entry.map.put(domain, new HashMap<>());
                        if (log.isTraceEnabled()) {
                            log.trace("Inserting cache entry for domain " + domain + ": " + dr);
                        }
                        dr = dr.next();
                    } while (dr != start);
                    this._domains = entry;

    /**
     * Initializes the query field configuration by loading field mappings from FessConfig.
     * This method is called after dependency injection is complete.
     * It sets up response fields, search fields, facet fields, sort fields, and other
     * field configurations based on the application configuration.
     */
    @PostConstruct
    public void init() {

# 依赖项 { #dependencies }

**FastAPI** 提供了简单直观但功能强大的**<dfn title="也称为：组件、资源、提供者、服务、可注入项">依赖注入</dfn>**系统。

它被设计得非常易用，能让任何开发者都能轻松把其他组件与 **FastAPI** 集成。

## 什么是「依赖注入」 { #what-is-dependency-injection }

在编程中，**「依赖注入」**指的是，你的代码（本文中为*路径操作函数*）声明其运行所需并要使用的东西：“依赖”。

然后，由该系统（本文中为 **FastAPI**）负责执行所有必要的逻辑，为你的代码提供这些所需的依赖（“注入”依赖）。

当你需要以下内容时，这非常有用：

* 共享业务逻辑（同一段代码逻辑反复复用）
* 共享数据库连接
* 实施安全、认证、角色权限等要求
* 以及更多其他内容...

同时尽量减少代码重复。

import java.util.concurrent.atomic.AtomicLong;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.smb.SmbException;

/**
 * Validator for SMB server responses to prevent buffer overflow and injection attacks.
 *
 * Features:
 * - Buffer bounds checking
 * - Integer overflow prevention
 * - Size validation
 * - Protocol compliance checking
 * - Malformed response detection
 */

    // is cancelled.
    future1.cancel(false);

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    // (This is the assertion that fails.)
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();
    executor.shutdown();

from fastapi.encoders import jsonable_encoder
from starlette.responses import HTMLResponse


def _html_safe_json(value: Any) -> str:
    """Serialize a value to JSON with HTML special characters escaped.

    This prevents injection when the JSON is embedded inside a <script> tag.
    """
    return (
        json.dumps(value)
        .replace("<", "\\u003c")
        .replace(">", "\\u003e")
        .replace("&", "\\u0026")
    )

}
```

## 🏗️ Architecture & Design Patterns

### Core Design Principles
CoreLib follows a **utility-class pattern** where most functionality is exposed through static methods:

- **Assertion-based validation** - All methods validate inputs using `AssertionUtil.assertArgumentNotNull()` and `AssertionUtil.assertArgumentNotEmpty()`

            Set<Coordinates> gavs = InferenceStrategy.computeAllArtifactCoordinates(context, largePomMap);
            long endTime = System.currentTimeMillis();

            // Performance assertion - should complete within reasonable time
            long duration = endTime - startTime;
            assertTrue(duration < 5000, "Artifact computation should complete within 5 seconds for 100 POMs");

Esse sistema foi pensado para ser fácil de usar, e permitir que qualquer desenvolvedor possa integrar facilmente outros componentes ao **FastAPI**.

## O que é "Injeção de Dependência" { #what-is-dependency-injection }

    )
    server.enqueue(MockResponse())
    assertFailsWith<SSLPeerUnverifiedException> {
      execute(url)
    }
  }

  /**
   * Skips coalescing when hostname verifier is overridden since the intention of the hostname
   * verification is a black box.
   */
  @Test
  fun skipsWhenHostnameVerifierUsed() {
    val verifier = HostnameVerifier { name: String?, session: SSLSession? -> true }