ioe = new InterruptedIOException(root.getMessage());
            ioe.initCause(root);
        }
        return ioe;
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void close() throws IOException {
        try {

  - Support allocatable resources overrides via VMSS tags
  - Add missing stable labels in template nodes
  - Proactively set instance status to deleting on node deletions
  
  ### Cluster API
  - Migrate interaction with the API from using internal types to using Unstructured
  - Improve tests to work better with constrained resources
  - Add support for node auto-discovery

  }

  private void doExtensiveTest(String resourceName) throws IOException {
    Splitter splitter = Splitter.on(CharMatcher.whitespace());
    URL url = getClass().getResource(resourceName);
    for (String line : Resources.readLines(url, UTF_8)) {
      Iterator<String> iterator = splitter.split(line).iterator();
      String input = iterator.next();
      String expectedOutput = iterator.next();
      assertFalse(iterator.hasNext());

  }

  private void doExtensiveTest(String resourceName) throws IOException {
    Splitter splitter = Splitter.on(CharMatcher.whitespace());
    URL url = getClass().getResource(resourceName);
    for (String line : Resources.readLines(url, UTF_8)) {
      Iterator<String> iterator = splitter.split(line).iterator();
      String input = iterator.next();
      String expectedOutput = iterator.next();
      assertFalse(iterator.hasNext());

Use dependencies when the logic can't be declared in Pydantic validation, depends on external resources, needs cleanup (with `yield`), or is shared across endpoints.

Apply shared dependencies at the router level via `dependencies=[Depends(...)]`.

## Async vs Sync *path operations*

// Every 10 seconds a space character is sent.
// keepHTTPReqResponseAlive will wait for the returned body to be read before starting the ticker.
// The returned function should always be called to release resources.
// An optional error can be sent which will be picked as text only error,
// without its original type by the receiver.
// waitForHTTPResponse should be used to the receiving side.

 * your HTTP calls. This is because each client holds its own connection pool and thread pools.
 * Reusing connections and threads reduces latency and saves memory. Conversely, creating a client
 * for each request wastes resources on idle pools.
 *
 * Use `new OkHttpClient()` to create a shared instance with the default settings:
 *
 * ```java
 * // The singleton HTTP client.
 * public final OkHttpClient client = new OkHttpClient();
 * ```

...path şöyle olur:

```
/items/foo
```

/// info | Bilgi

Bir "path" genellikle "endpoint" veya "route" olarak da adlandırılır.

///

Bir API oluştururken, "path", "concerns" ve "resources" ayrımını yapmanın ana yoludur.

#### Operation { #operation }

Burada "Operation", HTTP "method"larından birini ifade eder.

Şunlardan biri:

* `POST`
* `GET`
* `PUT`
* `DELETE`

加上来自 Starlette（包括 **session cookie**）的所有安全特性。

所有的这些都是可复用的工具和组件，可以轻松与你的系统，数据仓库，关系型以及 NoSQL 数据库等等集成。

### 依赖注入 { #dependency-injection }

FastAPI 有一个使用非常简单，但是非常强大的<dfn title='也称为 "components"、"resources"、"services"、"providers"'><strong>依赖注入</strong></dfn>系统。

* 甚至依赖也可以有依赖，创建一个层级或者**“图”依赖**。
* 所有**自动化处理**都由框架完成。
* 所有的依赖关系都可以从请求中获取数据，并且**增加了路径操作**约束和自动文档生成。
* 即使是在依赖项中定义的路径操作参数也会**自动验证**。
* 支持复杂的用户身份认证系统，**数据库连接**等等。

            synchronized (this) {
                // Force disconnection
                this.connectionState.set(0);
                this.tid = -1;

                // Clear any cached resources
                // Note: Most fields in SmbTreeImpl are final or managed differently

                // Clear session reference if mutable
                // Note: session field may be final, cannot be nulled