock newReentrantLock(String lockName, boolean fair) {
    return policy == Policies.DISABLED
        ? new ReentrantLock(fair)

        public V setValue(V value) {
          return super.setValue(checkNotNull(value));
        }

        @Override
        public boolean equals(@Nullable Object object) {
          // TODO(lowasser): identify why this affects GWT tests
          return standardEquals(object);
        }
      };
    }
  }

  /**
   * {@inheritDoc}
   *

            return name + ":" + version;
        }
    }

    /**
     * Enumeration of different artifact types supported by Fess.
     * Each type has a specific ID prefix used to identify artifacts of that type.
     */
    public enum ArtifactType {
        /** Data store plugins */
        DATA_STORE("fess-ds"), //
        /** Theme plugins */
        THEME("fess-theme"), //