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Java Source | 2000-05-25 | 4.5 KB | 129 lines |
- //: MultiJabberClient.java
- //////////////////////////////////////////////////
- // Copyright (c) Bruce Eckel, 1998
- // Source code file from the book "Thinking in Java"
- // All rights reserved EXCEPT as allowed by the
- // following statements: You can freely use this file
- // for your own work (personal or commercial),
- // including modifications and distribution in
- // executable form only. Permission is granted to use
- // this file in classroom situations, including its
- // use in presentation materials, as long as the book
- // "Thinking in Java" is cited as the source.
- // Except in classroom situations, you cannot copy
- // and distribute this code; instead, the sole
- // distribution point is http://www.BruceEckel.com
- // (and official mirror sites) where it is
- // freely available. You cannot remove this
- // copyright and notice. You cannot distribute
- // modified versions of the source code in this
- // package. You cannot use this file in printed
- // media without the express permission of the
- // author. Bruce Eckel makes no representation about
- // the suitability of this software for any purpose.
- // It is provided "as is" without express or implied
- // warranty of any kind, including any implied
- // warranty of merchantability, fitness for a
- // particular purpose or non-infringement. The entire
- // risk as to the quality and performance of the
- // software is with you. Bruce Eckel and the
- // publisher shall not be liable for any damages
- // suffered by you or any third party as a result of
- // using or distributing software. In no event will
- // Bruce Eckel or the publisher be liable for any
- // lost revenue, profit, or data, or for direct,
- // indirect, special, consequential, incidental, or
- // punitive damages, however caused and regardless of
- // the theory of liability, arising out of the use of
- // or inability to use software, even if Bruce Eckel
- // and the publisher have been advised of the
- // possibility of such damages. Should the software
- // prove defective, you assume the cost of all
- // necessary servicing, repair, or correction. If you
- // think you've found an error, please email all
- // modified files with clearly commented changes to:
- // Bruce@EckelObjects.com. (Please use the same
- // address for non-code errors found in the book.)
- /////////////////////////////////////////////////
-
- // Client that tests the MultiJabberServer
- // by starting up multiple clients.
- import java.net.*;
- import java.io.*;
-
- class JabberClientThread extends Thread {
- private Socket socket;
- private BufferedReader in;
- private PrintWriter out;
- private static int counter = 0;
- private int id = counter++;
- private static int threadcount = 0;
- public static int threadCount() {
- return threadcount;
- }
- public JabberClientThread(InetAddress addr) {
- System.out.println("Making client " + id);
- threadcount++;
- try {
- socket =
- new Socket(addr, MultiJabberServer.PORT);
- } catch(IOException e) {
- // If the creation of the socket fails,
- // nothing needs to be cleaned up.
- }
- try {
- in =
- new BufferedReader(
- new InputStreamReader(
- socket.getInputStream()));
- // Enable auto-flush:
- out =
- new PrintWriter(
- new BufferedWriter(
- new OutputStreamWriter(
- socket.getOutputStream())), true);
- start();
- } catch(IOException e) {
- // The socket should be closed on any
- // failures other than the socket
- // constructor:
- try {
- socket.close();
- } catch(IOException e2) {}
- }
- // Otherwise the socket will be closed by
- // the run() method of the thread.
- }
- public void run() {
- try {
- for(int i = 0; i < 25; i++) {
- out.println("Client " + id + ": " + i);
- String str = in.readLine();
- System.out.println(str);
- }
- out.println("END");
- } catch(IOException e) {
- } finally {
- // Always close it:
- try {
- socket.close();
- } catch(IOException e) {}
- threadcount--; // Ending this thread
- }
- }
- }
-
- public class MultiJabberClient {
- static final int MAX_THREADS = 40;
- public static void main(String[] args)
- throws IOException, InterruptedException {
- InetAddress addr =
- InetAddress.getByName(null);
- while(true) {
- if(JabberClientThread.threadCount()
- < MAX_THREADS)
- new JabberClientThread(addr);
- Thread.currentThread().sleep(100);
- }
- }
- } ///:~