问题描述
我想从java.io.InputStream中读取带有超时的内容.显然，执行此操作的正确方法是使用java.nio.channels.SelectableChannel和java.nio.channels.Selector.不幸的是，目前尚不清楚如何从InputStream转到SelectableChannel.
I want to read from an java.io.InputStream with a timeout. Apparently the correct way to do this is to use java.nio.channels.SelectableChannel and java.nio.channels.Selector. Unfortunately, it's not clear how to go from an InputStream to a SelectableChannel.
InputStream来自非常规来源- http://java.sun.com/products/javacomm/reference/api/javax/comm/CommPort.html#getInputStream()
The InputStream is coming from a non-conventional source -- http://java.sun.com/products/javacomm/reference/api/javax/comm/CommPort.html#getInputStream()
推荐答案
并非所有InputStream都可以保证是可选择的，因此没有简单的方法可以做到这一点.不幸的是CommPort类没有返回SelectableChannel的方法.没有简单，可移植的方式来完成此操作(即不完全破坏封装).
Not all InputStreams are guaranteed to be selectable, so there is no straightforward way to do this. It's unfortunate that the CommPort class doesn't have a method for returning a SelectableChannel; there is no easy, portable way to accomplish this (i.e., without completely breaking encapsulation).
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