MapRetrievalCache(Map<K, V> backingMap) {
    super(backingMap);
  }

  @SuppressWarnings("unchecked") // Safe because we only cast if key is found in map.
  @Override
  @Nullable V get(Object key) {
    checkNotNull(key);
    V value = getIfCached(key);
    if (value != null) {
      return value;
    }

    value = getWithoutCaching(key);
    if (value != null) {
      addToCache((K) key, value);

/**
 * Tests for the SmbComCreateDirectory class.
 */
class SmbComCreateDirectoryTest {

    private Configuration mockConfig;

    @BeforeEach
    void setUp() {
        // Mock the Configuration object
        mockConfig = mock(Configuration.class);
        // Define behavior for the OEM encoding, which is used by writeString
        when(mockConfig.getOemEncoding()).thenReturn(StandardCharsets.UTF_8.name());
    }

     *
     * @param docMap the document data map
     * @return the formatted site path
     */
    public Object getSitePath(final Map<String, Object> docMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final Object siteValue = docMap.get(fessConfig.getIndexFieldSite());
        if (siteValue != null) {
            final String site = siteValue.toString();

// It returns true if the listing is non-versioned and the given object is expired.
func triggerExpiryAndRepl(ctx context.Context, o listPathOptions, obj metaCacheEntry) (skip bool) {
	versioned := o.Versioning != nil && o.Versioning.Versioned(obj.name)

	// skip latest object from listing only for regular
	// listObjects calls, versioned based listing cannot

import com.google.common.collect.testing.features.MapFeature;
import java.util.Map;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@link Map#replace(Object, Object)}. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.ConcurrentMapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

## 關於 `Request` 物件的細節 { #details-about-the-request-object }

由於 FastAPI 底層其實是 Starlette，再加上一層工具，因此在需要時你可以直接使用 Starlette 的 [`Request`](https://www.starlette.dev/requests/) 物件。

同時也代表，如果你直接從 `Request` 物件取得資料（例如讀取 body），FastAPI 不會替它做驗證、轉換或文件化（透過 OpenAPI 為自動化的 API 介面產生文件）。

不過，其他以一般方式宣告的參數（例如以 Pydantic 模型宣告的 body）仍然會被驗證、轉換、加上標註等。

但在某些特定情境下，直接取得 `Request` 物件會很實用。

## 直接使用 `Request` 物件 { #use-the-request-object-directly }

      maintainer="MinIO Inc <******@****.***>" \
      version="${RELEASE}" \
      release="${RELEASE}" \
      summary="MinIO is a High Performance Object Storage, API compatible with Amazon S3 cloud storage service." \

if [ $? -ne 0 ]; then
	echo "expecting object to be missing. exiting.."
	exit_1
fi

if [ "${err_minio2}" != "Object does not exist" ]; then
	echo "expected to see Object does not exist error, exiting..."
	exit_1
fi

./mc cp README.md minio2/newbucket/

sleep 5
./mc stat --no-list minio1/newbucket/README.md
if [ $? -ne 0 ]; then
	echo "expecting object to be present. exiting.."
	exit_1
fi

   <span style="background-color:#007166"><font color="#D3D7CF"> module </font></span>  🐍 main.py

     <span style="background-color:#007166"><font color="#D3D7CF"> code </font></span>  Importing the FastAPI app object from the module with the
             following code:

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful