/*

 * Copyright (c) 2002, 2013, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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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 */

package com.sun.media.sound;

import javax.sound.midi.*;

/**

 * optimized FastSysexMessage that doesn't copy the array upon instantiation

 *

 * @author Florian Bomers

 */

final class FastSysexMessage extends SysexMessage {

    FastSysexMessage(byte[] data) throws InvalidMidiDataException {

        super(data);

        if (data.length==0 || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) {

            super.setMessage(data, data.length); // will throw Exception

        }

    }

    /**

     * The returned array may be larger than this message is.

     * Use getLength() to get the real length of the message.

     */

    byte[] getReadOnlyMessage() {

        return data;

    }

    // overwrite this method so that the original data array,

    // which is shared among all transmitters, cannot be modified

    public void setMessage(byte[] data, int length) throws InvalidMidiDataException {

        if ((data.length == 0) || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) {

            super.setMessage(data, data.length); // will throw Exception

        }

        this.length = length;

        this.data = new byte[this.length];

        System.arraycopy(data, 0, this.data, 0, length);

    }

} // class FastSysexMessage