java – 如何处理Jetty异常 – 长时间运行的HTTP请求超时,但它所

有3例：

>进程X在HTTP请求的超时时间之前完成 –
没问题
>进程X在请求的超时时间结束 – 否
问题
>进程X从不完成 – 发生异常

如何检测这种情况(3)并防止异常,同时允许其他两种情况正常工作？

例外：

2012-06-18 00:13:31.055:WARN:oejut.QueuedThreadPool:
java.lang.IllegalStateException: IDLE,initial
  at org.eclipse.jetty.server.AsyncContinuation.complete(AsyncContinuation.java:569)
  at server.AsyncHTTPRequestProcessor.run(AsyncHTTPRequestProcessor.java:72)
  at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1119)
  at org.eclipse.jetty.server.AsyncContinuation$1.run(AsyncContinuation.java:875)
  at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
  at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
  at java.lang.Thread.run(Thread.java:679)

Jetty继续HTTP请求：

public class AsyncHTTPRequestProcessor implements Runnable {

    private ConcurrentHashMap<String,String> collector;
    private Logger logger;
    private AsyncContext ctx;
    //Defined this here because of strange behaviour when running junit
    //tests and the response json string being empty...
    private String responseStr = null;

    public AsyncHTTPRequestProcessor(AsyncContext _ctx,ConcurrentHashMap<String,String> _collector,Logger _logger) {
        ctx = _ctx;
        collector = _collector;
        logger = _logger;
    }

    @Override
    public void run() {

        logger.info("AsyncContinuation start");

        //if(!((AsyncContinuation)ctx).isInitial()){
        String rid = (String) ctx.getRequest().getAttribute("rid");
        int elapsed = 0;
        if(rid !=null)
        {

            logger.info("AsyncContinuation rid="+rid);

            while(elapsed<ctx.getTimeout())
            {
                if(collector.containsKey(rid)){
                    responseStr = collector.get(rid);
                    collector.remove(rid);

                    logger.info("--->API http request in collector:"+responseStr);
                    ctx.getRequest().setAttribute("status",200);
                    ctx.getRequest().setAttribute("response",responseStr);
                    ctx.getRequest().setAttribute("endTime",System.currentTimeMillis());
                    //ctx.complete();
                    break;
                }
                try {
                    Thread.sleep(10);
                    elapsed+=10;
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            //}
            logger.info("Collector in async stuff:");
            for(String key:collector.keySet()){
                logger.info(key+"->"+collector.get(key));
            }

            for(Entry<String,String> x:collector.entrySet()){
                logger.info(x.getKey()+"->"+x.getValue());
            }
            ctx.complete(); <---- this line 72
        }
    }

}