Java example source code file (B6373555.java)

This example Java source code file (B6373555.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

b6373555, bytearrayoutputstream, client, content\-type, exception, executorservice, httpcontext, httpserver, inetsocketaddress, inputstream, ioexception, net, network, num, post, threading, threads, url, util

The B6373555.java Java example source code

/*
 * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @bug 6373555
 * @summary HTTP Server failing to answer client requests
 */

import java.net.*;
import java.io.*;
import javax.xml.soap.*;
import java.util.*;
import com.sun.net.httpserver.*;
import java.util.concurrent.*;

public class B6373555 {

    private static int s_received = 0;
    private static int sent = 0;

    private static int received = 0;
    private static int port;

    private static volatile boolean error = false;
    static HttpServer httpServer;
    static ExecutorService pool, execs;
    static int NUM = 1000;

    public static void main(String[] args) throws Exception {
        try {
            if (args.length > 0) {
                NUM = Integer.parseInt (args[0]);
            }
            execs = Executors.newFixedThreadPool(5);
            httpServer = createHttpServer(execs);
            port = httpServer.getAddress().getPort();
            pool = Executors.newFixedThreadPool(10);
            httpServer.start();
            for (int i=0; i < NUM; i++) {
                pool.execute(new Client());
                if (error) {
                    throw new Exception ("error in test");
                }
            }
            System.out.println("Main thread waiting");
            pool.shutdown();
            long latest = System.currentTimeMillis() + 200 * 1000;
            while (System.currentTimeMillis() < latest) {
                if (pool.awaitTermination(2000L, TimeUnit.MILLISECONDS)) {
                    System.out.println("Main thread done!");
                    return;
                }
                if (error) {
                    throw new Exception ("error in test");
                }
            }
            throw new Exception ("error in test: timed out");
        } finally {
            httpServer.stop(0);
            pool.shutdownNow();
            execs.shutdownNow();
        }
    }

    public static class Client implements Runnable {

        byte[] getBuf () {
            byte[] buf = new byte [5200];
            for (int i=0; i< 5200; i++) {
                buf [i] = (byte)i;
            }
            return buf;
        }

        public void run() {
            try {
                Thread.sleep(10);
                byte[] buf = getBuf();
                URL url = new URL("http://127.0.0.1:"+port+"/test");
                HttpURLConnection con = (HttpURLConnection)url.openConnection();
                con.setDoOutput(true);
                con.setDoInput(true);
                con.setRequestMethod("POST");
                con.setRequestProperty(
                    "Content-Type",
                    "Multipart/Related; type=\"application/xop+xml\"; boundary=\"----=_Part_0_6251267.1128549570165\"; start-info=\"text/xml\"");
                OutputStream out = con.getOutputStream();
                out.write(buf);
                out.close();
                InputStream in = con.getInputStream();
                byte[] newBuf = readFully(in);
                in.close();
                if (buf.length != newBuf.length) {
                    System.out.println("Doesn't match");
                    error = true;
                }
            }
            catch(Exception e) {
                e.printStackTrace();
                System.out.print (".");
                error = true;
            }
        }
    }

    private static byte[] readFully(InputStream istream) throws IOException {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        int num = 0;

        if (istream != null) {
            while ((num = istream.read(buf)) != -1) {
                bout.write(buf, 0, num);
            }
        }
        byte[] ret = bout.toByteArray();
        return ret;
    }


    private static HttpServer createHttpServer(ExecutorService execs)
        throws Exception {
        InetSocketAddress inetAddress = new InetSocketAddress(0);
        HttpServer testServer = HttpServer.create(inetAddress, 15);
        testServer.setExecutor(execs);
        HttpContext context = testServer.createContext("/test");
        context.setHandler(new HttpHandler() {
            public void handle(HttpExchange msg) {
                try {
                    String method = msg.getRequestMethod();
                        if (method.equals("POST")) {
                        InputStream is = msg.getRequestBody();
                            byte[] buf = readFully(is);
                            is.close();
                            writePostReply(msg, buf);
                    } else {
                        System.out.println("****** METHOD not handled ***** "+method);
                            System.out.println("Received="+s_received);
                    }
                }
                catch(Exception e) {
                    e.printStackTrace();
                }
                finally {
                    msg.close();
                }
            }
        }
        );
        return testServer;
    }

    private static void writePostReply(HttpExchange msg, byte[] buf)
        throws Exception {
        msg.getResponseHeaders().add("Content-Type", "text/xml");
        msg.sendResponseHeaders(200, buf.length);
        OutputStream out = msg.getResponseBody();
        out.write(buf);
        out.close();
    }

}