java - Play!Framework 中的批量 HTTP 请求

Question

我已经实现了当前的一组路由(例如):

GET     /api/:version/:entity               my.controllers.~~~~~
GET     /api/:version/:entity/:id           my.controllers.~~~~~
POST    /api/:version/:entity               my.controllers.~~~~~
POST    /api/:version/:entity/:id           my.controllers.~~~~~
DELETE  /api/:version/:entity               my.controllers.~~~~~

POST    /api/:version/search/:entity        my.controllers.~~~~~

而且它们工作得很好。现在假设我想为同一个 API 实现一个“批量端点”。它应该看起来像这样:

POST    /api/:version/batch                 my.controllers.~~~~~

正文应该如下所示:

[
    {
        "method": "POST",
        "call": "/api/1/customer",
        "body": {
            "name": "antonio",
            "email": "tonysmallhands@gmail.com"
        }
    },
    {
        "method": "POST",
        "call": "/api/1/customer/2",
        "body": {
            "name": "mario"
        }
    },
    {
        "method": "GET",
        "call": "/api/1/company"
    },
    {
        "method": "DELETE",
        "call": "/api/1/company/22"
    }
]

为此，我想知道如何调用 play 框架路由器来传递这些请求？我计划使用与单元测试建议类似的东西:

@Test
public void badRoute() {
  Result result = play.test.Helpers.routeAndCall(fakeRequest(GET, "/xx/Kiki"));
  assertThat(result).isNull();
} 

通过查看routeAndCall()的源代码，您会发现如下内容:

 /**
 * Use the Router to determine the Action to call for this request and executes it.
 * @deprecated
 * @see #route instead
 */
@SuppressWarnings(value = "unchecked")
public static Result routeAndCall(FakeRequest fakeRequest) {
    try {
        return routeAndCall((Class<? extends play.core.Router.Routes>)FakeRequest.class.getClassLoader().loadClass("Routes"), fakeRequest);
    } catch(RuntimeException e) {
        throw e;
    } catch(Throwable t) {
        throw new RuntimeException(t);
    }
}

/**
 * Use the Router to determine the Action to call for this request and executes it.
 * @deprecated
 * @see #route instead
 */
public static Result routeAndCall(Class<? extends play.core.Router.Routes> router, FakeRequest fakeRequest) {
    try {
        play.core.Router.Routes routes = (play.core.Router.Routes)router.getClassLoader().loadClass(router.getName() + "$").getDeclaredField("MODULE$").get(null);
        if(routes.routes().isDefinedAt(fakeRequest.getWrappedRequest())) {
            return invokeHandler(routes.routes().apply(fakeRequest.getWrappedRequest()), fakeRequest);
        } else {
            return null;
        }
    } catch(RuntimeException e) {
        throw e;
    } catch(Throwable t) {
        throw new RuntimeException(t);
    }
}

所以我的问题是:有没有比复制上面的代码更“hacky”的方法来用 Play 来做到这一点(我不反对混合 Scala 和 Java 来实现它)？我还想提供并行或顺序执行批处理调用的选项...我想使用类加载器仅实例化一个 Routes 会有问题吗？

Answer 1

您可以使用以下方法调用来路由您的虚假请求:Play.current.global.onRouteRequest。请参阅这篇文章的完整示例:http://yefremov.net/blog/play-batch-api/