Source Code : Socket connection and concurrent package

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Socket connection and concurrent package

      

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

public class ExecutorHttpd {
  ExecutorService executor = Executors.newFixedThreadPool(3);

  public void start(int port) throws IOException {
    final ServerSocket ss = new ServerSocket(port);
    while (!executor.isShutdown())
      executor.submit(new TinyHttpdConnection(ss.accept()));
  }

  public void shutdown() throws InterruptedException {
    executor.shutdown();
    executor.awaitTermination(30, TimeUnit.SECONDS);
    executor.shutdownNow();
  }

  public static void main(String argv[]) throws Exception {
    new ExecutorHttpd().start(Integer.parseInt(argv[0]));
  }
}

class TinyHttpdConnection implements Runnable {
  Socket client;

  TinyHttpdConnection(Socket client) throws SocketException {
    this.client = client;
  }

  public void run() {
    try {
      BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream(),
          "8859_1"));
      OutputStream out = client.getOutputStream();
      PrintWriter pout = new PrintWriter(new OutputStreamWriter(out, "8859_1"), true);
      String request = in.readLine();
      System.out.println("Request: " + request);

      byte[] data = "hello".getBytes();
      out.write(data, 0, data.length);
      out.flush();
      client.close();
    } catch (IOException e) {
      System.out.println("I/O error " + e);
    }
  }
}

   
    
    
    
    
    
  

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