/*

 * Copyright (c) 2003, 2016, 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

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 */

import javax.sound.midi.MidiDevice;

import javax.sound.midi.MidiSystem;

import javax.sound.midi.Sequencer;

import javax.sound.midi.Synthesizer;

/**

 * @test

 * @bug 4914667

 * @summary Closing and reopening MIDI IN device on Linux throws

 *          MidiUnavailableException

 */

public class Reopen {

    private static boolean isTestExecuted;

    private static boolean isTestPassed;

    /*

     * run manually:

     * java Reopen 100 in      for 100 iterations on the MIDI IN device

     * java Reopen 16 out      for 16 iterations on the MIDI OUT device

     */

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

        if (args.length == 0) {

            doAllTests();

        } else if (args.length == 2) {

            int numIterations = Integer.parseInt(args[0]);

            if (args[1].equals("in")) {

                doTest(numIterations, true);

            } else {

                doTest(numIterations, false);

            }

        } else {

            out("usage: java Reopen <iterations> in|out");

        }

    }

    private static void doAllTests() throws Exception {

        out("#4914667: Closing and reopening MIDI IN device on Linux throws MidiUnavailableException");

        boolean success = true;

        try {

            success &= doTest(20, true); // MIDI IN

            success &= doTest(20, false); // MIDI OUT

            isTestExecuted = true;

        } catch (Exception e) {

            out(e);

            isTestExecuted = false;

        }

        isTestPassed = success;

        if (isTestExecuted) {

            if (isTestPassed) {

                out("Test PASSED.");

            } else {

                throw new Exception("Test FAILED.");

            }

        } else {

            out("Test NOT FAILED");

        }

    }

    private static boolean doTest(int numIterations, boolean input) throws Exception {

        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();

        MidiDevice outDevice = null;

        MidiDevice inDevice = null;

        for (int i = 0; i < infos.length; i++) {

            MidiDevice device = MidiSystem.getMidiDevice(infos[i]);

            if (! (device instanceof Sequencer) &&

                ! (device instanceof Synthesizer)) {

                if (device.getMaxReceivers() != 0) {

                    outDevice = device;

                }

                if (device.getMaxTransmitters() != 0) {

                    inDevice = device;

                }

            }

        }

        MidiDevice testDevice = null;

        if (input) {

            testDevice = inDevice;

        } else {

            testDevice = outDevice;

        }

        if (testDevice == null) {

            out("Cannot test: device not available.");

            return true;

        }

        out("Using Device: " + testDevice);

        for (int i = 0; i < numIterations; i++) {

            out("@@@ ITERATION: " + i);

            testDevice.open();

            // This sleep ensures that the thread of MidiInDevice is started.

            sleep(50);

            testDevice.close();

        }

        return true;

    }

    private static void sleep(int milliseconds) {

        try {

            Thread.sleep(milliseconds);

        } catch (InterruptedException e) {

        }

    }

    private static void out(Throwable t) {

        t.printStackTrace(System.out);

    }

    private static void out(String message) {

        System.out.println(message);

    }

}