/*

 * Copyright (c) 2017, 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.

 */

import java.io.BufferedInputStream;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.ArrayList;

import java.util.List;

import javax.sound.sampled.AudioFileFormat;

import javax.sound.sampled.AudioFormat;

import javax.sound.sampled.AudioInputStream;

import javax.sound.sampled.UnsupportedAudioFileException;

import javax.sound.sampled.spi.AudioFileReader;

import javax.sound.sampled.spi.AudioFileWriter;

import static java.util.ServiceLoader.load;

import static javax.sound.sampled.AudioFileFormat.Type.AIFC;

import static javax.sound.sampled.AudioFileFormat.Type.AIFF;

import static javax.sound.sampled.AudioFileFormat.Type.AU;

import static javax.sound.sampled.AudioFileFormat.Type.SND;

import static javax.sound.sampled.AudioFileFormat.Type.WAVE;

import static javax.sound.sampled.AudioSystem.NOT_SPECIFIED;

/**

 * @test

 * @bug 8191384

 * @summary the stream returned by AudioFileReader should close its data stream

 */

public final class AudioInputStreamClose {

    static final class StreamWrapper extends BufferedInputStream {

        private boolean open = true;

        StreamWrapper(final InputStream in) {

            super(in);

        }

        @Override

        public void close() throws IOException {

            super.close();

            open = false;

        }

        boolean isOpen() {

            return open;

        }

    }

    /**

     * We will try to use all formats, in this case all our providers will be

     * covered by supported/unsupported formats.

     */

    private static final List<AudioFormat> formats = new ArrayList<>(23000);

    private static final AudioFormat.Encoding[] encodings = {

            AudioFormat.Encoding.ALAW, AudioFormat.Encoding.ULAW,

            AudioFormat.Encoding.PCM_SIGNED, AudioFormat.Encoding.PCM_UNSIGNED,

            AudioFormat.Encoding.PCM_FLOAT, new AudioFormat.Encoding("Test")

    };

    private static final int[] sampleBits = {1, 4, 8, 11, 16, 20, 24, 32};

    private static final int[] channels = {1, 2, 3, 4, 5};

    private static final AudioFileFormat.Type[] types = {

            WAVE, AU, AIFF, AIFC, SND,

            new AudioFileFormat.Type("TestName", "TestExt")

    };

    private static final int FRAME_LENGTH = 10;

    static {

        for (final int sampleSize : sampleBits) {

            for (final int channel : channels) {

                for (final AudioFormat.Encoding enc : encodings) {

                    final int frameSize = ((sampleSize + 7) / 8) * channel;

                    formats.add(new AudioFormat(enc, 44100, sampleSize, channel,

                                                frameSize, 44100, true));

                    formats.add(new AudioFormat(enc, 44100, sampleSize, channel,

                                                frameSize, 44100, false));

                }

            }

        }

    }

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

        for (final AudioFileWriter afw : load(AudioFileWriter.class)) {

            for (final AudioFileReader afr : load(AudioFileReader.class)) {

                for (final AudioFileFormat.Type type : types) {

                    for (final AudioFormat from : formats) {

                        test(afw, afr, type, getStream(from, true));

                        test(afw, afr, type, getStream(from, false));

                    }

                }

            }

        }

    }

    /**

     * Writes and reads the data to/from the stream.

     */

    private static void test(final AudioFileWriter afw,

                             final AudioFileReader afr,

                             final AudioFileFormat.Type type,

                             final AudioInputStream ais)

            throws IOException {

        try {

            final ByteArrayOutputStream out = new ByteArrayOutputStream();

            afw.write(ais, type, out);

            final InputStream input = new ByteArrayInputStream(out.toByteArray());

            final StreamWrapper wrapper = new StreamWrapper(input);

            // the wrapper should be closed as well

            afr.getAudioInputStream(wrapper).close();

            if (wrapper.isOpen()) {

                System.err.println("Writer = " + afw);

                System.err.println("Reader = " + afr);

                throw new RuntimeException("Stream was not closed");

            }

        } catch (IOException | IllegalArgumentException |

                UnsupportedAudioFileException ignored) {

        }

    }

    private static AudioInputStream getStream(final AudioFormat format,

                                              final boolean frameLength) {

        final int dataSize = FRAME_LENGTH * format.getFrameSize();

        byte[] buf = new byte[dataSize];

        final InputStream in = new ByteArrayInputStream(buf);

        if (frameLength) {

            return new AudioInputStream(in, format, FRAME_LENGTH);

        } else {

            return new AudioInputStream(in, format, NOT_SPECIFIED);

        }

    }

}