Hello, experts, i have an problem about interrupt()

Question

here is my code, i wanna test what the client requested/posted ,but it seems that i can't interreput other thread which in io blocked ,how can i solve this? thanks!
package yestalk.playground;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;
public class STC
     public static void main (String[] args) throws Exception
          ServerSocket ss  = new ServerSocket(8889);
          int i = 0;
          long start;
          while (true)
               System.out.println("\r\n------------     "+ (i++));
               Socket so = ss.accept();
               InputStream ins = so.getInputStream();
               InputStreamReader insr = new InputStreamReader( ins, "UTF-8");
               int c;
               try
                    start = System.currentTimeMillis();
                    while((c = insr.read()) != -1)
                         System.out.print((char)c);
                         new Thread(new STC.TimerBreaker(Thread.currentThread(),start,5000)).start();
               }catch(Exception e)
                    System.out.println("timer breaker interrupted me:     "+e.getMessage());
               }finally
                    insr.close();
                    so.close();
     static class TimerBreaker implements Runnable
          long start;
          long interval;
          long current;
          Thread ct;
          public TimerBreaker (Thread t,long start,long interval)
               this.ct=t;
               this.start=start;
               this.interval=interval;
          public void run ()
               while(true)
                    try
                         Thread.sleep(500);
                         current = System.currentTimeMillis();
                         System.out.println((current-start)>interval);
                         if((current-start)>interval)
                              ct.interrupt();
                              System.out.println(" is read thread Interrupted:     "+ct.isInterrupted());
                              System.out.println(" is read thread still alive:     "+ct.isAlive());
                              break;
                    catch (Exception e)
                         System.out.println("timeBreaker exception:     "+e.getMessage());
               System.out.println("timer thread breaked!!!!!!!!!!!!!!!!!!!!!!!");
}i am waiting on board,thanks very much.

Answer 1

sorry, i change my code ,let it more clear.i wanaa see what did the http client requested/posted, but i don't wan't parse the http protocol to know when to close connection precisely,so i think 5s is enough to read all client requested/posted,so i would like "continue read" but close connection in 5s. and the server should continue listening....
but as you say that : java.net.Socket I/O methods aren't specified to be interruptible.
and i see the doc :
public void interrupt() // it's not static method, so i think it cant apply to an instance.
Unless the current thread is interrupting itself, which is always permitted, the checkAccess method of this thread is invoked, which may cause a SecurityException to be thrown.
does interrupt other Thread use another Thread is a proper act?
how can't i achieve my objective? thanks very much.
and , sorry: i change my code three time. now it is not try to establish a new thread every char read.
package yestalk.playground;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;
public class STC
     public static void main (String[] args) throws Exception
          ServerSocket ss  = new ServerSocket(8889);
          int i = 0;
          long start;
          while (true)
               System.out.println("\r\n------------     "+ (i++));
               Socket so = ss.accept();
               InputStream ins = so.getInputStream();
               InputStreamReader insr = new InputStreamReader( ins, "UTF-8");
               int c;
               try
                    new Thread(new STC.TimerBreaker(Thread.currentThread(),5000)).start();
                    while((c = insr.read()) != -1)
                         System.out.print((char)c);
               }catch(Exception e)
                    System.out.println("timer breaker interrupted me:     "+e.getMessage());
               }finally
                    insr.close();
                    so.close();
     static class TimerBreaker implements Runnable
          long interval;
          Thread ct;
          public TimerBreaker (Thread t,int interval)
               this.ct=t;
               this.interval=interval;
          public void run ()
                    try
                         Thread.sleep(interval);
                         ct.interrupt();
                         System.out.println(" is read thread Interrupted:     "+ct.isInterrupted());
                         System.out.println(" is read thread still alive:     "+ct.isAlive());
                    catch (Exception e)
                         System.out.println("timeBreaker exception:     "+e.getMessage());
}Edited by: Johnny on Oct 19, 2008 11:18 PM