case NEW:
        case TERMINATED:
          throw new IllegalStateException("Failed while in state:" + previous, cause);
        case RUNNING:
        case STARTING:
        case STOPPING:
          snapshot = new StateSnapshot(FAILED, false, cause);
          enqueueFailedEvent(previous, cause);
          break;
        case FAILED:
          // Do nothing
          break;
      }
    } finally {

///

## Importer `File` { #import-file }

Importez `File` et `UploadFile` depuis `fastapi` :

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

## Définir des paramètres `File` { #define-file-parameters }

Créez des paramètres de fichier de la même manière que pour `Body` ou `Form` :

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}

///

## Importar `File` { #import-file }

Importa `File` y `UploadFile` desde `fastapi`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

## Definir Parámetros `File` { #define-file-parameters }

Crea parámetros de archivo de la misma manera que lo harías para `Body` o `Form`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}

/// info | Información

# Arquivos Estáticos { #static-files }

Você pode servir arquivos estáticos automaticamente a partir de um diretório usando `StaticFiles`.

## Use `StaticFiles` { #use-staticfiles }

* Importe `StaticFiles`.
* "Monte" uma instância de `StaticFiles()` em um path específico.

{* ../../docs_src/static_files/tutorial001_py310.py hl[2,6] *}

/// note | Detalhes Técnicos

Você também pode usar `from starlette.staticfiles import StaticFiles`.

# 请求文件 { #request-files }

你可以使用 `File` 定义由客户端上传的文件。

/// info | 信息

要接收上传的文件，请先安装 [`python-multipart`](https://github.com/Kludex/python-multipart)。

请确保你创建一个[虚拟环境](../virtual-environments.md)、激活它，然后安装，例如：

```console
$ pip install python-multipart
```

这是因为上传文件是以「表单数据」发送的。

///

## 导入 `File` { #import-file }

从 `fastapi` 导入 `File` 和 `UploadFile`：

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

# 静态文件 { #static-files }

你可以使用 `StaticFiles` 从目录中自动提供静态文件。

## 使用 `StaticFiles` { #use-staticfiles }

* 导入 `StaticFiles`。
* 将一个 `StaticFiles()` 实例“挂载”（Mount）到指定路径。

{* ../../docs_src/static_files/tutorial001_py310.py hl[2,6] *}

/// note | 技术细节

你也可以用 `from starlette.staticfiles import StaticFiles`。

**FastAPI** 提供了和 `starlette.staticfiles` 相同的 `fastapi.staticfiles`，只是为了方便你这个开发者。但它确实直接来自 Starlette。

///

        assertNotNull(e2);
        assertEquals("first", e1.getName());
        assertEquals(acceptedName, e2.getName(), "Should return the first name accepted by filter");

        // Verify filter interactions: not called for '.' and '..', called for others
        verify(nameFilter, never()).accept(parent, ".");
        verify(nameFilter, never()).accept(parent, "..");

            return;
        }
        String filter = subRoleSet.stream().map(s -> String.format(groupFilter, s)).collect(Collectors.joining());
        if (subRoleSet.size() > 1) {
            filter = "(|" + filter + ")";
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Group filter: {}", filter);
        }

      new Runnable() {
        @Override
        public void run() {}
      };

  boolean called = false;

  private void assertSingleCallWithCorrectParameters(
      Runnable command, long initialDelay, long delay, TimeUnit unit) {
    assertFalse(called); // only called once.
    called = true;
    assertEquals(INITIAL_DELAY, initialDelay);
    assertEquals(DELAY, delay);
    assertEquals(UNIT, unit);

      new Runnable() {
        @Override
        public void run() {}
      };

  boolean called = false;

  private void assertSingleCallWithCorrectParameters(
      Runnable command, long initialDelay, long delay, TimeUnit unit) {
    assertFalse(called); // only called once.
    called = true;
    assertEquals(INITIAL_DELAY, initialDelay);
    assertEquals(DELAY, delay);
    assertEquals(UNIT, unit);