}
            return id;
        }
    }

    /**
     * Statistics data object that stores timestamped events and maintains reference counting.
     * Extends LinkedHashMap to store event names mapped to their timestamps.
     * Includes reference counting for multi-threaded access tracking.
     */
    public static class StatsObject extends LinkedHashMap<String, Long> {

  //
  // WARNING: The destructor of this class is marked as protected to disallow
  // clients from directly destroying this object since it may manage it's own
  // lifetime through ref counting. Thus this must be allocated on the heap and
  // clients MUST call Release() in order to destroy an instance of this class.
  virtual void Release() = 0;

# サブアプリケーション - マウント { #sub-applications-mounts }

それぞれ独立した OpenAPI とドキュメント UI を持つ2つの独立した FastAPI アプリケーションが必要な場合、メインアプリに1つ（以上）のサブアプリケーションを「マウント」できます。

## FastAPI アプリケーションのマウント { #mounting-a-fastapi-application }

「マウント」とは、特定のパスに完全に「独立した」アプリケーションを追加し、そのサブアプリケーションで宣言された path operation によって、そのパス以下のすべてを処理させることを意味します。

### トップレベルアプリケーション { #top-level-application }

まず、メインのトップレベル **FastAPI** アプリケーションと、その path operation を作成します:

import jakarta.annotation.PostConstruct;
import jakarta.servlet.http.HttpServletRequest;

/**
 * Helper class for rate limiting functionality.
 * Implements a sliding window algorithm for request counting
 * and manages IP-based blocking using Guava Cache for automatic expiration.
 */
public class RateLimitHelper {

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

    /**

    abstract void apply(T collection, Object query);

    abstract double expectedAsymptotic(int n);
  }

  /**
   * Returns a list of objects with the same hash code, of size 2^power, counting calls to equals,
   * hashCode, and compareTo in counter.
   */
  private static List<CountsHashCodeAndEquals> createAdversarialInput(
      int power, CallsCounter counter) {
    String str1 = "Aa";

   *
   * @throws IllegalArgumentException if {@code node} is not an element of this graph
   */
  @Override
  Set<N> successors(N node);

  /**
   * Returns the count of {@code node}'s incident edges, counting self-loops twice (equivalently,
   * the number of times an edge touches {@code node}).
   *
   * <p>For directed graphs, this is equal to {@code inDegree(node) + outDegree(node)}.
   *

    @Override
    int writeParameterWordsWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x00;
        dstIndex++;
        // name length without counting null termination
        namelen_index = dstIndex;
        dstIndex += 2;
        writeInt4(flags0, dst, dstIndex);
        dstIndex += 4;
        writeInt4(rootDirectoryFid, dst, dstIndex);
        dstIndex += 4;

    ArrayList<ListenableFuture<Integer>> lengthChecks = new ArrayList<>();
    List<Integer> completeLengthChecks;
    int baseStackDepth;
    ExecutorService service = newFixedThreadPool(5);
    try {
      // Avoid counting frames from the executor itself, or the ExecutionSequencer
      baseStackDepth =
          serializer.submit(() -> Thread.currentThread().getStackTrace().length, service).get();

        public boolean reportProblem(P problem) {
            requireNonNull(problem, "problem");
            // first apply filter
            if (!filter.test(problem)) {
                // drop without counting towards preserved problems
                return false;
            }
            int currentCount = totalCount.incrementAndGet();
            getCounter(problem.getSeverity()).increment();

  * Support for ELBs with complex configurations: better subnet selection with
multiple subnets, and internal ELBs
  * Support for VPCs with private dns names
  * Multiple fixes to EBS volume mounting code for robustness, and to support
mounting the full number of AWS recommended volumes.
  * Multiple fixes to avoid hitting AWS rate limits, and to throttle if we do
  * Support for the EC2 Container Registry (currently in us-east-1 only)