* limitations under the License.
 */

package com.google.common.graph;

import org.jspecify.annotations.Nullable;

/**
 * A base class for builders that construct graphs with user-defined properties.
 *
 * @author James Sexton
 */
abstract class AbstractGraphBuilder<N> {
  final boolean directed;
  boolean allowsSelfLoops = false;
  ElementOrder<N> nodeOrder = ElementOrder.insertion();

import com.google.common.annotations.J2ktIncompatible;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests that {@link AggregateFutureState} uses the expected {@code AtomicHelper} implementation.
 *
 * <p>We have more thorough testing of {@code AtomicHelper} implementations in {@link
 * AggregateFutureStateFallbackAtomicHelperTest}. The advantage to this test is that it can run

*----------+--------------------------------------------+-----------------------+
||         || system level                              || user level 
*----------+--------------------------------------------+-----------------------+
|| POSIX   | <<</etc/mavenrc>>>\
||         | <<</usr/local/etc/mavenrc>>> (since 3.8.2) | <<<$HOME/.mavenrc>>> 

# Usar los códigos de estado antiguos 403 para errores de autenticación { #use-old-403-authentication-error-status-codes }

Antes de FastAPI versión `0.122.0`, cuando las utilidades de seguridad integradas devolvían un error al cliente después de una autenticación fallida, usaban el código de estado HTTP `403 Forbidden`.

# to setting up up volume mappings.
# Thus, the drive letter is replaced with the passed prefix.
# If no prefix is passed, by default, it's replaced with C:\, in case it's
# something else (ex. T:), which is a volume used in internal CI.
function replace_drive_letter_with_prefix () {
  local path_prefix
  if [[ -z "$2" ]]; then
    path_prefix="C:"
  else
    path_prefix="$2"
  fi
  sed -E "s|^[a-zA-Z]:|${path_prefix}|g" <<< "$1"

As recommended by the HTTP RFC the max age of a document is defaulted to 10% of the
document's age at the time it was served based on "Last-Modified". Default expiration dates aren't used for URIs
containing a query.

 - CallStart
 - **CacheHit**
 - CallEnd

### Cache Miss

Under a cache miss the normal request events are seen but an additional event shows the presence of the cache.

    }
  }

  /**
   * Returns an optional enum constant for the given type, using {@link Enum#valueOf}. If the
   * constant does not exist, {@link Optional#absent} is returned. A common use case is for parsing
   * user input or falling back to a default enum constant. For example, {@code
   * Enums.getIfPresent(Country.class, countryInput).or(Country.DEFAULT);}
   *
   * @since 12.0
   */

This topic provides commands to set up different configurations of hosts, nodes, and drives. The examples provided here can be used as a starting point for other configurations.

1. [Standalone Deployment](#standalone-deployment)
2. [Distributed Deployment](#distributed-deployment)
3. [Cloud Scale Deployment](#cloud-scale-deployment)

                modelRequest.setProcessPlugins(false);
                modelRequest.setTwoPhaseBuilding(false);
                // This merge is on purpose because otherwise user properties would override model
                // properties in dependencies the user does not know. See MNG-7563 for details.
                modelRequest.setSystemProperties(
                        toProperties(session.getUserProperties(), session.getSystemProperties()));

点击小锁图标，注销后，再执行同样的操作，则会得到 HTTP 401 错误：

```JSON
{
  "detail": "Not authenticated"
}
```

### 未激活用户 { #inactive-user }

测试未激活用户，输入以下信息，进行身份验证：

用户名：`alice`

密码：`secret2`

然后，执行 `/users/me` 路径的 `GET` 操作。

显示下列**未激活用户**错误信息：

```JSON
{
  "detail": "Inactive user"
}
```

## 小结 { #recap }

使用本章的工具实现基于 `username` 和 `password` 的完整 API 安全系统。