/*

 * 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

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 */

/**

 * @test

 * @key headful

 * @summary Tests that no exception is thrown when display mode is changed

 *          externally

 * @compile UninitializedDisplayModeChangeTest.java DisplayModeChanger.java

 * @run main/othervm UninitializedDisplayModeChangeTest

 */

import java.awt.EventQueue;

import java.awt.Toolkit;

import java.io.BufferedReader;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.lang.reflect.InvocationTargetException;

public class UninitializedDisplayModeChangeTest {

    public static volatile boolean failed = false;

    public static void main(String[] args) {

        Toolkit.getDefaultToolkit();

        try {

            EventQueue.invokeAndWait(new Runnable() {

                public void run() {

                    Thread.currentThread().setDefaultUncaughtExceptionHandler(

                        new Thread.UncaughtExceptionHandler() {

                            public void uncaughtException(Thread t,

                                                          Throwable e)

                            {

                                System.err.println("Exception Detected:");

                                e.printStackTrace();

                                failed = true;

                            }

                        }

                    );

                }

            });

        } catch (InterruptedException ex) {

            ex.printStackTrace();

        } catch (InvocationTargetException ex) {

            ex.printStackTrace();

        }

        Process childProc;

        String classPath = System.getProperty("java.class.path" , ".");

        String cmd = new String(System.getProperty("java.home") +

                File.separator +

                "bin" +

                File.separator +

                "java -cp " + classPath +

                " DisplayModeChanger");

        System.out.println("Launching the display mode changer process");

        System.out.println("cmd="+cmd);

        try {

            childProc = Runtime.getRuntime().exec(cmd);

            StreamProcessor err =

                new StreamProcessor("stderr", childProc.getErrorStream());

            StreamProcessor out =

                new StreamProcessor("stdout", childProc.getInputStream());

            err.start();

            out.start();

            childProc.waitFor();

        } catch (Exception e) {

            failed = true;

            e.printStackTrace();

        }

        if (failed) {

            throw new RuntimeException("Test Failed: exception detected");

        }

        System.out.println("Test Passed.");

    }

    static class StreamProcessor extends Thread {

        InputStream is;

        String inputType;

        StreamProcessor(String inputType, InputStream is) {

            this.inputType = inputType;

            this.is = is;

        }

        public void run() {

            try {

                InputStreamReader isr = new InputStreamReader(is);

                BufferedReader br = new BufferedReader(isr);

                String line = null;

                while ( (line = br.readLine()) != null) {

                    System.out.println("Display Changer "+inputType+

                                       " output > " + line);

                }

            } catch (IOException ioe) {

                ioe.printStackTrace();

            }

        }

    }

}