/*

 * Copyright (c) 2005, 2006, 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 6354345

 * @summary Check that a double agent request fails

 *

 * @build VMConnection DoubleAgentTest Exit0

 * @run main DoubleAgentTest

 *

 */

import java.io.InputStream;

import java.io.IOException;

import java.io.File;

import java.net.ServerSocket;

import java.net.Socket;

public class DoubleAgentTest {

    static Object locker = new Object();

    static String outputText = "";

    /*

     * Helper class to redirect process output/error

     */

    static class IOHandler implements Runnable {

        InputStream in;

        IOHandler(InputStream in) {

            this.in = in;

        }

        static Thread handle(InputStream in) {

            IOHandler handler = new IOHandler(in);

            Thread thr = new Thread(handler);

            thr.setDaemon(true);

            thr.start();

            return thr;

        }

        public void run() {

            try {

                byte b[] = new byte[100];

                for (;;) {

                    int n = in.read(b, 0, 100);

                    // The first thing that will get read is

                    //    Listening for transport dt_socket at address: xxxxx

                    // which shows the debuggee is ready to accept connections.

                    synchronized(locker) {

                        locker.notify();

                    }

                    if (n < 0) {

                        break;

                    }

                    String s = new String(b, 0, n, "UTF-8");

                    System.out.print(s);

                    synchronized(outputText) {

                        outputText += s;

                    }

                }

            } catch (IOException ioe) {

                ioe.printStackTrace();

            }

        }

    }

    /*

     * Launch a server debuggee with the given address

     */

    private static Process launch(String address, String class_name) throws IOException {

        String exe =   System.getProperty("java.home")

                     + File.separator + "bin" + File.separator;

        String arch = System.getProperty("os.arch");

        String osname = System.getProperty("os.name");

        if (osname.equals("SunOS") && arch.equals("sparcv9")) {

            exe += "sparcv9/java";

        } else if (osname.equals("SunOS") && arch.equals("amd64")) {

            exe += "amd64/java";

        } else {

            exe += "java";

        }

        String jdwpOption = "-agentlib:jdwp=transport=dt_socket"

                         + ",server=y" + ",suspend=y" + ",address=" + address;

        String cmd = exe + " " + VMConnection.getDebuggeeVMOptions()

                         + " " + jdwpOption

                         + " " + jdwpOption

                         + " " + class_name;

        System.out.println("Starting: " + cmd);

        Process p = Runtime.getRuntime().exec(cmd);

        return p;

    }

    /*

     * - pick a TCP port

     * - Launch a server debuggee that should fail

     * - verify we saw error

     */

    public static void main(String args[]) throws Exception {

        // find a free port

        ServerSocket ss = new ServerSocket(0);

        int port = ss.getLocalPort();

        ss.close();

        String address = String.valueOf(port);

        // launch the server debuggee

        Process process = launch(address, "Exit0");

        Thread t1 = IOHandler.handle(process.getInputStream());

        Thread t2 = IOHandler.handle(process.getErrorStream());

        // wait for the debugge to be ready

        synchronized(locker) {

            locker.wait();

        }

        int exitCode = process.waitFor();

        try {

            t1.join();

            t2.join();

        } catch ( InterruptedException e ) {

            e.printStackTrace();

            throw new Exception("Debuggee failed InterruptedException");

        }

        if ( outputText.contains("capabilities") ) {

            throw new Exception(

                "Debuggee failed with ERROR about capabilities: " + outputText);

        }

        if ( !outputText.contains("ERROR") ) {

            throw new Exception(

                "Debuggee does not have ERROR in the output: " + outputText);

        }

        if ( exitCode == 0 ) {

            throw new Exception(

                "Debuggee should have failed with an non-zero exit code");

        }

    }

}