我只是无法理解为什么我的读取时间不起作用。我想做的就是等待
某些线程将消息放入BlockedQueue<String>
并在超时时返回客户端上的某种响应。
public class NioAsynChatPipelineFactory implements ChannelPipelineFactory {
private static Timer timer = new HashedWheelTimer();
private final ChannelHandler timeoutHandler = new ReadTimeoutHandler(timer, 10);
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("decoder", new HttpRequestDecoder());
pipeline.addLast("encoder", new HttpResponseEncoder());
pipeline.addLast("handler", new NioAsynChatHandler());
pipeline.addLast("timeout", this.timeoutHandler);
return pipeline;
}
}
现在我的处理程序看起来像这样。
public class NioAsynChatHandler extends SimpleChannelUpstreamHandler{
@Override
public void handleUpstream(
ChannelHandlerContext ctx, ChannelEvent e) throws Exception {
super.handleUpstream(ctx, e);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
throws Exception {
System.out.println("Exception");
\\writing some kind of response and closing channel.
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
Thread thread = new Thread(new ConsmerTask(e.getChannel()));
thread.start();
}
并且在ConsumerTask中我只是在等待BlockingQueue获得响应
public class ConsumerTask implements Runnable{
private Channel channel;
public ConsumerTask(Channel channel){
this.channel = channel;
}
@Override
public void run() {
try{
while(true){
String message = queue.take();
}
} catch(InterruptedException ex){
Thread.currentThread.interrupt();
} finally{
//write something to channel and close it
}
}
我的问题是我没有看到任何超时发生的重复。 我做错了什么?
更新
public static final BlockingQueue<String> blockingQueue = new LinkedBlockingQueue<String>();
其实我的问题更通用,如何在外部线程中等待某些东西时关闭超时通道?
更新2:
另一个问题:由于我在Cha中运行外部线程,在管道中使用OrderedMemoryAwareThreadPoolExecutor
会更好吗?它会提高性能吗?
答案 0 :(得分:5)
这主要是因为你把ReadTimeoutHandler
置于错误的位置。请把它放在管道的第一个位置(即在所有处理程序之前)。