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在开放连接上向Play框架/从Play框架流数据

[英]Streaming data to/from Play framework on an open connection

原文 2013-12-05 15:06:50 1 1 scala/ http/ playframework/ playframework-2.0

I need to send a stream of data to Play server. 我需要将数据流发送到Play服务器。 The length of the stream is unknown and I need to get a response every line break \\n or for every several lines. 流的长度是未知的，我需要在每个换行符\\n或每几行得到一个响应。 Rather then wait for the whole data to be sent. 而是等待整个数据发送出去。

Think of the following usecase: 考虑以下用例：
lets say i'm intended to write a console application, that when launched, connects to my web server, and all the user input are being sent to play on every line break, and gets responded asynchronously. 可以说我打算编写一个控制台应用程序，该应用程序在启动时将连接到我的Web服务器，并且所有用户输入都将在每个换行符上发送以进行播放，并得到异步响应。 All above should be performed on a single connection, ie I don't want to open a new connection on every request I send to Play (a good analog would be 2 processes communicating through 2 pipes) . 以上所有操作都应在单个连接上执行，即我不想在我发送给Play的每个请求上打开新连接（一个很好的模拟是2个进程通过2个管道进行通信） 。
What is the best way to achieve this? 实现此目标的最佳方法是什么？
And is it possible to achieve with a client that communicates with the server only via http (with a single http connection)? 是否可以通过仅通过http（具有单个http连接）与服务器进行通信的客户端来实现？

EDIT: 编辑：
my current thoughts on how to approach this are as follows: 我目前对如何处理此问题的想法如下：
i can define a new BodyParser[Future[String]] which is basically an Iteratee[Array[Byte],Future[String]] . 我可以定义一个新的BodyParser[Future[String]] ，它基本上是一个Iteratee[Array[Byte],Future[String]] 。 while the parsing takes place, i can compute the result asynchronously and the action can return the result as ChunkedResult in the future's onComplete method. 在进行解析时，我可以异步计算结果，并且该操作可以在将来的onComplete方法中将结果作为ChunkedResult返回。