*/
public class IndexingHelper {
    /** Logger for this class */
    private static final Logger logger = LogManager.getLogger(IndexingHelper.class);

    /** Maximum number of retry attempts for failed operations */
    protected int maxRetryCount = 5;

    /** Default number of rows to process in a single batch */
    protected int defaultRowSize = 100;

    /**
     * Default constructor for indexing helper.

    protected Logger statsLogger = null;

    /** Name of the logger used for statistics output. */
    protected String loggerName = "fess.log.crawler.stats";

    /** Maximum number of statistics objects to cache. */
    protected long maxCacheSize = 1000;

    /** Time in milliseconds after which cache entries expire after write. */
    protected long cacheExpireAfterWrite = 10 * 60 * 1000L;

        receiveCredits.incrementAndGet();
    }

    /**
     * Get number of available send credits
     *
     * @return available send credits
     */
    public int getAvailableSendCredits() {
        return sendCredits.get();
    }

    /**
     * Get number of available receive credits
     *
     * @return available receive credits
     */

   */
  @CanIgnoreReturnValue
  public GraphBuilder<N> allowsSelfLoops(boolean allowsSelfLoops) {
    this.allowsSelfLoops = allowsSelfLoops;
    return this;
  }

  /**
   * Specifies the expected number of nodes in the graph.
   *
   * @throws IllegalArgumentException if {@code expectedNodeCount} is negative
   */
  @CanIgnoreReturnValue
  public GraphBuilder<N> expectedNodeCount(int expectedNodeCount) {

regatable\":true,\"readFromDocValues\":true},{\"name\":\"order\",\"type\":\"number\",\"esTypes\":[\"integer\"],\"count\":0,\"scripted\":false,\"searchable\":true,\"aggregatable\":true,\"readFromDocValues\":true},{\"name\":\"queryId\",\"type\":\"string\",\"esTypes\":[\"keyword\"],\"count\":0,\"scripted\":false,\"searchable\":true,\"aggregatable\":true,\"readFromDocValues\":true},{\"name\":\"queryOffset\",\"type\":\"number\",\"esTypes\":[\"integer\"],\"count\":0,\"scripted\":false,\"searchable\":t...

   * value in the manner of {@link Number#floatValue}.
   *
   * <p>Elements are copied from the argument collection as if by {@code collection.toArray()}.
   * Calling this method is as thread-safe as calling that method.
   *
   * @param collection a collection of {@code Number} instances

   */
  public static Collector<Number, StatsAccumulator, Stats> toStats() {
    return Collector.of(
        StatsAccumulator::new,
        (a, x) -> a.add(x.doubleValue()),
        (l, r) -> {
          l.addAll(r);
          return l;
        },
        StatsAccumulator::snapshot,
        Collector.Characteristics.UNORDERED);
  }

  /** Returns the number of values. */
  public long count() {

     *
     * @return the transaction buffer size
     */
    int getTransactionBufferSize();

    /**
     * Gets the number of initial credits granted by the server for SMB2.
     *
     * @return number of initial credits the server grants
     */
    int getInitialCredits();

    /**
     * Checks whether a connection can be reused for the given configuration.
     *

   * in the manner of {@link Number#intValue}.
   *
   * <p>Elements are copied from the argument collection as if by {@code collection.toArray()}.
   * Calling this method is as thread-safe as calling that method.
   *
   * @param collection a collection of {@code Number} instances

  TreeMultiset(Reference<AvlNode<E>> rootReference, GeneralRange<E> range, AvlNode<E> endLink) {
    super(range.comparator());
    this.rootReference = rootReference;
    this.range = range;
    this.header = endLink;
  }

  TreeMultiset(Comparator<? super E> comparator) {
    super(comparator);
    this.range = GeneralRange.all(comparator);
    this.header = new AvlNode<>();